Yet Another Mate Solving Test
Posted: Fri Jan 14, 2011 9:42 am
I took hundred 11 movers from Chest database:
r3k3/p1pp2p1/K5p1/p5B1/2B5/4pR2/2P1p3/r1bb4 w q - bm #11; 00:00 @ C2/R1/K3/P9/X27;
r5k1/bp3pn1/b1p1p1n1/P2p2P1/B5N1/B5R1/K5N1/8 w - - bm #11; 00:00 @ C0/R1/K2/P7/X28;
r6q/8/b7/8/3N4/5N2/8/QK5k w - - bm #11; 00:00 @ C3/R0/K3/P2/X2;
R7/1Kpkr1q1/2p1pBP1/2p2pP1/3pr1p1/QP2pb2/1n4Nb/1B6 w - - bm #11; 00:00 @ C2/R1/K2/P13/X32;
RN6/8/8/1k6/4R3/K7/3P4/1q4B1 w - - bm #11; 00:00 @ C2/R0/K2/P1/X1;
1n3r2/4b2n/b2pB3/1p6/2pNNp2/p7/1k1K4/5R2 w - - bm #11; 00:01 @ C0/R-2/K3/P9/X26;
1R4K1/8/8/8/p7/8/p7/k4B1N w - - bm #11; 00:01 @ C2/R0/K2/P2/X2;
2b5/n1Kp4/2pNp3/1p1kp3/4N3/p1P1P3/P3P3/8 w - - bm #11; 00:01 @ C2/R0/K2/P5/X7;
2N2K1k/3p2N1/1r2ppP1/B7/6b1/2p4p/p5n1/7n w - - bm #11; 00:01 @ C0/R-2/K3/P9/X30;
4k1rq/R5p1/3Bp3/5pp1/K1N2np1/8/8/8 w - - bm #11; 00:01 @ C0/R2/K3/P7/X21;
4k1rq/R5p1/3Bp3/6p1/K1N2np1/8/8/8 w - - bm #11; 00:01 @ C0/R2/K3/P7/X21;
5rr1/P1N5/P7/1Pp2np1/2k2p2/Kp4R1/1Bp1PNb1/5n1q w - - bm #11; 00:01 @ C2/R1/K3/P8/X47;
6n1/2KB1p2/kB1p4/N2p3b/pp4p1/8/4p3/8 w - - bm #11; 00:01 @ C0/R-2/K2/P0/X19;
8/1p1K3p/pPp4P/rbN2Rp1/p1k3P1/P7/3P1B2/8 w - - bm #11; 00:01 @ C2/R-5/K3/P2/X5;
8/1p6/1P2k3/2B1N1K1/2pP2p1/1PN1n3/3Pb1pp/8 w - - bm #11; 00:01 @ C2/R3/K3/P7/X21;
8/2p5/4R3/pp6/qp4r1/bp2R2p/1n2KBkr/7b w - - bm #11; 00:01 @ C2/R0/K1/P5/X23;
8/6p1/6p1/4p1p1/4PkB1/1Q2NPpK/3q3p/6br w - - bm #11; 00:01 @ C0/R0/K1/P3/X23;
8/bqn3pp/k1r2R2/ppp2QRn/P1B2r1P/KNN2pp1/8/8 w - - bm #11; 00:01 @ C1/R0/K6/P3/X5;
K7/8/4p3/3p4/8/5N1B/8/6Bk w - - bm #11; 00:01 @ C2/R0/K2/P1/X1;
kBQ5/1p5K/4p3/2p2p1p/8/3p4/b3p3/2rn1r2 w - - bm #11; 00:01 @ C2/R-2/K3/P0/X33;
n7/p3K3/rp1Np3/3kNP2/1P1B2pP/4Pp2/1P1pprBp/n2bb3 w - - bm #11; 00:01 @ C2/R2/K3/P11/X24;
NK6/1Np5/kpP2p2/1n3P2/2b5/3B3p/2P4P/8 w - - bm #11; 00:01 @ C2/R-6/K1/P2/X14;
