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improve one mate and add new PVs #53

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Apr 6, 2024
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improve one mate and add new PVs #53

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bb6066c
improve one mate and add new PVs
robertnurnberg Apr 4, 2024
f7ffc9f
add one more PV
robertnurnberg Apr 4, 2024
8f7e691
add one more PV
robertnurnberg Apr 6, 2024
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2 changes: 1 addition & 1 deletion README.md
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Expand Up @@ -20,7 +20,7 @@ and is visualized in the graphs below.
* `ChestUCI_23102018.epd`: the original suite derived from publicly available `ChestUCI.epd` files, see [FishCooking](https://groups.google.com/g/fishcooking/c/lh1jTS4U9LU/m/zrvoYQZUCQAJ). It contains 6561 positions, with one draw, two positions that are likely draws due to the 50 move rule, some illegal positions and some positions with a sub-optimal value for the fastest known mate.
* **`matetrack.epd`**: The successor to `ChestUCI_23102018.epd`, with all illegal positions removed and all known errors corrected. The plots shown above are based on this file. It contains 6558 mate problems, ranging from mate in 1 (#1) to #126 for positions with between 4 and 32 pieces. In 26 positions the side to move is going to get mated.
* `matetrackpv.epd`: The same as `matetrack.epd`, but for each position the file also includes a PV leading to the checkmate, if such a PV is known.
* `matedtrack.epd`: Derived from `matetrackpv.epd` by applying a best move in all those positions, where the winning side is to move, and where a best move is known. The order of the positions in `matedtrack.epd` corresponds 1:1 to the order in `matetrack.epd`. So the new test suite still contains 6558 mate problems, but for 6511 of them the side to move is going to get mated.
* `matedtrack.epd`: Derived from `matetrackpv.epd` by applying a best move in all those positions, where the winning side is to move, and where a best move is known. The order of the positions in `matedtrack.epd` corresponds 1:1 to the order in `matetrack.epd`. So the new test suite still contains 6558 mate problems, but for 6520 of them the side to move is going to get mated.

### Automatic creation of new test positions

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20 changes: 10 additions & 10 deletions matedtrack.epd
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Original file line number Diff line number Diff line change
Expand Up @@ -6434,13 +6434,13 @@ k7/rn1N4/n1B4p/3N4/5p1p/b3pP2/P3P1P1/3K4 b - - bm #-34;
8/6r1/5pP1/4p3/3p3p/3R2p1/p1pBp3/4k1K1 b - - bm #-35;
8/pp3p2/8/5N2/2p1p3/2p1B3/1pp1k1NK/brrb4 b - - bm #-35;
8/1rp3p1/1p4N1/1P1P4/P1K3P1/1pBP1B2/pPp5/1bk5 w - - bm #36;
