[fen]1r4r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - -[/fen]
This position is an old chestnut dating back to ~2007. In those days Ruffian was amazingly fast at finding Qxg6+, which is mate in 15. Over the years I've tested many engines using the position. Critter is one of the fastest at solving (~5 seconds). But Stockfish has always had problems. Even Stockfish 15 takes 3 min 30 sec to find the key move (1 thread, i9). The development version has made some changes to the singularity extensions so I decided to see if it made a difference in this position — and it did! Stockfish 22051520, with one thread and 4Gb of hash find Qxg6 in 30 seconds — a nice speedup!
Steve
Stockfish Development Version: Finds Mate Much Quicker...
Moderators: hgm, Dann Corbit, Harvey Williamson
-
Steve Maughan
- Posts: 1218
- Joined: Wed Mar 08, 2006 8:28 pm
- Location: Florida, USA
Stockfish Development Version: Finds Mate Much Quicker...
http://www.chessprogramming.net - Maverick Chess Engine
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bmp1974
- Posts: 73
- Joined: Wed Dec 04, 2019 11:25 am
- Full name: Prasanna Bandihole
Re: Stockfish Development Version: Finds Mate Much Quicker...
On the other hand, consider the following position.
[fen]2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - 0 1[/fen]
Stockfish 15 finds the solution starting with f6!! in less than 60 sec. But the current dev version takes a lot of time to solve.
what transpired between SF15 & now is not known.
[fen]2b1rk2/5p2/p1P5/2p2P2/2p5/7B/P7/2KR4 w - - 0 1[/fen]
Stockfish 15 finds the solution starting with f6!! in less than 60 sec. But the current dev version takes a lot of time to solve.
what transpired between SF15 & now is not known.
-
Jouni
- Posts: 3227
- Joined: Wed Mar 08, 2006 8:15 pm
Re: Stockfish Development Version: Finds Mate Much Quicker...
SF finds 1.f6 practically INSTANTLY (multicore) and it's about mate in 29:
Analysis by Stockfish 15:
...
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Ra1 5.Bxc8 Rxa2+ 6.Kc3 Kh6 7.Bxa6 Rxa6 8.c8Q Rxf6 9.Rh8+ Kg5 10.Qxc5+ Kf4 11.Qxc4+ Kg5 12.Rg8+ Rg6 13.Rxg6+ fxg6 14.Qd5+ Kh6
+- (13.07) Depth: 16/30 00:00:01 9466kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Re5 5.Bxc8 Kg6 6.Bxa6 Kf5 7.c8Q+ Kf4 8.Rg8 Rd5+ 9.Kc3 Rd3+ 10.Kxc4 Rd1 11.Qg4+ Ke5 12.Rg5+ Kd6 13.Qxd1+ Ke6 14.Kxc5
+- (13.86) Depth: 17/31 00:00:01 17087kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 a5 5.Kxe1 Ba6 6.Bc8 Bxc8 7.Rxc8 c3 8.Rd8 Kg6 9.c8Q c2 10.Qxc5 Kxf6 11.Qxc2
+- (13.65) Depth: 18/36 00:00:03 33084kN
1.f6
+- (16.28 ++) Depth: 19/26 00:00:04 40992kN
1.f6
+- (18.50 ++) Depth: 19/27 00:00:05 51540kN
1.f6
+- (21.29 ++) Depth: 19/38 00:00:09 80742kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Re4 5.Bxc8 Rd4+ 6.Kc2 Rf4 7.Bxa6 Re4 8.c8Q Kg6 9.Rg8+ Kxf6 10.Kd2 Rd4+ 11.Kc3 Rd3+ 12.Kxc4 Rd4+ 13.Kxc5
+- (21.30) Depth: 19/38 00:00:09 83610kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Re4 5.Bxc8 Rd4+ 6.Kc2 Rf4 7.Bxa6 Rf2+ 8.Kc3 Rf3+ 9.Kxc4 Rxf6 10.c8Q Re6 11.Kc3 Kh6 12.Rh8+ Kg5 13.Qxc5+ f5 14.Rg8+ Rg6 15.Qg1+ Kf6 16.Qxg6+ Ke5
+- (22.41) Depth: 20/33 00:00:11 99330kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Re4 5.Bxc8 Rd4+ 6.Kc2 Rxd8 7.cxd8Q a5 8.Qxa5 Kh6 9.Qxc5 Kg6 10.Bf5+ Kxf6 11.Qxc4 Ke7 12.Qc5+ Kf6 13.Kd2
+- (26.77) Depth: 21/29 00:00:15 133mN
1.f6
+- (32.09 ++) Depth: 22/31 00:00:17 161mN
1.f6
+- (39.02 ++) Depth: 22/31 00:00:18 168mN
1.f6
+- (54.02 ++) Depth: 22/31 00:00:18 171mN
1.f6 Kg8
+- (18.05 --) Depth: 22/31 00:00:19 171mN
1.f6
+- (41.54 ++) Depth: 22/31 00:00:19 171mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Bxc8 7.Rxc8 c3 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Ra3 Ke4 11.Rxa6 Kd3 12.Rf6 Kc3 13.Rxf7 Kd3
+- (12.41) Depth: 22/31 00:00:19 172mN
1.f6
+- (25.31 ++) Depth: 23/28 00:00:19 172mN
1.f6
+- (30.00 ++) Depth: 23/29 00:00:19 172mN
1.f6
+- (36.58 ++) Depth: 23/29 00:00:19 172mN
1.f6
+- (54.02 ++) Depth: 23/29 00:00:19 172mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Kxf6 7.Qxh3 a5 8.Kd2 a4 9.Rg8 Ke7 10.Qc3 Kd6 11.Qxc4
+- (54.62) Depth: 23/29 00:00:19 172mN
1.f6 Kg8
+- (20.59 --) Depth: 24/25 00:00:19 172mN
1.f6
+- (54.02 ++) Depth: 24/31 00:00:19 173mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.Rh8 Bd7 7.c8Q Bb5 8.Qg4+ Kxf6 9.Qf4+ Ke7 10.Qe5+ Kd7 11.Rh7 c3 12.Rxf7+ Kc6
+- (12.66) Depth: 24/31 00:00:19 175mN
1.f6
+- (54.02 ++) Depth: 25/30 00:00:19 175mN
1.f6 Kg8
+- (17.62 --) Depth: 25/30 00:00:19 175mN
1.f6
+- (54.02 ++) Depth: 25/30 00:00:19 175mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Bd7 4.Bxd7 Rxd8 5.cxd8Q Kg6 6.Kd2 c3+ 7.Kxc3 Kg5 8.Qe7 Kg6 9.Bf5+ Kg5 10.Qxf7 Kf4 11.Qc7+ Kg5 12.Qxc5 Kxf6 13.Qb6+ Kf7
+- (54.62) Depth: 25/32 00:00:19 176mN
1.f6 Kg8
+- (22.20 --) Depth: 26/35 00:00:20 180mN
1.f6
+- (54.62 ++) Depth: 26/35 00:00:20 180mN
1.f6 c3 2.c7 Bb7 3.Rd8 c2 4.Kxc2 a5 5.Bd7 Kg8 6.Bf5 Kf8 7.Kc3 c4 8.Bd7 Kg8 9.Bxe8 Kh7 10.Bxf7 Kh6 11.Bxc4 Bf3 12.Rg8 Kh5 13.Rh8+ Kg6
+- (54.95) Depth: 26/35 00:00:20 181mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Ra1 5.Bxc8 Kg6 6.Bb7 Rxa2+ 7.Kc3 Ra3+ 8.Kxc4 Ra4+ 9.Kxc5 Ra1 10.Bxa6 Kxf6 11.c8Q Rg1 12.Bc4 Rg5+ 13.Kb4 Re5 14.Rg8 Re6 15.Bd3 Re8 16.Rxe8 Kg5 17.Rg8+ Kf4 18.Qg4+ Ke5 19.Qg5+ f5 20.Qxf5+ Kd4
+- (61.70) Depth: 27/38 00:00:22 200mN
1.f6
+- (152.65 ++) Depth: 28/32 00:00:23 204mN
1.f6 Kg8
+- (21.17 --) Depth: 28/41 00:00:23 205mN
1.f6
+- (152.65 ++) Depth: 28/41 00:00:23 205mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Bxc8 7.Rxc8 Kxf6 8.Rxc5 c3 9.Rxc3 Kg7 10.Kd2 Kf8 11.Rc8+ Kg7 12.Ke3 Kh7 13.Kd4 f5 14.a4 f4 15.Ra8 f3
+- (152.65) Depth: 28/41 00:00:23 205mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Bxc8 7.Rxc8 c3 8.Rxc5 a5 9.Rxc3 Kf5 10.Rc5+ Ke4 11.Kd2 Kd4 12.Rxa5 Kc4 13.Ra7 Kd4 14.Kc2 Kc4 15.Rxf7 Kd4 16.a4
+- (56.01) Depth: 29/31 00:00:23 205mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bb7 5.Kxe1 a5 6.Rb8 Ba6 7.Rb6 Bc8 8.Bxc8 Kg6 9.Ba6 Kg5 10.Kd2 Kg6 11.Bxc4 Kh6 12.Kc3 Kg6 13.Rb8 Kxf6 14.Rd8 Kg5 15.c8Q Kh6 16.Rh8+ Kg5
+- (#43) Depth: 30/33 00:00:24 217mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 c4 8.Rxc4 Kg6 9.Rc5 a5 10.Rxc3 Kxf6 11.Ra3 Kg5 12.Rxa5+ Kh4 13.Ra4+ Kg3 14.Ra6 Kg2 15.Kd2 f5 16.Rf6 Kf3 17.Rxf5+ Ke4 18.Rf8
+- (#35) Depth: 31/41 00:00:26 230mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 c4 8.Rxc4 Kg6 9.Rc5 a5 10.Rxc3 Kxf6 11.Ra3 Kg5 12.Rxa5+ Kf4 13.Kd2 Ke4 14.Ra6 f5 15.Rf6 Kd5 16.Rxf5+ Ke4 17.Rf8 Kd5
+- (#34) Depth: 32/34 00:00:27 235mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 c4 8.Rxc4 Kg6 9.Rc5 a5 10.Rxc3 Kxf6 11.Ra3 Kg5 12.Rxa5+ Kf4 13.Kd2 Ke4 14.Ra6 f5 15.Rf6 Kd5 16.Rxf5+ Ke4 17.Rf8 Kd5 18.Kc3
+- (#33) Depth: 33/37 00:00:27 237mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 c4 8.Rxc4 Kg6 9.Rc5 a5 10.Rxc3 Kxf6 11.Ra3 Kg5 12.Rxa5+ Kf4 13.Kd2 Ke4 14.Ra6 f5 15.Rf6 Kd5 16.Rxf5+ Ke4 17.Rf8 Kd5 18.Kc3 Ke4 19.a4
+- (#33) Depth: 34/38 00:00:27 240mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 a5 9.Rxc3 Kxf6 10.Ra3 Ke6 11.Rxa5 f5 12.Ra6+ Kd5 13.Kd2 Kc4 14.Ra8 Kb4 15.Ke3 Kb5 16.Rf8 Kc5 17.Rf6 Kd5 18.Rxf5+ Kc4 19.a4