r2b4/4p1KN/bpR4n/3p1pB1/3k2P1/pp1B1prq/n1P3p1/4RN2 w - - bm #11; 00:01 @ C2/R1/K2/P13/X37;
2b4b/r5rq/p3p1np/8/7B/2pN1p1p/k1B3pK/1R4n1 w - - bm #11; 00:02 @ C2/R2/K3/P11/X27;
2r5/n1N1p3/Nnr3b1/p3PpP1/2pB1k1P/q1p3pK/1pB1R1Pb/8 w - - bm #11; 00:02 @ C2/R1/K2/P10/X37;
7k/5prp/3p1N1R/K2p4/8/8/8/8 w - - bm #11; 00:02 @ C0/R0/K1/P4/X14;
8/1p6/1B2p3/1N1p2K1/6R1/1P2Ppp1/2Ppkrnb/3nrb1q w - - bm #11; 00:02 @ C0/R5/K2/P6/X11;
8/1p6/1p6/1P6/2Kp4/6B1/pp1P4/kb2R3 w - - bm #11; 00:02 @ C0/R0/K1/P2/X6;
8/8/p7/6N1/K5p1/4N1B1/8/7k w - - bm #11; 00:02 @ C2/R0/K2/P1/X1;
k7/2K2Rbn/BP3p1q/P5pp/5P2/2P3P1/pn2p1b1/rr6 w - - bm #11; 00:02 @ C0/R3/K2/P10/X33;
rb6/6R1/3p1B2/1p5k/r7/3B3p/p7/K7 w - - bm #11; 00:02 @ C2/R2/K3/P7/X29;
1rbn4/qnB4p/2p2K1R/2pp4/7p/p3Np1p/B1R5/6k1 w - - bm #11; 00:03 @ C2/R3/K2/P11/X23;
2Q5/4q1k1/3ppn2/RKp1N1B1/2R5/2P1r1rb/3nP1N1/2b2B2 w - - bm #11; 00:03 @ C0/R1/K4/P9/X37;
3b2N1/1p6/3p2N1/p1pP2k1/3pB1Pp/3P1PpP/1KP1P1n1/8 w - - bm #11; 00:03 @ C0/R4/K2/P7/X17;
5N2/4p3/8/4R3/6P1/2P1Rp1p/PKP1nppP/3k1bn1 w - - bm #11; 00:03 @ C2/R0/K3/P2/X2;
7B/7B/7K/1p6/1P6/1P2p3/pn2N3/k7 w - - bm #11; 00:03 @ C0/R0/K2/P2/X4;
8/6B1/8/8/1N6/1p6/pp1K4/1k6 w - - bm #11; 00:03 @ C0/R0/K2/P2/X5;
8/8/6pK/8/7k/6r1/2N2N1B/8 w - - bm #11; 00:03 @ C2/R0/K3/P2/X12;
8/k1B4K/3N4/pppppppp/8/8/1b6/5R2 w - - bm #11; 00:03 @ C2/R-3/K3/P0/X15;
b7/2P1np2/1P4p1/1p1pP1rp/3P4/1R4Pk/8/5KR1 w - - bm #11; 00:03 @ C0/R3/K3/P8/X16;
rnb2r1k/qp1nb1pB/4p2p/1P1p4/p7/P4N2/1BQN1PPP/4RRK1 w - - bm #11; 00:03 @ C0/R2/K5/P8/X32;
1b6/2pKBp2/1pP2P2/8/p2k1p1P/1RNp3P/PP1pp1N1/4rn2 w - - bm #11; 00:04 @ C2/R-2/K5/P7/X23;
1B6/8/1P6/1p6/bP1R2P1/rkP2R2/rp1P4/bK6 w - - bm #11; 00:04 @ C2/R0/K5/P1/X4;
1Br1q1b1/8/8/5N2/Np6/4p1R1/2B5/4K2k w - - bm #11; 00:04 @ C2/R-3/K2/P0/X35;
1k5r/1P1r3p/K6P/5p2/1BR5/5P2/B1p1P3/8 w - - bm #11; 00:04 @ C0/R6/K3/P5/X23;
2rr2k1/1b4p1/6B1/p3pPpN/1pp1P3/7Q/PPPq4/1KR5 b - - bm #11; 00:04 @ C0/R3/K6/P6/X25;