8/8/8/1p6/6k1/1Q6/p1p1p3/rbrbK3 b - - bm #-35;
7n/3p1p2/3p1Pp1/1p3pP1/5P1K/3B1P2/1p3P1p/1N1k2bR b - - bm #-36;
8/5p2/2p5/2p2n2/p7/K7/2r4p/1k2Q2n b - - bm #-36;
1R6/6pK/5p2/4p3/3p3n/B7/p1p1pp2/1k3b2 b - - bm #-37;
8/1p3ppp/8/1p6/1P6/1P3p1p/k1K3pr/2B3Nb b - - bm #-37;
8/2p2p2/5p2/5p2/2B2p2/p2n4/kp1K1p2/b4r2 b - - bm #-37;
6kB/3K2P1/4r1P1/3R2P1/3P4/3P1p1p/B4P1P/8 b - - bm #-37;
8/8/8/1p6/6k1/1Q6/p1p1p3/rbrbK3 b - - bm #-37;
5R2/4p3/4p3/4p3/4p3/4p1B1/1P2Prpp/KR1Bkrqb b - - bm #-38;
8/p3p2p/p4p2/p3b3/Pp4N1/kP6/Pp6/1K6 b - - bm #-38;
8/8/7P/5P2/6k1/4p3/ppp1p3/brrbK3 b - - bm #-38;
Expand All @@ -6459,7 +6459,7 @@ k1b5/1p1p3p/1p1Pp3/pP2Pp2/P4P2/p1K2P2/P4P2/8 b - - bm #-40;
8/p7/Qp6/8/6p1/Np3pP1/pp1KpP2/1k6 b - - bm #-41;
8/8/1pBp4/1Pkp4/p2p1p2/p2PbP2/N7/1K6 b - - bm #-42;
8/5p2/7p/2K5/p7/1p5p/rp3ppr/bQ1N1bqk b - - bm #-42;
7k/8/5p2/8/8/8/P1Kp1pp1/4brrb w - - bm #43; 00:05+ @ C2/R0/K0/P2/X9;
7k/8/5p2/8/8/8/P2p1pp1/3Kbrrb b - - bm #-42;
4B3/2p4b/1pP1p1p1/pPb1PkP1/5P2/2p1nK2/p1N1P3/8 b - - bm #-42;
k7/1p6/8/7P/1p6/8/ppp1p3/rqrbK3 b - - bm #-42;
7Q/prpp1K1P/np6/8/N7/5p2/p4p2/k1b2r1b b - - bm #-42;
Expand All @@ -6473,7 +6473,7 @@ r3B3/p7/5pp1/4p1B1/8/3R3K/p1p1p2p/3k3r b - - bm #-44;
5k2/p1p1pP2/4P1p1/p5P1/8/P1p1B3/P1p5/K7 b - - bm #-44;
2b4b/Pr1p3P/qP1p4/1R1n4/8/n6r/7P/k5QK b - - bm #-44;
2N5/p4P2/p4RqP/P2krb2/5RNK/2PPBPP1/3P1p2/5Q2 b - - bm #-45;
8/1p6/8/3p3k/3p4/6Q1/pp1p4/rrbK4 w - - bm #46; Duals(4); 00:12+ @ C2/R0/K5/P3/X6;
8/1p6/8/3p3k/3p1Q2/8/pp1p4/rrbK4 b - - bm #-45;
4Kb1r/p3p1p1/4P1Pp/7P/8/p2N2p1/P4brp/2NRnkqn b - - bm #-45;
2N5/p4P2/p4RqP/P2krb2/5RNK/2PPB1P1/3P1pP1/4nQ2 b - - bm #-46;
5q1k/Q7/n1P4R/3bpp2/3n4/2p5/1pP3RP/7K b - - bm #-46;
Expand All @@ -6496,12 +6496,12 @@ k1b5/1pBp1p1p/1P1PpP2/1p4P1/4p3/8/1p2P3/bK6 b - - bm #-49;
8/3p1p1p/3p4/8/5N2/5bpp/1K1Npp1r/5k1r b - - bm #-49;
8/5p1p/7K/8/p7/rp5p/1p3ppr/bQ1N1bqk b - - bm #-50;
6n1/4p1P1/4PpP1/1p3p1K/bp3p2/rk2pP2/p1r1P3/B2Q4 b - - bm #-50;
8/5p1p/8/8/p3Q2K/rp5p/1p3ppr/b2N1bqk w - - bm #53; --:-- @ C0/R0/K1/P5/X11;
8/5p1p/8/8/p6K/rp5p/1p3ppr/bQ1N1bqk b - - bm #-52;
8/7p/7p/7p/1p3Q1p/1Kp5/nppr4/qrk5 w - - bm #54; 00:12+ @ C2/R0/K2/P4/X18;
rrk1N3/pRn2Np1/PbBp1pp1/3P4/K1pP3n/2p5/2P3p1/6Bb b - - bm #-54;
8/1p6/4k3/8/3p1Q2/3p4/pp1p4/rrbK4 w - - bm #56; 00:16+ @ C2/R0/K7/P2/X6;
8/1pQ5/4k3/8/3p4/3p4/pp1p4/rrbK4 b - - bm #-55;
k1b5/1p1p1p1p/1PpPpP2/8/3B4/2p1p2P/2PbP3/3K4 b - - bm #-55;
8/6pp/5p2/k7/3p4/1Q2p3/3prpp1/3Kbqrb w - - bm #57; --:-- @ C6/R0/K6/P5/X9;
8/6pp/5p2/k7/2Qp4/4p3/3prpp1/3Kbqrb b - - bm #-56;
1n6/k2p4/p1pPp3/P1P1Pp2/5p2/5P2/2P2P2/4K3 w - - bm #57;
7n/ppp2p2/2N2Pp1/6B1/8/8/p1p2P1p/rbNk1KbR b - - bm #-56;
8/p1p2p2/8/2P1pP1K/4P2B/6Pr/ppp3p1/kqb1N1Rb b - - bm #-56;
Expand All @@ -6520,15 +6520,15 @@ nb6/2p5/1pP2K2/1P4p1/6p1/1p5n/1P2N1br/3NRn1k b - - bm #-61;
6n1/2p5/r6p/3Q1b1p/8/p1K1p1p1/kp3p2/q4r1n b - - bm #-63;
8/p1p3Pr/p1p2P2/7p/7k/6p1/p1p3P1/rbK5 w - - bm #64;