+- (#32) Depth: 35/42 00:00:28 246mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 a5 9.Rxc3 Kxf6 10.Kd2 Ke6 11.Rc4 Kd5 12.Ra4 Kc6 13.Rxa5 Kb6 14.Rf5 f6 15.Rxf6+ Kc7 16.Rf7+ Kd6 17.a4 Kd5 18.Rf5+ Ke4 19.Rf1
+- (#33) Depth: 36/39 00:00:28 250mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Ra3 f5 11.Kd2 f4 12.Rxa6 f3 13.Ra8 Kd5 14.Rf8 Kd6 15.Rxf3 Kc5 16.Kc3 Kd5 17.Rf5+ Ke4 18.Ra5 Kf4 19.Kd4 Kg3
+- (#31) Depth: 37/40 00:00:29 258mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Kd2 f5 11.Ra3 f4 12.Rxa6 f3 13.Ra8 Kd6 14.Rf8 Kc7 15.Rxf3 Kb8 16.Rf8+ Kb7 17.Rf7+ Kb6 18.Kc3 Ka6 19.Rf6+ Kb5 20.a4+ Kc5 21.a5
+- (#31) Depth: 38/41 00:00:29 258mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Kd2 f5 11.Ra3 f4 12.Rxa6 f3 13.Ra8 Kd6 14.Rf8 Kc7 15.Rxf3 Kb8 16.Rf8+ Kb7 17.Rf7+ Kb6 18.Kc3 Ka6 19.Rf6+ Kb5 20.a4+ Kc5 21.a5
+- (#31) Depth: 39/41 00:00:30 262mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Ra3 f5 11.Kd2 f4 12.Rxa6 f3 13.Ke3 Kd5 14.Ra5+ Kc4 15.Rf5 f2 16.Rxf2 Kb4 17.Rf4+ Kc5 18.a4 Kd5 19.a5 Kc5 20.Rf5+ Kd6 21.Kd4 Ke6 22.Rc5 Kd7 23.a6
+- (#29) Depth: 40/46 00:00:36 349mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Bxc8 7.Rxc8 Kxf6 8.Rxc5 c3 9.Rxc3 Ke5 10.Kd2 f5 11.Ra3 f4 12.Rxa6 f3 13.Ke3 f2 14.Ra5+ Kd6 15.Kxf2 Kc7 16.Ke3 Kb6 17.Rf5 Kc7 18.Kd4 Kd6 19.a4 Ke6 20.Rc5 Kf6 21.Rc6+ Kf5 22.a5
+- (#29) Depth: 41/43 00:00:40 411mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc4 Ba6+ 15.Kc5 Bc8 16.Kb6 Bf5 17.Kxa5 Kg8 18.Rxe8+ Kh7 19.Kb6 Kg6 20.a5 Kxf6 21.a6 Bd3 22.c8Q Kg5 23.Qc3 Bf5 24.a7 Bd3
+- (#30) Depth: 42/51 00:00:52 627mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb6 Kg8 16.Rxe8+ Kh7 17.Kxa5 Bh3 18.Kb6 Kg6 19.a5 Kxf6 20.a6 Kg5 21.a7 Kf4 22.a8Q Kg3 23.Qe4 Kh2 24.Qe3 Be6 25.Rh8+ Kg2
+- (#29) Depth: 43/50 00:00:53 641mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc4 Ba6+ 15.Kc5 Bc8 16.Kb6 Bf5 17.Kxa5 Kg8 18.Rxe8+ Kh7 19.Kb6 Kg6 20.a5 Kxf6 21.a6 Kg6 22.a7 Kh5 23.a8Q Bh7 24.c8Q f5 25.Qh1+ Kg5
+- (#30) Depth: 44/50 00:00:54 659mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3
+- (#30) Depth: 45/52 00:00:54 659mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3
+- (#30) Depth: 46/52 00:00:54 659mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q
+- (#29) Depth: 47/53 00:00:54 665mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2
+- (#29) Depth: 48/55 00:00:55 673mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3
+- (#29) Depth: 49/56 00:00:55 679mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 50/57 00:00:55 684mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 51/58 00:00:56 689mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 52/58 00:00:56 693mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 53/58 00:00:56 697mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 54/58 00:00:56 701mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 55/58 00:00:57 711mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 56/58 00:00:57 715mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 57/58 00:00:59 736mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 58/58 00:00:59 745mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 59/58 00:01:03 789mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 60/58 00:01:03 789mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 61/58 00:01:04 792mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 62/58 00:01:04 795mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 63/58 00:01:06 811mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 64/58 00:01:11 856mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb6 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 65/58 00:01:12 870mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb6 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 66/58 00:01:16 906mN
Analysis by Stockfish 15:
...
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Ra1 5.Bxc8 Rxa2+ 6.Kc3 Kh6 7.Bxa6 Rxa6 8.c8Q Rxf6 9.Rh8+ Kg5 10.Qxc5+ Kf4 11.Qxc4+ Kg5 12.Rg8+ Rg6 13.Rxg6+ fxg6 14.Qd5+ Kh6
+- (13.07) Depth: 16/30 00:00:01 9466kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Re5 5.Bxc8 Kg6 6.Bxa6 Kf5 7.c8Q+ Kf4 8.Rg8 Rd5+ 9.Kc3 Rd3+ 10.Kxc4 Rd1 11.Qg4+ Ke5 12.Rg5+ Kd6 13.Qxd1+ Ke6 14.Kxc5
+- (13.86) Depth: 17/31 00:00:01 17087kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 a5 5.Kxe1 Ba6 6.Bc8 Bxc8 7.Rxc8 c3 8.Rd8 Kg6 9.c8Q c2 10.Qxc5 Kxf6 11.Qxc2
+- (13.65) Depth: 18/36 00:00:03 33084kN
1.f6
+- (16.28 ++) Depth: 19/26 00:00:04 40992kN
1.f6
+- (18.50 ++) Depth: 19/27 00:00:05 51540kN
1.f6
+- (21.29 ++) Depth: 19/38 00:00:09 80742kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Re4 5.Bxc8 Rd4+ 6.Kc2 Rf4 7.Bxa6 Re4 8.c8Q Kg6 9.Rg8+ Kxf6 10.Kd2 Rd4+ 11.Kc3 Rd3+ 12.Kxc4 Rd4+ 13.Kxc5
+- (21.30) Depth: 19/38 00:00:09 83610kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Re4 5.Bxc8 Rd4+ 6.Kc2 Rf4 7.Bxa6 Rf2+ 8.Kc3 Rf3+ 9.Kxc4 Rxf6 10.c8Q Re6 11.Kc3 Kh6 12.Rh8+ Kg5 13.Qxc5+ f5 14.Rg8+ Rg6 15.Qg1+ Kf6 16.Qxg6+ Ke5
+- (22.41) Depth: 20/33 00:00:11 99330kN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Re4 5.Bxc8 Rd4+ 6.Kc2 Rxd8 7.cxd8Q a5 8.Qxa5 Kh6 9.Qxc5 Kg6 10.Bf5+ Kxf6 11.Qxc4 Ke7 12.Qc5+ Kf6 13.Kd2
+- (26.77) Depth: 21/29 00:00:15 133mN
1.f6
+- (32.09 ++) Depth: 22/31 00:00:17 161mN
1.f6
+- (39.02 ++) Depth: 22/31 00:00:18 168mN
1.f6
+- (54.02 ++) Depth: 22/31 00:00:18 171mN
1.f6 Kg8
+- (18.05 --) Depth: 22/31 00:00:19 171mN
1.f6
+- (41.54 ++) Depth: 22/31 00:00:19 171mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Bxc8 7.Rxc8 c3 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Ra3 Ke4 11.Rxa6 Kd3 12.Rf6 Kc3 13.Rxf7 Kd3
+- (12.41) Depth: 22/31 00:00:19 172mN
1.f6
+- (25.31 ++) Depth: 23/28 00:00:19 172mN
1.f6
+- (30.00 ++) Depth: 23/29 00:00:19 172mN
1.f6
+- (36.58 ++) Depth: 23/29 00:00:19 172mN
1.f6
+- (54.02 ++) Depth: 23/29 00:00:19 172mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Kxf6 7.Qxh3 a5 8.Kd2 a4 9.Rg8 Ke7 10.Qc3 Kd6 11.Qxc4
+- (54.62) Depth: 23/29 00:00:19 172mN
1.f6 Kg8
+- (20.59 --) Depth: 24/25 00:00:19 172mN
1.f6
+- (54.02 ++) Depth: 24/31 00:00:19 173mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.Rh8 Bd7 7.c8Q Bb5 8.Qg4+ Kxf6 9.Qf4+ Ke7 10.Qe5+ Kd7 11.Rh7 c3 12.Rxf7+ Kc6
+- (12.66) Depth: 24/31 00:00:19 175mN
1.f6
+- (54.02 ++) Depth: 25/30 00:00:19 175mN
1.f6 Kg8
+- (17.62 --) Depth: 25/30 00:00:19 175mN
1.f6
+- (54.02 ++) Depth: 25/30 00:00:19 175mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Bd7 4.Bxd7 Rxd8 5.cxd8Q Kg6 6.Kd2 c3+ 7.Kxc3 Kg5 8.Qe7 Kg6 9.Bf5+ Kg5 10.Qxf7 Kf4 11.Qc7+ Kg5 12.Qxc5 Kxf6 13.Qb6+ Kf7
+- (54.62) Depth: 25/32 00:00:19 176mN
1.f6 Kg8
+- (22.20 --) Depth: 26/35 00:00:20 180mN
1.f6
+- (54.62 ++) Depth: 26/35 00:00:20 180mN
1.f6 c3 2.c7 Bb7 3.Rd8 c2 4.Kxc2 a5 5.Bd7 Kg8 6.Bf5 Kf8 7.Kc3 c4 8.Bd7 Kg8 9.Bxe8 Kh7 10.Bxf7 Kh6 11.Bxc4 Bf3 12.Rg8 Kh5 13.Rh8+ Kg6
