
Chess Engine Leptir
Moderator: Ras
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- Full name: N.N.
Re: Chess Engine Leptir
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- Posts: 223
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Re: Chess Engine Leptir
Not for me when I look at your test positions. Here is my run today of your first 4 Stockfish dev "fails"... no fails for me. I'm using a 5950X
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11. ENET-2023 011 (HTC10) - Caruana vs Carlsen, g4 > 60s.
1r1q1rk1/1p2b2p/pN6/P1pP1bp1/5p2/2B2Q2/1P4PP/R4RK1 w - - bm g4; id "g4, 11";
SF finds the alternative Rad1 immediately and it is clearly winning
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22. ENET-2023 022 (CCC) - Attack, Nh4 > 60s.
1rb1qrk1/2b2pp1/p3pBn1/3pP1Pp/1ppP4/2P1QN2/PP3P1P/R2BR1K1 w - - bm Nh4; id "Nh4, 22";
FEN: 1rb1qrk1/2b2pp1/p3pBn1/3pP1Pp/1ppP4/2P1QN2/PP3P1P/R2BR1K1 w - - 0 1
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
32/49 00:17 548,750k 31,780k +0.69 h4 Kh7 Nh2 Rh8 Bxh5 Kg8 Bxg6 fxg6 Kg2 Bd7 Rh1 Qf8 Nf3 Rh5 b3 a5 cxb4 Rxb4 Rab1 Bc6 Qe2 a4 Qc2 Kh7 Qd2 Kg8 Rhg1 Rb7 Qc2 Qf7 Rh1 Rb4 Qc3 Qf8 bxc4 Ba5 c5
33/42 00:18 584,124k 31,650k +0.71 h4 Kh7 Nh2 Rh8 Bxh5 Kg8 Bxg6 fxg6 Kg2 Bd7 Rh1 Qf8 Nf3 Rh5 b3 a5 cxb4 Rxb4 Rab1 Bc6 Qe2 a4 Qc2 Kh7 Qd2 Kg8 Rhg1 Rb7 Qc2 Qf7 Rh1 Qe8 Rb2 Qf7 Rh3 Be8 Rg3 Ba5
34/42+ 00:19 602,402k 31,624k +0.74 h4
34/46 00:22 700,265k 31,487k +0.75 h4 Kh7 Nh2 Rh8 Bxh5 Bd7 Bxg6+ fxg6 Kg2 Kg8 Nf3 Qf8 b3 gxf6 gxf6 Qh6 cxb4 Rxb4 Rh1 Qxe3 fxe3 Bd8 Ng5 cxb3 axb3 a5 Kg3 Kf8 Rhc1 Rh5 Rc3 Rb7 Rac1 Ke8 Rf1 Kf8 Rf4 Rb8 Rg4 Rh8 Nh3 Kf7 Nf4
35/51+ 00:34 1,066,514k 30,871k +0.78 Nh4
35/51+ 00:35 1,094,259k 30,858k +0.81 Nh4
35/51+ 00:38 1,185,919k 30,858k +1.02 Nh4
35/48 00:38 1,185,919k 30,858k +1.19 Nh4 Kh7 Kh1 bxc3 bxc3 Bd7 Qh3 Rh8 Bc2 Rb2 Re2 Rb6 Rb1 Ba4 Nxg6 Rxb1+ Bxb1 fxg6 Rb2 Qf7 f3 Bb5 Bc2 Kg8 a4 Be8 Rb7 Qd7 Ra7 gxf6 gxf6 Kf8 Qg2
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24. ENET-2023 024 (Gashimov) - Springeropfer, Ng6+ > 60s.
2q2r1k/p1p1b1pp/br1p1n2/2p1N1BP/Q1P1P3/8/PP1N1PP1/2KR3R w - - bm Ng6+; id "Ng6+, 24";
FEN: 2q2r1k/p1p1b1pp/br1p1n2/2p1N1BP/Q1P1P3/8/PP1N1PP1/2KR3R w - - 0 1
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
34/53 00:12 382,681k 31,826k +1.74 Nd3 h6 Nf4 Kg8 Ng6 Re8 Nxe7+ Rxe7 Bxf6 gxf6 Rde1 Qe6 Re3 Rg7 g3 Bc8 Rh4 Qe5 Qc2 Bg4 Ra3 Rb8 Qc3 Rb7 f3 Be6 g4 Kf8 Rh1 Ke7 Kc2 Rg8 Re1 Qg3
35/56+ 00:21 677,841k 31,682k +1.81 Nd3
35/65 00:22 705,558k 31,675k +1.68 Nd3 h6 Nf4 Re8 Ng6+ Kg8 Nxe7+ Rxe7 Bxf6 gxf6 Rde1 Qe6 Rh4 Bc8 Re3 Qe5 Qc2 Rg7 Nf3 Qe6 g3 Rg4 b3 Rb8 Qc3 Kf7 Qa5 Rb7 Qd2 Rb8 Qc3 a6 Rxg4 Qxg4 e5 fxe5 Rxe5 Bb7 Qc2 Kf8 Qf5+ Qxf5 Rxf5+ Kg7 Nh4 Be4 Rf4 Re8 Nf5+ Bxf5 Rxf5
36/60 00:24 761,091k 31,638k +1.77 Nd3 h6 Nf4 Re8 Ng6+ Kg8 Nxe7+ Rxe7 Bxf6 gxf6 Rde1 Qe6 Rh4 Bc8 Re3 Qe5 Qc2 Rg7 g3 Rg4 Nf3 Qe6 Qc3 Kf7 b3 Rb8 Qa5 Rb7 Qd2 Rb8 Qc3 a6 Rxg4 Qxg4 e5 fxe5 Rxe5 Bb7 Qc2 Kf8 Rf5+ Ke7 Rf4 Qg7 Qb2 Qxb2+ Kxb2 Bxf3 Rxf3 Rg8 Rf4 Rg5
37/56- 00:24 774,696k 31,611k +1.65 Nd3 h6
37/67+ 00:25 801,083k 31,592k +1.75 Nd3
37/67+ 00:33 1,057,157k 31,624k +1.87 Ng6+
37/67+ 00:34 1,108,384k 31,747k +2.50 Ng6+
37/67 00:35 1,139,202k 31,820k +2.60 Ng6+ hxg6 hxg6+ Kg8 Qa3 Qg4 f4 Nxe4 Rh4 Qf5 Nxe4 Qxg6 Qe3 Bb7 Bxe7 Bxe4 Bxf8 Qxg2 Qd2 Qxd2+ Rxd2 Kxf8 Re2 d5 cxd5 Bxd5 a3 c6 Rh5 Rb3 Rf5+ Kg8 Re7 Rh3 Rg5 Rh1+ Kd2 Rh2+ Ke1 Rh1+ Kf2 Kf8 Rexg7 Rb1
38/67 00:37 1,182,713k 31,948k +2.60 Ng6+ hxg6 hxg6+ Kg8 Qa3 Qg4 f4 Nxe4 Rh4 Qf5 Nxe4 Qxg6 Qe3 Bb7 Bxe7 Bxe4 Bxf8 Qxg2 Qd2 Qxd2+ Rxd2 Kxf8 Re2 d5 cxd5 Bxd5 a3 c6 Rh5 Rb3 Rf5+ Kg8 Re7 Rh3 Rg5 Rh1+ Kd2 Rh2+ Ke1 Rh1+ Kf2 Kf8 Rexg7 Rb1
38/66 00:37 1,182,713k 31,948k +2.68 Ng6+ hxg6 hxg6+ Kg8 Qa3 Qg4 f4 Nxe4 Rh4 Qf5 Nxe4 Qxg6 Qe3 Bb7 Bxe7 Bxe4 Bxf8 Qxg2 Qd2 Qxd2+ Rxd2 Kxf8 Re2 d5 cxd5 Bxd5 a3 Kf7 Rh5 Rd6 Rf5+ Kg6 Rf8 Kh5 Re7 g6 Kd2 Be6+ Ke1 Bf5
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27. ENET-2023 027 (Bondarenko) - Endspiel, Bf4 > 60s.
2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - bm Bf4; id "Bf4, 27";
FEN: 2r5/prkpR1p1/2p1ppK1/P1p1N1B1/P1P1P3/8/8/8 w - - 0 1
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
47/37 00:03 136,467k 38,846k 0.00 Bxf6 gxf6 Rxd7+ Kb8 Kxf6 Rh8 Nxc6+ Kc8 Re7 Rxe7 Kxe7 Kb7 Nd8+ Ka6 Nxe6 Kxa5 Nxc5 Kb4 Kd6 Kxc4 e5 Rh1 Nd7 Rd1+ Ke7 Kb4 e6 Kxa4
48/29 00:03 146,849k 38,675k 0.00 Bxf6 gxf6 Rxd7+ Kb8 Kxf6 Rh8 Nxc6+ Kc8 Re7 Rxe7 Kxe7 Kb7 Nd8+ Ka6 Nxe6 Kxa5 Nxc5 Kb4 Kd6 Kxc4 e5 Rh1 Nd7 Rd1+ Ke7 Kb4 e6 Kxa4
49/36 00:04 158,603k 38,505k 0.00 Bxf6 gxf6 Rxd7+ Kb8 Kxf6 Rxd7 Nxd7+ Kc7 Nxc5 e5 Kxe5 Rh8 Ke6 Rh6+ Ke7 Rh7+ Ke6
50/17 00:04 183,756k 38,362k 0.00 Bxf6 gxf6 Rxd7+ Kb8 Kxf6 Rxd7 Nxd7+ Kc7 Nxc5 e5 Kxe5 Re8+ Kf6 Kd6 Nb7+ Kc7
51/36+ 00:05 224,255k 37,482k +0.02 Bf4
51/36+ 00:06 234,974k 37,292k +0.05 Bf4
51/36+ 00:09 354,338k 37,256k +3.34 Bf4
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- Posts: 223
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- Location: UK
Re: Chess Engine Leptir
Some more results from my test run... I see some matching fails and some not...
