This position occurred in a game by Anton Korobov on his way to winning the Czech Open. The Ukrainian found an energetic solution.
[d]r1b2r2/p5kp/1p1q1p2/4nP2/3p1N2/3B4/P2Q2PP/4RRK1 w - - 0 21
1.Rxe5!!
Test Position: Punishing the stubborn
Moderator: Ras
-
Albert Silver
- Posts: 3026
- Joined: Wed Mar 08, 2006 9:57 pm
- Location: Rio de Janeiro, Brazil
Test Position: Punishing the stubborn
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."
-
yanquis1972
- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: Test Position: Punishing the stubborn
great position albert! very current & shames todays top engines, at least at low to moderate depths. after 5 minutes using all 4 cores rybka does not find the best move on my machine. ill give little brother dynamic a shot at it.
...but for whatever reason i first went with junior, & with the same specifications as rybka the move is found in under a minute! perhaps an example of extreme mpv search luck, or maybe junior's just that good.
Analysis by Deep Junior 11.2 UCI:
1.Nh5+ Kh8 2.Qh6 Rf7 3.Bc4 Rc7 4.Bb3
+/- (0.75) Depth: 6 00:00:00 18kN
1.Nh5+
+/- (1.23) Depth: 9 00:00:00 92kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4 Qe7 5.Bxf7 Qxf7 6.Nxf6
+- (1.72) Depth: 9 00:00:00 251kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4 Qe7 5.Bxf7 Qxf7 6.Rf4 d3 7.Nxf6 Ba6
+- (1.64) Depth: 12 00:00:00 3617kN
1.Nh5+ Kh8
+/- (1.16) Depth: 15 00:00:03 32712kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 Bg6 8.Nxf6+ Kh8 9.Ne8 Qc5+ 10.Kh1
+/- (1.04) Depth: 17 00:00:11 94276kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 Bg6 8.Nxf6+ Kg7 9.Ne8+ Rxe8 10.Rxe8
+/- (1.07) Depth: 19 00:00:30 250mN
1.Rxe5
+- (1.52) Depth: 19 00:00:55 460mN
1.Rxe5 fxe5 2.f6+ Kf7 3.Bc4+ Ke8 4.f7+ Kd8 5.Nd5 Be6 6.Qh6 d3 7.Ne3 Kd7 8.Rf6 Qd4 9.Bxe6+ Kc7 10.Bd5
+/- (1.32) Depth: 20 00:04:16 2372mN
1.Rxe5 fxe5 2.f6+ Kf7 3.Bc4+ Ke8 4.f7+ Kd8 5.Nd5 Be6 6.Qh6 d3 7.Ne3 Kc7 8.Bxe6 Rad8 9.Kh1 d2 10.Nd5+
+- (1.51) Depth: 21 00:05:30 3051mN
...but for whatever reason i first went with junior, & with the same specifications as rybka the move is found in under a minute! perhaps an example of extreme mpv search luck, or maybe junior's just that good.
Analysis by Deep Junior 11.2 UCI:
1.Nh5+ Kh8 2.Qh6 Rf7 3.Bc4 Rc7 4.Bb3
+/- (0.75) Depth: 6 00:00:00 18kN
1.Nh5+
+/- (1.23) Depth: 9 00:00:00 92kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4 Qe7 5.Bxf7 Qxf7 6.Nxf6
+- (1.72) Depth: 9 00:00:00 251kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4 Qe7 5.Bxf7 Qxf7 6.Rf4 d3 7.Nxf6 Ba6
+- (1.64) Depth: 12 00:00:00 3617kN
1.Nh5+ Kh8
+/- (1.16) Depth: 15 00:00:03 32712kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 Bg6 8.Nxf6+ Kh8 9.Ne8 Qc5+ 10.Kh1
+/- (1.04) Depth: 17 00:00:11 94276kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 Bg6 8.Nxf6+ Kg7 9.Ne8+ Rxe8 10.Rxe8
+/- (1.07) Depth: 19 00:00:30 250mN
1.Rxe5
+- (1.52) Depth: 19 00:00:55 460mN
1.Rxe5 fxe5 2.f6+ Kf7 3.Bc4+ Ke8 4.f7+ Kd8 5.Nd5 Be6 6.Qh6 d3 7.Ne3 Kd7 8.Rf6 Qd4 9.Bxe6+ Kc7 10.Bd5
+/- (1.32) Depth: 20 00:04:16 2372mN
1.Rxe5 fxe5 2.f6+ Kf7 3.Bc4+ Ke8 4.f7+ Kd8 5.Nd5 Be6 6.Qh6 d3 7.Ne3 Kc7 8.Bxe6 Rad8 9.Kh1 d2 10.Nd5+
+- (1.51) Depth: 21 00:05:30 3051mN
-
yanquis1972
- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: Test Position: Punishing the stubborn
Analysis by HIARCS 13.1 MP:
1.Nh5+
+/= (0.66) Depth: 11/27 00:00:00 631kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8
+/= (0.66) Depth: 11/27 00:00:00 650kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Bb7 5.Bxb7 Rxb7 6.Ne6 Rf7 7.Re4 d3 8.Rd4 Qe7
+/= (0.48) Depth: 12/27 00:00:00 916kN
1.Be4
+/= (0.49) Depth: 12/27 00:00:00 1059kN
1.Be4 Rb8 2.Re3 Rg8 3.Rh3 d3 4.Rf2 Kh8 5.Nxd3 Ng4
+/= (0.56) Depth: 12/31 00:00:00 1351kN
1.Be4 Rb8 2.Re3 Rg8 3.Rd1 Bd7 4.Qxd4 Qxd4 5.Rxd4 Kh8
+/= (0.53) Depth: 13/31 00:00:02 3108kN
1.Nh5+
+/= (0.54) Depth: 13/31 00:00:02 3140kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5
+/= (0.54) Depth: 13/31 00:00:02 3251kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Bb7 5.Bxb7 Rxb7 6.Ne6 Rf7 7.Ng5 Rg7 8.Ne4 Qc6 9.Qxf6 Qxf6 10.Nxf6+ Kf7 11.Nd5 Re8 12.f6
+/= (0.54) Depth: 14/31 00:00:03 5188kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Rb8 5.Bd5 Bxf5 6.Bxf7+
+/- (0.78) Depth: 15/38 00:00:05 8355kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Bb7 5.Bxb7 Rxb7 6.Ne6 Qe7 7.Nxd4
+/- (0.78) Depth: 16/38 00:00:08 12611kN
1.Nh5+ Kh8
+/= (0.53 --) Depth: 17/38 00:00:15 24871kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Bb7 5.Bxb7 Rxb7 6.Ne6 Rf7 7.Ng5
+/= (0.53) Depth: 17/41 00:00:16 25527kN
1.Be4
+/= (0.54) Depth: 17/41 00:00:20 32033kN
1.Be4 Rb8 2.Rd1 d3
+/= (0.56) Depth: 17/45 00:00:32 50409kN
1.Be4 Rb8 2.Bd5 Ng4 3.Be6 Kh8 4.Qd1 Ne5 5.Qh5 Bxe6 6.Nxe6 Rfe8 7.Qh4 Qe7 8.Qxd4 Rbc8 9.Qd2 Rg8 10.Rd1 Qb7 11.Rfe1
+/= (0.60) Depth: 18/45 00:01:13 117mN
1.Be4
+/- (0.85 ++) Depth: 19/48 00:01:43 167mN
1.Be4 Rb8 2.Bd5 Kh8 3.Rxe5
+/- (1.03) Depth: 19/58 00:01:57 193mN
1.Be4 Rb8 2.Bd5 Ng4 3.Be6 d3 4.h3 Ne5 5.Nh5+ Kh8 6.Qh6 Rb7 7.Bd5 Rbf7 8.Bxf7 Rxf7 9.Rf2 Bb7 10.Rd2 Bc6 11.Kh1 Bd7 12.Qf4 Qc6 13.Red1
+/- (0.98) Depth: 20/58 00:03:37 354mN
1.Be4 Rb8 2.Bd5 Ng4 3.Be6 d3 4.h3 Ne5 5.Nh5+ Kh8 6.Qh6 Rb7 7.Bd5 Rbf7 8.Bxf7 Rxf7 9.Rf2 Bd7 10.Qf4
+/- (0.98) Depth: 21/58 00:04:44 468mN
1.Be4 Rb8 2.Bd5 Ng4 3.Be6 d3 4.h3 Ne5 5.Nh5+ Kh8 6.Qh6 Rb7 7.Bd5 Rbf7 8.Bxf7 Rxf7 9.Rf2 b5 10.Qf4 Re7 11.Rd1 Rf7 12.a4 b4 13.a5 Qf8 14.Nxf6 Nc6
+/- (0.96) Depth: 22/58 00:07:07 712mN
1.Nh5+
+/- (0.97) Depth: 22/58 00:07:38 762mN
1.Nh5+
+/- (1.23 ++) Depth: 22/58 00:08:00 799mN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Nxf6+ Kg7 9.Nh5+ Kh8 10.Rd1 Bg6 11.Kh1 Kg8 12.h3 Rc8 13.Nf6+ Kg7 14.Qa4 Ng5 15.Qxa7+ Bf7 16.Ne4
+- (1.62) Depth: 22/58 00:09:12 918mN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Nxf6+ Kg7 9.Nh5+ Kh8 10.Rd1 Bg6 11.Kh1 Kg8 12.h3 Rc8 13.Nf6+ Kg7 14.Qa4 Ng5 15.Qxa7+ Kh8 16.Qb7 Rf8
+- (1.57) Depth: 23/58 00:12:05 1213mN
1.Rxe5
+- (1.57) Depth: 23/58 00:15:36 1596mN
1.Rxe5 fxe5 2.f6+ Kf7 3.Bc4+ Ke8 4.f7+ Kd7 5.Ne6 Bb7 6.Qg5 a6 7.Rf6 Qa3 8.Nxf8+
+- (1.85) Depth: 23/58 00:18:56 1970mN
1.Nh5+
+/= (0.66) Depth: 11/27 00:00:00 631kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8
+/= (0.66) Depth: 11/27 00:00:00 650kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Bb7 5.Bxb7 Rxb7 6.Ne6 Rf7 7.Re4 d3 8.Rd4 Qe7
+/= (0.48) Depth: 12/27 00:00:00 916kN
1.Be4
+/= (0.49) Depth: 12/27 00:00:00 1059kN
1.Be4 Rb8 2.Re3 Rg8 3.Rh3 d3 4.Rf2 Kh8 5.Nxd3 Ng4
+/= (0.56) Depth: 12/31 00:00:00 1351kN
1.Be4 Rb8 2.Re3 Rg8 3.Rd1 Bd7 4.Qxd4 Qxd4 5.Rxd4 Kh8
+/= (0.53) Depth: 13/31 00:00:02 3108kN
1.Nh5+
+/= (0.54) Depth: 13/31 00:00:02 3140kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5
