Speaking of checkmate verifications...

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Dann Corbit
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Joined: Wed Mar 08, 2006 8:57 pm
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Speaking of checkmate verifications...

Post by Dann Corbit »

I have a small set where the solutions found are better than the proposed solutions:

[d]4R3/8/5p2/2P2N2/5P2/B2pNkPp/1K1prn1p/3BbRnr w - - acd 21; acs 470; bm Rd8; c2 "#11; 00:00 @ C2/R-6/K2/P1/X1;"; ce 32748; dm 10; id "ChestDB.4434"; pm Rd8; pv Rd8 Ke4 c6 Rxe3 Rxf2 Bxf2 Nd6+ Kd5 c7 Re6 c8Q Bd4+ Kb3 Rxd6 Qb7+ Ke6 Rxd6+ Kf5 Qh7+;

[d]1r2brk1/pp3p1p/3p1Q2/2pBp3/P2nP3/2NP2P1/1qP2R1P/5RK1 w - - acd 21; acs 468; bm Nb5; c2 "#12; 00:13 @ C0/R-3/K3/P9/X38;"; ce 32748; dm 10; id "ChestDB.4930"; pm Nb5; pv Nb5 Rc8 Kh1 Qa1 Rxa1 Bxb5 Bxf7+ Rxf7 Qxf7+ Kh8 Qf6+ Kg8 Qg5+ Kh8 Rf7 Ne6 Qh6 Kg8 Qxh7+;

[d]8/1p3N1R/1p6/bP2p1p1/rkPpP1K1/p2P2P1/P2P4/8 w - - acd 23; acs 29; bm Nxe5; c2 "#12; 00:00 @ C2/R0/K2/P1/X1;"; ce 32746; dm 11; id "yacpdb id 192778"; pm Nxe5; pv Nxe5 Kc5 Nd7+ Kd6 Kf5 Rxc4 dxc4 g4 e5+ Kc7 Nf6+ Kb8 Rh8+ Ka7 Nd5 Bb4 Nc7 Bf8 Rxf8 d3 Ra8+;

[d]r3k2r/1q1nbp1p/p2pp1p1/1p2P3/1P1NN3/P6Q/2P3PP/4RR1K w - - acd 25; acs 569; bm Rxf7; c2 "#14;"; ce 32744; dm 12; id "ChestDB.6534"; pm Rxf7; pv Rxf7 Kd8 Rxe7 Ra7 Nxe6+ Kc8 Qxh7 Rd8 Nxd6+ Kb8 Nxd8 Qc8 Nxc8 Kxc8 Ne6 Rc7 Rd1 Kb8 Rexd7 Rxc2 Ra7 Kc8 Qb7+;

[d]4KB2/1PpB4/2P3N1/p1pk2pp/3b4/2pPpN2/b1P1P2P/qr5n w - - acd 27; acs 520; bm h4; c2 "#15; --:-- @ C0/R-4/K3/P9/X35;"; ce 32742; dm 13; id "ChestDB.6087"; pm h4; pv h4 Bf6 hxg5 Rb4 gxf6 Qg1 Ne7+ Kd6 f7 Bxf7+ Kxf7 Qg5 Nxg5 Rf4+ Kg7 a4 b8Q Ng3 Ng6+ Rxf8 Qxf8+ Kd5 Qf7+ Kd6 Qe6+;

[d]3R1nqb/B2n1prb/4pPp1/1p1kN1P1/1P2rP1K/2p5/2P1P3/7B w - - acd 27; acs 248; bm e3; c2 "#23; 00:00 @ C2/R0/K2/P1/X1;"; ce 32742; dm 13; id "yacpdb id 67687"; pm e3; pv e3 Kd6 Bb8+ Kd5 Nd3 Kc6 Bxe4+ Kb6 Nc5 e5 fxe5 Nxb8 Rxb8+ Kc7 Na6+ Kd7 Rb7+ Kc8 Rc7+ Kd8 Bb7 Ne6 Rc8+ Kd7 Nb8+;