30. ENET-2023 030 (Gusev) - Damenopfer, Qxe5 > 60s.
Fail. I can't get a quick solution for this.
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31. ENET-2023 031 (HTC108) - Laeferopfer, Bxc5+ > 60s.
Fail. Took 2:24
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39. ENET-2023 039 (Morozevich A) - Springeropfer, Nd5 > 60s.
r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - bm Nd5; id "Nd5, 39";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
33/56 00:17 573,861k 32,018k +1.64 Qe3 e5 f4 Nd7 fxe5 dxe5 Nd5 Bxd5 exd5 Bd6 Bd3 Rae8 Rg3 Bc5 Qd2 Qd6 Bc2 Qf6 Qe2 Qd6 Rdg1 Nf6 Qd2 Nxh5 Rf3 Nf6 Rh1 Nh7 Rxf7 Rgf8 Qd3 e4 Rxf8+ Nxf8 Qh3 Nd7 Rg1 Nf6 Rg6
34/50- 00:23 735,373k 31,315k +1.55 Qe3 a4
34/56 00:31 956,977k 30,712k +1.63 Qe3 Qc5 Na4 Qxe3 fxe3 Nd7 Rd2 Rab8 Be2 e5 Rgd1 Bc8 Rxd6 Bxd6 Rxd6 f6 Bc3 Re8 Ka2 g6 hxg6 h5 Be1 Kg7 Bh4 Kxg6 f4 exf4 exf4 Rxe4 Bd3 Kf5 Bg3 Kg4 Bxe4 Kxg3 Bc6 Nc5 Nxc5 bxc5 Rd8
35/55+ 00:36 1,120,490k 30,713k +1.70 Qe3
35/63+ 00:39 1,221,201k 30,704k +1.79 Nd5
35/63+ 00:45 1,398,097k 30,777k +2.23 Nd5
36/59 00:45 1,398,097k 30,777k +2.28 Nd5 Bxd5 cxd5 e5 Rc1 Qd8 Rc6 Rc8 Qc1 Re8 Bh3 Rxc6 dxc6 Qc7 Qc4 Bd8 f4 Qe7 Rd1 exf4 Bxf6 gxf6 Qd5 Qxe4+ Qxe4 Rxe4 Rxd6
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41. ENET-2023 041 (2015_Glarean) - Endspiel, Rg7+ > 60s.
3q3N/1p5k/5B2/8/1p2p1Rp/1P5K/p3PP2/8 w - - bm Rg7+; id "Rg7+, 41";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
40/58+ 00:10 387,983k 38,225k +0.10 Rxh4+
40/58 00:10 418,915k 38,383k +0.06 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke2 Qf7 Ba3 b4 Bb2 Qe7+ Ne5 Qg5 Kd1 Qf5 Nd3 Qh5+ Kc2
41/57 00:12 464,289k 38,508k +0.07 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Be7 Kf7 Bxb4 Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke2 Qf7 Ba3 b4 Bb2 Qe7+ Kf2 Qf7 Be5 Qe6 Ba1 Qf5 Bd4 Kd7 Ke3 Kc6 Bb2 Kb7 Rh2 Qe6+ Ne5 Qf5 Bd4
42/55 00:13 508,957k 38,566k +0.08 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qb3 Ba5 Qf7 Bc3 b4 Be5 Qe6 Bb2 Qf7 Rd3 Qh5 Ke3 Qh6+ Ke2 Qg6 Rd2 Qe6+ Kf1 Qb3 Re2+ Kd7
43/57 00:14 573,989k 38,731k +0.05 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke1 Qa4 Re2+ Kd8 Re4 Kc8 Ke2 Qc2+ Nd2 Kb7 Re7+ Kb6 Re3 Ka6 Rc3 Qf5 Rb3 Kb7 Kd1 Qg4+ Kc1
44/57 00:16 635,442k 38,732k +0.06 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke1 Qa4 Re2+ Kd8 Re4 Qc2 Nd2 Kc8 Ke2 Kb7 Rd4 Kc8 Rf4 Kb7 Re4 Ka6 Ke3 Kb7 Rd4 Qg6 Ke2 Qg2+ Kd3
45/56 00:17 688,055k 38,751k +0.06 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke1 Qa4 Rd4 Qb3 Re4+ Kd8 Ke2 Qc2+ Nd2 Kc8 Rd4 Kb7 Rf4 Qc1 Rg4 Qc2 Rd4 Qb2 Kd3 Qc1 Re4 Qd1 Kc3
46/56 00:21 833,472k 38,646k +0.06 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rf4 Qa2+ Nd2 Qb2 Ke2 Kd7 Kd3 Kc6 Rd4 Kb7 Re4 Qc1 Nf3 Kc6 Rd4 Qb1+ Ke3 Qb3+ Kf2 Qb2+ Bd2 b4 Ne5+ Kb5 Ke3 Qb3+ Kf2
47/62+ 00:33 1,296,473k 39,159k +0.09 Rg7+
47/62+ 00:33 1,296,610k 39,161k +0.11 Rg7+
47/75+ 00:38 1,600,109k 41,870k +6.90 Rg7+
51/57 00:38 1,600,109k 41,870k +6.89 Rg7+ Kxh8 Ba1 Qd2 Rd7+ Qc3+ Bxc3+ bxc3 Rd1 Kg8 Ra1 c2 Kxh4 Kf8 e3 Ke7 Kg5 Kd7 Kf4 Ke6 Kxe4 Kf6 Rc1 Ke6 Kd3 Kd5 Kxc2 a1Q Rxa1 Kc5 Kd3 Kd6 Rc1 Kd7 Ke4 b6 Ra1
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66. ENET-2023 066 (ERET 090) - Endspiel L vs L, f4, Salai 2011 > 60s.
4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - - bm f4; id "f4, Salai 2011, 66";
Fail. Took 2:09
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69. ENET-2023 069 (TTT2.053) - Springeropfer, Ng6 > 60s.
rnbq3r/1p2b1k1/2pp1p1p/pP3pp1/2BP3N/P3P3/2P2PPP/RN1Q1RK1 w - - bm Ng6; id "Ng6, 69";
Fail. Took 2:41
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70. ENET-2023 070 (ERET 094) - Damenopfer, Rf6, Sirobaba-Chaika, CorrGame 2011 > 60s.
2k2Br1/p6b/Pq1r4/1p2p1b1/1Ppp2p1/Q1P3N1/5RPP/R3N1K1 b - - bm Rf6; id "Rf6, Sirobaba-Chaika, CorrGame 2011, 70";
Stockfish chose Rd7 which is winning.
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73. ENET-2023 073 (Smyslov) - Endspiel, g4 > 60s.
8/8/3k2p1/5ppb/3P4/1P6/1P3NP1/4K3 w - - bm g4; id "g4, 73";
Fail but only 3 secs over. Will no doubt pass on some runs.
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
82/28 00:38 1,827,118k 47,373k 0.00 Nh3 Kd5 Nxg5 Kxd4 Nh7 g5 Nxg5 Kc5 Kd2 Kb4 Kc2 f4 Nh3 f3 g3 Bg6+ Kc1 Kxb3 g4 Be8 Nf2 Bd7 g5 Be8 Nh3 f2 Nxf2
83/28 00:42 2,028,649k 47,585k 0.00 Nh3 Kd5 Nxg5 Kxd4 Nh7 g5 Nxg5 Kc5 Kd2 Kb4 Kc2 f4 Nh3 f3 g3 Bg6+ Kc1 Kxb3 g4 Be8 Nf2 Bd7 g5 Be8 Nh3 f2 Nxf2
84/28 00:44 2,126,469k 47,542k 0.00 Nh3 Kd5 Nxg5 Kxd4 Nh7 g5 Nxg5 Kc5 Kd2 Kb4 Kc2 f4 Nh3 f3 g3 Bg6+ Kc1 Kxb3 g4 Be8 Nf2 Bd7 g5 Be8 Nh3 f2 Nxf2
85/31+ 01:03 3,188,055k 49,928k +0.02 g4
85/31+ 01:04 3,214,477k 50,134k +0.05 g4
85/32+ 01:10 3,747,570k 52,845k +2.62 g4
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86. ENET-2023 086 - Online Engine game Solista, f6! > 60s.
2kr4/pp1n1pBp/3bp1p1/3p2qP/P7/3B1K2/1PP2P2/R2Q1R2 b - - bm f6; id "f6!, 86";
Another narrow fail by 10 secs. A fail is a fail but this margin does not show "clearly weaker". I'm personally more interested when SF can't solve at all or takes much longer... not a matter of seconds difference between pass and fail.