+/= (0.54) Depth: 13/31 00:00:02 3251kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Bb7 5.Bxb7 Rxb7 6.Ne6 Rf7 7.Ng5 Rg7 8.Ne4 Qc6 9.Qxf6 Qxf6 10.Nxf6+ Kf7 11.Nd5 Re8 12.f6
+/= (0.54) Depth: 14/31 00:00:03 5188kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Rb8 5.Bd5 Bxf5 6.Bxf7+
+/- (0.78) Depth: 15/38 00:00:05 8355kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Bb7 5.Bxb7 Rxb7 6.Ne6 Qe7 7.Nxd4
+/- (0.78) Depth: 16/38 00:00:08 12611kN
1.Nh5+ Kh8
+/= (0.53 --) Depth: 17/38 00:00:15 24871kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Be4 Bb7 5.Bxb7 Rxb7 6.Ne6 Rf7 7.Ng5
+/= (0.53) Depth: 17/41 00:00:16 25527kN
1.Be4
+/= (0.54) Depth: 17/41 00:00:20 32033kN
1.Be4 Rb8 2.Rd1 d3
+/= (0.56) Depth: 17/45 00:00:32 50409kN
1.Be4 Rb8 2.Bd5 Ng4 3.Be6 Kh8 4.Qd1 Ne5 5.Qh5 Bxe6 6.Nxe6 Rfe8 7.Qh4 Qe7 8.Qxd4 Rbc8 9.Qd2 Rg8 10.Rd1 Qb7 11.Rfe1
+/= (0.60) Depth: 18/45 00:01:13 117mN
1.Be4
+/- (0.85 ++) Depth: 19/48 00:01:43 167mN
1.Be4 Rb8 2.Bd5 Kh8 3.Rxe5
+/- (1.03) Depth: 19/58 00:01:57 193mN
1.Be4 Rb8 2.Bd5 Ng4 3.Be6 d3 4.h3 Ne5 5.Nh5+ Kh8 6.Qh6 Rb7 7.Bd5 Rbf7 8.Bxf7 Rxf7 9.Rf2 Bb7 10.Rd2 Bc6 11.Kh1 Bd7 12.Qf4 Qc6 13.Red1
+/- (0.98) Depth: 20/58 00:03:37 354mN
1.Be4 Rb8 2.Bd5 Ng4 3.Be6 d3 4.h3 Ne5 5.Nh5+ Kh8 6.Qh6 Rb7 7.Bd5 Rbf7 8.Bxf7 Rxf7 9.Rf2 Bd7 10.Qf4
+/- (0.98) Depth: 21/58 00:04:44 468mN
1.Be4 Rb8 2.Bd5 Ng4 3.Be6 d3 4.h3 Ne5 5.Nh5+ Kh8 6.Qh6 Rb7 7.Bd5 Rbf7 8.Bxf7 Rxf7 9.Rf2 b5 10.Qf4 Re7 11.Rd1 Rf7 12.a4 b4 13.a5 Qf8 14.Nxf6 Nc6
+/- (0.96) Depth: 22/58 00:07:07 712mN
1.Nh5+
+/- (0.97) Depth: 22/58 00:07:38 762mN
1.Nh5+
+/- (1.23 ++) Depth: 22/58 00:08:00 799mN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Nxf6+ Kg7 9.Nh5+ Kh8 10.Rd1 Bg6 11.Kh1 Kg8 12.h3 Rc8 13.Nf6+ Kg7 14.Qa4 Ng5 15.Qxa7+ Bf7 16.Ne4
+- (1.62) Depth: 22/58 00:09:12 918mN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Nxf6+ Kg7 9.Nh5+ Kh8 10.Rd1 Bg6 11.Kh1 Kg8 12.h3 Rc8 13.Nf6+ Kg7 14.Qa4 Ng5 15.Qxa7+ Kh8 16.Qb7 Rf8
+- (1.57) Depth: 23/58 00:12:05 1213mN
1.Rxe5
+- (1.57) Depth: 23/58 00:15:36 1596mN
1.Rxe5 fxe5 2.f6+ Kf7 3.Bc4+ Ke8 4.f7+ Kd7 5.Ne6 Bb7 6.Qg5 a6 7.Rf6 Qa3 8.Nxf8+
+- (1.85) Depth: 23/58 00:18:56 1970mN
-
yanquis1972
- Posts: 1766
- Joined: Wed Jun 03, 2009 12:14 am
Re: Test Position: Punishing the stubborn
an hour of R4 analysis reveals that Nh5+ may be just as powerful --
New game
r1b2r2/p5kp/1p1q1p2/4nP2/3p1N2/3B4/P2Q2PP/4RRK1 w - - 0 1
Analysis by Deep Rybka 4 x64 AN:
1.Be4 Rb8 2.Rc1 Kh8 3.Ne6
+/= (0.44 ++) Depth: 6 00:00:00 4kN
1.Be4 Rb8 2.Rd1 d3 3.Rfe1 Ng4 4.g3 Qd4+ 5.Kg2 Re8 6.Nh5+ Kf7
+/= (0.48) Depth: 6 00:00:00 11kN
1.Be4 Rb8 2.Rd1 d3 3.Qe1 Bd7 4.Nxd3 Qd4+ 5.Rf2 Ba4 6.Rdd2 Rbc8 7.Nxe5 Qxe5 8.Rf3
+/= (0.41) Depth: 7 00:00:00 19kN
1.Be4 Rb8 2.Rd1 Rd8 3.Nh5+ Kh8 4.Qh6 Qf8 5.Qxf8+ Rxf8 6.Rxd4 Ba6 7.Rc1 Rbc8 8.Rxc8
+/= (0.43) Depth: 8 00:00:00 45kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4
+/= (0.53 ++) Depth: 8 00:00:00 46kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4
+/= (0.68 ++) Depth: 8 00:00:00 47kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4 Qe8 5.Bxf7 Qxf7 6.Nxf6 Bb7 7.Re1 Rc8 8.Qh4 Qg7 9.g3
+/= (0.60) Depth: 8 00:00:00 53kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6 4.Rxe5 Rg8 5.Be4 Ba6 6.Re1 Bc4 7.Bf3 Bxa2 8.Rc1