[d]8/1p5p/1pp3p1/1k6/1p5p/1P5P/6pP/Q5Kb w - - acd 31; acs 60; bm Qg7; c2 "#19; --:-- @ C2/R0/K4/P4/X7;"; ce 32738; dm 15; id "yacpdb id 344422"; pm Qg7; pv Qg7 Ka6 Qxh7 g5 Qg7 Ka7 Qxg5 c5 Qxh4 b5 Qf2 Kb6 h4 Kc6 h5 c4 h6 cxb3 h7 b2 Qxb2 Kd5 h8=Q Kc6 Qbf6+ Kd5 Qd4+ Ke6 Qhf6+;

[d]1n1k4/3pN1N1/p1pP4/P1P1p3/KBP1p3/P1P1P3/8/8 w - - acd 35; acs 23; bm Ng6; c2 "#18; 00:15 @ C2/R0/K3/P1/X2;"; ce 32734; dm 17; id "yacpdb id 188637"; pm Ng6; pv Ng6 Kc8 Nh5 Kb7 Nxe5 Kc8 Nf6 Kd8 Nfxd7 Nxd7 Nxc6+ Ke8 Ne7 Nxc5+ Bxc5 Kd7 Ng6 Ke6 Kb4 Kd7 Nf8+ Ke8 d7+ Kd8 Bb6+ Ke7 d8=Q+ Kf7 Qd7+ Kg8 Bc5 Kh8 Qh7+;

[d]3q3r/4kp1n/1P2P1pp/Q2Pp3/K3B3/1PP4P/1P2r3/4B3 w - - acd 47; acs 375; bm Qa7+; c2 "#28;"; ce 32722; dm 23; id "ChestDB.5846"; pm Qa7+; pv Qa7+ Kd6 c4 Kc5 b7+ Qb6 Bb4+ Kd4 Qxb6+ Kxe4 exf7 Rg2 b8Q Rxb8 Qxb8 Rf2 Qg8 Rxf7 Qxf7 Ng5 Qxg6+ Kf3 Qxh6 Ne4 Qh5+ Kf2 Qf5+ Ke3 Qg4 Nf6 Qg5+ Ke2 Qxf6 Ke3 Qf1 Ke4 Qf2 Kd3 d6 Ke4 d7 Kd3 d8Q+ Ke4 Qd5+;

See also:
http://rybkaforum.net/cgi-bin/rybkaforu ... pid=573777

because you cannot attach files here.

If anyone can find better solutions for the 137 mates that need work, I would be keen to know it.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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BBauer
Posts: 658
Joined: Wed Mar 08, 2006 8:58 pm

Re: Speaking of checkmate verifications...

Post by BBauer »

For the first position
[d]4R3/8/5p2/2P2N2/5P2/B2pNkPp/1K1prn1p/3BbRnr w - - acd 21; acs 470; bm Rd8; c2 "#11; 00:00 @ C2/R-6/K2/P1/X1;"; ce 32748; dm 10; id "ChestDB.4434"; pm Rd8; pv Rd8 Ke4 c6 Rxe3 Rxf2 Bxf2 Nd6+ Kd5 c7 Re6 c8Q Bd4+ Kb3 Rxd6 Qb7+ Ke6 Rxd6+ Kf5 Qh7+;

I got a #10.
39/20 00:14 48.698k 3.332k +M10 Re8-d8 Kf3-e4 c5-c6 Nf2xd1+ Ne3xd1 Ke4xf5 c6-c7 Kf5-g6 c7-c8Q Re2-e8 Qc8-g4+ Kg6-h7 Qg4-h5+ Kh7-g7 Rd8-d7+ Re8-e7 Rd7xe7+ Kg7-f8 Qh5-f7+

Kind gerards
Bernhard
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BBauer
Posts: 658
Joined: Wed Mar 08, 2006 8:58 pm

Re: Speaking of checkmate verifications...