+- (54.95) Depth: 26/35 00:00:20 181mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Ra1 5.Bxc8 Kg6 6.Bb7 Rxa2+ 7.Kc3 Ra3+ 8.Kxc4 Ra4+ 9.Kxc5 Ra1 10.Bxa6 Kxf6 11.c8Q Rg1 12.Bc4 Rg5+ 13.Kb4 Re5 14.Rg8 Re6 15.Bd3 Re8 16.Rxe8 Kg5 17.Rg8+ Kf4 18.Qg4+ Ke5 19.Qg5+ f5 20.Qxf5+ Kd4
+- (61.70) Depth: 27/38 00:00:22 200mN
1.f6
+- (152.65 ++) Depth: 28/32 00:00:23 204mN
1.f6 Kg8
+- (21.17 --) Depth: 28/41 00:00:23 205mN
1.f6
+- (152.65 ++) Depth: 28/41 00:00:23 205mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Bxc8 7.Rxc8 Kxf6 8.Rxc5 c3 9.Rxc3 Kg7 10.Kd2 Kf8 11.Rc8+ Kg7 12.Ke3 Kh7 13.Kd4 f5 14.a4 f4 15.Ra8 f3
+- (152.65) Depth: 28/41 00:00:23 205mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Bxc8 7.Rxc8 c3 8.Rxc5 a5 9.Rxc3 Kf5 10.Rc5+ Ke4 11.Kd2 Kd4 12.Rxa5 Kc4 13.Ra7 Kd4 14.Kc2 Kc4 15.Rxf7 Kd4 16.a4
+- (56.01) Depth: 29/31 00:00:23 205mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bb7 5.Kxe1 a5 6.Rb8 Ba6 7.Rb6 Bc8 8.Bxc8 Kg6 9.Ba6 Kg5 10.Kd2 Kg6 11.Bxc4 Kh6 12.Kc3 Kg6 13.Rb8 Kxf6 14.Rd8 Kg5 15.c8Q Kh6 16.Rh8+ Kg5
+- (#43) Depth: 30/33 00:00:24 217mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 c4 8.Rxc4 Kg6 9.Rc5 a5 10.Rxc3 Kxf6 11.Ra3 Kg5 12.Rxa5+ Kh4 13.Ra4+ Kg3 14.Ra6 Kg2 15.Kd2 f5 16.Rf6 Kf3 17.Rxf5+ Ke4 18.Rf8
+- (#35) Depth: 31/41 00:00:26 230mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 c4 8.Rxc4 Kg6 9.Rc5 a5 10.Rxc3 Kxf6 11.Ra3 Kg5 12.Rxa5+ Kf4 13.Kd2 Ke4 14.Ra6 f5 15.Rf6 Kd5 16.Rxf5+ Ke4 17.Rf8 Kd5
+- (#34) Depth: 32/34 00:00:27 235mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 c4 8.Rxc4 Kg6 9.Rc5 a5 10.Rxc3 Kxf6 11.Ra3 Kg5 12.Rxa5+ Kf4 13.Kd2 Ke4 14.Ra6 f5 15.Rf6 Kd5 16.Rxf5+ Ke4 17.Rf8 Kd5 18.Kc3
+- (#33) Depth: 33/37 00:00:27 237mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 c4 8.Rxc4 Kg6 9.Rc5 a5 10.Rxc3 Kxf6 11.Ra3 Kg5 12.Rxa5+ Kf4 13.Kd2 Ke4 14.Ra6 f5 15.Rf6 Kd5 16.Rxf5+ Ke4 17.Rf8 Kd5 18.Kc3 Ke4 19.a4
+- (#33) Depth: 34/38 00:00:27 240mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 a5 9.Rxc3 Kxf6 10.Ra3 Ke6 11.Rxa5 f5 12.Ra6+ Kd5 13.Kd2 Kc4 14.Ra8 Kb4 15.Ke3 Kb5 16.Rf8 Kc5 17.Rf6 Kd5 18.Rxf5+ Kc4 19.a4
+- (#32) Depth: 35/42 00:00:28 246mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 a5 9.Rxc3 Kxf6 10.Kd2 Ke6 11.Rc4 Kd5 12.Ra4 Kc6 13.Rxa5 Kb6 14.Rf5 f6 15.Rxf6+ Kc7 16.Rf7+ Kd6 17.a4 Kd5 18.Rf5+ Ke4 19.Rf1
+- (#33) Depth: 36/39 00:00:28 250mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Ra3 f5 11.Kd2 f4 12.Rxa6 f3 13.Ra8 Kd5 14.Rf8 Kd6 15.Rxf3 Kc5 16.Kc3 Kd5 17.Rf5+ Ke4 18.Ra5 Kf4 19.Kd4 Kg3
+- (#31) Depth: 37/40 00:00:29 258mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Kd2 f5 11.Ra3 f4 12.Rxa6 f3 13.Ra8 Kd6 14.Rf8 Kc7 15.Rxf3 Kb8 16.Rf8+ Kb7 17.Rf7+ Kb6 18.Kc3 Ka6 19.Rf6+ Kb5 20.a4+ Kc5 21.a5
+- (#31) Depth: 38/41 00:00:29 258mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Kd2 f5 11.Ra3 f4 12.Rxa6 f3 13.Ra8 Kd6 14.Rf8 Kc7 15.Rxf3 Kb8 16.Rf8+ Kb7 17.Rf7+ Kb6 18.Kc3 Ka6 19.Rf6+ Kb5 20.a4+ Kc5 21.a5
+- (#31) Depth: 39/41 00:00:30 262mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 c3 6.c8Q Bxc8 7.Rxc8 Kg6 8.Rxc5 Kxf6 9.Rxc3 Ke5 10.Ra3 f5 11.Kd2 f4 12.Rxa6 f3 13.Ke3 Kd5 14.Ra5+ Kc4 15.Rf5 f2 16.Rxf2 Kb4 17.Rf4+ Kc5 18.a4 Kd5 19.a5 Kc5 20.Rf5+ Kd6 21.Kd4 Ke6 22.Rc5 Kd7 23.a6
+- (#29) Depth: 40/46 00:00:36 349mN
1.f6 Kg8 2.c7 Kh7 3.Rd8 Re1+ 4.Kd2 Bxh3 5.Kxe1 Kg6 6.c8Q Bxc8 7.Rxc8 Kxf6 8.Rxc5 c3 9.Rxc3 Ke5 10.Kd2 f5 11.Ra3 f4 12.Rxa6 f3 13.Ke3 f2 14.Ra5+ Kd6 15.Kxf2 Kc7 16.Ke3 Kb6 17.Rf5 Kc7 18.Kd4 Kd6 19.a4 Ke6 20.Rc5 Kf6 21.Rc6+ Kf5 22.a5
+- (#29) Depth: 41/43 00:00:40 411mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc4 Ba6+ 15.Kc5 Bc8 16.Kb6 Bf5 17.Kxa5 Kg8 18.Rxe8+ Kh7 19.Kb6 Kg6 20.a5 Kxf6 21.a6 Bd3 22.c8Q Kg5 23.Qc3 Bf5 24.a7 Bd3
+- (#30) Depth: 42/51 00:00:52 627mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb6 Kg8 16.Rxe8+ Kh7 17.Kxa5 Bh3 18.Kb6 Kg6 19.a5 Kxf6 20.a6 Kg5 21.a7 Kf4 22.a8Q Kg3 23.Qe4 Kh2 24.Qe3 Be6 25.Rh8+ Kg2
+- (#29) Depth: 43/50 00:00:53 641mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc4 Ba6+ 15.Kc5 Bc8 16.Kb6 Bf5 17.Kxa5 Kg8 18.Rxe8+ Kh7 19.Kb6 Kg6 20.a5 Kxf6 21.a6 Kg6 22.a7 Kh5 23.a8Q Bh7 24.c8Q f5 25.Qh1+ Kg5
+- (#30) Depth: 44/50 00:00:54 659mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3
+- (#30) Depth: 45/52 00:00:54 659mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3
+- (#30) Depth: 46/52 00:00:54 659mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q
+- (#29) Depth: 47/53 00:00:54 665mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2
+- (#29) Depth: 48/55 00:00:55 673mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3
+- (#29) Depth: 49/56 00:00:55 679mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 50/57 00:00:55 684mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 51/58 00:00:56 689mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 52/58 00:00:56 693mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 53/58 00:00:56 697mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 54/58 00:00:56 701mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 55/58 00:00:57 711mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 56/58 00:00:57 715mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 57/58 00:00:59 736mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 58/58 00:00:59 745mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe7+ Kd3 26.f7 Kc3 27.f8Q Kb3 28.Qe2 Kc3 29.Qb4#
+- (#29) Depth: 59/58 00:01:03 789mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 60/58 00:01:03 789mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 61/58 00:01:04 792mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 62/58 00:01:04 795mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 63/58 00:01:06 811mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb5 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 64/58 00:01:11 856mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb6 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 65/58 00:01:12 870mN
1.f6 Bxh3 2.c7 c3 3.Rd8 Bf5 4.Kd1 c2+ 5.Kc1 c4 6.a4 a5 7.Kd2 c1Q+ 8.Kxc1 c3 9.Kd1 c2+ 10.Kc1 Bc8 11.Kxc2 Bb7 12.Kc3 Ba6 13.Kd4 Bc8 14.Kc5 Bg4 15.Kb6 Kg8 16.Rxe8+ Kh7 17.Kxa5 Kg6 18.Rg8+ Kh5 19.Rxg4 Kxg4 20.c8Q+ Kg5 21.Qc3 Kf5 22.Kb5 Kf4 23.Qc4+ Ke3 24.Qxf7 Ke2 25.Qe6+ Kd1 26.f7 Kc1 27.f8Q Kd2 28.Qf2+ Kc3 29.Qc4#
+- (#29) Depth: 66/58 00:01:16 906mN
Jouni
-
Sopel
- Posts: 389
- Joined: Tue Oct 08, 2019 11:39 pm
- Full name: Tomasz Sobczyk
Re: Stockfish Development Version: Finds Mate Much Quicker...
You will always be able to find positions that a newer version does better at and positions where it does worse. It's impossible to improve on all positions. What matters is an average performance (which in itself is also orthogonal to puzzle solving).
dangi12012 wrote:No one wants to touch anything you have posted. That proves you now have negative reputations since everyone knows already you are a forum troll.
Maybe you copied your stockfish commits from someone else too?
I will look into that.
-
Dariusz
- Posts: 364
- Joined: Sat Jun 13, 2015 10:08 am
- Location: Poland
- Full name: Dariusz Domagała
Re: Stockfish Development Version: Finds Mate Much Quicker...