+/- (0.72 ++) Depth: 9 00:00:00 86kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6 4.Rxe5 Rg8 5.Be4 Bxe4 6.Qxe4 Rg4 7.Re8+ Rg8 8.Rxg8+ Kxg8 9.Rf3 Qd7 10.a3 Kh8
+/- (0.83) Depth: 9 00:00:00 98kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Bc6 9.Rf4 Rg8 10.g3 Rf8 11.Kf2 Bd5
+/- (0.78) Depth: 10 00:00:00 168kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Rg8 9.g3 Rf8 10.Rf4 Bc6 11.Kf2 b5 12.Ke2 Kg8 13.Bc2 Bd5 14.Kd3 Rf7
+/- (0.86) Depth: 11 00:00:00 221kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Rg8 9.g3 Rf8 10.Rf4 Bc6 11.Kf2 b5 12.Ke2 Kg8 13.Bc2 Bd5 14.Kd3 Rf7
+/- (0.86) Depth: 12 00:00:01 326kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Rg8 9.g3 Rf8 10.Rf4 Bc6 11.Kf2 b5 12.Ke2 Kg8 13.Bc2 Bd5 14.Kd3 Rf7
+/- (0.86) Depth: 13 00:00:02 524kN
1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6 4.Rxe5 Re8 5.Rxe8+ Bxe8 6.Qxd6 Rxd6 7.Re1 Bd7 8.Kf2 Kg8 9.Re7 h6 10.Bc4+ Kf8 11.Rh7 d3 12.Rxh6 Rxh6
+/- (0.87) Depth: 14 00:00:06 1650kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Rg8 9.g3 Rf8 10.Rf4 Bd5 11.Rxd4 Bxa2 12.Rd7 Bg8 13.Rd6 Bf7 14.Ba6 Kg8 15.Rd7 Ra8 16.Kf2
+/- (0.87) Depth: 15 00:00:10 2746kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6 4.Rxe5 Rg8 5.g3 Bc6 6.Rfe1 Rgf8 7.Qd2 Bd7 8.Qf2 Bc6 9.Qe2 R6f7 10.Qb2 Rf6 11.Qc1 Rc8 12.Qf4 Rg8 13.Bc4 Rd8 14.Qh4 d3 15.Bxd3 Qd4+ 16.Qxd4
+/- (0.88) Depth: 16 00:00:24 6979kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6 4.Rxe5 Rg8 5.g3 Bc6 6.Rfe1 Rgf8 7.Qd2 Bd7 8.Qf2 Bc6 9.Qc2 Rc8 10.Bc4 Qa3
+/- (0.88) Depth: 17 00:00:55 16286kN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 Rd8 7.Nh5
+/- (1.00 ++) Depth: 18 00:01:46 31060kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+
+/- (1.15 ++) Depth: 18 00:01:59 34316kN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4
+- (1.55 ++) Depth: 18 00:02:43 45448kN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Rd1 Bg6 9.Nxf6+ Kg7 10.Rf2 Qe5 11.Qb4 Rd8 12.Ng4 Qe6 13.h3 Bf5 14.Rfxd2 Rxd2 15.Rxd2 Kg6 16.Qf4
+- (1.98) Depth: 18 00:04:56 82687kN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Rd1 Bg6 9.Nxf6+ Kg7 10.Rf2 Qe5 11.Qb4 Rd8 12.Ng4 Qe6 13.h3 Bf5 14.Rfxd2 Rxd2 15.Rxd2 Kg6 16.Qf4
+- (2.10 ++) Depth: 19 00:06:23 106mN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Rd1 Bg6 9.Nxf6+ Kg7 10.Rf2 Rc8 11.Qg4 Rd8 12.Ne4 Qa3 13.Qe6 Qe3 14.Rdxd2 Qe1+ 15.Rf1[] Qe3+ 16.Rdf2
+- (2.23) Depth: 19 00:08:45 145mN, tb=3
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Rd1 Bg6 9.Nxf6+ Kg7 10.Rf2 Rc8 11.Qg4 Rd8 12.Ne4 Qa3 13.Qe6 Qe3 14.Rdxd2 Qe1+ 15.Rf1[] Qe3+ 16.Rdf2
+- (2.23) Depth: 20 00:09:20 154mN, tb=3
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+[] Nxf7 6.Qh4[] d3 7.Nh5[] d2 8.Rd1 Bg6 9.Nxf6+[] Kg7 10.Rf2 Rc8 11.Qg4[] Rd8 12.Ne4 Qa3 13.Qe6 Qe3 14.Rdxd2[] Qe1+ 15.Rf1 Qe3+ 16.Rdf2[]
+- (2.35 ++) Depth: 21 00:17:38 292mN, tb=3
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+[] Nxf7 6.Qh4[] d3 7.Nh5[] d2 8.Rd1 Bg6 9.Nxf6+[] Kg7 10.Rf2 Rc8 11.Qg4[] Rd8 12.Ne4 Qe7 13.Rdxd2 Rf8 14.Rf4 Ne5 15.Qg3 Rxf4 16.Qxf4
+- (2.38) Depth: 21 00:27:29 454mN, tb=22
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+[] Nxf7 6.Qh4[] d3 7.Nh5[] d2 8.Rd1 Bg6 9.Nxf6+[] Kg7 10.Rf2 Rc8 11.Qg4[] Rd8 12.Ne4 Qe7 13.Rdxd2[] Rf8 14.Rf4 Ne5 15.Qg3 Rc8 16.Nd6
+- (2.50 ++) Depth: 22 00:52:19 810mN, tb=141