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
41/67 00:36 1,235,170k 33,539k +0.45 e5 Ke2 e4 Bb5 Ne5 Bxe5 Qxe5 Qd2 a6 Qc3+ Qxc3 bxc3 axb5 axb5 Kd7 Rfd1 Ke6 c4 dxc4 h6 Rb8 Ra4 f5 Rxc4 Bf4 b6 Ra8 Kf1 Ra6 Rb1 Ra8 f3 Kd5 Rcb4 Re8 fxe4+ Rxe4 Rxe4 fxe4 Rd1+ Kc6 Rd4 Bxh6 Rxe4 Bg5 Re5 Bh4 Re8 Kxb6 Rh8 h5 Rh6 Kc5 Rxg6 b5 Ke2 Bd8 Rg8 Be7 Rg7 Bf6 Rc7+ Kb4 Rf7
42/72+ 00:39 1,318,685k 33,381k +0.49 e5 Ke2
42/72+ 00:40 1,346,949k 33,361k +0.52 e5 Ke2
42/73+ 00:53 1,739,282k 32,810k +0.80 e5 Ke2
42/73- 01:01 1,991,370k 32,325k +0.72 e5
42/83- 01:10 2,253,289k 31,964k +0.56 f6
42/83 01:12 2,309,031k 31,935k +0.56 f6 Rh1 gxh5 Qg1 Qd2 Rxh5 Ne5+ Kg2 Qf4 Rh3 Nxd3 Rxd3 Qg4+ Kf1 Qxg1+ Kxg1 Rg8 c4 Rxg7+ Kh1 Be5 cxd5 exd5 Rf1 Bxb2 Rd2 Ba3 Rxd5 Kc7 Rf5 Rg6 Kh2 b6 Kh3 Kc6 Re1 a6 Rb1 Bd6 Rc1+ Kd7 Rd5 Rg5 Rd4 Rc5 Rcd1 Rc6 Kg4 Kc7 Rh1 b5 Rxh7+ Kb6 axb5 axb5
43/72- 01:15 2,402,929k 31,884k +0.55 f6
43/72- 01:16 2,439,770k 31,868k +0.55 f6
43/69 01:16 2,439,770k 31,868k +0.56 f6 Rh1 gxh5 Qg1 Qd2 Rxh5 Ne5+ Kg2 Qf4 Rh3 Nxd3 Rxd3 Qg4+ Kf1 Qxg1+ Kxg1 Rg8 Kh1 Rxg7 c4 Be5 cxd5 exd5 Rf1 Bxb2 Rxd5 b6 f4 Rd7 Rh5 Kb7 Kg2 Ka6 Rb1 Bd4 Rd1 Rg7+ Kf3 Bc5 Re1 Ka5 Re4 Rd7 Kg4 Rd6 Rf5 Rc6 Rc4 Rd6 Kh5 Rc6 Rd5 Rc7 Kg4 Rc6 Rd7 a6 Rxh7 b5 axb5 axb5
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88. ENET-2023 088 - Dorsz, Stockfish v Blue Marli, Qh6! > 60s.
r4rk1/1b4pp/4pq2/PB2n3/3N1Pn1/1PN3K1/1B2Q1P1/R4R2 b - - bm Qh6; id "Qh6!, 88";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
39/62 00:30 1,070,062k 34,707k +0.14 Ne3 Qh5 Ng6 Nce2 Nxf1+ Rxf1 Rxa5 Bc1 Rxb5 Nxb5 e5 Rf2 Qc6 Nbc3 exf4+ Kh2 Qb6 Rf1 Qc6 Qh3 Qd6 Kh1 Rf6 Rd1 Qc5 b4 Qf2 Rd8+ Rf8 Rxf8+ Kxf8 Qf5+ Kg8 Qe6+ Kf8 Qd6+ Kg8 Nxf4 Qh4+ Kg1 Qe1+ Kh2 Qxc1 Qe6+ Kf8 Nxg6+ hxg6 Qe5 Kg8 b5 Qh6+ Kg3 Qd2 Qb8+ Kh7 Qxb7 Qxc3+ Kf4 Qf6+ Ke4 Qf5+ Ke3 Qe5+ Kd3
40/53 00:33 1,153,112k 34,591k +0.12 Ne3 Qh5 Ng6 Nce2 Nxf1+ Rxf1 Rxa5 Kh2 Ba6 Bc3 Rxb5 Nxb5 e5 Rf3 Qh4+ Qxh4 Nxh4 Re3 Bxb5 Rxe5 Bxe2 Rxe2 Rxf4 b4 Nf5 Rb2 Rc4 Be5 Re4 Bb8 Re7 b5 Rb7 Be5 Ne3 Bd4 Nc4 Rb4 Nb6 Kg3 Kf7 Kf3 Ke6 Ke4 h5 Kd3 Kd6 Bxb6 Rxb6
41/70+ 00:34 1,201,691k 34,543k +0.15 Ne3 Qh5
41/70- 00:37 1,303,314k 34,398k +0.12 Ne3
41/70 00:38 1,321,088k 34,368k +0.14 Ne3 Qh5 Ng6 Nce2 Nxf1+ Rxf1 Rxa5 Bc1 Rxb5 Nxb5 e5 Rf2 Qc6 Nbc3 exf4+ Kh2 Qb6 Rf1 Qc6 Qh3 Qd6 Kh1 Rf6 Rd1 Qc5 b4 Qf2 Rd8+ Rf8 Rxf8+ Kxf8 Qf5+ Kg8 Qe6+ Kf8 Nxf4 Qf1+ Kh2 Qxc1 Qd6+ Kg8 Ncd5 Nxf4 Qd7 h6 Qxb7 Ng6 Ne7+ Nxe7 Qxe7 Qf4+ Kg1 Qd4+ Kf1 Qd3+ Kf2 Qd2+ Kf3 Qd1+ Kg3 Qd3+ Kh2 Qc4 Qe8+ Kh7 b5 Qh4+ Kg1 Qd4+ Kf1
42/68 00:42 1,469,986k 34,205k +0.14 Ne3 Qh5 Ng6 Nce2 Nxf1+ Rxf1 Rxa5 Bc1 Rxb5 Nxb5 e5 Rf2 Qc6 Nbc3 exf4+ Kh2 Qb6 Rf1 Qc6 Qh3 Qd6 Kh1 Rf6 Rd1 Qc5 b4 Qf2 Rd8+ Rf8 Rxf8+ Kxf8 Qf5+ Kg8 Qe6+ Kf8 Nxf4 Qf1+ Kh2 Qxc1 Qd6+ Kg8 Ncd5 Nxf4 Qd7 h6 Qxb7 Ng6 Ne7+ Nxe7 Qxe7 Qf4+ Kg1 Qd4+ Kf1 Qd3+ Kf2 Qd2+ Kg3 Qc3+ Kh2 Qd4 Qe8+ Kh7 b5 Qf4+ Kh3 Qf5+ Kg3
43/46- 00:43 1,480,680k 34,185k +0.11 Qh6
43/46- 00:43 1,484,276k 34,178k +0.09 Qh6
43/50- 00:47 1,621,782k 34,030k -4.10 Qh6
43/50 00:49 1,691,470k 34,097k -5.17 Qh6 Qxe5 Nxe5 Nce2 g5 Kf2 gxf4 Rh1 Qg5 Nc6 Bxc6 Bxc6 Nxc6 Rh3 Ne5 Bxe5 Qxe5 Rc3 f3 gxf3 Rxa5 Rxa5 Qxa5 Rc4 e5 Re4 Qb6+ Kf1 h6
44/38- 01:01 2,118,815k 34,688k -5.22 Qh6
44/38- 01:32 3,369,706k 36,484k -5.76 Qh6
44/38- 02:22 5,613,946k 39,524k -6.45 Qh6
42/62 02:22 5,613,946k 39,524k -6.26 Qh6 Qxe5 Nxe5 Bc1 Qg6+ Kf2 Qxg2+ Ke1 Qg3+ Kd2 Rad8 Ra4 Nc6 Nce2 Qxb3 Bxc6 Bxc6 Ra3 Qc4 Rc3 Rxd4+ Ke1 Qb4 Ba3 Qb1+ Rc1 Qd3 Nxd4 Qe3+ Ne2 Bb5 Rc2 Qxa3 Rc3 Qxa5 Kf2 Qb6+ Kg3 Rf6 Rfc1 Rg6+ Kf3 Bxe2+ Kxe2
30. ENET-2023 030 (Gusev) - Damenopfer, Qxe5 > 60s.
Fail. I can't get a quick solution for this.