Post by BBauer »

For the second position
1r2brk1/pp3p1p/3p1Q2/2pBp3/P2nP3/2NP2P1/1qP2R1P/5RK1 w - - acd 21; acs 468; bm Nb5; c2 "#12; 00:13 @ C0/R-3/K3/P9/X38;";
[d]1r2brk1/pp3p1p/3p1Q2/2pBp3/P2nP3/2NP2P1/1qP2R1P/5RK1 w - - 0 1
I got a #11.
31/39 27:18 5.166.425k 3.152k +M11 Nc3-b5 c5-c4 Kg1-h1 Rb8-a8 Nb5xd6 Qb2-b6 Qf6-g5+ Kg8-h8 Rf2xf7 Be8xf7 Qg5-f6+ Kh8-g8 Bd5xf7+ Rf8xf7 Qf6xf7+ Kg8-h8 Qf7-f6+ Kh8-g8 Qf6-g5+ Kg8-h8 Nd6-f7+

Kind regards
Bernhard
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Dann Corbit
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Location: Redmond, WA USA

Re: Speaking of checkmate verifications...

Post by Dann Corbit »

Yes, so did I.
Look at the record itself.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Dann Corbit
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Re: Speaking of checkmate verifications...

Post by Dann Corbit »

I got mate in 10. The listed positions are positions where the solution I found was better than the proposed position.

The ones that I am interested in are those found at the Rybka site in a file I attached.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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BBauer
Posts: 658
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Re: Speaking of checkmate verifications...

Post by BBauer »

For the 3. position
[d]8/1p3N1R/1p6/bP2p1p1/rkPpP1K1/p2P2P1/P2P4/8 w - - acd 23; acs 29; bm Nxe5; c2 "#12; 00:00 @ C2/R0/K2/P1/X1;"; ce 32746; dm 11; id "yacpdb id 192778"; pm Nxe5; pv Nxe5 Kc5 Nd7+ Kd6 Kf5 Rxc4 dxc4 g4 e5+ Kc7 Nf6+ Kb8 Rh8+ Ka7 Nd5 Bb4 Nc7 Bf8 Rxf8 d3 Ra8+;
I got a #11.

51/22 00:28 86.593k 3.092k +M11 Nf7xe5 Kb4-c5 Ne5-d7+ Kc5-d6 Kg4-f5 Ra4-b4 e4-e5+ Kd6-c7 Nd7-f6+ Kc7-b8 Rh7-h8+ Kb8-a7 Nf6-d5 Rb4xb5 c4xb5 Ba5-b4 Nd5-c7 Bb4-f8 Rh8xf8 g5-g4 Rf8-a8+
Kind regards
Bernhard
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Ignacio
Posts: 177
Joined: Wed Mar 08, 2006 8:15 pm

Re: Speaking of checkmate verifications...

Post by Ignacio »

Dann, you can try Spark 0.4 for your "mates that need work.epd".

I have get with Spark 0.4:

1: FEN: 8/8/B7/7N/8/p7/Pp1p4/1K1k2B1 w - - 0 1
21/33 00:38 665.205.707 17.299.188 +M13 Ch5-f4 Rd1-e1 Cf4-g2+ Re1-d1 Cg2-e3+ Rd1-e1 Ce3-c2+ Re1-d1 Cc2xa3 Rd1-e1 Ca3-c2+ Re1-d1 Cc2-e3+ Rd1-e1 Ce3-g2+ Re1-d1 Cg2-f4 Rd1-e1 Rb1xb2 d2-d1C+ Rb2-c1 Cd1-e3 Aa6-d3 Ce3-c4 Cf4-g2+

2: FEN: 8/8/2R5/1p2qp1k/1P2r3/2PQ2P1/5K2/8 w - - 0 1
20/52 00:24 294.557.005 11.946.666 +M15 Dd3-d1+ Rh5-g5 Dd1-d2+ Te4-f4+ g3xf4+ De5xf4+ Dd2xf4+ Rg5xf4 c3-c4 b5xc4 Tc6xc4+ Rf4-e5 b4-b5 Re5-d5 Tc4-c8 Rd5-d4 b5-b6 Rd4-d5 b6-b7 Rd5-e6 b7-b8D Re6-d7 Tc8-c2 f5-f4 Db8-b6 Rd7-e8 Db6-b7 Re8-d8 Tc2-c8+

