Author: Jon Dart
Date: 08:49:58 03/15/03
For a while, I have been using a collection of test positions from Arasan games called "arasan2.epd" - it is available at http://www.arasanchess.org/tests.zip. Recently I've started collecting some additional positions from recent games. Following are the ones I have so far. I am not sure all of the moves given are the best moves, or that there are not alternate solutions. The latest build of Arasan gets about half of these right at 60 seconds per move, on an Athlon 1.3GHz. 2b2rk1/1p2R2p/r1p3p1/p1qp1pP1/5P2/2N3P1/PPQ3K1/2R5 w - - bm Qe2; id "arasan3.1"; r4r2/1RPBppk1/3p1bp1/3P4/8/p1q5/Q5PP/1R5K b - - bm Rh8; id "arasan 3.2"; r1bk3r/pp1p2pp/q1nP1p2/4p3/2Np4/P2Q2P1/1R2PPBP/2R3K1 w - - bm Qf5; id "arasan 3.3"; r1bq1rk1/p1p3pp/2Q5/2bpPp2/4n3/5P2/PPP3PP/RNB1KB1R b KQ - bm Qh4+; id "arasan 3.4"; 2r1k1nr/p1Pq4/1p3p2/4pn1p/1B1p4/1N3Q2/PP2P1RP/2R4K w - - bm Nd2; id "arasan3.5"; r2qr1k1/pp1b2pp/2nBpp1n/6NQ/2B1N3/P3b3/1PP3PP/R4R1K w - - bm Nxf6+; id "arasan3.6"; 1n3rn1/3b4/rq1P1pkp/1p4p1/p1p1N1N1/2Q2B1P/1P3PP1/R3R1K1 w - - bm Nexf6; id "arasan3.7"; 2r2rk1/2qnbpp1/p4n2/3bp1pP/1p6/1N1BBP2/PPPQN3/2KR1R2 w - - bm h6; id "arasan3.8"; r1bq1rk1/ppp1bpp1/2np3p/3N3n/2P1PB2/3BQN2/PP3PPP/R3K2R w KQ - bm Bxh6+; id "arasan3.9"; 2r3k1/5pp1/1p5p/p1n1P3/2B2P2/P3Q3/1PP4q/1K4R1 w - - bm Qd4; id "arasan3.10"; r4r1k/1bpq2b1/p2p2Qp/1p1Pp3/P3P3/1PP3RP/2B2pPK/R4N2 w - - bm Ne3; id "arasan3.11"; 4k3/p2n1pp1/p5p1/2pPp1Pr/4PP2/2P1R2P/1r1q1Q1B/5RK1 b - - bm c4; id "arasan3.12"; 1q4k1/5p1p/5npR/1p1rp3/6P1/2P2N1P/1P3P2/2Q3K1 b - g3 bm Qd8; id "arasan3.13"; r4rk1/pb3ppp/1qn1pb2/1Npn2N1/1p6/2PP2P1/PP1B1PBP/R2QR1K1 w - - bm Nd6; id "arasan3.14"; 6k1/r1nn1pp1/7p/prP2P2/RpqPp1PP/4P3/RB3Q2/2N3K1 b - - bm Nd5; id "arasan3.15"; r2qr1k1/pp3pbp/6p1/n2P4/b7/3BBP2/P2QN1PP/2R2RK1 w - - bm Nf4; id "arasan3.16"; 8/8/5PbP/4k1P1/8/4B1K1/8/5r2 b - - bm Rf5; id "arasan3.17"; 2r1r1k1/1p3pb1/q2Pb1p1/p7/P5PP/1PNR4/2Q3BP/2BR1K2 b - - bm Bxg4; id "arasan3.18"; 2r2rk1/2q1bppn/3p4/p2P2P1/bp1BB2P/8/PPP2Q2/1K4RR w - - bm h5; id "arasan3.19"; 3r2k1/1Q3pp1/4pb1p/p7/2P5/qP3N2/5PPP/1R4K1 b - - bm Qb2; id "arasan3.20"; 4r3/3R4/6pk/2p3b1/3pp1P1/P7/1P5P/4R2K b - - bm Bh4; id "arasan3.21"; 6k1/r5p1/3P1b2/5p1p/p1N5/4PKP1/R6P/8 w - h6 bm e4; id "arasan3.22"; r2r2k1/pbpq1ppp/1pn1pn2/8/P2PP3/B1R2NP1/P1Q2PBP/3R2K1 w - - bm d5; id "arasan3.23"; 8/r4p2/4qp2/kp6/3b4/1P2pQ2/2R4P/1R5K b - - bm Kb4; id "arasan3.24"; 6k1/3r1p1p/P5pB/8/3b2q1/6P1/3N1P1P/4Q1K1 b - - bm Qe6; id "arasan3.25"; 8/pp2r3/3rk3/PR1p1p2/1NpP2p1/2P1PnPp/4KP1P/7R b - - bm a6; id "arasan3.26"; 1b6/4kPp1/Pp6/2p2K1B/2P5/3p4/8/8 w - - bm Ke4; id "arasan3.27"; 4r1k1/pppb3p/1n4p1/3P4/1bP2p2/qN3PPP/P1Q3B1/2R3KR w - - bm g4; id "arasan3.28"; 8/p4pkp/2P3p1/1p1PK3/2r2P2/8/P7/R7 w - - bm Kd6; id "arasan3.29"; 2r3k1/2r1b1p1/p1q3Pp/3pP3/1p6/1P2B2Q/2PR4/1K4R1 w - - bm Bxh6; id "arasan3.30"; r4rk1/pb1q2pp/1p6/2b1Bp2/2P1PP2/6P1/P2NQ2P/3RR2K b - - bm Rad8; id "arasan3.31"; 1r1qb1k1/6pp/3p1p2/2p2P1P/2PpP1Q1/p2P1NP1/Pr4R1/6RK b - - bm h6; id "arasan3.32"; 3rr3/kpq5/ppb1p3/5p2/2PP4/1R4P1/PQ5P/NR4K1 b - - bm f4; id "arasan3.33"; 4b3/1kp3Q1/1p2PKP1/8/8/3q4/8/B7 b - - bm Qd8+; id "arasan3.34";
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