----
31. ENET-2023 031 (HTC108) - Laeferopfer, Bxc5+ > 60s.
Fail. Took 2:24
----
39. ENET-2023 039 (Morozevich A) - Springeropfer, Nd5 > 60s.
r5rk/1bq1bpp1/1p1ppn1p/pP5P/2P1P3/P1N2P2/1B1Q1P2/1K1R1BR1 w - - bm Nd5; id "Nd5, 39";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
33/56 00:17 573,861k 32,018k +1.64 Qe3 e5 f4 Nd7 fxe5 dxe5 Nd5 Bxd5 exd5 Bd6 Bd3 Rae8 Rg3 Bc5 Qd2 Qd6 Bc2 Qf6 Qe2 Qd6 Rdg1 Nf6 Qd2 Nxh5 Rf3 Nf6 Rh1 Nh7 Rxf7 Rgf8 Qd3 e4 Rxf8+ Nxf8 Qh3 Nd7 Rg1 Nf6 Rg6
34/50- 00:23 735,373k 31,315k +1.55 Qe3 a4
34/56 00:31 956,977k 30,712k +1.63 Qe3 Qc5 Na4 Qxe3 fxe3 Nd7 Rd2 Rab8 Be2 e5 Rgd1 Bc8 Rxd6 Bxd6 Rxd6 f6 Bc3 Re8 Ka2 g6 hxg6 h5 Be1 Kg7 Bh4 Kxg6 f4 exf4 exf4 Rxe4 Bd3 Kf5 Bg3 Kg4 Bxe4 Kxg3 Bc6 Nc5 Nxc5 bxc5 Rd8
35/55+ 00:36 1,120,490k 30,713k +1.70 Qe3
35/63+ 00:39 1,221,201k 30,704k +1.79 Nd5
35/63+ 00:45 1,398,097k 30,777k +2.23 Nd5
36/59 00:45 1,398,097k 30,777k +2.28 Nd5 Bxd5 cxd5 e5 Rc1 Qd8 Rc6 Rc8 Qc1 Re8 Bh3 Rxc6 dxc6 Qc7 Qc4 Bd8 f4 Qe7 Rd1 exf4 Bxf6 gxf6 Qd5 Qxe4+ Qxe4 Rxe4 Rxd6
----
41. ENET-2023 041 (2015_Glarean) - Endspiel, Rg7+ > 60s.
3q3N/1p5k/5B2/8/1p2p1Rp/1P5K/p3PP2/8 w - - bm Rg7+; id "Rg7+, 41";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
40/58+ 00:10 387,983k 38,225k +0.10 Rxh4+
40/58 00:10 418,915k 38,383k +0.06 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke2 Qf7 Ba3 b4 Bb2 Qe7+ Ne5 Qg5 Kd1 Qf5 Nd3 Qh5+ Kc2
41/57 00:12 464,289k 38,508k +0.07 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Be7 Kf7 Bxb4 Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke2 Qf7 Ba3 b4 Bb2 Qe7+ Kf2 Qf7 Be5 Qe6 Ba1 Qf5 Bd4 Kd7 Ke3 Kc6 Bb2 Kb7 Rh2 Qe6+ Ne5 Qf5 Bd4
42/55 00:13 508,957k 38,566k +0.08 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qb3 Ba5 Qf7 Bc3 b4 Be5 Qe6 Bb2 Qf7 Rd3 Qh5 Ke3 Qh6+ Ke2 Qg6 Rd2 Qe6+ Kf1 Qb3 Re2+ Kd7
43/57 00:14 573,989k 38,731k +0.05 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke1 Qa4 Re2+ Kd8 Re4 Kc8 Ke2 Qc2+ Nd2 Kb7 Re7+ Kb6 Re3 Ka6 Rc3 Qf5 Rb3 Kb7 Kd1 Qg4+ Kc1
44/57 00:16 635,442k 38,732k +0.06 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke1 Qa4 Re2+ Kd8 Re4 Qc2 Nd2 Kc8 Ke2 Kb7 Rd4 Kc8 Rf4 Kb7 Re4 Ka6 Ke3 Kb7 Rd4 Qg6 Ke2 Qg2+ Kd3
45/56 00:17 688,055k 38,751k +0.06 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rd4 Qf7 Rd2 Qa7+ Ke1 Qa4 Rd4 Qb3 Re4+ Kd8 Ke2 Qc2+ Nd2 Kc8 Rd4 Kb7 Rf4 Qc1 Rg4 Qc2 Rd4 Qb2 Kd3 Qc1 Re4 Qd1 Kc3
46/56 00:21 833,472k 38,646k +0.06 Bxd8 a1Q Rxh4+ Kg8 Ng6 Qf1+ Kg3 Qxe2 Ne5 e3 fxe3 Qxe3+ Nf3 Qxb3 Ba5 Kf8 Bxb4+ Ke8 Kf2 Qc2+ Ke3 Qb3+ Ke2 Qe6+ Kf2 b5 Rf4 Qa2+ Nd2 Qb2 Ke2 Kd7 Kd3 Kc6 Rd4 Kb7 Re4 Qc1 Nf3 Kc6 Rd4 Qb1+ Ke3 Qb3+ Kf2 Qb2+ Bd2 b4 Ne5+ Kb5 Ke3 Qb3+ Kf2
47/62+ 00:33 1,296,473k 39,159k +0.09 Rg7+
47/62+ 00:33 1,296,610k 39,161k +0.11 Rg7+
47/75+ 00:38 1,600,109k 41,870k +6.90 Rg7+
51/57 00:38 1,600,109k 41,870k +6.89 Rg7+ Kxh8 Ba1 Qd2 Rd7+ Qc3+ Bxc3+ bxc3 Rd1 Kg8 Ra1 c2 Kxh4 Kf8 e3 Ke7 Kg5 Kd7 Kf4 Ke6 Kxe4 Kf6 Rc1 Ke6 Kd3 Kd5 Kxc2 a1Q Rxa1 Kc5 Kd3 Kd6 Rc1 Kd7 Ke4 b6 Ra1
----
66. ENET-2023 066 (ERET 090) - Endspiel L vs L, f4, Salai 2011 > 60s.
4K1k1/8/1p5p/1Pp3b1/8/1P3P2/P1B2P2/8 w - - bm f4; id "f4, Salai 2011, 66";
Fail. Took 2:09
----
69. ENET-2023 069 (TTT2.053) - Springeropfer, Ng6 > 60s.
rnbq3r/1p2b1k1/2pp1p1p/pP3pp1/2BP3N/P3P3/2P2PPP/RN1Q1RK1 w - - bm Ng6; id "Ng6, 69";
Fail. Took 2:41
----
70. ENET-2023 070 (ERET 094) - Damenopfer, Rf6, Sirobaba-Chaika, CorrGame 2011 > 60s.
2k2Br1/p6b/Pq1r4/1p2p1b1/1Ppp2p1/Q1P3N1/5RPP/R3N1K1 b - - bm Rf6; id "Rf6, Sirobaba-Chaika, CorrGame 2011, 70";
Stockfish chose Rd7 which is winning.
----
73. ENET-2023 073 (Smyslov) - Endspiel, g4 > 60s.
8/8/3k2p1/5ppb/3P4/1P6/1P3NP1/4K3 w - - bm g4; id "g4, 73";
Fail but only 3 secs over. Will no doubt pass on some runs.
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
82/28 00:38 1,827,118k 47,373k 0.00 Nh3 Kd5 Nxg5 Kxd4 Nh7 g5 Nxg5 Kc5 Kd2 Kb4 Kc2 f4 Nh3 f3 g3 Bg6+ Kc1 Kxb3 g4 Be8 Nf2 Bd7 g5 Be8 Nh3 f2 Nxf2
83/28 00:42 2,028,649k 47,585k 0.00 Nh3 Kd5 Nxg5 Kxd4 Nh7 g5 Nxg5 Kc5 Kd2 Kb4 Kc2 f4 Nh3 f3 g3 Bg6+ Kc1 Kxb3 g4 Be8 Nf2 Bd7 g5 Be8 Nh3 f2 Nxf2
84/28 00:44 2,126,469k 47,542k 0.00 Nh3 Kd5 Nxg5 Kxd4 Nh7 g5 Nxg5 Kc5 Kd2 Kb4 Kc2 f4 Nh3 f3 g3 Bg6+ Kc1 Kxb3 g4 Be8 Nf2 Bd7 g5 Be8 Nh3 f2 Nxf2
85/31+ 01:03 3,188,055k 49,928k +0.02 g4
85/31+ 01:04 3,214,477k 50,134k +0.05 g4
85/32+ 01:10 3,747,570k 52,845k +2.62 g4
----
86. ENET-2023 086 - Online Engine game Solista, f6! > 60s.
2kr4/pp1n1pBp/3bp1p1/3p2qP/P7/3B1K2/1PP2P2/R2Q1R2 b - - bm f6; id "f6!, 86";
Another narrow fail by 10 secs. A fail is a fail but this margin does not show "clearly weaker". I'm personally more interested when SF can't solve at all or takes much longer... not a matter of seconds difference between pass and fail.