Steve Maughan wrote: ↑Mon May 16, 2022 2:57 pm [fen]1r4r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - -[/fen]
This position is an old chestnut dating back to ~2007. In those days Ruffian was amazingly fast at finding Qxg6+, which is mate in 15. Over the years I've tested many engines using the position. Critter is one of the fastest at solving (~5 seconds). But Stockfish has always had problems. Even Stockfish 15 takes 3 min 30 sec to find the key move (1 thread, i9). The development version has made some changes to the singularity extensions so I decided to see if it made a difference in this position — and it did! Stockfish 22051520, with one thread and 4Gb of hash find Qxg6 in 30 seconds — a nice speedup!
Steve
Steve, indeed, a very interesting and not easy position for chess engines.
Hiarcs 15.1, 1 CPU, 128MB hash, MacBook Pro M1 found the winning move at 47 seconds, while the mate was spotted after 97 seconds.
1:44/23-54, 1/44: 1.Qxg6+, 133,4M nodes (1,2M nps), 128MB hash
0:00: -1.82/14 1.h5 Ng5
0:00: -1.99/14 1.h5
0:00: -1.85/14 1.h5
0:00: -1.77/14 1.h5
0:00: -1.80/14 1.h5 Ng5 2.Qxg6+ Kh8 3.Be3 Ne4 4.Bd3 Ra8 5.Raa1 Rxa1 6.Rxa1 Qc8 7.Ra3 Rf8 8.Nxc6 Qxc6 9.Rb3 Kg8 10.Bxb5 Qc8 11.g4 f2 12.Bd3 e5
0:00: -1.89/15 1.h5
0:00: -1.80/15 1.h5
0:00: -1.75/15 1.h5 Ng5 2.Qxg6+ Kh8 3.Be3 Ne4 4.Bd3 Ra8 5.Raa1 Rxa1 6.Rxa1 Qc8 7.Rc1 Rd8 8.Qg4 Bg5 9.Qxf3 Rf8 10.Qe2 Nxg3 11.Qe1
0:00: -1.67/16 1.h5
0:00: -1.84/16 1.h5
0:01: -1.92/16 1.h5
0:01: -1.84/16 1.h5
0:01: -1.84/16 1.h5 Ng5 2.Qxg6+ Kh8 3.Be3 Ne4 4.Bd3 Ra8 5.Raa1 Rxa1 6.Rxa1 Rc8 7.Bxh6 Qe8 8.Be3 Qxg6 9.hxg6 Bd7 10.Bxe4 dxe4 11.Ra7 Be8 12.Ra6 e5
0:01: -1.75/17 1.h5
0:01: -1.67/17 1.h5
0:02: -1.92/17 1.h5
0:02: -2.01/17 1.h5
0:03: -2.18/17 1.h5
0:04: -2.36/17 1.h5 Kh8 2.Qxg6 Qc7 3.Ra2 Ra8 4.Be3 Rxa2+ 5.Nxa2 Be8 6.Qg4 Rf8 7.Qxe6 Qxg3 8.Rh3 Qd6 9.Qxd6 Nxd6 10.Rxf3 Bxh5 11.Rf2 Bf7 12.Nb4 h5 13.Bf4 Nc4+ 14.Kb3 Ra8 15.Bd3 h4
0:05: -2.45/18 1.h5
0:06: -2.36/18 1.h5
0:06: -2.28/18 1.h5
0:07: -2.10/18 1.h5
0:07: -2.35/18 1.h5 Kh8 2.Qxg6 Qc7 3.Ra6 Be8 4.Rxe6 Ng5 5.Rxe8 Rgxe8 6.Bd3 Ra8 7.Ra1 Rac8 8.Rc1 Qb7 9.Qf5 Ra8 10.Qxd5 Qa7 11.Nc2 Be7 12.Bxb5
0:08: -2.26/19 1.h5
0:08: -2.17/19 1.h5
0:08: -2.43/19 1.h5
0:10: -2.52/19 1.h5
0:11: -2.54/19 1.h5 Kh8 2.Qxg6 Qc7 3.Ra6 Be8 4.Qd3 Ng5 5.Be3 Qxg3 6.Bxg5 Bxg5 7.Rxe6 Bf7 8.Ra6 Rgf8 9.Ra7 Qf2+ 10.Qc2 Qxc2+ 11.Kxc2 Be6 12.Nc6 Ra8 13.Rxa8 Bf5+ 14.Kb2 Rxa8 15.Bxb5 f2
0:12: -2.46/20 1.h5
0:12: -2.37/20 1.h5
0:14: -2.63/20 1.h5
0:17: -2.54/20 1.h5
0:17: -2.46/20 1.h5
0:18: -2.28/20 1.h5
0:18: -2.24/20 1.h5 Kh8 2.Qxg6 Qc7 3.Ra6 Be8 4.Qd3 Ng5 5.Be3 Qxg3 6.Bxg5 Bxg5 7.Be2 Rf8 8.Bd1 Bd7 9.Bc2 Rf5 10.Qd1 Qg2 11.Rg1 Qf2 12.Rh1 Rd8 13.Nc6 Bxc6 14.Rxc6 Rf4 15.Rxe6 b4 16.cxb4
0:20: -2.32/21 1.h5
0:20: -2.41/21 1.h5
0:23: -2.58/21 1.h5
0:28: -2.92/21 1.h5
0:35: -2.68/21 1.h5
0:35: -2.60/21 1.h5
0:43: -2.42/21 1.h5
0:44: -2.60/21 1.h5 Kh8 2.Qxg6 Qc7 3.Ra3 Ng5 4.Be3 Be8 5.Qc2 Qxg3 6.Bf2 Qd6 7.Ra6 Qd8 8.Be3 Ra8 9.Rxa8 Qxa8 10.Bxg5 Bxg5 11.Bh3 Bd7 12.Bg4 Rf8 13.Rf1 Qa7 14.Bxf3 Qa4 15.Qb3 Qxb3+ 16.Kxb3 Rb8 17.Na6 Ra8 18.Ra1
0:46: -2.68/22 1.h5
0:47: -2.67/22 1.Qxg6+
0:47: -2.59/22 1.Qxg6+
0:47: -2.42/22 1.Qxg6+
0:48: -2.07/22 1.Qxg6+
0:48: -1.39/22 1.Qxg6+
0:48: -0.01/22 1.Qxg6+
0:48: +2.73/22 1.Qxg6+
0:48: +8.23/22 1.Qxg6+
0:48: +19.23/22 1.Qxg6+
0:49: +41.23/22 1.Qxg6+
1:37: #15/22 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rd1 Ra1 9.Rxa1 Ra8 10.Rb1 Ra1 11.Rxa1 Qa7 12.Rb1 Qa2+ 13.Kxa2 f2 14.Bh3+ f1=Q 15.Rxf1#
Regards, Darius
https://chessengeria.eu
https://chessengeria.eu
-
adnoh
- Posts: 72
- Joined: Tue Jun 26, 2007 6:31 am
- Full name: Charles Wong
Re: Stockfish Development Version: Finds Mate Much Quicker...
I just tried the position using Rebel 15x2 as Ed specifically says the double sized net is good for analysis and on 1 thread with my i7-12700K with 256MB hash it found Qxg6+ in 14 seconds and +M16 in 22.
Engine: Rebel 15x2 (256 MB)
by Fabien Letouzey, Thomas Gaksch, Jerry D
14/39 0:01 -2.72-- 1.h5 Nd6 2.hxg6+ Kh8 3.Qe3 Rgc8 4.Na6 Kg8 5.Nxb8 Rxb8 6.Bd3 b4 7.Qc1 (1.424.799) 907
14/39 0:01 -2.75 1.h5 Nd6 2.hxg6+ Kh8 3.Qe3 Rgc8 4.Na6 Kg8 5.Bd3 b4 6.cxb4 Ne4 7.Nxb8 Rxb8 8.Kb3 Bg5 9.Qe1 Nd2+ 10.Kb2 Rxb4+ 11.Kc2 (1.650.502) 907
15/39 0:02 -3.00-- 1.h5 Kh8 2.hxg6 Nd6 3.Qe3 Rgc8 4.Na6 Kg8 5.Bd3 b4 6.cxb4 Ne4 7.Nxb8 Rxb8 8.Kb3 Bg5 9.Bf1 (2.304.258) 905
15/40 0:04 -3.02 1.h5 Nd6 2.Qxg6+ Kh8 3.Bd3 Ne4 4.Be3 Rbc8 5.Rha1 Bb7 6.R1a3 Rgf8 7.Ra7 Bg5 8.Bxg5 Nxg5 (3.643.184) 910
16/44 0:05 -2.90 1.h5 Nd6 2.Qxg6+ Kh8 3.Bd3 Ne4 4.Be3 Rbc8 5.Rha1 Bb7 6.R1a3 Rgf8 7.Rxb5 Bc6 8.Rb6 Be7 (5.017.371) 914
17/44 0:06 -3.06-- 1.h5 Nd6 2.Qxg6+ Kh8 3.Bd3 Ne4 4.Be3 Rbc8 5.Rha1 Bb7 6.R1a3 Rgf8 7.Rxb5 Bc6 8.Rb6 Bg5 9.Nxc6 Rxc6 10.Qxh6+ gxh6 (6.002.971) 916
17/44 0:08 -3.19 1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Ne4 4.Be3 Rgc8 5.Bxh6 gxh6 6.Rxh6+ Kg8 7.Rh7 Bg7 8.Qxf3 Bb7 9.Ra3 Qe7 10.Qh5 Rxc3 (8.095.406) 917
18/44 0:10 -2.94++ 1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Ne4 4.Be3 Rgc8 5.Bxh6 gxh6 6.Rxh6+ Kg8 7.Rh7 Bg7 8.Qxf3 Rf8 9.Qh5 Bb7 (9.368.079) 925
19/51 0:12 -3.10-- 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Rgf8 4.Na6 Ra8 5.Bxg5 Bxg5 6.Nc5 Qe7 7.Rxa8 Rxa8 8.Kb3 f2 9.Qc2 Rf8 10.Qxf2 (11.556.007) 920
19/51 0:14 -2.78++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 Ba8 (13.799.939) 923
19/51 0:15 -2.62++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 f2 9.Nxc6 Qa7 10.Nxa7 Bg5 11.hxg5 Rad8 12.gxh6 Ng5 13.hxg7 Rxg7 14.Bxb5+ (14.134.770) 925
19/51 0:15 -2.37++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Ne5 10.dxe5 b4 11.exf6 bxc3+ 12.Kxc3 f2 13.Bh3+ f1Q 14.Bxf1 (14.445.816) 925
19/51 0:15 -2.01++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Ne5 10.dxe5 Bb7 11.exf6 e5 12.Bxe5 f2 13.Bh3+ f1Q 14.Bxf1 (14.748.591) 925
19/51 0:16 -1.51++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Be5 10.dxe5 Qd6 11.exd6 g5 (15.110.262) 933
19/51 0:16 -0.84++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 Re8 11.gxh6 f2 12.hxg7 Nh8 13.gxh8Q Rxh8 (15.529.976) 933
19/51 0:17 +0.04++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 Ba8 11.gxh6 Rb8 12.Bxb8 f2 13.hxg7 (16.096.546) 941
19/51 0:17 +1.19++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 e5 11.dxe5 f2 12.gxh6 Ra8 13.Bh3+ f1B (16.652.233) 941
19/51 0:18 +2.67++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Bg5 9.hxg5 Ra1 10.Rxa1 Ra8 11.Rc1 Qc7 12.Bxc7 Ra5 (17.293.099) 947
19/51 0:18 +4.57++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bxd4 10.cxd4 Ng5 11.hxg5 Qc7 12.Bxc7 Rc8 13.Bh3+ Kf2 14.Rf1+ (17.823.143) 947
19/51 0:19 +6.99++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Be5 10.dxe5 b4 11.cxb4 Qd6 12.exd6 Ng5 13.hxg5 (18.497.527) 952
19/53 0:20 +10.06++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Ne5 10.dxe5 b4 11.exf6 Qe7 12.fxe7 Kh1 (19.261.182) 956
19/53 0:20 +13.94++ 1.Qxg6+ Kh8 2.Bd3 Ra8 (19.561.189) 956
19/53 0:20 +18.86++ 1.Qxg6+ Kh8 2.Bd3 Ng5 3.hxg5 Bxd4 4.cxd4 Rb6 5.Nxc6 (19.590.610) 956
19/53 0:20 +25.08++ 1.Qxg6+ Kh8 2.Bd3 Rb7 3.Nxc6 Ng5 4.hxg5 Ra8 5.Rxa8+ Rb8 6.Rxb8+ Qc8 7.Rxc8+ Bd8 8.Nxd8 e5 9.gxh6 exd4 10.cxd4 (19.600.711) 956
19/53 0:20 +(-871)++19.605.314 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 Kh1 (19.605.314) 956