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+[] Nxf7 6.Qh4[] d3 7.Nh5[] d2 8.Rd1 Bg6 9.Nxf6+[] Kg7 10.Rf2 Rc8 11.Qg4[] Rd8 12.Ne4 Qa3 13.Qe6 Qe3 14.Rdxd2 Qe1+ 15.Rf1 Qe3+ 16.Rdf2[]
+- (2.48) Depth: 22 00:54:34 853mN, tb=141
New game
r1b2r2/p5kp/1p1q1p2/4nP2/3p1N2/3B4/P2Q2PP/4RRK1 w - - 0 1
Analysis by Deep Rybka 4 x64 AN:
1.Be4 Rb8 2.Rc1 Kh8 3.Ne6
+/= (0.44 ++) Depth: 6 00:00:00 4kN
1.Be4 Rb8 2.Rd1 d3 3.Rfe1 Ng4 4.g3 Qd4+ 5.Kg2 Re8 6.Nh5+ Kf7
+/= (0.48) Depth: 6 00:00:00 11kN
1.Be4 Rb8 2.Rd1 d3 3.Qe1 Bd7 4.Nxd3 Qd4+ 5.Rf2 Ba4 6.Rdd2 Rbc8 7.Nxe5 Qxe5 8.Rf3
+/= (0.41) Depth: 7 00:00:00 19kN
1.Be4 Rb8 2.Rd1 Rd8 3.Nh5+ Kh8 4.Qh6 Qf8 5.Qxf8+ Rxf8 6.Rxd4 Ba6 7.Rc1 Rbc8 8.Rxc8
+/= (0.43) Depth: 8 00:00:00 45kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4
+/= (0.53 ++) Depth: 8 00:00:00 46kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4
+/= (0.68 ++) Depth: 8 00:00:00 47kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4 Qe8 5.Bxf7 Qxf7 6.Nxf6 Bb7 7.Re1 Rc8 8.Qh4 Qg7 9.g3
+/= (0.60) Depth: 8 00:00:00 53kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6 4.Rxe5 Rg8 5.Be4 Ba6 6.Re1 Bc4 7.Bf3 Bxa2 8.Rc1
+/- (0.72 ++) Depth: 9 00:00:00 86kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6 4.Rxe5 Rg8 5.Be4 Bxe4 6.Qxe4 Rg4 7.Re8+ Rg8 8.Rxg8+ Kxg8 9.Rf3 Qd7 10.a3 Kh8
+/- (0.83) Depth: 9 00:00:00 98kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Bc6 9.Rf4 Rg8 10.g3 Rf8 11.Kf2 Bd5
+/- (0.78) Depth: 10 00:00:00 168kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Rg8 9.g3 Rf8 10.Rf4 Bc6 11.Kf2 b5 12.Ke2 Kg8 13.Bc2 Bd5 14.Kd3 Rf7
+/- (0.86) Depth: 11 00:00:00 221kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Rg8 9.g3 Rf8 10.Rf4 Bc6 11.Kf2 b5 12.Ke2 Kg8 13.Bc2 Bd5 14.Kd3 Rf7
+/- (0.86) Depth: 12 00:00:01 326kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Rg8 9.g3 Rf8 10.Rf4 Bc6 11.Kf2 b5 12.Ke2 Kg8 13.Bc2 Bd5 14.Kd3 Rf7
+/- (0.86) Depth: 13 00:00:02 524kN
1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6 4.Rxe5 Re8 5.Rxe8+ Bxe8 6.Qxd6 Rxd6 7.Re1 Bd7 8.Kf2 Kg8 9.Re7 h6 10.Bc4+ Kf8 11.Rh7 d3 12.Rxh6 Rxh6
+/- (0.87) Depth: 14 00:00:06 1650kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qc6 4.Nd5 Qxd5 5.Qxe5+ Qxe5 6.Rxe5 Rae8 7.Rxe8 Rxe8 8.f6 Rg8 9.g3 Rf8 10.Rf4 Bd5 11.Rxd4 Bxa2 12.Rd7 Bg8 13.Rd6 Bf7 14.Ba6 Kg8 15.Rd7 Ra8 16.Kf2
+/- (0.87) Depth: 15 00:00:10 2746kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6 4.Rxe5 Rg8 5.g3 Bc6 6.Rfe1 Rgf8 7.Qd2 Bd7 8.Qf2 Bc6 9.Qe2 R6f7 10.Qb2 Rf6 11.Qc1 Rc8 12.Qf4 Rg8 13.Bc4 Rd8 14.Qh4 d3 15.Bxd3 Qd4+ 16.Qxd4
+/- (0.88) Depth: 16 00:00:24 6979kN
1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6 4.Rxe5 Rg8 5.g3 Bc6 6.Rfe1 Rgf8 7.Qd2 Bd7 8.Qf2 Bc6 9.Qc2 Rc8 10.Bc4 Qa3
+/- (0.88) Depth: 17 00:00:55 16286kN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 Rd8 7.Nh5
+/- (1.00 ++) Depth: 18 00:01:46 31060kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+
+/- (1.15 ++) Depth: 18 00:01:59 34316kN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4
+- (1.55 ++) Depth: 18 00:02:43 45448kN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Rd1 Bg6 9.Nxf6+ Kg7 10.Rf2 Qe5 11.Qb4 Rd8 12.Ng4 Qe6 13.h3 Bf5 14.Rfxd2 Rxd2 15.Rxd2 Kg6 16.Qf4
+- (1.98) Depth: 18 00:04:56 82687kN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Rd1 Bg6 9.Nxf6+ Kg7 10.Rf2 Qe5 11.Qb4 Rd8 12.Ng4 Qe6 13.h3 Bf5 14.Rfxd2 Rxd2 15.Rxd2 Kg6 16.Qf4
+- (2.10 ++) Depth: 19 00:06:23 106mN