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
41/67 00:36 1,235,170k 33,539k +0.45 e5 Ke2 e4 Bb5 Ne5 Bxe5 Qxe5 Qd2 a6 Qc3+ Qxc3 bxc3 axb5 axb5 Kd7 Rfd1 Ke6 c4 dxc4 h6 Rb8 Ra4 f5 Rxc4 Bf4 b6 Ra8 Kf1 Ra6 Rb1 Ra8 f3 Kd5 Rcb4 Re8 fxe4+ Rxe4 Rxe4 fxe4 Rd1+ Kc6 Rd4 Bxh6 Rxe4 Bg5 Re5 Bh4 Re8 Kxb6 Rh8 h5 Rh6 Kc5 Rxg6 b5 Ke2 Bd8 Rg8 Be7 Rg7 Bf6 Rc7+ Kb4 Rf7
42/72+ 00:39 1,318,685k 33,381k +0.49 e5 Ke2
42/72+ 00:40 1,346,949k 33,361k +0.52 e5 Ke2
42/73+ 00:53 1,739,282k 32,810k +0.80 e5 Ke2
42/73- 01:01 1,991,370k 32,325k +0.72 e5
42/83- 01:10 2,253,289k 31,964k +0.56 f6
42/83 01:12 2,309,031k 31,935k +0.56 f6 Rh1 gxh5 Qg1 Qd2 Rxh5 Ne5+ Kg2 Qf4 Rh3 Nxd3 Rxd3 Qg4+ Kf1 Qxg1+ Kxg1 Rg8 c4 Rxg7+ Kh1 Be5 cxd5 exd5 Rf1 Bxb2 Rd2 Ba3 Rxd5 Kc7 Rf5 Rg6 Kh2 b6 Kh3 Kc6 Re1 a6 Rb1 Bd6 Rc1+ Kd7 Rd5 Rg5 Rd4 Rc5 Rcd1 Rc6 Kg4 Kc7 Rh1 b5 Rxh7+ Kb6 axb5 axb5
43/72- 01:15 2,402,929k 31,884k +0.55 f6
43/72- 01:16 2,439,770k 31,868k +0.55 f6
43/69 01:16 2,439,770k 31,868k +0.56 f6 Rh1 gxh5 Qg1 Qd2 Rxh5 Ne5+ Kg2 Qf4 Rh3 Nxd3 Rxd3 Qg4+ Kf1 Qxg1+ Kxg1 Rg8 Kh1 Rxg7 c4 Be5 cxd5 exd5 Rf1 Bxb2 Rxd5 b6 f4 Rd7 Rh5 Kb7 Kg2 Ka6 Rb1 Bd4 Rd1 Rg7+ Kf3 Bc5 Re1 Ka5 Re4 Rd7 Kg4 Rd6 Rf5 Rc6 Rc4 Rd6 Kh5 Rc6 Rd5 Rc7 Kg4 Rc6 Rd7 a6 Rxh7 b5 axb5 axb5
----
88. ENET-2023 088 - Dorsz, Stockfish v Blue Marli, Qh6! > 60s.
r4rk1/1b4pp/4pq2/PB2n3/3N1Pn1/1PN3K1/1B2Q1P1/R4R2 b - - bm Qh6; id "Qh6!, 88";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
39/62 00:30 1,070,062k 34,707k +0.14 Ne3 Qh5 Ng6 Nce2 Nxf1+ Rxf1 Rxa5 Bc1 Rxb5 Nxb5 e5 Rf2 Qc6 Nbc3 exf4+ Kh2 Qb6 Rf1 Qc6 Qh3 Qd6 Kh1 Rf6 Rd1 Qc5 b4 Qf2 Rd8+ Rf8 Rxf8+ Kxf8 Qf5+ Kg8 Qe6+ Kf8 Qd6+ Kg8 Nxf4 Qh4+ Kg1 Qe1+ Kh2 Qxc1 Qe6+ Kf8 Nxg6+ hxg6 Qe5 Kg8 b5 Qh6+ Kg3 Qd2 Qb8+ Kh7 Qxb7 Qxc3+ Kf4 Qf6+ Ke4 Qf5+ Ke3 Qe5+ Kd3
40/53 00:33 1,153,112k 34,591k +0.12 Ne3 Qh5 Ng6 Nce2 Nxf1+ Rxf1 Rxa5 Kh2 Ba6 Bc3 Rxb5 Nxb5 e5 Rf3 Qh4+ Qxh4 Nxh4 Re3 Bxb5 Rxe5 Bxe2 Rxe2 Rxf4 b4 Nf5 Rb2 Rc4 Be5 Re4 Bb8 Re7 b5 Rb7 Be5 Ne3 Bd4 Nc4 Rb4 Nb6 Kg3 Kf7 Kf3 Ke6 Ke4 h5 Kd3 Kd6 Bxb6 Rxb6
41/70+ 00:34 1,201,691k 34,543k +0.15 Ne3 Qh5
41/70- 00:37 1,303,314k 34,398k +0.12 Ne3
41/70 00:38 1,321,088k 34,368k +0.14 Ne3 Qh5 Ng6 Nce2 Nxf1+ Rxf1 Rxa5 Bc1 Rxb5 Nxb5 e5 Rf2 Qc6 Nbc3 exf4+ Kh2 Qb6 Rf1 Qc6 Qh3 Qd6 Kh1 Rf6 Rd1 Qc5 b4 Qf2 Rd8+ Rf8 Rxf8+ Kxf8 Qf5+ Kg8 Qe6+ Kf8 Nxf4 Qf1+ Kh2 Qxc1 Qd6+ Kg8 Ncd5 Nxf4 Qd7 h6 Qxb7 Ng6 Ne7+ Nxe7 Qxe7 Qf4+ Kg1 Qd4+ Kf1 Qd3+ Kf2 Qd2+ Kf3 Qd1+ Kg3 Qd3+ Kh2 Qc4 Qe8+ Kh7 b5 Qh4+ Kg1 Qd4+ Kf1
42/68 00:42 1,469,986k 34,205k +0.14 Ne3 Qh5 Ng6 Nce2 Nxf1+ Rxf1 Rxa5 Bc1 Rxb5 Nxb5 e5 Rf2 Qc6 Nbc3 exf4+ Kh2 Qb6 Rf1 Qc6 Qh3 Qd6 Kh1 Rf6 Rd1 Qc5 b4 Qf2 Rd8+ Rf8 Rxf8+ Kxf8 Qf5+ Kg8 Qe6+ Kf8 Nxf4 Qf1+ Kh2 Qxc1 Qd6+ Kg8 Ncd5 Nxf4 Qd7 h6 Qxb7 Ng6 Ne7+ Nxe7 Qxe7 Qf4+ Kg1 Qd4+ Kf1 Qd3+ Kf2 Qd2+ Kg3 Qc3+ Kh2 Qd4 Qe8+ Kh7 b5 Qf4+ Kh3 Qf5+ Kg3
43/46- 00:43 1,480,680k 34,185k +0.11 Qh6
43/46- 00:43 1,484,276k 34,178k +0.09 Qh6
43/50- 00:47 1,621,782k 34,030k -4.10 Qh6
43/50 00:49 1,691,470k 34,097k -5.17 Qh6 Qxe5 Nxe5 Nce2 g5 Kf2 gxf4 Rh1 Qg5 Nc6 Bxc6 Bxc6 Nxc6 Rh3 Ne5 Bxe5 Qxe5 Rc3 f3 gxf3 Rxa5 Rxa5 Qxa5 Rc4 e5 Re4 Qb6+ Kf1 h6
44/38- 01:01 2,118,815k 34,688k -5.22 Qh6
44/38- 01:32 3,369,706k 36,484k -5.76 Qh6
44/38- 02:22 5,613,946k 39,524k -6.45 Qh6
42/62 02:22 5,613,946k 39,524k -6.26 Qh6 Qxe5 Nxe5 Bc1 Qg6+ Kf2 Qxg2+ Ke1 Qg3+ Kd2 Rad8 Ra4 Nc6 Nce2 Qxb3 Bxc6 Bxc6 Ra3 Qc4 Rc3 Rxd4+ Ke1 Qb4 Ba3 Qb1+ Rc1 Qd3 Nxd4 Qe3+ Ne2 Bb5 Rc2 Qxa3 Rc3 Qxa5 Kf2 Qb6+ Kg3 Rf6 Rfc1 Rg6+ Kf3 Bxe2+ Kxe2
-
- Posts: 1439
- Joined: Sat Oct 27, 2018 12:58 am
- Location: Germany
- Full name: N.N.
Re: Chess Engine Leptir
Then everything is fine for you, great. I see it differently for me. I'll leave your opinion, but leave mine too. 
On my PC, Stockfish dev only manages 91 solutions (poor) with 60s, Leptir manages 103. That is fact.

On my PC, Stockfish dev only manages 91 solutions (poor) with 60s, Leptir manages 103. That is fact.
-
- Posts: 223
- Joined: Thu Aug 06, 2009 8:04 pm
- Location: UK
Re: Chess Engine Leptir
I'm not stating my opinion. I'm showing my facts too.