3: FEN: k7/Pp1b3p/1K6/7P/8/8/8/7N w - - 0 1
34/44 00:04 69.732.769 16.774.782 +M17 h5-h6 Ad7-g4 Ch1-f2 Ag4-f5 Cf2-d1 Af5-e4 Cd1-c3 Ae4-c6 Cc3-e2 Ac6-d5 Ce2-f4 Ad5-f7 Cf4-d3 Af7-e6 Cd3-c5 Ae6-f5 Cc5xb7 Af5-h3 Cb7-c5 Ah3-c8 Cc5-e4 Ac8-d7 Ce4-f6 Ad7-c6 Cf6xh7 Ac6-b7 Ch7-f6 Ab7-c6 h6-h7 Ac6-a4 h7-h8D+ Aa4-e8 Dh8xe8+

Best.
Ignacio
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Dann Corbit
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Re: Speaking of checkmate verifications...

Post by Dann Corbit »

Thank you for the suggestion.
I may try a spark run this weekend.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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Dann Corbit
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Re: Speaking of checkmate verifications...

Post by Dann Corbit »

Spark seems to be doing quite well:

Code: Select all

8/8/B7/7N/8/p7/Pp1p4/1K1k2B1 w - - acd 29/33; acs 1354 ; acn 46600076070; ce 32742 ; bm Nf4; pv Nf4 Ke1 Ng2+ Kd1 Ne3+ Ke1 Nc2+ Kd1 Nxa3 Ke1 Nc2+ Kd1 Ne3+ Ke1 Ng2+ Kd1 Nf4 Ke1 Kxb2 d1N+ Kc1 Ne3 Bd3 Nc4 Ng2+;
3K4/6p1/3B1pP1/1p1B1P2/1P3P1p/8/4p1pp/4Nb1k w - - acd 30/79+; acs 1216 ; acn 23490182899; ce 3533 ; bm Ke7; pv Ke7 h3;
8/8/2R5/1p2qp1k/1P2r3/2PQ2P1/5K2/8 w - - acd 18/53; acs 981 ; acn 16857960886; ce 32738 ; bm Qd1+; pv Qd1+ Kg5 Qd2+ Rf4+ Qxf4+ Qxf4+ gxf4+ Kxf4 c4 bxc4 Rxc4+ Ke5 b5 f4 Rc1 Kd4 b6 f3 b7 Ke4 b8Q Kd5 Kxf3 Ke6 Rc6+ Kf7 Qb7+ Kg8 Rc8+;
8/2p5/7p/2pR3r/8/6R1/2P4r/4K2k w - - acd 35/77; acs 828 ; acn 16779601418; ce 0 ; bm Kf1; pv Kf1 R2h4 Rg1+ Kh2 Rd2+ Kh3 Rd3+ Kh2 Rg2+ Kh1 Rg1+ Kh2;
8/5p1B/2b1pP2/3pP3/2pP4/KpB5/pP6/k7 w - - acd 40/78+; acs 653 ; acn 11522962117; ce 3016 ; bm Kb4; pv Kb4 Bd7;
8/1R4NP/8/5PP1/P7/2rK2pP/6R1/k7 w - - acd 30/74+; acs 1124 ; acn 19927768699; ce 5359 ; bm Ke4; pv Ke4 Rc4+;
8/5N2/2K2k2/6p1/2P3P1/8/7P/8 w - - acd 120/24; acs 83 ; acn 2191031860; ce 32748 ; bm Kd7; pv Kd7 Kxf7 c5 Kf6 Kd6 Kg7 Ke7 Kg6 c6 Kg7 c7 Kg6 c8Q Kg7 Qc7 Kh6 Kf8 Kg6 Qg7+;
6N1/8/5p2/5p2/7k/5K2/6P1/6N1 w - - acd 29/24; acs 1298 ; acn 41378620248; ce 32744 ; bm Kf4; pv Kf4 Kh5 Kxf5 Kh4 Ne2 Kh5 Ng3+ Kh4 Kf4 f5 Ne2 Kh5 Kxf5 Kh4 Kg6 Kg4 Nf6+ Kh4 Ne4 Kg4 Nf2+ Kh4 g3+;
2k5/1p1r4/1Kp1Q2p/8/8/8/8/8 w - - acd 21/43; acs 1474 ; acn 33931202992; ce 32738 ; bm Qf5; pv Qf5 h5 Qf8+ Rd8 Qf7 Rd7 Qf5 h4 Qf8+ Rd8 Qf7 Rd7 Qf5 h3 Qf8+ Rd8 Qg7 Rd7 Qh8+ Rd8 Qxh3+ Rd7 Qf5 c5 Qxc5+ Kb8 Qf8+ Rd8 Qxd8+;
8/p7/7K/2p5/p1p5/8/2R5/7k w - - acd 33/36; acs 1156 ; acn 34804469580; ce 32734 ; bm Kg5; pv Kg5 Kg1 Kf4 Kf1 Ke3 a3 Rxc4 a2 Ra4 Kg2 Rxa2+ Kg3 Rc2 c4 Rxc4 Kg2 Rg4+ Kf1 Ra4 Kg2 Rxa7 Kg3 Ra4 Kg2 Rg4+ Kh3 Kf3 Kh2 Rh4+ Kg1 Rh5 Kf1 Rh1+;
It will run over the weekend. Looks like a good percentage of the remaining trouble makers will meet their bitter end.