1.Nh5+ Kh8 2.Qh6[] Rf7 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Rd1 Bg6 9.Nxf6+ Kg7 10.Rf2 Rc8 11.Qg4 Rd8 12.Ne4 Qa3 13.Qe6 Qe3 14.Rdxd2 Qe1+ 15.Rf1[] Qe3+ 16.Rdf2
+- (2.23) Depth: 19 00:08:45 145mN, tb=3
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 d2 8.Rd1 Bg6 9.Nxf6+ Kg7 10.Rf2 Rc8 11.Qg4 Rd8 12.Ne4 Qa3 13.Qe6 Qe3 14.Rdxd2 Qe1+ 15.Rf1[] Qe3+ 16.Rdf2
+- (2.23) Depth: 20 00:09:20 154mN, tb=3
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+[] Nxf7 6.Qh4[] d3 7.Nh5[] d2 8.Rd1 Bg6 9.Nxf6+[] Kg7 10.Rf2 Rc8 11.Qg4[] Rd8 12.Ne4 Qa3 13.Qe6 Qe3 14.Rdxd2[] Qe1+ 15.Rf1 Qe3+ 16.Rdf2[]
+- (2.35 ++) Depth: 21 00:17:38 292mN, tb=3
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+[] Nxf7 6.Qh4[] d3 7.Nh5[] d2 8.Rd1 Bg6 9.Nxf6+[] Kg7 10.Rf2 Rc8 11.Qg4[] Rd8 12.Ne4 Qe7 13.Rdxd2 Rf8 14.Rf4 Ne5 15.Qg3 Rxf4 16.Qxf4
+- (2.38) Depth: 21 00:27:29 454mN, tb=22
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+[] Nxf7 6.Qh4[] d3 7.Nh5[] d2 8.Rd1 Bg6 9.Nxf6+[] Kg7 10.Rf2 Rc8 11.Qg4[] Rd8 12.Ne4 Qe7 13.Rdxd2[] Rf8 14.Rf4 Ne5 15.Qg3 Rc8 16.Nd6
+- (2.50 ++) Depth: 22 00:52:19 810mN, tb=141
1.Nh5+ Kh8 2.Qh6[] Rf7[] 3.Nf4[] Kg8 4.Bc4[] Bxf5 5.Bxf7+[] Nxf7 6.Qh4[] d3 7.Nh5[] d2 8.Rd1 Bg6 9.Nxf6+[] Kg7 10.Rf2 Rc8 11.Qg4[] Rd8 12.Ne4 Qa3 13.Qe6 Qe3 14.Rdxd2 Qe1+ 15.Rf1 Qe3+ 16.Rdf2[]
+- (2.48) Depth: 22 00:54:34 853mN, tb=141
-
Eelco de Groot
- Posts: 4702
- Joined: Sun Mar 12, 2006 2:40 am
- Full name: Eelco de Groot
Re: Test Position: Punishing the stubborn
Yes, I think so too, Nh5+ is what I would playyanquis1972 wrote:an hour of R4 analysis reveals that Nh5+ may be just as powerful --
But Rybka is a bit stronger. Rainbow Serpent concurs with Rybka but not with such a high score. Rainbow Serpent 1.7.1 plays 1. Re4 though.r1b2r2/p5kp/1p1q1p2/4nP2/3p1N2/3B4/P2Q2PP/4RRK1 w - -
Engine: Rainbow Serpent 1.8(s)dc Build 009 (Athlon 2009 MHz, 256 MB)
by Tord Romstad, Marco Costalba, Joona Kiiski
1.00 0:00 -0.04 1.Be4 (863) 3
2.00 0:00 -0.12 1.Be4 Nc4 (1.292) 5
3.00 0:00 +0.36 1.Be4 Nc4 2.Qd1 (1.998) 9
4.00 0:00 +0.76 1.Be4 Bd7 2.Bxa8 Rxa8 3.Nh5+ Kg8 (3.699) 16
5.00 0:00 +0.84 1.Be4 Rb8 2.Nd5 Ba6 3.Rf2 (9.397) 40
6.00 0:00 +0.53-- 1.Be4 Rb8 (9.980) 42
6.00 0:00 +0.40 1.Be4 Rb8 2.Rd1 Ba6 3.Ne6+ Kg8
4.Nxf8 Bxf1 5.Kxf1 Rxf8 6.Qxd4 (16.467) 65
6.00 0:00 +0.56 1.Nh5+ Kh8 2.Qh6 Qe7 3.Re4 Bb7
4.Rxd4 Rg8 (17.152) 68
7.00 0:00 +0.88++ 1.Nh5+ Kh8 (23.068) 86
7.00 0:00 +1.01 1.Nh5+ Kg8 2.Qh6 Qe7 3.Re4 Bd7
4.Bc4+ Kh8 5.Rxd4 Nxc4 6.Rxc4 (31.800) 113
8.00 0:00 +1.61++ 1.Nh5+ Kg8 (83.471) 222
8.00 0:00 +1.73 1.Nh5+ Kf7 2.Qf4 Bd7 3.Re4 Qe7
4.Bc4+ Ke8 5.Nxf6+ Rxf6 6.Rxe5 (100.836) 248
9.00 0:00 +0.76-- 1.Nh5+ Kh8 (257.280) 373
9.00 0:00 +1.01 1.Be4 Rb8 2.Rd1 Ba6 3.Ne6+ Kh8
4.Rfe1 Rf7 5.Qxd4 Qxd4+ 6.Rxd4 Rg8 (279.379) 380
10.00 0:00 +0.40 1.Be4 Rb8 2.Rd1 d3 3.Kh1 Kh8 4.Bxd3 Bb7
5.Qe2 Qc6 6.Bb5 Qe4 (427.190) 434
11.01 0:01 +0.16 1.Be4 Rb8 2.Rd1 d3 3.Bxd3 Nxd3
4.Nxd3 Qd4+ 5.Kh1 Ba6 6.Rf3 Rbd8
7.Rh3 Kh8 8.Qh6 Qd7 9.Rg3 Bc4 (732.823) 483
11.02 0:01 +0.56 1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6
4.Rxe5 Rg8 5.Rf2 Rgf8 6.Re1 Qxf4
7.Rxf4 Rg8 (776.872) 482
12.01 0:02 +0.48 1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6
4.Rxe5 Rg8 5.Rf2 Bc6 6.Rc2 Rg7 7.a3 a5
8.Kh1 Kg8 9.Kg1 (1.023.841) 500
13.01 0:02 +0.64++ 1.Nh5+ Kh8 (1.501.427) 519
13.01 0:03 +0.80++ 1.Nh5+ Kh8 (1.590.857) 524