-
- Posts: 223
- Joined: Thu Aug 06, 2009 8:04 pm
- Location: UK
Re: Chess Engine Leptir
(Sorry that I'm not cross checking with what Dann Corbit posted. I may be repeating something he highlighted)
89. ENET-2023 089 - Taktik, Verteidigung, Qe7 > 60s.
r3r2k/p1pq3p/R3bppN/2P5/1p1pP1P1/3P4/2P2P1P/3Q2RK b - - bm Qe7; id "Qe7, 89";
Fail with 1:36
----
93. ENET-2023 093 - Königsangriff, h5! > 60s.
3r1rk1/pbq1bp1p/1n1Rp1p1/2p1P1N1/4N2P/1P3Q2/PB3PP1/K6R w - - bm h5; id "h5!, 93";
Stockfish's Qg3 is clearing winning
----
100. ENET-2023 100 - Mittelspiel, Re8! > 60s.
1nrq1rk1/1Q3ppp/p1pbpn2/8/1P1PP3/P4NP1/3N1P1P/R1B2BK1 b - - bm Re8; id "Re8!, 100";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
39/58 00:31 997,958k 32,078k +0.04 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Nd5 Rb1 Rd7 Ndc4 Nc3 Re1 Nb5 Rd1 Rfd8 Bh3 Nxd6 Bxd7 Nxc4 Nxc4 Rxd7 Rxd7 Nxd7 Kf1 Nb8 Na5 Kf8 Ke2 Ke7 Kd3 Kd6 Kc4 Nc6 Nb7+ Kc7 Nc5 a5
40/67- 00:33 1,065,095k 32,094k +0.01 Be7
40/67 00:36 1,175,950k 31,989k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 Ndc4 cxb4 axb4 Nf6 Bg2 Be7 Bc3 Rd8 d5 exd5 Bd4 Rad7 Ne5 Rd6 exd5 Nxd5 Nb7 Nxb4 Nxd8 Rxd8 Bb6 Rc8 Ba5 g6 Rb1 N8c6 Rc1 Na7 Rb1
41/59 00:40 1,286,668k 31,952k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nb3 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Rd7 Ndc4 Ne4 Rd1 Rfd8 Bg2 Nxd6 Ne5 Rc7 Nec6 Nxc6 Nxc6 Rdd7 Nb8 Rd8
42/72 00:42 1,344,112k 31,831k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Rd7 Ndc4 Ne4 Rd1 Rfd8 Bg2 Nxd6 Ne5 Rc7 Nec6 Nxc6 Nxc6 Rdd7 Nb8 Rd8 Nc6
43/39 00:42 1,347,429k 31,829k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Rd7 Ndc4 Ne4 Rd1 Rfd8 Bg2 Nxd6 Ne5 Rc7 Nec6 Nxc6 Nxc6 Rdd7 Nb8 Rd8 Nc6
44/66 00:45 1,447,742k 31,673k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Rd7 Ndc4 Ne4 Rd1 Rfd8 Bh3 Nxd6 Bxd7 Nxc4 Nxc4 Rxd7 Rxd7 Nxd7 Kf1 Nf6 Ne5 Nd5 Nc6 f6 Ke2 Kf7 Kd3 Ke6 Kc4 Nb6+ Kd4 Nd7 f4 Kd6 Na5 f5 Nc4+ Kc6 Ne5+ Nxe5 fxe5 h6 h3 g5 h4 Kd7 Kd5 Ke7 hxg5
45/70+ 00:49 1,564,024k 31,380k +0.02 Be7 Rb1
45/70- 00:54 1,683,216k 31,163k 0.00 Re8
45/70- 00:59 1,845,735k 31,233k -0.47 Re8
----
101. ENET-2023 101 - Damenausfall, Qh5! > 60s.
r1b2rk1/pp1n1ppp/4p3/3pP3/1bPNnB1q/2NB2P1/PPQ2P1P/R3K2R b KQ - bm Qh5; id "Qh5!, 101";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
43/30- 00:19 552,214k 28,697k +0.02 Qh3
43/30 00:19 569,219k 28,652k 0.00 Qh3 0-0-0 Nxc3 bxc3 Ba3+ Kb1 Nb6 Bf1 Qh5 Be2 Qg6 Bd3 Qh5 h4 dxc4 Be4 Bd7 g4 Qxg4 Qd2 Qh5 Rdg1 Bc6 Nxc6 bxc6 Rg5 Qh6 Rg3 Qh5
44/21+ 00:22 633,385k 28,526k +0.03 Qh3 0-0-0
44/28+ 00:26 752,490k 28,239k +0.06 Qh3 0-0-0
44/50+ 00:43 1,220,474k 27,946k +0.14 Qh3 0-0-0
44/50- 00:48 1,361,010k 27,984k +0.10 Qh5
44/50- 00:52 1,460,776k 27,983k +0.10 Qh5
45/47 00:52 1,460,776k 27,983k +0.08 Qh5 0-0 g5 cxd5 Bxc3 bxc3 exd5 Be3 Nxe5 f3 Nc5 Bf5 f6 Kg2 g4 fxg4 Nxg4 Bg1 Ne5 Bxc8 Raxc8 Nf5 Rc7 Qd2 Kh8 Rae1 b6 Bxc5 Rxc5 h3 Qg6 g4 Rc4 Kh1 Qg8 Nd4 Rcc8 Re2 a5 Nf5 Rc7
----
110. ENET-2023 110 - Entlastung, Nd5 > 60s.
1r3rk1/1bqnbpp1/p2ppn1B/1p6/4PP1Q/PNNB4/1PP3PP/1K1R3R b - - bm Nd5; id "Nd5, 110";
Already discussed that Stockfish's gxh6 achieves the same objective result. Nd5 is purely subjective.
89. ENET-2023 089 - Taktik, Verteidigung, Qe7 > 60s.
r3r2k/p1pq3p/R3bppN/2P5/1p1pP1P1/3P4/2P2P1P/3Q2RK b - - bm Qe7; id "Qe7, 89";
Fail with 1:36
----
93. ENET-2023 093 - Königsangriff, h5! > 60s.
3r1rk1/pbq1bp1p/1n1Rp1p1/2p1P1N1/4N2P/1P3Q2/PB3PP1/K6R w - - bm h5; id "h5!, 93";
Stockfish's Qg3 is clearing winning
----
100. ENET-2023 100 - Mittelspiel, Re8! > 60s.
1nrq1rk1/1Q3ppp/p1pbpn2/8/1P1PP3/P4NP1/3N1P1P/R1B2BK1 b - - bm Re8; id "Re8!, 100";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
39/58 00:31 997,958k 32,078k +0.04 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Nd5 Rb1 Rd7 Ndc4 Nc3 Re1 Nb5 Rd1 Rfd8 Bh3 Nxd6 Bxd7 Nxc4 Nxc4 Rxd7 Rxd7 Nxd7 Kf1 Nb8 Na5 Kf8 Ke2 Ke7 Kd3 Kd6 Kc4 Nc6 Nb7+ Kc7 Nc5 a5
40/67- 00:33 1,065,095k 32,094k +0.01 Be7
40/67 00:36 1,175,950k 31,989k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 Ndc4 cxb4 axb4 Nf6 Bg2 Be7 Bc3 Rd8 d5 exd5 Bd4 Rad7 Ne5 Rd6 exd5 Nxd5 Nb7 Nxb4 Nxd8 Rxd8 Bb6 Rc8 Ba5 g6 Rb1 N8c6 Rc1 Na7 Rb1
41/59 00:40 1,286,668k 31,952k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nb3 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Rd7 Ndc4 Ne4 Rd1 Rfd8 Bg2 Nxd6 Ne5 Rc7 Nec6 Nxc6 Nxc6 Rdd7 Nb8 Rd8
42/72 00:42 1,344,112k 31,831k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Rd7 Ndc4 Ne4 Rd1 Rfd8 Bg2 Nxd6 Ne5 Rc7 Nec6 Nxc6 Nxc6 Rdd7 Nb8 Rd8 Nc6
43/39 00:42 1,347,429k 31,829k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Rd7 Ndc4 Ne4 Rd1 Rfd8 Bg2 Nxd6 Ne5 Rc7 Nec6 Nxc6 Nxc6 Rdd7 Nb8 Rd8 Nc6
44/66 00:45 1,447,742k 31,673k 0.00 Be7 Bb2 Rc7 Qb6 Nfd7 Qa5 Ra7 Nc4 Qxa5 Nxa5 Bd8 Nd2 c5 d5 cxb4 axb4 exd5 exd5 Bf6 Bxf6 Nxf6 d6 Rd7 Ndc4 Ne4 Rd1 Rfd8 Bh3 Nxd6 Bxd7 Nxc4 Nxc4 Rxd7 Rxd7 Nxd7 Kf1 Nf6 Ne5 Nd5 Nc6 f6 Ke2 Kf7 Kd3 Ke6 Kc4 Nb6+ Kd4 Nd7 f4 Kd6 Na5 f5 Nc4+ Kc6 Ne5+ Nxe5 fxe5 h6 h3 g5 h4 Kd7 Kd5 Ke7 hxg5
45/70+ 00:49 1,564,024k 31,380k +0.02 Be7 Rb1
45/70- 00:54 1,683,216k 31,163k 0.00 Re8
45/70- 00:59 1,845,735k 31,233k -0.47 Re8
----
101. ENET-2023 101 - Damenausfall, Qh5! > 60s.
r1b2rk1/pp1n1ppp/4p3/3pP3/1bPNnB1q/2NB2P1/PPQ2P1P/R3K2R b KQ - bm Qh5; id "Qh5!, 101";
Stockfish_8_Mar_2023:
Found 510 tablebases
NNUE evaluation using nn-52471d67216a.nnue enabled
43/30- 00:19 552,214k 28,697k +0.02 Qh3
43/30 00:19 569,219k 28,652k 0.00 Qh3 0-0-0 Nxc3 bxc3 Ba3+ Kb1 Nb6 Bf1 Qh5 Be2 Qg6 Bd3 Qh5 h4 dxc4 Be4 Bd7 g4 Qxg4 Qd2 Qh5 Rdg1 Bc6 Nxc6 bxc6 Rg5 Qh6 Rg3 Qh5
44/21+ 00:22 633,385k 28,526k +0.03 Qh3 0-0-0
44/28+ 00:26 752,490k 28,239k +0.06 Qh3 0-0-0
44/50+ 00:43 1,220,474k 27,946k +0.14 Qh3 0-0-0
44/50- 00:48 1,361,010k 27,984k +0.10 Qh5
44/50- 00:52 1,460,776k 27,983k +0.10 Qh5
45/47 00:52 1,460,776k 27,983k +0.08 Qh5 0-0 g5 cxd5 Bxc3 bxc3 exd5 Be3 Nxe5 f3 Nc5 Bf5 f6 Kg2 g4 fxg4 Nxg4 Bg1 Ne5 Bxc8 Raxc8 Nf5 Rc7 Qd2 Kh8 Rae1 b6 Bxc5 Rxc5 h3 Qg6 g4 Rc4 Kh1 Qg8 Nd4 Rcc8 Re2 a5 Nf5 Rc7
----
110. ENET-2023 110 - Entlastung, Nd5 > 60s.
1r3rk1/1bqnbpp1/p2ppn1B/1p6/4PP1Q/PNNB4/1PP3PP/1K1R3R b - - bm Nd5; id "Nd5, 110";
Already discussed that Stockfish's gxh6 achieves the same objective result. Nd5 is purely subjective.
