Author: Uri Blass
Date: 15:42:21 09/17/02
Go up one level in this thread
On September 17, 2002 at 17:35:17, David Rasmussen wrote: >This is a test suite I've made. All positions are taken from 1001 Brilliant Ways >To Checkmate. Most of them aren't difficult as such. Still, all of these >positions weren't found as fast as I'd like with Chezzz, so they can be used for >tuning of extensions, mate search etc. Some of them (starting about BWTC.933 or >so) are positions where it isn't necesarily difficult to find _some_ mate, but >usually, the shortest mate (which is the point of these positions, which are >compositions) can't be found if you're using null move, for example. I don't >know if you can use this suite for anything, but I would like to see how your >programs are doing with it. I tested part of the positions with movei and here is the result(that version may have wrong pv in the last plies because of a bug in updating the pv in the qsearch but the number of moves t mate should be correct(10000-2x+1 means mate in x) > >2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - - bm Qh5+; id >"BWTC.31"; Movei(p850,128 mbytes hash) 15 seconds to fail high 21 seconds to see the mate 8 62 1489 2121110 e2h5 8 9981 2082 2918632 e2h5 f6h5 f5e6 f7g6 b3c2 g6g5 f1f5 g5g6 f5f6 g6g5 f6g6 g5h4 e1e4 h5f4 g2g3 h4h5 e4f4 d7e6 8 9981 2088 2923487 e2h5 f6h5 f5e6 f7g6 b3c2 g6g5 f1f5 g5g6 f5f6 g6g5 f6g6 g5h4 e1e4 h5f4 g2g3 h4h5 e4f4 d7e6 >r3k3/ppp2N2/3p1n2/2b1p3/2BnP1b1/2NP2p1/PPPQ1PPr/R4RK1 b q - bm Nf3+; id >"BWTC.406"; Movei 5 seconds to find the move,11 seconds to find the win,15 seconds to find the mate. 6 -310 472 603757 g4f3 f2g3 f6g4 f7d6 c7d6 f1f2 d4e2 g1f1 c5f2 c3e2 h2g2 6 -309 505 649690 d4f3 6 -300 516 666781 d4f3 g2f3 g4f3 c4b5 e8f8 d2h6 h2h6 f7h6 c5f2 f1f2 g3f2 g1f2 6 -300 521 673211 d4f3 g2f3 g4f3 c4b5 e8f8 d2h6 h2h6 f7h6 c5f2 f1f2 g3f2 g1f2 7 819 1126 1443347 d4f3 g2f3 g4f3 c4b5 e8f7 b5e8 a8e8 d2h6 h2h6 7 819 1158 1501520 d4f3 g2f3 g4f3 c4b5 e8f7 b5e8 a8e8 d2h6 h2h6 8 9987 1494 1941560 d4f3 g2f3 g4f3 c4b5 e8f7 d2h6 h2g2 g1h1 g2f2 h1g1 f2g2 g1h1 g2h2 8 9987 1559 2048022 d4f3 g2f3 g4f3 c4b5 e8f7 d2h6 h2g2 g1h1 g2f2 h1g1 f2g2 g1h1 g2h2 >1nbq1r1k/3rbp1p/p1p1pp1Q/1p6/P1pPN3/5NP1/1P2PPBP/R4RK1 w - - bm Nfg5; id >"BWTC.439"; This is harder 23 seconds to fail high but more than 2 minutes to find the mate 8 37 2307 3104780 f3g5 8 9993 12177 14108054 f3g5 f6g5 e4f6 e7f6 g2e4 b5a4 h6h7 8 9993 12194 14132179 f3g5 f6g5 e4f6 e7f6 g2e4 b5a4 h6h7 Maybe the pruning based on evaluation is the problem(all the move threat mate so I do not think that movei prune them based on null move because I expect qsearch to detect mate in 1 threats). >5r2/2p3pk/1r1p3b/p1q1p3/6R1/P2P1p2/BPPQ1P1P/2K3R1 w - - bm Qxh6+; id "BWTC.522"; only 0.11 seconds to fail high only 0.27 seconds to see the mate 5 1 11 19993 d2h6 5 445 17 22690 d2h6 g7h6 g4g7 h7h8 a2g8 c5c2 c1c2 b6c6 c2d2 f8g8 g7g8 h8h7 5 445 17 22706 d2h6 g7h6 g4g7 h7h8 a2g8 c5c2 c1c2 b6c6 c2d2 f8g8 g7g8 h8h7 6 856 17 26615 d2h6 g7h6 g4g7 h7h8 a2g8 f8f7 g7f7 c5c2 c1c2 b6c6 c2d2 6 856 22 39613 d2h6 g7h6 g4g7 h7h8 a2g8 f8f7 g7f7 c5c2 c1c2 b6c6 c2d2 7 9983 27 45890 d2h6 g7h6 g4g7 h7h8 a2g8 c5c2 c1c2 b6b2 