19/53 0:22 +M16 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Bg5 9.hxg5 Ra1 10.Rxa1 Ra8 11.Rc1 Ra1 12.Kxa1 Qa7+ 13.Kb2 Qa3+ 14.Kxa3 (22.045.426) 959
20/53 0:28 +M16 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Bg5 9.hxg5 Ra1 10.Rxa1 Ra8 11.Rc1 Ra1 12.Kxa1 Qa7+ 13.Kb2 Qa3+ 14.Kxa3 (27.778.852) 962
best move: Qd3xg6 time: 0:38.532 min n/s: 966.494 CPU 100.0% n/s(1CPU): 966.494 nodes: 37.210.000
Ruffian 2.1.0 found +M15 in 48 seconds
Engine: Ruffian 2.1.0 (256 MB)
by Perola Valfridsson
10/27 0:00 -2.41 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Rgf8 4.Nxc6 Qxc6 5.Bf4 Ra8 6.Rxa8 Rxa8 7.Bxg5 Bxg5 8.Qxf3 Kg8 (4.341.427) 6679
11/29 0:01 -2.37 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Rgf8 4.Nxc6 Qxc6 5.Bf4 Ra8 6.Rxa8 Qxa8 7.Qxb5 Ne4 (12.699.306) 7016
12/30 0:04 -2.72-- 1.h5 (31.868.770) 6898
12/30 0:11 -3.03 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Ra8 4.Rxa8 Rxa8 5.Bxg5 Bxg5 6.Rh5 Qa7 7.Rxg5 Qa1+ 8.Kb3 Qa4+ 9.Kb2 hxg5 10.Nxc6 (75.203.971) 6416
13/34 0:34 -2.68++ 1.h5 (208.768.812) 6134
13/34 0:39 -2.53 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Rgf8 4.Bf4 Rbc8 5.Nxc6 Qxc6 6.Ra3 Be7 7.Ra7 Bf6 8.Kb3 (234.806.065) 5948
13/37 0:48 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (281.620.012) 5800
14/37 0:48 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (282.550.916) 5798
15/37 0:49 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (286.045.912) 5804
16/37 0:50 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (294.060.341) 5829
17/37 0:52 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (309.917.420) 5871
18/37 0:58 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (346.864.565) 5960
19/37 1:08 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (412.419.527) 6064
best move: Qd3xg6 time: 1:21.828 min n/s: 6.406.335 CPU 98.0% n/s(1CPU): 6.537.076 nodes: 524.230.408
Engine: Rebel 15x2 (256 MB)
by Fabien Letouzey, Thomas Gaksch, Jerry D
14/39 0:01 -2.72-- 1.h5 Nd6 2.hxg6+ Kh8 3.Qe3 Rgc8 4.Na6 Kg8 5.Nxb8 Rxb8 6.Bd3 b4 7.Qc1 (1.424.799) 907
14/39 0:01 -2.75 1.h5 Nd6 2.hxg6+ Kh8 3.Qe3 Rgc8 4.Na6 Kg8 5.Bd3 b4 6.cxb4 Ne4 7.Nxb8 Rxb8 8.Kb3 Bg5 9.Qe1 Nd2+ 10.Kb2 Rxb4+ 11.Kc2 (1.650.502) 907
15/39 0:02 -3.00-- 1.h5 Kh8 2.hxg6 Nd6 3.Qe3 Rgc8 4.Na6 Kg8 5.Bd3 b4 6.cxb4 Ne4 7.Nxb8 Rxb8 8.Kb3 Bg5 9.Bf1 (2.304.258) 905
15/40 0:04 -3.02 1.h5 Nd6 2.Qxg6+ Kh8 3.Bd3 Ne4 4.Be3 Rbc8 5.Rha1 Bb7 6.R1a3 Rgf8 7.Ra7 Bg5 8.Bxg5 Nxg5 (3.643.184) 910
16/44 0:05 -2.90 1.h5 Nd6 2.Qxg6+ Kh8 3.Bd3 Ne4 4.Be3 Rbc8 5.Rha1 Bb7 6.R1a3 Rgf8 7.Rxb5 Bc6 8.Rb6 Be7 (5.017.371) 914
17/44 0:06 -3.06-- 1.h5 Nd6 2.Qxg6+ Kh8 3.Bd3 Ne4 4.Be3 Rbc8 5.Rha1 Bb7 6.R1a3 Rgf8 7.Rxb5 Bc6 8.Rb6 Bg5 9.Nxc6 Rxc6 10.Qxh6+ gxh6 (6.002.971) 916
17/44 0:08 -3.19 1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Ne4 4.Be3 Rgc8 5.Bxh6 gxh6 6.Rxh6+ Kg8 7.Rh7 Bg7 8.Qxf3 Bb7 9.Ra3 Qe7 10.Qh5 Rxc3 (8.095.406) 917
18/44 0:10 -2.94++ 1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Ne4 4.Be3 Rgc8 5.Bxh6 gxh6 6.Rxh6+ Kg8 7.Rh7 Bg7 8.Qxf3 Rf8 9.Qh5 Bb7 (9.368.079) 925
19/51 0:12 -3.10-- 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Rgf8 4.Na6 Ra8 5.Bxg5 Bxg5 6.Nc5 Qe7 7.Rxa8 Rxa8 8.Kb3 f2 9.Qc2 Rf8 10.Qxf2 (11.556.007) 920
19/51 0:14 -2.78++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 Ba8 (13.799.939) 923
19/51 0:15 -2.62++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 f2 9.Nxc6 Qa7 10.Nxa7 Bg5 11.hxg5 Rad8 12.gxh6 Ng5 13.hxg7 Rxg7 14.Bxb5+ (14.134.770) 925
19/51 0:15 -2.37++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Ne5 10.dxe5 b4 11.exf6 bxc3+ 12.Kxc3 f2 13.Bh3+ f1Q 14.Bxf1 (14.445.816) 925
19/51 0:15 -2.01++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Ne5 10.dxe5 Bb7 11.exf6 e5 12.Bxe5 f2 13.Bh3+ f1Q 14.Bxf1 (14.748.591) 925
19/51 0:16 -1.51++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Be5 10.dxe5 Qd6 11.exd6 g5 (15.110.262) 933
19/51 0:16 -0.84++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 Re8 11.gxh6 f2 12.hxg7 Nh8 13.gxh8Q Rxh8 (15.529.976) 933
19/51 0:17 +0.04++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 Ba8 11.gxh6 Rb8 12.Bxb8 f2 13.hxg7 (16.096.546) 941
19/51 0:17 +1.19++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 e5 11.dxe5 f2 12.gxh6 Ra8 13.Bh3+ f1B (16.652.233) 941
19/51 0:18 +2.67++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Bg5 9.hxg5 Ra1 10.Rxa1 Ra8 11.Rc1 Qc7 12.Bxc7 Ra5 (17.293.099) 947
19/51 0:18 +4.57++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bxd4 10.cxd4 Ng5 11.hxg5 Qc7 12.Bxc7 Rc8 13.Bh3+ Kf2 14.Rf1+ (17.823.143) 947
19/51 0:19 +6.99++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Be5 10.dxe5 b4 11.cxb4 Qd6 12.exd6 Ng5 13.hxg5 (18.497.527) 952
19/53 0:20 +10.06++ 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Ne5 10.dxe5 b4 11.exf6 Qe7 12.fxe7 Kh1 (19.261.182) 956
19/53 0:20 +13.94++ 1.Qxg6+ Kh8 2.Bd3 Ra8 (19.561.189) 956
19/53 0:20 +18.86++ 1.Qxg6+ Kh8 2.Bd3 Ng5 3.hxg5 Bxd4 4.cxd4 Rb6 5.Nxc6 (19.590.610) 956
19/53 0:20 +25.08++ 1.Qxg6+ Kh8 2.Bd3 Rb7 3.Nxc6 Ng5 4.hxg5 Ra8 5.Rxa8+ Rb8 6.Rxb8+ Qc8 7.Rxc8+ Bd8 8.Nxd8 e5 9.gxh6 exd4 10.cxd4 (19.600.711) 956
19/53 0:20 +(-871)++19.605.314 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Ra2+ 9.Nxa2 Bg5 10.hxg5 Kh1 (19.605.314) 956
19/53 0:22 +M16 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Bg5 9.hxg5 Ra1 10.Rxa1 Ra8 11.Rc1 Ra1 12.Kxa1 Qa7+ 13.Kb2 Qa3+ 14.Kxa3 (22.045.426) 959
20/53 0:28 +M16 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rc1 Bg5 9.hxg5 Ra1 10.Rxa1 Ra8 11.Rc1 Ra1 12.Kxa1 Qa7+ 13.Kb2 Qa3+ 14.Kxa3 (27.778.852) 962
best move: Qd3xg6 time: 0:38.532 min n/s: 966.494 CPU 100.0% n/s(1CPU): 966.494 nodes: 37.210.000
Ruffian 2.1.0 found +M15 in 48 seconds
Engine: Ruffian 2.1.0 (256 MB)
by Perola Valfridsson
10/27 0:00 -2.41 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Rgf8 4.Nxc6 Qxc6 5.Bf4 Ra8 6.Rxa8 Rxa8 7.Bxg5 Bxg5 8.Qxf3 Kg8 (4.341.427) 6679
11/29 0:01 -2.37 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Rgf8 4.Nxc6 Qxc6 5.Bf4 Ra8 6.Rxa8 Qxa8 7.Qxb5 Ne4 (12.699.306) 7016
12/30 0:04 -2.72-- 1.h5 (31.868.770) 6898
12/30 0:11 -3.03 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Ra8 4.Rxa8 Rxa8 5.Bxg5 Bxg5 6.Rh5 Qa7 7.Rxg5 Qa1+ 8.Kb3 Qa4+ 9.Kb2 hxg5 10.Nxc6 (75.203.971) 6416
13/34 0:34 -2.68++ 1.h5 (208.768.812) 6134
13/34 0:39 -2.53 1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Rgf8 4.Bf4 Rbc8 5.Nxc6 Qxc6 6.Ra3 Be7 7.Ra7 Bf6 8.Kb3 (234.806.065) 5948
13/37 0:48 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (281.620.012) 5800
14/37 0:48 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (282.550.916) 5798
15/37 0:49 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (286.045.912) 5804
16/37 0:50 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (294.060.341) 5829
17/37 0:52 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (309.917.420) 5871
18/37 0:58 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (346.864.565) 5960
19/37 1:08 +M15 1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Kxa1 Qa7+ 12.Na2 Qxa2+ 13.Kxa2 f2 14.Bh3+ (412.419.527) 6064
best move: Qd3xg6 time: 1:21.828 min n/s: 6.406.335 CPU 98.0% n/s(1CPU): 6.537.076 nodes: 524.230.408
-
Eelco de Groot
- Posts: 4555
- Joined: Sun Mar 12, 2006 2:40 am
- Full name:
Re: Stockfish Development Version: Finds Mate Much Quicker...