7K/7p/7P/8/6p1/1p4n1/pPp2ppp/R1N2bkr w - - bm #11; 00:04 @ C0/R-5/K1/P3/X14;
8/1Qp3p1/2B4p/8/8/6pb/5prr/5K1k w - - bm #11; 00:04 @ C0/R0/K1/P3/X8;
8/2p1N2P/p2pN3/3Bk1P1/K1p1pp2/7r/1PpPPP2/n4nb1 w - - bm #11; 00:04 @ C0/R2/K3/P11/X31;
8/3p4/8/3P4/7K/p3B3/pp6/kn1R4 w - - bm #11; 00:04 @ C0/R0/K1/P2/X6;
7k/p7/1R5K/6r1/6p1/6P1/8/8 w - - bm #11; 00:05 @ C0/R-6/K4/P3/X13;
1N1b4/p4p2/P2p1p2/1n6/1PkNR1K1/1pp3p1/2P3r1/5R1b w - - bm #11; 00:06 @ C0/R-4/K3/P5/X15;
5R2/1p2P3/1P2P3/1p6/1P4p1/4ppp1/3prqp1/B2Kbbkn w - - bm #11; 00:06 @ C2/R0/K2/P1/X2;
7R/3p2p1/1K1p1pP1/3P1P2/8/1pPB4/1prp3P/nknR4 w - - bm #11; Duals(9); 00:06 @ C0/R0/K2/P2/X6;
r4r2/1q2ppk1/b1np2p1/6P1/4P3/1BNnBP2/PP1K4/R2Q3R w - - bm #11; 00:06 @ C0/R-2/K3/P9/X49;
5b2/1p6/bp6/1p3K2/1p6/kP6/8/1Q6 w - - bm #11; 00:06+ @ C2/R0/K3/P3/X15;
3N1B1b/6rp/6bk/5Ppr/1p2p1Pp/pP1pPp1R/P2P1P2/7K w - - bm #11; Duals(2); 00:07 @ C2/R0/K1/P3/X8;
3Q4/5q1k/4ppp1/2Kp1N1B/RR6/3Prr2/4nP1b/3b2n1 w - - bm #11; 00:07 @ C0/R2/K3/P10/X34;
8/7p/3p3p/1N1Pp2p/1N2P2P/8/ppBk1PP1/rrb2K2 w - - bm #11; 00:07 @ C0/R0/K2/P3/X11;
R1n4k/n1p5/1b2pN1P/2p4p/2P4p/p1p1p3/P1P1P2P/7K w - - bm #11; 00:07 @ C2/R0/K1/P6/X19;
2r5/p3kpp1/4b1r1/1B2Q2p/1P6/q1N2P2/P5nP/3R1R1K w - - bm #11; 00:08 @ C2/R2/K3/P8/X45;
8/1n3n1b/1B4r1/b1B2R2/6p1/6R1/NPKPp1pq/4k3 w - - bm #11; 00:09 @ C0/R-2/K2/P8/X43;
8/5p2/6p1/4K3/6k1/1p3b2/8/4Q3 w - - bm #11; 00:09 @ C0/R-5/K4/P0/X17;
rnb5/3p4/q1p1P1K1/3N3B/2P1kpR1/1P3Nb1/2P1ppP1/1r6 w - - bm #11; 00:09 @ C0/R2/K2/P10/X43;
1b1r4/1PPPPbr1/pp5q/k1pN2BR/n1Q4P/8/K3p1p1/5n2 w - - bm #11; 00:10 @ C0/R3/K4/P10/X42;
4Q3/2p5/2p4K/1q6/6k1/8/7B/8 w - - bm #11; 00:10 @ C4/R6/K4/P3/X26;
8/8/5K2/8/4k3/3NN3/3PP3/8 w - - bm #11; Duals(2); 00:10 @ C0/R0/K3/P0/X2;
3K4/2P5/3p4/1p1kp3/1P1pp3/1P2Pp2/p3P2b/1N6 w - - bm #11; 00:11 @ C0/R-3/K5/P6/X21;