13.01 0:03 +0.88 1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qxf6
4.Qxe5 Qxe5 5.Rxe5 Rg8 6.Re2 Rac8
7.g3 Rc7 8.f6 Bd5 9.Rf4 Rc1+ 10.Kf2 (1.699.634) 530
14.01 0:04 +1.09 1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qxf6
4.Qxe5 Qxe5 5.Rxe5 Rf7 6.g4 Rd8
7.Rf4 Kg8 8.g5 Rc7 9.Kf2 Rc3 10.Be4 Bxe4
11.Rfxe4 Rc2+ 12.Re2 (2.249.444) 545
15.01 0:07 +1.41 1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Qxf6
4.Qxe5 Qxe5 5.Rxe5 Rf7 6.g4 Rd8 7.g5 Rc7
8.f6 Kg8 9.Kf2 Rc3 10.Ke2 Bg2 11.Rg1 Bd5
12.Re7 (4.481.242) 585
16.01 0:08 +1.41 1.Nh5+ Kh8 2.Qf4 Bb7 3.Nxf6 Rxf6
4.Qxe5 Bc6 5.Qxd6 Rxd6 6.f6 Rg8 7.g3 Rf8
8.Re7 Rdxf6 9.Rxf6 Rxf6 10.Rxh7+ Kg8
11.Rxa7 Kf8 12.Bc4 Rf3 13.Rc7 Be8
14.g4 (5.231.989) 594
17.01 0:11 +1.25-- 1.Nh5+ Kh8 (6.934.296) 602
17.01 0:11 +1.09-- 1.Nh5+ Kh8 (7.097.494) 602
17.01 0:13 +1.21 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 Rg8 5.Qxd6 Rxd6 6.Rf4 Rg7
7.g3 h5 8.Kf2 Rf6 9.Rxd4 Rgf7 10.Rh4 Bxf5
11.Rxh5+ Kg7 12.Bxf5 Rxf5+ 13.Rxf5 Rxf5+
14.Ke3 (7.942.605) 604
18.01 0:22 +1.01-- 1.Nh5+ Kh8 (14.119.452) 624
18.01 0:23 +1.13 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 Re8 5.Qxd6 Rxd6 6.Rxe8+ Bxe8
7.Re1 Bc6 8.g4 Rh6 9.Re7 Rh3 10.Bc2 d3
11.Bd1 Bf3 12.Re3 Bxd1 13.Rxh3 Bxg4
14.Rxd3 (14.693.588) 624
19.01 0:28 +1.33++ 1.Nh5+ Kh8 (17.967.742) 626
19.01 0:30 +1.17 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 h6 5.Qxd6 Rxd6 6.h3 Rg8 7.Kh2 h5
8.g3 Rg7 9.Rf4 Bc6 10.Rh4 Rg5 11.g4 Kg7
12.Kg3 Kf6 13.Rxh5 Rxh5 14.gxh5 (19.281.528) 628
20.01 0:38 +1.25++ 1.Nh5+ Kh8 (23.949.468) 627
20.01 0:40 +1.33++ 1.Nh5+ Kh8 (25.495.777) 626
20.01 0:41 +1.09-- 1.Nh5+ Kh8 (26.027.257) 626
20.01 0:48 +1.41 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 Re8 5.Qxd6 Rxd6 6.Rxe8+ Bxe8
7.Re1 Bc6 8.Re7 Rd7 9.Rxd7 Bxd7
10.g4 Bc6 11.Kf2 Bd5 12.a3 Kg8 13.g5 h6
14.h4 (30.190.654) 625
21.01 0:59 +1.45 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 Rg8 5.Qxd6 Rxd6 6.Rf4 a6
7.Kf2 b5 8.g3 Re8 9.g4 Rxe1 10.Kxe1 Be8
11.g5 Bf7 12.Re4 h6 13.h4 hxg5
14.Re7 (37.196.165) 629
22.01 1:08 +1.29-- 1.Nh5+ Kh8 (42.910.790) 630
22.01 1:13 +1.13-- 1.Nh5+ Kh8 (46.610.139) 630
22.01 1:37 +1.45 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 Rg8 5.Qxd6 Rxd6 6.Rf4 h6
7.Kf2 a5 8.Re7 Rg7 9.f6 (61.992.969) 635
23.01 1:46 +1.37-- 1.Nh5+ Kh8 (67.921.154) 636
23.01 1:55 +1.45 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 Rg8 5.Qxd6 Rxd6 6.Rf4 a6
7.Kf2 Bb5 8.Bxb5 axb5 9.g4 d3 10.Ke3 Kg7
11.Re4 Kf6 12.Kd2 Ra8 13.Re6+ Rxe6
14.Rxe6+ (72.808.709) 633
24.01 2:06 +1.37-- 1.Nh5+ Kh8 (80.312.177) 634
24.01 2:22 +1.29-- 1.Nh5+ Kh8 (90.444.610) 635
24.01 2:30 +1.13-- 1.Nh5+ Kh8 (95.689.341) 636
24.01 3:19 +1.25 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 a6 5.g4 Bb5 6.Bxb5 axb5 7.Rf2 Rg8
8.Qxd6 Rxd6 9.h3 h5 10.Re4 hxg4
11.hxg4 Kg7 12.Rd2 Rgd8 13.Kf2 Kf6
14.Kf3 (127.138.266) 636
25.01 4:28 +1.37 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 a6 5.g4 Bb5 6.Bxb5 axb5 7.Rf2 Rg8
8.Qxd6 Rxd6 9.h3 h5 10.Re4 hxg4
11.hxg4 Kg7 12.Rd2 Rgd8 13.Kf2 Kf6
14.Kf3 (170.172.663) 634
26.01 4:47 +1.13-- 1.Nh5+ Kh8 (182.299.238) 633
26.01 5:55 +1.17 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 a6 5.g4 Bb5 6.Bxb5 axb5 7.Rf2 Rg8
8.Qxd6 Rxd6 9.h3 h5 10.Re4 hxg4
11.hxg4 Kg7 12.Rd2 Rgd8 13.Kf2 Kf6
14.Kf3 (224.617.324) 632