That is a good result indeed for Rebel 15x2! This below is not a good version of Rebel 14.1 MOD it's just an experiment that was active but it took 19 minutes to get the first PV at depth 28 and then more than an hour to resolve Qxg6+ to Mate in 15..
Code: Select all
1r4r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - -
Engine: Rebel 14.1 MOD Verification (512 MB)
gemaakt door Fabien Letouzey, Pawel Koziol, Chris Wh
14/44 0:01 -2.76 1.h5 Kh8 2.hxg6 Pd6 3.Dxf3 Tgf8
4.Dg4 La8 5.Pa6 (752.229) 660
15/47 0:04 -2.25 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgf8
4.Lxh6 Pc4+ 5.Ka2 Kg8 6.Lf4 Pxa5
7.Lxb8 Txb8 8.Dxf3 Ta8 9.Pxc6 Pc4+
10.Kb1 Dxc6 (3.082.332) 730
16/47 0:04 -2.24 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgf8
4.Lxh6 Pc4+ 5.Ka2 Pxa5 6.Lf4+ Kg8
7.Dxf3 Lxd4 8.cxd4 Ta8 9.Dh5 Pc4+
10.Kb1 (3.179.594) 728
17/55 0:08 -2.34 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+
4.Kb1 Tgc8 5.Lxh6 gxh6 6.Txh6+ Kg8
7.Pxc6 Txc6 8.Th7 Lg7 9.Ta2 b4
10.Kc1 (6.009.099) 735
18/55 0:08 -2.24 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+
4.Kb1 Pxa5 5.Lxh6 gxh6 6.Txh6+ Kg7
7.Th7+ Kf8 8.Pxc6 Dxc6 9.Dxf3 Txg6
10.Th8+ Kg7 11.Txb8 Pc4 12.Kc2 Dc7
13.Ta8 Dxg3 14.Dxg3 (6.463.899) 733
19/55 0:12 -2.27 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+
4.Kb1 Pxa5 5.Lxh6 gxh6 6.Txh6+ Kg7
7.Th7+ Kf8 8.Pxc6 Dxc6 9.Dxf3 Txg6
10.Th8+ Kg7 11.Txb8 Dc7 12.Ta8 Txg3
13.Ta7 Txf3 14.Txc7+ (8.922.346) 732
20/55 0:28 -2.67 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgc8 4.Ta2 f2
5.g4 Pe4 6.Lxh6 gxh6 7.Txh6+ Kg8
8.Pxc6 Dxc6 9.Ta7 Dxc3+ 10.Dxc3 Txc3 (20.896.599) 744
21/60 1:11 -2.66 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgc8 4.Ta6 Pc4+
5.Kb1 Lb7 6.Ta7 Pxe3 7.Dxe3 Tf8
8.Txb7 Dxb7 9.Th2 (53.032.010) 745
22/60 1:29 -2.71 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgc8 4.Ta6 Pc4+
5.Kb1 f2 6.Pxc6 Txc6 7.Txc6 Dxc6
8.Lxh6 gxh6 9.Txh6+ Kg8 10.Th5 (66.544.645) 745
23/60 1:53 -2.78 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgc8 4.Ta6 Pc4+
5.Kb1 Kg8 6.Lxh6 gxh6 7.Txh6 Lg7
8.Th7 Lb7 9.Txg7+ Dxg7 10.Ta2 Tf8
11.Th2 (84.527.243) 745
24/60 3:02 -2.91 1.h5 Kh8 2.hxg6 Pd6 3.Ta6 Lb7 4.Le3 Tbe8
5.Ta7 Td8 (135.765.418) 745
25/65 7:32 -2.83 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+
4.Kc2 Tgc8 5.Lxh6 gxh6 6.Txh6+ Kg8
7.Dxf3 Lg7 8.Df7+ Dxf7 9.gxf7+ Kxf7
10.Ta7+ Tb7 11.Pxc6 Txa7 12.Pxa7 Lxh6
13.Kd3 Pb2+ 14.Kc2 (339.391.985) 750
26/65 9:24 -2.71 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Tgc8
4.Ta6 Pc4+ 5.Kb1 Kg8 6.Lxh6 gxh6
7.Txc6 Txc6 8.Txh6 Tcb6 9.Th7 Lg7 (421.685.957) 747
27/65 13:18 -2.88 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+
4.Kc2 Tgc8 5.Lxh6 gxh6 6.Txh6+ Kg8
7.Ta2 Ta8 8.Txa8 Txa8 9.Dxf3 Lg7
10.Pxc6 Lxh6 11.Pe5 Ta2+ 12.Kd1 (596.121.914) 746
28/65 18:59 -2.72 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Tgc8
4.Ta6 Pc4+ 5.Kb1 Kg8 6.Lxh6 gxh6
7.Txh6 Lb7 8.Th7 Lg7 9.Dxf3 Lxa6
10.Pxa6 (840.356.863) 737
28/68 61:27 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4
4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1
7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+
10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+
13.Kxa3 f2 14.Lh3+ (2.815.015.668) 763
29/68 75:17 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4
4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1
7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+
10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+
13.Kxa3 f2 14.Lh3+ (3.466.329.730) 767
30/68 110:27 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4
4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1
7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+
10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+
13.Kxa3 f2 14.Lh3+ (5.161.272.964) 778
31/68 156:33 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4
4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1
7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+
10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+
13.Kxa3 f2 14.Lh3+ (7.441.701.580) 792
32/68 223:37 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4
4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1
7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+
10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+
13.Kxa3 f2 14.Lh3+ (10.810.915.795) 805
33/68 393:38 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4
4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1
7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+
10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+
13.Kxa3 f2 14.Lh3+ (19.114.790.761) 809
beste zet: Dd3xg6 tijd: 438:47.485 min n/s: 819.650 CPU 100.0% n/s(1CPU): 819.650 nodes: 21.579.010.000
Debugging is twice as hard as writing the code in the first
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
place. Therefore, if you write the code as cleverly as possible, you
are, by definition, not smart enough to debug it.
-- Brian W. Kernighan
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Dicaste
- Posts: 142
- Joined: Mon Apr 16, 2012 7:23 pm
- Location: Istanbul, TURKEY
Re: Stockfish Development Version: Finds Mate Much Quicker...
It only took 58 secs to find in my pc. 1:37 for #15Eelco de Groot wrote: ↑Tue May 17, 2022 7:09 pm That is a good result indeed for Rebel 15x2! This below is not a good version of Rebel 14.1 MOD it's just an experiment that was active but it took 19 minutes to get the first PV at depth 28 and then more than an hour to resolve Qxg6+ to Mate in 15..