For contrast, here is a houdini run I just started:

Code: Select all

8/8/B7/7N/8/p7/Pp1p4/1K1k2B1 w - - acd 85/66; acs 1344 ; acn 10919586660; ce 32740 ; bm Nf4; pv Nf4 Ke1 Ng2+ Kd1 Ne3+ Ke1 Nc2+ Kd1 Nxa3 Ke1 Nc2+ Kd1 Ne3+ Ke1 Ng2+ Kd1 Nf4 Ke1 Kxb2 d1N+ Kc1 Ne3 Bd3 Ng2 Nh3 Nh4 Bf2+;
3K4/6p1/3B1pP1/1p1B1P2/1P3P1p/8/4p1pp/4Nb1k w - - acd 56/65; acs 1339 ; acn 9109173590; ce 32738 ; bm Ke7; pv Ke7 h3 Bc6 Kg1 Bc5+ Kh1 Nd3 e1R+ Nxe1 Be2 Kf8 Bh5 Kxg7 Be2 Kxf6 Bh5 g7 Bf7 Nf3 Bb3 Nd2 Bd5 Nf1 gxf1Q Bxd5+ Qg2 g8Q Qf3 Bxf3+;
8/8/2R5/1p2qp1k/1P2r3/2PQ2P1/5K2/8 w - - acd 49/75; acs 1416 ; acn 10502257977; ce 32734 ; bm Qd1+; pv Qd1+ Kg5 Qd2+ Rf4+ Kg1 Kh5 Qh2+ Kg5 gxf4+ Qxf4 Rg6+ Kxg6 Qxf4 Kf7 Kf2 Ke6 Qd4 Ke7 Ke3 Ke6 Kf4 Ke7 Qd5 Kf6 Qd6+ Kg7 Kg5 Kf7 Qd7+ Kf8 Kg6 f4 Qd8+;
8/2p5/7p/2pR3r/8/6R1/2P4r/4K2k w - - acd 66/84; acs 1219 ; acn 9991921717; ce 0 ; bm Kf1; pv Kf1 R2h4 Rg1+ Kh2 Rg2+ Kh1 Rg1+;
8/5p1B/2b1pP2/3pP3/2pP4/KpB5/pP6/k7 w - - acd 54/93; acs 1345 ; acn 9724367467; ce 14999 ; bm Kb4; pv Kb4 Bb5 Kc5 Be8 Kd6 Bb5 Ke7 Bc6 Kxf7 Bd7 Kf8 Be8 Kg7 Bf7 Bg6 Bxg6 Kxg6 Kb1 f7 a1B f8Q Bxb2 Bxb2 Kxb2 Qf2+ Kb1 Qe1+ Kc2 Qe2+ Kb1 Qd1+ Kb2 Qd2+ Ka1 Kf7 b2 Kxe6 b1Q Qa5+ Kb2 Qb4+ Kc1 Qxb1+ Kxb1;
8/1R4NP/8/5PP1/P7/2rK2pP/6R1/k7 w - - acd 60/98; acs 1462 ; acn 12666892904; ce 32700 ; bm Kd2; pv Kd2 Rd3+ Ke1 Rd1+ Ke2 Re1+ Kf3 Re3+ Kg4 Re4+ Kxg3 Re3+ Kf2 Rf3+ Ke1 Rf1+ Kd2 Rd1+ Kc3 Rd3+ Kb4 Rd4+ Kb5 Rd5+ Ka6 Ra5+ Kb6 Ra6+ Kb5 Ra5+ Kc6 Rc5+ Kd7 Rd5+ Ke7 Re5+ Ne6 Rxe6+ Kd8 Re8+ Kc7 Rc8+ Kb6 Rc6+ Ka5 Ra6+ Kb5 Ra5+ Kc6 Rc5+ Kd7 Rd5+ Ke7 Re5+ Kf7 Rxf5+ Kg7 Rc5 h8Q Rc3;
8/5N2/2K2k2/6p1/2P3P1/8/7P/8 w - - acd 75/104; acs 1380 ; acn 4505747836; ce 14999 ; bm Nxg5; pv Nxg5;
I also have 4 other nodes running Asmfish, Matefish, Shredder, and I forget the last one.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
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MOBMAT
Posts: 385
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Re: Speaking of checkmate verifications...