8/8/1p3p1N/1p1p1N2/pP1Pk3/Rp2p2p/1P2P2P/K7 w - - bm #11; 00:11 @ C2/R0/K4/P2/X4;
1n2K3/p1Bp4/4p3/8/1p4Qp/2p5/b7/r6k w - - bm #11; 00:12 @ C0/R2/K2/P0/X29;
3kB3/8/2R3B1/8/8/8/1p6/bK6 w - - bm #11; 00:12 @ C2/R0/K3/P1/X2;
8/8/8/4N3/2K4R/k5N1/p1p5/8 w - - bm #11; 00:12 @ C0/R-7/K4/P0/X10;
4N1b1/6K1/1B2p1n1/4ppk1/8/7P/5pP1/8 w - - bm #11; 00:13 @ C2/R0/K3/P6/X14;
8/5K2/4p2k/8/p1pp3p/p1b2P2/5PP1/1R6 w - - bm #11; 00:13 @ C2/R-5/K3/P0/X18;
6k1/3N4/6K1/7n/8/B7/8/8 w - - bm #11; 00:14 @ C4/R0/K3/P0/X9;
2b5/5p2/1pB5/Pp3P1K/2pP4/qp4B1/3pN1P1/nn4bk w - - bm #11; 00:15 @ C0/R3/K2/P11/X31;
8/3Qn1P1/8/8/3p4/q1PK1k2/3B3P/8 w - - bm #11; 00:15 @ C0/R-4/K6/P0/X23;
r4b2/3pp2K/r1pp2p1/B2k2NP/2nP2Q1/2P5/P1Pp4/3N3b w - - bm #11; 00:18 @ C0/R2/K3/P8/X29;
7n/K4p2/p4Pp1/p5P1/P2p4/PQpP4/B1P5/k3r3 w - - bm #11; 00:19+ @ C0/R0/K2/P3/X16;
8/1p4p1/1P1p2p1/B2p2P1/3k2N1/1K4N1/8/8 w - - bm #11; 00:20 @ C0/R0/K4/P2/X3;
8/4B3/2N5/3kNK1p/7P/8/8/8 w - - bm #11; 00:21 @ C2/R0/K3/P1/X2;
8/3R2p1/5qk1/1p3p2/4bQ1p/7P/2p4K/8 b - - bm #11; 00:22 @ C0/R-4/K4/P3/X31;
8/4p3/8/3np3/8/BK6/4N3/k7 w - - bm #11; 00:26 @ C0/R0/K3/P0/X10;
rq4r1/1b1n4/ppnkN3/2pp1BBQ/3P4/2P5/PP4PP/R4RK1 w - - bm #11; 00:28 @ C2/R-2/K5/P9/X29;
8/8/8/7p/5p1p/1p1B1P2/ppp5/qkbR3K w - - bm #11; 00:29 @ C0/R0/K2/P2/X9;
k4b2/Pnp1p1p1/pB2P1Pp/P2B4/1p6/1P5K/7p/8 w - - bm #11; Duals(2); 00:42 @ C0/R0/K1/P3/X9;
8/p1pPp1p1/P1P1P1P1/2p5/3P4/5P1P/K2p2pp/3R2nk w - - bm #11; 00:46 @ C0/R0/K1/P1/X8;
8/p5pp/Pb6/2pk3P/4pP2/4K3/8/8 b - - bm #11; 00:49 @ C2/R0/K7/P2/X6;
3N4/4p2p/8/3PK2k/1p6/pp4pP/3B2P1/8 w - - bm #11; 00:54+ @ C0/R-6/K5/P6/X22;
2nB1k2/2p3pp/3p2p1/n2K4/3Qp1N1/1Np4R/1b1p4/1Rq3r1 w - - bm #11; 01:02 @ C0/R3/K4/P13/X43;
1r5r/1bp1Rppp/p1kB4/1p1q4/1Q6/2P2N2/PP3PPP/RN4K1 w - - bm #11; 01:07 @ C2/R-3/K3/P9/X34;
r4rk1/1b1qnppp/p1p1p3/6B1/Pb1PN3/3B1Q2/1P3PPP/2RR2K1 w - - bm #11; 01:07 @ C0/R2/K4/P11/X42;