27.01 13:17 +1.17 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 a6 5.g4 Bb5 6.Bxb5 axb5 7.Rf2 Rg8
8.Qxd6 Rxd6 9.h3 h5 10.Re4 Kh7
11.Rd2 Rgd8 12.Kg2 Kh6 13.Kf3 Kg5
14.Rd3 (510.527.912) 640
28.01 19:12 +1.21 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 a6 5.g4 Bb5 6.Bxb5 axb5 7.Rf2 Rg8
8.Qxd6 Rxd6 9.h3 h5 10.Re4 Kh7
11.Rd2 Rgd8 12.Kg2 Kh6 13.Kf3 Kg5
14.Rd3 (739.609.888) 641
29.01 22:35 +1.13-- 1.Nh5+ Kh8 (870.828.198) 642
29.01 26:04 +1.13 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Nf3+ (1.000.469.343) 639
30.01 33:49 +1.25++ 1.Nh5+ Kh8 (1.291.872.382) 636
30.01 39:46 +1.17 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 a6 5.g4 Bb5 6.Bxb5 axb5 7.Rf2 Rg8
8.Qxd6 Rxd6 9.h3 h5 10.Re4 Kh7
11.Rd2 Rgd8 12.Kg2 Kh6 13.Kf3 Kg5
14.Rd3 (1.529.486.498) 640
31.01 72:55 +1.25++ 1.Nh5+ Kh8 (2.798.561.115) 639
31.01 84:44 +1.33++ 1.Nh5+ Kh8 (3.248.916.530) 638
31.01 101:46 +1.17 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 a6 5.h3 h5 6.Qe4 Raf8 7.Qf4 Qxf4
8.Rxf4 Bb5 9.Bxb5 axb5 10.g4 Rd6
11.Kf2 d3 12.Rd1 d2 13.Rb4 Kg7
14.Rb2 (3.904.269.006) 639
32.01 134:53 +1.09-- 1.Nh5+ Kh8 (5.237.566.353) 647
32.01 168:40 +1.25++ 1.Nh5+ (6.530.484.357) 645
32.01 187:29 +1.33++ 1.Nh5+ Kh8 (7.235.532.185) 643
32.01 221:52 +1.33 1.Nh5+ Kh8 2.Qf4 Bd7 3.Nxf6 Rxf6
4.Qxe5 Rg8 5.g3 a6 6.Re2 Bb5 7.Bxb5 axb5
8.Qxb5 d3 9.Re3 Rd8 10.Rd1 d2 11.Kg2 h5
12.Re2 Kg7 13.a4 Qd5+ 14.Qxd5 (8.625.647.909) 647
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
-
Albert Silver
- Posts: 3026
- Joined: Wed Mar 08, 2006 9:57 pm
- Location: Rio de Janeiro, Brazil
Re: Test Position: Punishing the stubborn
Nice one by Junior. Yes, engines all failed here too, but if you feed them the first move their evaluation very quickly goes through the roof.yanquis1972 wrote:great position albert! very current & shames todays top engines, at least at low to moderate depths. after 5 minutes using all 4 cores rybka does not find the best move on my machine. ill give little brother dynamic a shot at it.
...but for whatever reason i first went with junior, & with the same specifications as rybka the move is found in under a minute! perhaps an example of extreme mpv search luck, or maybe junior's just that good.
Analysis by Deep Junior 11.2 UCI:
1.Nh5+ Kh8 2.Qh6 Rf7 3.Bc4 Rc7 4.Bb3
+/- (0.75) Depth: 6 00:00:00 18kN
1.Nh5+
+/- (1.23) Depth: 9 00:00:00 92kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4 Qe7 5.Bxf7 Qxf7 6.Nxf6
+- (1.72) Depth: 9 00:00:00 251kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Rxe5 Qxe5 4.Bc4 Qe7 5.Bxf7 Qxf7 6.Rf4 d3 7.Nxf6 Ba6
+- (1.64) Depth: 12 00:00:00 3617kN
1.Nh5+ Kh8
+/- (1.16) Depth: 15 00:00:03 32712kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 Bg6 8.Nxf6+ Kh8 9.Ne8 Qc5+ 10.Kh1
+/- (1.04) Depth: 17 00:00:11 94276kN
1.Nh5+ Kh8 2.Qh6 Rf7 3.Nf4 Kg8 4.Bc4 Bxf5 5.Bxf7+ Nxf7 6.Qh4 d3 7.Nh5 Bg6 8.Nxf6+ Kg7 9.Ne8+ Rxe8 10.Rxe8
+/- (1.07) Depth: 19 00:00:30 250mN
1.Rxe5
+- (1.52) Depth: 19 00:00:55 460mN
1.Rxe5 fxe5 2.f6+ Kf7 3.Bc4+ Ke8 4.f7+ Kd8 5.Nd5 Be6 6.Qh6 d3 7.Ne3 Kd7 8.Rf6 Qd4 9.Bxe6+ Kc7 10.Bd5
+/- (1.32) Depth: 20 00:04:16 2372mN
1.Rxe5 fxe5 2.f6+ Kf7 3.Bc4+ Ke8 4.f7+ Kd8 5.Nd5 Be6 6.Qh6 d3 7.Ne3 Kc7 8.Bxe6 Rad8 9.Kh1 d2 10.Nd5+
+- (1.51) Depth: 21 00:05:30 3051mN
"Tactics are the bricks and sticks that make up a game, but positional play is the architectural blueprint."