Post by MOBMAT »

BBauer wrote: ↑Thu Jul 13, 2017 7:52 pm For the first position
[d]4R3/8/5p2/2P2N2/5P2/B2pNkPp/1K1prn1p/3BbRnr w - - acd 21; acs 470; bm Rd8; c2 "#11; 00:00 @ C2/R-6/K2/P1/X1;"; ce 32748; dm 10; id "ChestDB.4434"; pm Rd8; pv Rd8 Ke4 c6 Rxe3 Rxf2 Bxf2 Nd6+ Kd5 c7 Re6 c8Q Bd4+ Kb3 Rxd6 Qb7+ Ke6 Rxd6+ Kf5 Qh7+;

I got a #10.
39/20 00:14 48.698k 3.332k +M10 Re8-d8 Kf3-e4 c5-c6 Nf2xd1+ Ne3xd1 Ke4xf5 c6-c7 Kf5-g6 c7-c8Q Re2-e8 Qc8-g4+ Kg6-h7 Qg4-h5+ Kh7-g7 Rd8-d7+ Re8-e7 Rd7xe7+ Kg7-f8 Qh5-f7+

Kind gerards
Bernhard
Not only is is M10, it is a dual!!

Code: Select all

FEN: 4R3/8/5p2/2P2N2/5P2/B2pNkPp/1K1prn1p/3BbRnr w - - 0 1

Stockfish DEV 20071122:
...
 55	00:02	 23,055k	10,210k	+M20	1.Rc8 Ke4 2.Re8+ Kf3 3.Rd8 Ke4 4.Rd4+ Kf3 5.Rxd3 Ke4 6.Rd4+ Kf3 7.Rd6 Ke4 8.Re6+ Kf3 9.Rxf6 Ke4 10.Re6+ Kf3 11.Ra6 Ke4 12.Ra4+ Kf3 13.Bb4 Ke4 14.Bc3+ Kf3 15.Ra6 Ke4 16.Bc2+ Kf3 17.Nd4+ Kxg3 18.Rg6+ Kxf4 19.Nd5+ Ke5 20.Rg5+
 55	00:02	 23,055k	10,210k	+M20	1.Rh8 Ke4 2.Re8+ Kf3 3.Rd8 Ke4 4.Rd4+ Kf3 5.Rxd3 Ke4 6.Rd4+ Kf3 7.Rd6 Ke4 8.Re6+ Kf3 9.Rxf6 Ke4 10.Re6+ Kf3 11.Ra6 Ke4 12.Ra4+ Kf3 13.Bb4 Ke4 14.Bc3+ Kf3 15.Ra6 Ke4 16.Bc2+ Kf3 17.Nd4+ Kxg3 18.Rg6+ Kxf4 19.Nd5+ Ke5 20.Rg5+
 55	00:02	 23,055k	10,210k	+M18	1.Rd8 Ke4 2.Rd4+ Kf3 3.Rxd3 Ke4 4.Rd4+ Kf3 5.Rd6 Ke4 6.Re6+ Kf3 7.Rxf6 Ke4 8.Re6+ Kf3 9.Ra6 Ke4 10.Ra4+ Kf3 11.Bb4 Ke4 12.Bc3+ Kf3 13.Ra6 Ke4 14.Bc2+ Kf3 15.Nd4+ Kxg3 16.Rg6+ Kxf4 17.Nd5+ Ke5 18.Rg5+
---------------------------------------------------------------------------
 56	00:09	 105,200k	11,217k	+M12	1.Rd8 Ke4 2.Re8+ Kf3 3.Rh8 Ke4 4.c6 Rxe3 5.Rxf2 Bxf2 6.Nd6+ Kd5 7.c7 Re6 8.Rh5+ Re5 9.c8Q Bd4+ 10.Ka2 Bc5 11.Bxc5 Rxh5 12.Bb3+
 56	00:09	 105,200k	11,217k	+M11	1.Ra8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Ra5+ Bc5 7.c8Q Rxd6 8.Rxc5+ Ke4 9.Rc4+ Kd5 10.Qf5+ Kxc4 11.Qc5+
 56	00:09	 105,200k	11,217k	+M10	1.Rh8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Rh5+ Re5 7.c8Q Bd4+ 8.Ka2 Bc5 9.Bxc5 Rxh5 10.Bb3+
---------------------------------------------------------------------------