8/8/7p/8/4p2N/8/7p/1K3Rbk w - - bm #11; Duals(4); 01:09+ @ C0/R0/K2/P3/X14;
2nB1k2/2p3pp/3p2p1/n2K4/3Qp1N1/1Np4R/rb1p4/1Rq3r1 w - - bm #11; 01:11 @ C0/R3/K4/P14/X49;
1n6/2B5/2pP4/8/1p2N3/7p/3K2p1/6kr w - - bm #11; 01:12 @ C0/R0/K2/P0/X12;
2nB1k2/6pp/3p2p1/n2K4/3Qp1N1/1Np4R/rb1p4/1Rq3r1 w - - bm #11; 01:13 @ C0/R3/K4/P13/X49;
qrn5/bpP1p3/1p1kP3/1P4R1/2RP2B1/1P1p2K1/3P4/8 w - - bm #11; 01:20 @ C2/R0/K3/P2/X3;
Kb1nq1r1/BR4pb/2P4p/R5Pn/2PP1P2/8/P2pPQ2/1r5k w - - bm #11; 01:31 @ C0/R3/K3/P8/X42;
8/kPp3p1/B4p1p/1Pp2p1p/2P2P1P/PK4P1/8/8 w - - bm #11; 01:37 @ C0/R0/K7/P4/X8;
5b2/3p1p2/8/6pp/7P/N5R1/4KPPp/6kr w - - bm #11; 01:59 @ C0/R-7/K2/P4/X16;
I gave engines 30 second to find fastest mate. Participants Houdini 1.5, Critter 0.90, Spark 1, Rybka 4, Crafty 23.4 and Stockfish 2. Here's result table (later I found position 86 to be mate in 10):
Jouni
r3k3/p1pp2p1/K5p1/p5B1/2B5/4pR2/2P1p3/r1bb4 w q - bm #11; 00:00 @ C2/R1/K3/P9/X27;
r5k1/bp3pn1/b1p1p1n1/P2p2P1/B5N1/B5R1/K5N1/8 w - - bm #11; 00:00 @ C0/R1/K2/P7/X28;
r6q/8/b7/8/3N4/5N2/8/QK5k w - - bm #11; 00:00 @ C3/R0/K3/P2/X2;
R7/1Kpkr1q1/2p1pBP1/2p2pP1/3pr1p1/QP2pb2/1n4Nb/1B6 w - - bm #11; 00:00 @ C2/R1/K2/P13/X32;
RN6/8/8/1k6/4R3/K7/3P4/1q4B1 w - - bm #11; 00:00 @ C2/R0/K2/P1/X1;
1n3r2/4b2n/b2pB3/1p6/2pNNp2/p7/1k1K4/5R2 w - - bm #11; 00:01 @ C0/R-2/K3/P9/X26;
1R4K1/8/8/8/p7/8/p7/k4B1N w - - bm #11; 00:01 @ C2/R0/K2/P2/X2;
2b5/n1Kp4/2pNp3/1p1kp3/4N3/p1P1P3/P3P3/8 w - - bm #11; 00:01 @ C2/R0/K2/P5/X7;
2N2K1k/3p2N1/1r2ppP1/B7/6b1/2p4p/p5n1/7n w - - bm #11; 00:01 @ C0/R-2/K3/P9/X30;
4k1rq/R5p1/3Bp3/5pp1/K1N2np1/8/8/8 w - - bm #11; 00:01 @ C0/R2/K3/P7/X21;
4k1rq/R5p1/3Bp3/6p1/K1N2np1/8/8/8 w - - bm #11; 00:01 @ C0/R2/K3/P7/X21;
5rr1/P1N5/P7/1Pp2np1/2k2p2/Kp4R1/1Bp1PNb1/5n1q w - - bm #11; 00:01 @ C2/R1/K3/P8/X47;
6n1/2KB1p2/kB1p4/N2p3b/pp4p1/8/4p3/8 w - - bm #11; 00:01 @ C0/R-2/K2/P0/X19;