Code: Select all
1r4r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - - Engine: Rebel 14.1 MOD Verification (512 MB) gemaakt door Fabien Letouzey, Pawel Koziol, Chris Wh 14/44 0:01 -2.76 1.h5 Kh8 2.hxg6 Pd6 3.Dxf3 Tgf8 4.Dg4 La8 5.Pa6 (752.229) 660 15/47 0:04 -2.25 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgf8 4.Lxh6 Pc4+ 5.Ka2 Kg8 6.Lf4 Pxa5 7.Lxb8 Txb8 8.Dxf3 Ta8 9.Pxc6 Pc4+ 10.Kb1 Dxc6 (3.082.332) 730 16/47 0:04 -2.24 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgf8 4.Lxh6 Pc4+ 5.Ka2 Pxa5 6.Lf4+ Kg8 7.Dxf3 Lxd4 8.cxd4 Ta8 9.Dh5 Pc4+ 10.Kb1 (3.179.594) 728 17/55 0:08 -2.34 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+ 4.Kb1 Tgc8 5.Lxh6 gxh6 6.Txh6+ Kg8 7.Pxc6 Txc6 8.Th7 Lg7 9.Ta2 b4 10.Kc1 (6.009.099) 735 18/55 0:08 -2.24 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+ 4.Kb1 Pxa5 5.Lxh6 gxh6 6.Txh6+ Kg7 7.Th7+ Kf8 8.Pxc6 Dxc6 9.Dxf3 Txg6 10.Th8+ Kg7 11.Txb8 Pc4 12.Kc2 Dc7 13.Ta8 Dxg3 14.Dxg3 (6.463.899) 733 19/55 0:12 -2.27 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+ 4.Kb1 Pxa5 5.Lxh6 gxh6 6.Txh6+ Kg7 7.Th7+ Kf8 8.Pxc6 Dxc6 9.Dxf3 Txg6 10.Th8+ Kg7 11.Txb8 Dc7 12.Ta8 Txg3 13.Ta7 Txf3 14.Txc7+ (8.922.346) 732 20/55 0:28 -2.67 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgc8 4.Ta2 f2 5.g4 Pe4 6.Lxh6 gxh6 7.Txh6+ Kg8 8.Pxc6 Dxc6 9.Ta7 Dxc3+ 10.Dxc3 Txc3 (20.896.599) 744 21/60 1:11 -2.66 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgc8 4.Ta6 Pc4+ 5.Kb1 Lb7 6.Ta7 Pxe3 7.Dxe3 Tf8 8.Txb7 Dxb7 9.Th2 (53.032.010) 745 22/60 1:29 -2.71 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgc8 4.Ta6 Pc4+ 5.Kb1 f2 6.Pxc6 Txc6 7.Txc6 Dxc6 8.Lxh6 gxh6 9.Txh6+ Kg8 10.Th5 (66.544.645) 745 23/60 1:53 -2.78 1.h5 Kh8 2.hxg6 Pd6 3.Le3 Tgc8 4.Ta6 Pc4+ 5.Kb1 Kg8 6.Lxh6 gxh6 7.Txh6 Lg7 8.Th7 Lb7 9.Txg7+ Dxg7 10.Ta2 Tf8 11.Th2 (84.527.243) 745 24/60 3:02 -2.91 1.h5 Kh8 2.hxg6 Pd6 3.Ta6 Lb7 4.Le3 Tbe8 5.Ta7 Td8 (135.765.418) 745 25/65 7:32 -2.83 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+ 4.Kc2 Tgc8 5.Lxh6 gxh6 6.Txh6+ Kg8 7.Dxf3 Lg7 8.Df7+ Dxf7 9.gxf7+ Kxf7 10.Ta7+ Tb7 11.Pxc6 Txa7 12.Pxa7 Lxh6 13.Kd3 Pb2+ 14.Kc2 (339.391.985) 750 26/65 9:24 -2.71 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Tgc8 4.Ta6 Pc4+ 5.Kb1 Kg8 6.Lxh6 gxh6 7.Txc6 Txc6 8.Txh6 Tcb6 9.Th7 Lg7 (421.685.957) 747 27/65 13:18 -2.88 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Pc4+ 4.Kc2 Tgc8 5.Lxh6 gxh6 6.Txh6+ Kg8 7.Ta2 Ta8 8.Txa8 Txa8 9.Dxf3 Lg7 10.Pxc6 Lxh6 11.Pe5 Ta2+ 12.Kd1 (596.121.914) 746 28/65 18:59 -2.72 1.h5 Pd6 2.hxg6+ Kh8 3.Le3 Tgc8 4.Ta6 Pc4+ 5.Kb1 Kg8 6.Lxh6 gxh6 7.Txh6 Lb7 8.Th7 Lg7 9.Dxf3 Lxa6 10.Pxa6 (840.356.863) 737 28/68 61:27 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4 4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1 7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+ 10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+ 13.Kxa3 f2 14.Lh3+ (2.815.015.668) 763 29/68 75:17 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4 4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1 7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+ 10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+ 13.Kxa3 f2 14.Lh3+ (3.466.329.730) 767 30/68 110:27 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4 4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1 7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+ 10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+ 13.Kxa3 f2 14.Lh3+ (5.161.272.964) 778 31/68 156:33 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4 4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1 7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+ 10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+ 13.Kxa3 f2 14.Lh3+ (7.441.701.580) 792 32/68 223:37 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4 4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1 7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+ 10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+ 13.Kxa3 f2 14.Lh3+ (10.810.915.795) 805 33/68 393:38 +M15 1.Dxg6+ Kxg6 2.Ld3+ Kh5 3.g4+ Kxg4 4.Tg1+ Kh3 5.Lf1+ Kh2 6.Lg3+ Kxg1 7.Ta1 Ta8 8.Tb1 Ta1 9.Kxa1 Ta8+ 10.Kb2 Ta1 11.Txa1 Da7 12.Tb1 Da3+ 13.Kxa3 f2 14.Lh3+ (19.114.790.761) 809 beste zet: Dd3xg6 tijd: 438:47.485 min n/s: 819.650 CPU 100.0% n/s(1CPU): 819.650 nodes: 21.579.010.000
Code: Select all
New game Line 0.0
1r4r1/3q1npk/2b1pbnp/Rp1p4/1N1P3P/2PQ1pP1/1K3B2/5B1R w - - 0 1
Analysis by Rebel 15:
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Raa1 Ra8 6.Rh1+ Kg2 7.Raf1 g5 8.Rhg1+ Kh3 9.Rh1+ Kg4
Black is better: -/+ (-1.26) Depth: 10/34 00:00:00
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Raa1 Ra8 6.Rh1+ Kg2 7.Raf1 Qa7 8.Kb3
Black is clearly better: -+ (-1.93 --) Depth: 11/34 00:00:00
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Raa1 Ra8 6.Rh1+ Kg2 7.Raf1 Bxd4 8.cxd4 Qc7
Black is better: -/+ (-1.22 ++) Depth: 11/34 00:00:00
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Raa1 Ra8 6.Rh1+ Kg2 7.Raf1 Be5 8.dxe5 Nxe5 9.Kc2 Nxd3 10.Na6
Black is better: -/+ (-1.26) Depth: 11/34 00:00:00
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Rg6 Bxh4 6.Bf1+ Kh2 7.Bxh4 Ra8 8.Bg3+ Kg1 9.Ra7 Rxa7 10.Be1+ Kxf1
Black is clearly better: -+ (-1.64 --) Depth: 12/34 00:00:00
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Rg6 Bxh4 6.Bf1+ Kh2 7.Bxh4 Ra8 8.Bg3+ Kg1 9.Be5+
Black is clearly better: -+ (-1.80 --) Depth: 12/34 00:00:00
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Rg6 Bxh4 6.Bf1+ Kh2 7.Bxh4 Ra8 8.Bg3+ Kg1 9.Be1+
Black is clearly better: -+ (-2.05 --) Depth: 12/34 00:00:00
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Raa1 Qd6 6.Nxc6 Ra8 7.Bf1+ Kh2 8.Be3
Black is clearly better: -+ (-2.41 --) Depth: 12/34 00:00:00
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Raa1 Qd6 6.Nxc6 Ra8 7.Na7 Bxh4 8.Bf1+ Kh2 9.Bxh4 Qa3+ 10.Rxa3 Kxg1 11.Nc6
Black has a decisive advantage: -+ (-2.91 --) Depth: 12/34 00:00:01 376kN
1.h5 Ng5 2.hxg6+ Kh8 3.Be3 Rgc8 4.Bf4 Ra8 5.Rxa8 Bxa8 6.Bxg5 Bxg5 7.Qxf3 Bd2 8.Qf7 Qxf7 9.gxf7 Bxc3+ 10.Kb3
Black has a decisive advantage: -+ (-2.89) Depth: 12/34 00:00:01 447kN
1.h5 Kh8 2.hxg6 Nd6 3.Ra6 Nc4+ 4.Kc2 Bb7 5.Ra7 Rgf8 6.Bh3 Ra8 7.Rxa8 Bxa8 8.Re1
Black has a decisive advantage: -+ (-2.57) Depth: 13/34 00:00:01 3420kN
1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Ne4 4.Qxf3 Bb7 5.Be3 Rgf8 6.Bxh6 gxh6 7.Rxh6+ Kg8 8.Qh5
Black has a decisive advantage: -+ (-2.73 --) Depth: 14/34 00:00:01 4003kN
1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Ne4 4.Qxf3 Bb7 5.Be3 Rgc8 6.Ra7 Kg8 7.Qf4 Ra8 8.Kc2
Black has a decisive advantage: -+ (-2.89 --) Depth: 14/34 00:00:02 4003kN
1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Ne4 4.Qxf3 Bb7 5.Be3 Rgc8 6.Ra3 Qe7 7.Bxh6 gxh6 8.Rxh6+ Kg8 9.Bd3
Black has a decisive advantage: -+ (-2.90) Depth: 14/34 00:00:02 4003kN
1.h5 Nd6 2.Qxg6+ Kh8 3.Bd3 Ne4 4.Rha1 Rbc8 5.Ra7 Bb7 6.Be3 Qc7 7.R1a3 Qe7 8.Nc2 Rgf8 9.Ne1
Black has a decisive advantage: -+ (-2.84) Depth: 15/35 00:00:02 6840kN
1.h5 Nd6 2.Qxg6+ Kh8 3.Bd3 Ne4 4.Ra6 Rgc8 5.Rha1 Bb7 6.Ra7
Black has a decisive advantage: -+ (-3.00 --) Depth: 16/42 00:00:03 10140kN
1.h5 Nd6 2.Qxg6+ Kh8 3.Bd3 Ne4 4.Be3 Rbc8 5.Rf1 Qc7 6.Nxc6 Qxc6 7.Rxb5
Black has a decisive advantage: -+ (-3.16 --) Depth: 16/42 00:00:04 10140kN