 57	00:10	 116,682k	11,262k	+M12	1.Rd8 Ke4 2.Re8+ Kf3 3.Rh8 Ke4 4.c6 Rxe3 5.Rxf2 Bxf2 6.Nd6+ Kd5 7.c7 Re6 8.Rh5+ Re5 9.c8Q Bd4+ 10.Ka2 Bc5 11.Bxc5 Rxh5 12.Bb3+
 57	00:10	 116,682k	11,262k	+M11	1.Ra8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Ra5+ Bc5 7.c8Q Rxd6 8.Rxc5+ Ke4 9.Rc4+ Kd5 10.Qf5+ Kxc4 11.Qc5+
 57	00:10	 116,682k	11,262k	+M10	1.Rh8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Rh5+ Re5 7.c8Q Bd4+ 8.Ka2 Bc5 9.Bxc5 Rxh5 10.Bb3+
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 58	00:12	 141,808k	11,468k	+M11	1.Ra8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Ra5+ Bc5 7.c8Q Rxd6 8.Rxc5+ Ke4 9.Rc4+ Kd5 10.Qf5+ Kxc4 11.Qc5+
 58	00:12	 141,808k	11,468k	+M10	1.Rd8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd4 5.c7 Re2 6.c8Q Ke3 7.Qe6+ Kf3 8.Qe4+ Kg4 9.Rg8+ Kh5 10.Qg6+
 58	00:12	 141,808k	11,468k	+M10	1.Rh8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Rh5+ Re5 7.c8Q Bd4+ 8.Ka2 Bc5 9.Bxc5 Rxh5 10.Bb3+
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 59	00:13	 153,327k	11,512k	+M11	1.Ra8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Ra5+ Bc5 7.c8Q Rxd6 8.Rxc5+ Ke4 9.Rc4+ Kd5 10.Qf5+ Kxc4 11.Qc5+
 59	00:13	 153,327k	11,512k	+M10	1.Rd8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd4 5.c7 Re2 6.c8Q Ke3 7.Qe6+ Kf3 8.Qe4+ Kg4 9.Rg8+ Kh5 10.Qg6+
 59	00:13	 153,327k	11,512k	+M10	1.Rh8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Rh5+ Re5 7.c8Q Bd4+ 8.Ka2 Bc5 9.Bxc5 Rxh5 10.Bb3+
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 60	00:15	 176,096k	11,622k	+M11	1.Ra8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Ra5+ Bc5 7.c8Q Rxd6 8.Rxc5+ Ke4 9.Rc4+ Kd5 10.Qf5+ Kxc4 11.Qc5+
 60	00:15	 176,096k	11,622k	+M10	1.Rd8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd4 5.c7 Re2 6.c8Q Ke3 7.Qe6+ Kf3 8.Qe4+ Kg4 9.Rg8+ Kh5 10.Qg6+
 60	00:15	 176,096k	11,622k	+M10	1.Rh8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Rh5+ Re5 7.c8Q Bd4+ 8.Ka2 Bc5 9.Bxc5 Rxh5 10.Bb3+
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 61	00:16	 192,315k	11,694k	+M11	1.Ra8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Ra5+ Bc5 7.c8Q Rxd6 8.Rxc5+ Ke4 9.Rc4+ Kd5 10.Qf5+ Kxc4 11.Qc5+