8/1p1K3p/pPp4P/rbN2Rp1/p1k3P1/P7/3P1B2/8 w - - bm #11; 00:01 @ C2/R-5/K3/P2/X5;
8/1p6/1P2k3/2B1N1K1/2pP2p1/1PN1n3/3Pb1pp/8 w - - bm #11; 00:01 @ C2/R3/K3/P7/X21;
8/2p5/4R3/pp6/qp4r1/bp2R2p/1n2KBkr/7b w - - bm #11; 00:01 @ C2/R0/K1/P5/X23;
8/6p1/6p1/4p1p1/4PkB1/1Q2NPpK/3q3p/6br w - - bm #11; 00:01 @ C0/R0/K1/P3/X23;
8/bqn3pp/k1r2R2/ppp2QRn/P1B2r1P/KNN2pp1/8/8 w - - bm #11; 00:01 @ C1/R0/K6/P3/X5;
K7/8/4p3/3p4/8/5N1B/8/6Bk w - - bm #11; 00:01 @ C2/R0/K2/P1/X1;
kBQ5/1p5K/4p3/2p2p1p/8/3p4/b3p3/2rn1r2 w - - bm #11; 00:01 @ C2/R-2/K3/P0/X33;
n7/p3K3/rp1Np3/3kNP2/1P1B2pP/4Pp2/1P1pprBp/n2bb3 w - - bm #11; 00:01 @ C2/R2/K3/P11/X24;
NK6/1Np5/kpP2p2/1n3P2/2b5/3B3p/2P4P/8 w - - bm #11; 00:01 @ C2/R-6/K1/P2/X14;
r2b4/4p1KN/bpR4n/3p1pB1/3k2P1/pp1B1prq/n1P3p1/4RN2 w - - bm #11; 00:01 @ C2/R1/K2/P13/X37;
2b4b/r5rq/p3p1np/8/7B/2pN1p1p/k1B3pK/1R4n1 w - - bm #11; 00:02 @ C2/R2/K3/P11/X27;
2r5/n1N1p3/Nnr3b1/p3PpP1/2pB1k1P/q1p3pK/1pB1R1Pb/8 w - - bm #11; 00:02 @ C2/R1/K2/P10/X37;
7k/5prp/3p1N1R/K2p4/8/8/8/8 w - - bm #11; 00:02 @ C0/R0/K1/P4/X14;
8/1p6/1B2p3/1N1p2K1/6R1/1P2Ppp1/2Ppkrnb/3nrb1q w - - bm #11; 00:02 @ C0/R5/K2/P6/X11;
8/1p6/1p6/1P6/2Kp4/6B1/pp1P4/kb2R3 w - - bm #11; 00:02 @ C0/R0/K1/P2/X6;
8/8/p7/6N1/K5p1/4N1B1/8/7k w - - bm #11; 00:02 @ C2/R0/K2/P1/X1;
k7/2K2Rbn/BP3p1q/P5pp/5P2/2P3P1/pn2p1b1/rr6 w - - bm #11; 00:02 @ C0/R3/K2/P10/X33;
rb6/6R1/3p1B2/1p5k/r7/3B3p/p7/K7 w - - bm #11; 00:02 @ C2/R2/K3/P7/X29;
1rbn4/qnB4p/2p2K1R/2pp4/7p/p3Np1p/B1R5/6k1 w - - bm #11; 00:03 @ C2/R3/K2/P11/X23;
2Q5/4q1k1/3ppn2/RKp1N1B1/2R5/2P1r1rb/3nP1N1/2b2B2 w - - bm #11; 00:03 @ C0/R1/K4/P9/X37;
3b2N1/1p6/3p2N1/p1pP2k1/3pB1Pp/3P1PpP/1KP1P1n1/8 w - - bm #11; 00:03 @ C0/R4/K2/P7/X17;
5N2/4p3/8/4R3/6P1/2P1Rp1p/PKP1nppP/3k1bn1 w - - bm #11; 00:03 @ C2/R0/K3/P2/X2;
7B/7B/7K/1p6/1P6/1P2p3/pn2N3/k7 w - - bm #11; 00:03 @ C0/R0/K2/P2/X4;
8/6B1/8/8/1N6/1p6/pp1K4/1k6 w - - bm #11; 00:03 @ C0/R0/K2/P2/X5;