1.h5 Nd6 2.hxg6+ Kh8 3.Qxf3 Rgf8 4.Be3 Bg5 5.Bf4 Bxf4 6.gxf4 Qc7 7.Ra1 Kg8 8.Kc1 Be8 9.Bh3 Bxg6 10.Bxe6+ Kh8
Black has a decisive advantage: -+ (-3.00 ++) Depth: 16/42 00:00:06 16980kN
1.h5 Kh8 2.hxg6 Nd6 3.Ra6 Ne4 4.Qxf3 Bb7 5.Ra7 Rgf8 6.Be3 Bg5 7.Qe2 Nxg3 8.Qe1 Nxh1 9.Bxg5 Nf2 10.Nd3 Nxd3+ 11.Bxd3 Kg8
Black has a decisive advantage: -+ (-3.02) Depth: 16/42 00:00:06 20400kN
1.h5 Nd6 2.hxg6+ Kh8 3.Qxf3 Rgf8 4.Be3 Bg5 5.Bf4 e5 6.Qh5 Bxf4 7.gxf4 Nc4+ 8.Bxc4 dxc4 9.Rd1 exf4 10.d5 Ba8 11.Rf1 Rbc8 12.Rf2 Rf5 13.Qf3
Black has a decisive advantage: -+ (-3.03) Depth: 17/42 00:00:07 21561kN
1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Ne4 4.Qxf3 Bb7 5.Be3 Rgf8 6.Ra7 Bg5 7.Qe2 Nxg3 8.Qe1 Nxh1 9.Bxg5 Qc7 10.Bd3 Qh2+ 11.Kb3 hxg5 12.Qxe6 Rbe8 13.Qg4
Black has a decisive advantage: -+ (-2.89) Depth: 18/42 00:00:08 27060kN
1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Nc4+ 4.Kc2 Bb7 5.Be3 Rgf8 6.Bxh6 gxh6 7.Rxh6+ Kg8 8.Bh3 Bxa6 9.g7 Bxg7 10.Qh7+ Kf7 11.Nxa6 f2 12.Nc5 Ne3+ 13.Kb2 f1Q 14.Bxf1 Nc4+
Black has a decisive advantage: -+ (-2.73 ++) Depth: 19/42 00:00:10 33420kN
1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Nc4+ 4.Kc2 Bb7 5.Be3 Rgf8 6.Bxh6 gxh6 7.Rxh6+ Kg8 8.Bh3 Rbe8 9.Bg2
Black has a decisive advantage: -+ (-3.05 --) Depth: 19/42 00:00:11 33420kN
1.h5 Nd6 2.hxg6+ Kh8 3.Ra6 Nc4+ 4.Kc2 Bb7 5.Be3 Rgf8 6.Ra7 Kg8 7.Na6 Qe8 8.Nb4 e5 9.Qe2
Black has a decisive advantage: -+ (-3.30 --) Depth: 19/44 00:00:15 50580kN
1.h5 Nd6 2.hxg6+ Kh8 3.Kc2 Ne4 4.Qxf3 Rgf8 5.Be3 Bb7 6.Bd3 Bg5 7.Qe2 Nxg3 8.Qe1 Nxh1 9.Bxg5 Nf2 10.Bxh6 gxh6
Black has a decisive advantage: -+ (-3.44) Depth: 19/44 00:00:26 83280kN
1.h5 Nd6 2.hxg6+ Kh8 3.Qxf3 Rgf8 4.Be3 Bg5 5.Bf4 e5 6.Qh5 exf4 7.Qxg5 Kg8 8.Qh4 Nc4+ 9.Bxc4 bxc4 10.gxf4 Qd6 11.Ka3 Ra8 12.Rxa8 Rxa8+ 13.Kb2 Qxg6 14.Qf2 Qd6 15.Rg1
Black has a decisive advantage: -+ (-3.08) Depth: 20/49 00:00:38 120MN
1.h5 Nd6 2.hxg6+ Kh8 3.Qxf3 Rgf8 4.Be3 Bg5 5.Bf4 e5 6.Qh5 exf4 7.Qxg5 Kg8 8.Qh4 Nc4+ 9.Bxc4 bxc4 10.gxf4 Qd6 11.Ka3 Ra8 12.Rxa8 Rxa8+ 13.Kb2 Qxg6 14.Qf2 Bb5 15.Nxd5 Qd6
Black has a decisive advantage: -+ (-2.92 ++) Depth: 21/53 00:00:46 145MN
1.h5 Nd6 2.hxg6+ Kh8 3.Qxf3 Rgf8 4.Be3 Bg5 5.Bf4 e5 6.Qh5 exf4 7.Qxg5 Kg8 8.Qh4 Nc4+ 9.Bxc4 bxc4 10.gxf4 Qd6 11.Ka3 Ra8 12.Rxa8 Rxa8+ 13.Kb2 Qxg6 14.Qh3 Qe8 15.Qg2 Kh7 16.Qc2+ Kh8
Black has a decisive advantage: -+ (-2.97) Depth: 21/53 00:00:50 157MN
1.h5 Nd6 2.hxg6+ Kh8 3.Qxf3 Rgf8 4.Be3 Bg5 5.Bf4 e5 6.Qh5 exf4 7.Qxg5 Kg8 8.Qh4 Nc4+ 9.Bxc4 bxc4 10.gxf4 Qd6 11.Rc5 Rxf4 12.Qh3
Black has a decisive advantage: -+ (-3.22 --) Depth: 22/53 00:00:57 182MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Qd8 11.Nxc6 Nd6 12.Nxd8 Nc4+ 13.Bxc4+ Kg2 14.Bd3 f2
Black has a decisive advantage: -+ (-2.72 ++) Depth: 22/53 00:00:58 182MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Nh8
Black has a decisive advantage: -+ (-2.56 ++) Depth: 22/53 00:00:58 185MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra2+ 11.Nxa2 e5 12.dxe5 Qb7
Black is clearly better: -+ (-2.31 ++) Depth: 22/53 00:00:59 185MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra2+ 11.Nxa2 e5 12.dxe5 d4 13.exf6 f2 14.fxg7 Qc8
Black is clearly better: -+ (-1.95 ++) Depth: 22/53 00:00:59 185MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra2+ 11.Nxa2 e5 12.dxe5 Qf5 13.exf6 Qxb1+ 14.Kxb1 gxf6 15.Bh3 d4
Black is clearly better: -/+ (-1.45 ++) Depth: 22/53 00:01:00 189MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra2+ 11.Nxa2 Ne5 12.dxe5 Ba8
Black is better: -/+ (-0.78 ++) Depth: 22/53 00:01:01 192MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 g5 11.Nxc6 Ra2+ 12.Kxa2 Bxd4 13.Nxd4 h5 14.hxg5 Qa7+ 15.Kb3
The position is equal: = (0.10 ++) Depth: 22/53 00:01:08 214MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra2+ 11.Nxa2 b4 12.Nxb4 Qd6 13.Bxd6 Nxd6 14.Nxc6 Bxh4 15.Ne5 Kf2 16.Bd3 h5
White is better: +/- (1.25 ++) Depth: 22/53 00:01:11 225MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra2+ 11.Nxa2 Qc7 12.Bxc7 Nd6
White has a decisive advantage: +- (2.73 ++) Depth: 22/53 00:01:15 241MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra2+ 11.Nxa2 Qc7 12.Bxc7 Kf2 13.Bh3 e5 14.Nb4 Bb7 15.Nd3+ Ke3 16.dxe5 d4 17.exf6 dxc3+ 18.Kxc3
White is clearly winning: +- (4.63 ++) Depth: 22/53 00:01:19 251MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra2+ 11.Nxa2 Qc7 12.Bxc7 Bxh4 13.Bh3+ Be1 14.Rxe1+ Kf2 15.Rf1+ Ke3 16.Bg3 Bb7
White is clearly winning: +- (7.05 ++) Depth: 22/53 00:01:20 257MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 f2 11.Nxc6 Ra2+ 12.Kxa2 Qa7+ 13.Nxa7 b4
White is clearly winning: +- (10.12 ++) Depth: 22/55 00:01:22 261MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Rbd8 8.Nxc6 Qa7 9.Nxa7 Ng5
White is clearly winning: +- (14.00 ++) Depth: 22/55 00:01:22 261MN
1.Qxg6+ Kh8 2.Bd3 Bxh4 3.gxh4 Ng5 4.hxg5 Ba8 5.gxh6
White is clearly winning: +- (18.94 ++) Depth: 22/55 00:01:22 264MN
1.Qxg6+ Kh8 2.Bd3 Ng5
White is clearly winning: +- (28.27 ++) Depth: 22/55 00:01:22 264MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra2+ 11.Nxa2 g5
White mates: +- (#256 ++) Depth: 22/55 00:01:22 264MN
1.Qxg6+ Kxg6 2.Bd3+ Kh5 3.g4+ Kxg4 4.Rg1+ Kh3 5.Bf1+ Kh2 6.Bg3+ Kxg1 7.Ra1 Ra8 8.Rb1 Ra1 9.Kxa1 Ra8+ 10.Kb2 Ra1 11.Rxa1 Qa7 12.Rb1 Qa3+ 13.Kxa3 f2 14.Bh3+ f1Q 15.Rxf1#
White mates: +- (#15) Depth: 22/55 00:01:37 308MN
(, 18.05.2022)
-
Kooper
- Posts: 17
- Joined: Thu May 07, 2020 9:32 pm
- Full name: Kooper Moris
Re: Stockfish Development Version: Finds Mate Much Quicker...
Stockfish NNUE can't see this. In these positions test:
[fen]b5kb/bb5b/4q3/2P5/3P1PPb/2N2PbR/PP1QB3/R1B2K2 w - - 0 1[/fen]
Stockfish without NNUE can find Qe3 but with NNUE it choose f5.
[fen]b5kb/bb1q3b/8/2P5/3P1PPb/2N1QPbR/PP2B3/R1B2K2 w - - 0 1[/fen]
Stockfish without NNUE can find Bb5 but with NNUE it choose Bc4.
[fen]b5kb/b2q3b/2b5/1BP5/3P1PPb/2N1QPbR/PP6/R1B2K2 w - - 0 1[/fen]
Stockfish without NNUE can find Bx6 but with NNUE it choose Bc4.
[fen]b5kb/bb5b/4q3/2P5/3P1PPb/2N2PbR/PP1QB3/R1B2K2 w - - 0 1[/fen]
Stockfish without NNUE can find Qe3 but with NNUE it choose f5.
[fen]b5kb/bb1q3b/8/2P5/3P1PPb/2N1QPbR/PP2B3/R1B2K2 w - - 0 1[/fen]
Stockfish without NNUE can find Bb5 but with NNUE it choose Bc4.
[fen]b5kb/b2q3b/2b5/1BP5/3P1PPb/2N1QPbR/PP6/R1B2K2 w - - 0 1[/fen]
Stockfish without NNUE can find Bx6 but with NNUE it choose Bc4.
-
Kooper
- Posts: 17
- Joined: Thu May 07, 2020 9:32 pm
- Full name: Kooper Moris
Re: Stockfish Development Version: Finds Mate Much Quicker...
Another way besides turn off the NNUE is to change the net.
Stockfish 2020 05 17 with default net unable to find them but with nn-7b23f384897e.nnue net it can. This net from https://github.com/official-stockfish/S ... ssues/3239 is tuned using Drawkiller_balanced_big.epd book.
However, this net plays weaker at opening, but if you have reach winning position it plays shorter mate by e.g playing R+P+P vs B+N.
Stockfish 2020 05 17 with default net unable to find them but with nn-7b23f384897e.nnue net it can. This net from https://github.com/official-stockfish/S ... ssues/3239 is tuned using Drawkiller_balanced_big.epd book.
However, this net plays weaker at opening, but if you have reach winning position it plays shorter mate by e.g playing R+P+P vs B+N.