-
- Posts: 1439
- Joined: Sat Oct 27, 2018 12:58 am
- Location: Germany
- Full name: N.N.
Re: Chess Engine Leptir
Well, everything is ultimately subjective if it can't be proven to win. If 0.00 is a draw and -0.50 is still a draw, you can play both.
But the fact is that after gxh6 there are a series of losses on the server, I also lost a game. But of course I didn't play with 16 cores, only with 6. After Nd5 I even hold a draw with only one core. Even as a human it's harder to keep your balance after gxh6.
Anything else. My Opinion: Everyone knows that Stockfish is extremely well tuned for very short thinking times. The search of the engine is extremely good when it comes to a few seconds and even less. Time management is also trained during fish cooking (timeman settings). A few weeks ago, a developer spent days tuning the Timeman. But that doesn't do me any good because I don't play bullet. I was just testing to see how much weaker Leptir was. After 312 bullet games it is currently 50% to 50%. I will make all games available for download. Then I'd rather take an engine that is the better for position tests.
But the fact is that after gxh6 there are a series of losses on the server, I also lost a game. But of course I didn't play with 16 cores, only with 6. After Nd5 I even hold a draw with only one core. Even as a human it's harder to keep your balance after gxh6.
Anything else. My Opinion: Everyone knows that Stockfish is extremely well tuned for very short thinking times. The search of the engine is extremely good when it comes to a few seconds and even less. Time management is also trained during fish cooking (timeman settings). A few weeks ago, a developer spent days tuning the Timeman. But that doesn't do me any good because I don't play bullet. I was just testing to see how much weaker Leptir was. After 312 bullet games it is currently 50% to 50%. I will make all games available for download. Then I'd rather take an engine that is the better for position tests.
-
- Posts: 1439
- Joined: Sat Oct 27, 2018 12:58 am
- Location: Germany
- Full name: N.N.
Re: Chess Engine Leptir
Leptir N1 Bullet-Test vs SF dev:
Ryzen 3900X
3 cores/engine 7500 kns in Startposition
GUI Powerfritz 18
Hash 128 MB
all 3456men Syzygy GUI and Engine
Ponder ON
Timecontrol 60s + 0.1s
Noomen 3move book, first 250 variants
Engine Settings (both engines)

Leptir N1 vs Stockfish dev 140323:
Final standing

Download Games (PGN and CBH):
https://pixeldrain.com/u/CYCJ6o6M
Ryzen 3900X
3 cores/engine 7500 kns in Startposition
GUI Powerfritz 18
Hash 128 MB
all 3456men Syzygy GUI and Engine
Ponder ON
Timecontrol 60s + 0.1s
Noomen 3move book, first 250 variants
Engine Settings (both engines)

Leptir N1 vs Stockfish dev 140323:
Final standing

Download Games (PGN and CBH):
https://pixeldrain.com/u/CYCJ6o6M
-
- Posts: 12782
- Joined: Wed Mar 08, 2006 8:57 pm
- Location: Redmond, WA USA
Re: Chess Engine Leptir
Here are my computer evaluations for Eduard's interesting chess set:
It includes lots of evaluations for most every position. Since many of these are from old chess problem sets, they have been analyzed many times over the years.
It includes lots of evaluations for most every position. Since many of these are from old chess problem sets, they have been analyzed many times over the years.
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.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
-
- Posts: 1439
- Joined: Sat Oct 27, 2018 12:58 am
- Location: Germany
- Full name: N.N.
Re: Chess Engine Leptir
Unbelievable!
I implemented a POSITION in my test set that was criticized here.
This (position 110):
1r3rk1/1bqnbpp1/p2ppn1B/1p6/4PP1Q/PNNB4/1PP3PP/1K1R3R b - - 0 16
I just got a game played with Eman 8.81 from a supercomputer with 1500 threads! And what happened? It's hard to believe, but Eman played the immediate losing move 18...Nxf4 {3.38/33 33} after 33s.
[pgn][Event "Rated game, 5 min"]
[Site "Engine Room"]
[Date "2023.03.18"]
[Round "?"]
[White "K-999, Stockfish dev-20230"]
[Black "CLUSTER, EMAN 8.81 CLUSTER 6"]
[Result "1-0"]
[ECO "B97"]
[WhiteElo "2942"]
[BlackElo "2941"]
[Annotator "5.27;0.01"]
[PlyCount "147"]
[EventDate "2023.03.18"]
[SourceTitle "playchess.com"]
[TimeControl "300"]
{Stockfish dev-20230314-f0556dcb (36 cores): 37.5 plies; 39,297kN/s Intel(R) Xeon(R) CPU E5-2686 v3 @ 2.00GHz 1995MHz, (36 cores, 72 threads), Shortbook 1.2.ctg, 0 MB} 1. e4 {B 1} c5 {B 0} 2. Nf3 {B 0} d6 {B 0} 3. d4 {B 0} cxd4 {B 0} 4. Nxd4 {B 0} Nf6 {B 0} 5. Nc3 {B 0} a6 {B 0} 6. Bg5 {B 0} e6 {B 0} 7. f4 {B 0} Qb6 {B 0} 8. Nb3 {B 0} Nbd7 {0.01/33 6} 9. Qe2 {B 0 (Qd2)} Qc7 {-0.09/39 5} 10. O-O-O {B 0 (a3)} b5 {0.00/45 28} 11. a3 {B 0} Be7 {0.01/39 18} 12. Kb1 {B 0} Rb8 {0.00/36 3} 13. Qe1 {B 0} Bb7 {0.00/46 17} 14. Bd3 {B 0} O-O {0.00/40 2} 15. Qh4 {B 0 (Rf1)} h6 {0.00/42 4} 16. Bxh6 {B 0} gxh6 {0.00/46 3} 17. g4 {B 0 (Qxh6)} Nd5 {-1.81/29 6} 18. Qxh6 {B 0 (g5)} Nxf4 {3.38/33 33} 19. e5 {B 0} Nxd3 {3.48/31 8} 20. Rxd3 {B 0} Bg2 {3.54/30 9} 21. exd6 {B 0} Bxd6 {3.59/33 9} 22. Qg5+ {B 0} Kh7 {3.77/28 11} 23. Rhd1 {B 0} b4 {3.70/28 4} 24. Rxd6 {B 0} bxc3 {3.61/25 4} 25. Rxd7 {B 0} Qxh2 {3.71/27 7} 26. Qf6 {B 0} Kg8 {3.67/26 7} 27. Qxc3 {B 0} Qh8 {3.92/27 14} 28. Qe3 {B 0 (R7d4)} Rb5 {3.27/23 2} 29. Rg1 {B 0} Re5 {3.91/27 10} 30. Qf2 {B 0} Bd5 {4.47/27 7} 31. Nc5 {B 0} Qh3 {4.53/28 6} 32. Rd6 {B 0} Qe3 {4.67/27 4} 33. Qxe3 {B 0} Rxe3 {4.54/23 1} 34. Nd7 {B 0} Rc8 {4.70/27 3} 35. Nf6+ {B 0} Kg7 {4.81/20 0} 36. Nxd5 {B 0} exd5 {4.80/22 0} 37. Rg2 {B 0} a5 {4.73/31 2} 38. Rxd5 {5.27/39 22} a4 {5.70/35 0} 39. Rd4 {5.49/33 9} Ra8 {6.14/31 0} 40. Rf2 {5.60/35 9} Re7 {6.19/31 0} 41. Rff4 {5.66/37 7} Rea7 {6.19/28 0} 42. Rb4 {5.70/45 9 (Ka2)} Kg6 {6.19/19 1} 43. Rb6+ {5.78/31 7} Kg7 {6.52/29 0} 44. c3 {5.80/61 15} Kg8 {6.40/34 0} 45. Ka2 {6.00/35 26} Kf8 {6.57/31 0} 46. Rb5 {6.13/29 6 (Rd4)} Re8 {6.44/21 1} 47. Rbb4 {6.25/28 5} Rea8 {6.32/24 0} 48. c4 {6.59/29 13 (Rf5)} Rc8 {7.06/20 1} 49. Rb5 {6.76/26 5} Ke7 {7.11/26 0} 50. c5 {6.95/26 5 (Rbf5)} f6 {6.60/18 1} 51. Rc4 {7.25/26 5 (Rbb4)} Kd7 {5.95/14 0} 52. Rb6 {7.52/25 5 (Rbb4)} Rc6 {5.81/12 0} 53. Rd4+ {198.57/25 23 (Rbb4)} Kc7 {5.88/13 0} 54. Rxc6+ {199.15/30 4 (Rf4)} Kxc6 {4.99/14 0} 55. Rd6+ {199.47/33 7} Kxc5 {7.43/30 0} 56. Rxf6 {199.57/33 3} Rg7 {8.32/37 0} 57. Rf5+ {199.65/34 3 (Rf4)} Kb6 {7.41/14 0} 58. g5 {199.72/48 3 (Rf4)} Kc7 {4.62/9 0} 59. Rf4 {199.84/74 5 (Ra5)} Rxg5 {9.45/13 0} 60. Rxa4 {199.99/78 24} Kb6 {13.75/44 0} 61. Rc4 {200.00/75 6 (Rb4+)} Re5 {9.51/12 0} 62. Rb4+ {200.00/71 2 (a4)} Kc5 {8.50/12 0} 63. Rf4 {200.00/77 1} Re1 {13.75/36 0} 64. a4 {200.00/41 2} Re3 {13.75/36 0} 65. b3 {200.00/65 1} Kb6 {13.75/39 0} 66. Ka3 {200.00/74 1 (Rb4+)} Rxb3+ {7.79/15 0} 67. Kxb3 {#10/72 2} Ka6 {87.95/18 0} 68. Rb4 {#7/245 1 (Rf6+)} Ka7 {15.17/17 0} 69. Kc4 {#6/245 0} Ka6 {#5/48 0} 70. Kc5 {#5/245 0} Ka7 {#4/248 0} 71. Rb6 {#4/245 0} Ka8 {#3/248 0} 72. Kc6 {#3/245 0} Ka7 {#2/248 0} 73. Kc7 {#2/245 0} Ka8 {#1/248 0} 74. Ra6# {#1/245 0} 1-0[/pgn]
Something like this happens on the server in series.