4n3/2p3p1/1pP1p1P1/1P1bP3/2p1p1N1/1pPkPp2/1P3P2/3NK3 w - - bm #65;
8/pp2Kp1B/1p2prrb/4pkpN/1p2n1n1/8/P1P5/4N3 w - - bm #65;
8/pp2Kp1B/1p2prrb/4pkpN/1p2n1n1/8/P1P3N1/8 b - - bm #-64;
8/p2K2p1/rp6/1p2p3/brpn4/Rnk5/4p1p1/2B1N1N1 b - - bm #-65;
4n3/2p3p1/1pP1p1n1/1P1bP2P/1pp1p1N1/2PkPp2/1P3P2/3NK3 w - - bm #66;
8/Pk2p1pp/1Pp1P3/KpP5/2p3p1/2Pp4/3P1P1P/8 w - - bm #66;
8/Pk2p1pp/1Pp1P3/1pP5/1Kp3p1/2Pp4/3P1P1P/8 b - - bm #-65;
kB3r2/2P3KB/P5P1/4r3/2N1n3/1RP4N/3b4/6RQ b - - bm #-66;
kB5K/2P4B/P4rP1/4r3/2N1n3/1RP4N/3b4/6RQ b - - bm #-67;
1K1n2q1/1p4pR/1prPPpPn/1RB1p1rP/2B5/4p3/2p2b2/1k2N3 b - - bm #-68;
4R3/pn1p1p1p/p2n4/8/8/p4p2/7p/5K1k w - - bm #69;
8/Pk2p1pp/1Pp1P3/1pP3p1/2p5/2Pp4/3P1P1P/7K w - - bm #69;
8/Pk2p1pp/1Pp1P3/1pP3p1/2p5/2Pp4/3P1PKP/8 b - - bm #-68;
7K/5p1p/3p2p1/6pr/4n1pb/3N1bk1/4prn1/4B1RR b - - bm #-69;
8/1p1p2p1/5p1p/5P1P/1p1p1P2/pP1P1P2/P1B5/k1K5 b - - bm #-70;
k1b5/1p1p4/pP1Pp3/3pPp2/KP1p1P2/3P1P2/5P2/8 b - - bm #-71;
Expand All @@ -6540,7 +6540,7 @@ k7/B3p1p1/PPp1P3/4P2b/p4p1P/P1p2p2/2P2P1K/7B b - - bm #-73;
8/1p1p2p1/5p1p/5P1P/1p1p1P2/pP1P1P2/P1k5/4KB2 b - - bm #-81;
8/5ppp/5p2/8/NK6/1B1N4/2rpn1pp/2bk1brq w - - bm #87;
4Q3/ppp3p1/8/8/3p4/8/1ppp2K1/br2k2n b - - bm #-88;
8/1p1p4/3p2p1/5pP1/1p3P2/1P1p1P1k/1P1P1P1p/5K1B w - - bm #93; 00:03+ @ C2/R0/K3/P4/X6;
8/1p1p4/3p2p1/5pP1/1p3P2/1P1p1P1k/1P1P1P1p/4K2B b - - bm #-92;
8/pppp1P2/8/8/8/n7/1pppp2K/br1r1kn1 w - - bm #93;
7K/3p4/4p3/1p5p/p3n3/1p1N3p/rp2N1br/bR3n1k w - - bm #96;
8/p1p1p3/2p3p1/6Pb/p3P1k1/P1p1PNnr/2P1PKRp/7B w - - bm #100; 00:00+ @ C2/R0/K2/P6/X8;
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2 changes: 1 addition & 1 deletion matetrack.epd
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Original file line number Diff line number Diff line change
Expand Up @@ -6434,13 +6434,13 @@ k7/rn1N4/n1B4p/8/5p1p/b1N1pP2/P3P1P1/3K4 w - - bm #35;
8/6r1/5pPB/4p3/3p3p/3R2p1/p1p1p3/4k1K1 w - - bm #36; 00:00 @ C2/R1/K2/P2/X8;
8/pp3p2/8/8/2p1p2N/2p1B3/1pp1k1NK/brrb4 w - - bm #36; --:-- @ C30/R0/K4/P5/X10;
8/1rp3p1/1p4N1/1P1P4/P1K3P1/1pBP1B2/pPp5/1bk5 w - - bm #36;
8/8/8/1p6/6k1/1p2Q3/p1p1p3/rbrbK3 w - - bm #36;
7n/3p1p2/3p1Pp1/1p3pPK/5P2/3B1P2/1p3P1p/1N1k2bR w - - bm #37; --:-- @ C16/R0/K3/P5/X5; 00'53" (Gustav);
8/5p2/2p5/2p2n2/p3Q3/K7/2r4p/1k5n w - - bm #37;
1R6/6pK/5p2/4p3/1B1p3n/8/p1p1pp2/1k3b2 w - - bm #38; 00:00 @ C2/R1/K2/P4/X14;
8/1p3ppp/8/1p6/1P6/5p1p/kPK3pr/2B3Nb w - - bm #38; 00:00+ @ C14/R0/K2/P7/X16;
8/2p2p2/5p2/1B3p2/5p2/p2n4/kp1K1p2/b4r2 w - - bm #38; 00:35+ @ C0/R0/K2/P6/X10;
6kB/3K2P1/4r1P1/3R2P1/3P4/3P1p1p/5P1P/1B6 w - - bm #38;
8/8/8/1p6/6k1/1p2Q3/p1p1p3/rbrbK3 w - - bm #38;
8/4p3/4p3/4p3/4p3/4pRB1/1P2Prpp/KR1Bkrqb w - - bm #39; 00:00 @ C2/R0/K2/P2/X2;
8/p3p2p/p4p2/p3b3/Pp6/kP6/Pp5N/1K6 w - - bm #39; 00:02+ @ C2/R0/K1/P4/X16;
8/8/8/5P1P/6k1/4p3/ppp1p3/brrbK3 w - - bm #39; 00:06+ @ C2/R0/K0/P1/X8;
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