c2b2 f8b8 b2c3 b8b3 c3b3 a5a4 b3a4 h6h5 g7c7 7 9983 44 75221 d2h6 g7h6 g4g7 h7h8 a2g8 c5c2 c1c2 b6b2 c2b2 f8b8 b2c3 b8b3 c3b3 a5a4 b3a4 h6h5 g7c7 >5rk1/4R1p1/pqpp3p/2bp1b1Q/5P2/2P4P/P2B2PK/4R3 w - - bm Rxg7+; id "BWTC.544"; Hard almost 3 minutes to fail high. almost 4 minutes to see the win. A long time to see the mate(probably depth 13,movei does not extend when it has a big advantage) 10 144 16038 23257049 e7g7 10 723 21212 30490129 e7g7 g8g7 e1e7 g7g8 h5h6 c5g1 h2h1 g1d4 c3d4 b6d4 h6g5 g8h8 g5h4 h8g8 h4g3 g8h8 d2c3 c6c5 c3d4 c5d4 10 723 21284 30615504 e7g7 g8g7 e1e7 g7g8 h5h6 c5g1 h2h1 g1d4 c3d4 b6d4 h6g5 g8h8 g5h4 h8g8 h4g3 g8h8 d2c3 c6c5 c3d4 c5d4 11 723 22717 32777261 e7g7 g8g7 e1e7 g7g8 h5h6 c5g1 h2h1 g1d4 c3d4 b6d4 h6g5 g8h8 g5h4 h8g8 h4g3 g8h8 d2c3 c6c5 c3d4 c5d4 11 723 23058 33355606 e7g7 g8g7 e1e7 g7g8 h5h6 c5g1 h2h1 g1d4 c3d4 b6d4 h6g5 g8h8 g5h4 h8g8 h4g3 g8h8 d2c3 c6c5 c3d4 c5d4 12 1718 69700 100512862 e7g7 g8g7 e1e7 g7g8 h5h6 c5g1 h2h1 g1d4 c3d4 b6d4 h6g5 g8h8 g5h4 h8g8 h4g3 g8h8 d2c3 d4c3 g3c3 d5d4 c3d4 f8f6 d4f6 h8g8 f6f5 12 1718 70348 101643896 e7g7 g8g7 e1e7 g7g8 h5h6 c5g1 h2h1 g1d4 c3d4 b6d4 h6g5 g8h8 g5h4 h8g8 h4g3 g8h8 d2c3 d4c3 g3c3 d5d4 c3d4 f8f6 d4f6 h8g8 f6f5 >r3nr1k/ppqbNpp1/7p/2p1p3/2B4Q/P4P2/1PP4P/2KR2R1 w - - bm Rxg7; id "BWTC.548"; 9 seconds to fail high 46 seconds to see the win. more than 5 minutes to see the mate 8 1 928 1277800 g1g7 8 1091 4559 5635651 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7c6 h4e7 a8c8 c4f7 8 1091 4569 5651411 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7c6 h4e7 a8c8 c4f7 9 1091 4998 6227468 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7c6 h4e7 a8c8 c4f7 9 1091 5229 6571820 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7c6 h4e7 a8c8 c4f7 10 1109 6041 7631430 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7c6 h4e7 g7h8 e7e5 h8g8 10 1109 6662 8619886 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7c6 h4e7 g7h8 e7e5 h8g8 11 1138 8502 11059243 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7b5 f8e6 f7e6 h4e7 g7g6 c4b5 e8f6 d1g1 g6f5 e7c5 11 1138 10100 13563094 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7b5 f8e6 f7e6 h4e7 g7g6 c4b5 e8f6 d1g1 g6f5 e7c5 12 1199 21931 28302963 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7c6 f8e6 g7h7 c4d3 f7f5 d3f5 h7g8 d1g1 g8h8 e6c5 12 1199 27578 37049406 g1g7 c7b6 g7g6 b6g6 e7g6 h8g7 g6f8 d7c6 f8e6 g7h7 c4d3 f7f5 d3f5 h7g8 d1g1 g8h8 e6c5 >2r3k1/pp3p1p/7r/3pq3/8/1RPQPpP1/P6P/3R2K1 b - - bm Rxh2; id "BWTC.632"; Again not an easy problem Movei is happy with the move but does not see the mate(when the score is so high it does not care about the exact score) 9 128 16824 22265974 h6h2 9 1217 23382 31318013 h6h2 g1h2 c8c6 d3a6 b7a6 b3b8 e5b8 d1d5 c6c3 d5g5 g8f8 9 1217 23421 31385790 h6h2 g1h2 c8c6 d3a6 b7a6 b3b8 e5b8 d1d5 c6c3 d5g5 g8f8 10 1247 24497 32865560 h6h2 10 1247 24959 33577255 h6h2 11 1424 34999 47010792 h6h2 g1h2 c8c6 b3b6 a7b6 d3h7 g8h7 h2g1 e5g3 g1f1 c6c3 e3e4 d5e4 11 1424 35966 48364359 h6h2 g1h2 c8c6 b3b6 a7b6 d3h7 g8h7 h2g1 e5g3 g1f1 c6c3 e3e4 d5e4 12 1454 44375 59800542 h6h2 12 1454 46649 63009311 h6h2 Uri
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