However, I believe that Eman Cluster was compiled or configured incorrectly. Playing something like this with 1500 threads is amazing bad.
I implemented a POSITION in my test set that was criticized here.
This (position 110):
1r3rk1/1bqnbpp1/p2ppn1B/1p6/4PP1Q/PNNB4/1PP3PP/1K1R3R b - - 0 16
I just got a game played with Eman 8.81 from a supercomputer with 1500 threads! And what happened? It's hard to believe, but Eman played the immediate losing move 18...Nxf4 {3.38/33 33} after 33s.
[pgn][Event "Rated game, 5 min"]
[Site "Engine Room"]
[Date "2023.03.18"]
[Round "?"]
[White "K-999, Stockfish dev-20230"]
[Black "CLUSTER, EMAN 8.81 CLUSTER 6"]
[Result "1-0"]
[ECO "B97"]
[WhiteElo "2942"]
[BlackElo "2941"]
[Annotator "5.27;0.01"]
[PlyCount "147"]
[EventDate "2023.03.18"]
[SourceTitle "playchess.com"]
[TimeControl "300"]
{Stockfish dev-20230314-f0556dcb (36 cores): 37.5 plies; 39,297kN/s Intel(R) Xeon(R) CPU E5-2686 v3 @ 2.00GHz 1995MHz, (36 cores, 72 threads), Shortbook 1.2.ctg, 0 MB} 1. e4 {B 1} c5 {B 0} 2. Nf3 {B 0} d6 {B 0} 3. d4 {B 0} cxd4 {B 0} 4. Nxd4 {B 0} Nf6 {B 0} 5. Nc3 {B 0} a6 {B 0} 6. Bg5 {B 0} e6 {B 0} 7. f4 {B 0} Qb6 {B 0} 8. Nb3 {B 0} Nbd7 {0.01/33 6} 9. Qe2 {B 0 (Qd2)} Qc7 {-0.09/39 5} 10. O-O-O {B 0 (a3)} b5 {0.00/45 28} 11. a3 {B 0} Be7 {0.01/39 18} 12. Kb1 {B 0} Rb8 {0.00/36 3} 13. Qe1 {B 0} Bb7 {0.00/46 17} 14. Bd3 {B 0} O-O {0.00/40 2} 15. Qh4 {B 0 (Rf1)} h6 {0.00/42 4} 16. Bxh6 {B 0} gxh6 {0.00/46 3} 17. g4 {B 0 (Qxh6)} Nd5 {-1.81/29 6} 18. Qxh6 {B 0 (g5)} Nxf4 {3.38/33 33} 19. e5 {B 0} Nxd3 {3.48/31 8} 20. Rxd3 {B 0} Bg2 {3.54/30 9} 21. exd6 {B 0} Bxd6 {3.59/33 9} 22. Qg5+ {B 0} Kh7 {3.77/28 11} 23. Rhd1 {B 0} b4 {3.70/28 4} 24. Rxd6 {B 0} bxc3 {3.61/25 4} 25. Rxd7 {B 0} Qxh2 {3.71/27 7} 26. Qf6 {B 0} Kg8 {3.67/26 7} 27. Qxc3 {B 0} Qh8 {3.92/27 14} 28. Qe3 {B 0 (R7d4)} Rb5 {3.27/23 2} 29. Rg1 {B 0} Re5 {3.91/27 10} 30. Qf2 {B 0} Bd5 {4.47/27 7} 31. Nc5 {B 0} Qh3 {4.53/28 6} 32. Rd6 {B 0} Qe3 {4.67/27 4} 33. Qxe3 {B 0} Rxe3 {4.54/23 1} 34. Nd7 {B 0} Rc8 {4.70/27 3} 35. Nf6+ {B 0} Kg7 {4.81/20 0} 36. Nxd5 {B 0} exd5 {4.80/22 0} 37. Rg2 {B 0} a5 {4.73/31 2} 38. Rxd5 {5.27/39 22} a4 {5.70/35 0} 39. Rd4 {5.49/33 9} Ra8 {6.14/31 0} 40. Rf2 {5.60/35 9} Re7 {6.19/31 0} 41. Rff4 {5.66/37 7} Rea7 {6.19/28 0} 42. Rb4 {5.70/45 9 (Ka2)} Kg6 {6.19/19 1} 43. Rb6+ {5.78/31 7} Kg7 {6.52/29 0} 44. c3 {5.80/61 15} Kg8 {6.40/34 0} 45. Ka2 {6.00/35 26} Kf8 {6.57/31 0} 46. Rb5 {6.13/29 6 (Rd4)} Re8 {6.44/21 1} 47. Rbb4 {6.25/28 5} Rea8 {6.32/24 0} 48. c4 {6.59/29 13 (Rf5)} Rc8 {7.06/20 1} 49. Rb5 {6.76/26 5} Ke7 {7.11/26 0} 50. c5 {6.95/26 5 (Rbf5)} f6 {6.60/18 1} 51. Rc4 {7.25/26 5 (Rbb4)} Kd7 {5.95/14 0} 52. Rb6 {7.52/25 5 (Rbb4)} Rc6 {5.81/12 0} 53. Rd4+ {198.57/25 23 (Rbb4)} Kc7 {5.88/13 0} 54. Rxc6+ {199.15/30 4 (Rf4)} Kxc6 {4.99/14 0} 55. Rd6+ {199.47/33 7} Kxc5 {7.43/30 0} 56. Rxf6 {199.57/33 3} Rg7 {8.32/37 0} 57. Rf5+ {199.65/34 3 (Rf4)} Kb6 {7.41/14 0} 58. g5 {199.72/48 3 (Rf4)} Kc7 {4.62/9 0} 59. Rf4 {199.84/74 5 (Ra5)} Rxg5 {9.45/13 0} 60. Rxa4 {199.99/78 24} Kb6 {13.75/44 0} 61. Rc4 {200.00/75 6 (Rb4+)} Re5 {9.51/12 0} 62. Rb4+ {200.00/71 2 (a4)} Kc5 {8.50/12 0} 63. Rf4 {200.00/77 1} Re1 {13.75/36 0} 64. a4 {200.00/41 2} Re3 {13.75/36 0} 65. b3 {200.00/65 1} Kb6 {13.75/39 0} 66. Ka3 {200.00/74 1 (Rb4+)} Rxb3+ {7.79/15 0} 67. Kxb3 {#10/72 2} Ka6 {87.95/18 0} 68. Rb4 {#7/245 1 (Rf6+)} Ka7 {15.17/17 0} 69. Kc4 {#6/245 0} Ka6 {#5/48 0} 70. Kc5 {#5/245 0} Ka7 {#4/248 0} 71. Rb6 {#4/245 0} Ka8 {#3/248 0} 72. Kc6 {#3/245 0} Ka7 {#2/248 0} 73. Kc7 {#2/245 0} Ka8 {#1/248 0} 74. Ra6# {#1/245 0} 1-0[/pgn]
Something like this happens on the server in series.

However, I believe that Eman Cluster was compiled or configured incorrectly. Playing something like this with 1500 threads is amazing bad.