 61	00:16	 192,315k	11,694k	+M10	1.Rd8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd4 5.c7 Re2 6.c8Q Ke3 7.Qe6+ Kf3 8.Qe4+ Kg4 9.Rg8+ Kh5 10.Qg6+
 61	00:16	 192,315k	11,694k	+M10	1.Rh8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Rh5+ Re5 7.c8Q Bd4+ 8.Ka2 Bc5 9.Bxc5 Rxh5 10.Bb3+
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 62	00:18	 218,866k	11,794k	+M11	1.Ra8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Ra5+ Bc5 7.c8Q Rxd6 8.Rxc5+ Ke4 9.Rc4+ Kd5 10.Qf5+ Kxc4 11.Qc5+
 62	00:18	 218,866k	11,794k	+M10	1.Rd8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd4 5.c7 Re2 6.c8Q Ke3 7.Qe6+ Kf3 8.Qe4+ Kg4 9.Rg8+ Kh5 10.Qg6+
 62	00:18	 218,866k	11,794k	+M10	1.Rh8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Rh5+ Re5 7.c8Q Bd4+ 8.Ka2 Bc5 9.Bxc5 Rxh5 10.Bb3+
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 63	00:19	 231,163k	11,812k	+M11	1.Ra8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Ra5+ Bc5 7.c8Q Rxd6 8.Rxc5+ Ke4 9.Rc4+ Kd5 10.Qf5+ Kxc4 11.Qc5+
 63	00:19	 231,163k	11,812k	+M10	1.Rd8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd4 5.c7 Re2 6.c8Q Ke3 7.Qe6+ Kf3 8.Qe4+ Kg4 9.Rg8+ Kh5 10.Qg6+
 63	00:19	 231,163k	11,812k	+M10	1.Rh8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Rh5+ Re5 7.c8Q Bd4+ 8.Ka2 Bc5 9.Bxc5 Rxh5 10.Bb3+
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 63	00:20	 239,798k	11,823k	+M11	1.Ra8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Ra5+ Bc5 7.c8Q Rxd6 8.Rxc5+ Ke4 9.Rc4+ Kd5 10.Qf5+ Kxc4 11.Qc5+
 64	00:20	 239,798k	11,823k	+M10	1.Rd8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd4 5.c7 Re2 6.c8Q Ke3 7.Qe6+ Kf3 8.Qe4+ Kg4 9.Rg8+ Kh5 10.Qg6+
 64	00:20	 239,798k	11,823k	+M10	1.Rh8 Ke4 2.c6 Rxe3 3.Rxf2 Bxf2 4.Nd6+ Kd5 5.c7 Re6 6.Rh5+ Re5 7.c8Q Bd4+ 8.Ka2 Bc5 9.Bxc5 Rxh5 10.Bb3+
i7-6700K @ 4.00Ghz 32Gb, Win 10 Home, EGTBs on PCI SSD
Benchmark: Stockfish15.1 NNUE x64 bmi2 (nps): 1277K
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