8/8/6pK/8/7k/6r1/2N2N1B/8 w - - bm #11; 00:03 @ C2/R0/K3/P2/X12;
8/k1B4K/3N4/pppppppp/8/8/1b6/5R2 w - - bm #11; 00:03 @ C2/R-3/K3/P0/X15;
b7/2P1np2/1P4p1/1p1pP1rp/3P4/1R4Pk/8/5KR1 w - - bm #11; 00:03 @ C0/R3/K3/P8/X16;
rnb2r1k/qp1nb1pB/4p2p/1P1p4/p7/P4N2/1BQN1PPP/4RRK1 w - - bm #11; 00:03 @ C0/R2/K5/P8/X32;
1b6/2pKBp2/1pP2P2/8/p2k1p1P/1RNp3P/PP1pp1N1/4rn2 w - - bm #11; 00:04 @ C2/R-2/K5/P7/X23;
1B6/8/1P6/1p6/bP1R2P1/rkP2R2/rp1P4/bK6 w - - bm #11; 00:04 @ C2/R0/K5/P1/X4;
1Br1q1b1/8/8/5N2/Np6/4p1R1/2B5/4K2k w - - bm #11; 00:04 @ C2/R-3/K2/P0/X35;
1k5r/1P1r3p/K6P/5p2/1BR5/5P2/B1p1P3/8 w - - bm #11; 00:04 @ C0/R6/K3/P5/X23;
2rr2k1/1b4p1/6B1/p3pPpN/1pp1P3/7Q/PPPq4/1KR5 b - - bm #11; 00:04 @ C0/R3/K6/P6/X25;
7K/7p/7P/8/6p1/1p4n1/pPp2ppp/R1N2bkr w - - bm #11; 00:04 @ C0/R-5/K1/P3/X14;
8/1Qp3p1/2B4p/8/8/6pb/5prr/5K1k w - - bm #11; 00:04 @ C0/R0/K1/P3/X8;
8/2p1N2P/p2pN3/3Bk1P1/K1p1pp2/7r/1PpPPP2/n4nb1 w - - bm #11; 00:04 @ C0/R2/K3/P11/X31;
8/3p4/8/3P4/7K/p3B3/pp6/kn1R4 w - - bm #11; 00:04 @ C0/R0/K1/P2/X6;
7k/p7/1R5K/6r1/6p1/6P1/8/8 w - - bm #11; 00:05 @ C0/R-6/K4/P3/X13;
1N1b4/p4p2/P2p1p2/1n6/1PkNR1K1/1pp3p1/2P3r1/5R1b w - - bm #11; 00:06 @ C0/R-4/K3/P5/X15;
5R2/1p2P3/1P2P3/1p6/1P4p1/4ppp1/3prqp1/B2Kbbkn w - - bm #11; 00:06 @ C2/R0/K2/P1/X2;
7R/3p2p1/1K1p1pP1/3P1P2/8/1pPB4/1prp3P/nknR4 w - - bm #11; Duals(9); 00:06 @ C0/R0/K2/P2/X6;
r4r2/1q2ppk1/b1np2p1/6P1/4P3/1BNnBP2/PP1K4/R2Q3R w - - bm #11; 00:06 @ C0/R-2/K3/P9/X49;
5b2/1p6/bp6/1p3K2/1p6/kP6/8/1Q6 w - - bm #11; 00:06+ @ C2/R0/K3/P3/X15;
3N1B1b/6rp/6bk/5Ppr/1p2p1Pp/pP1pPp1R/P2P1P2/7K w - - bm #11; Duals(2); 00:07 @ C2/R0/K1/P3/X8;
3Q4/5q1k/4ppp1/2Kp1N1B/RR6/3Prr2/4nP1b/3b2n1 w - - bm #11; 00:07 @ C0/R2/K3/P10/X34;
8/7p/3p3p/1N1Pp2p/1N2P2P/8/ppBk1PP1/rrb2K2 w - - bm #11; 00:07 @ C0/R0/K2/P3/X11;
R1n4k/n1p5/1b2pN1P/2p4p/2P4p/p1p1p3/P1P1P2P/7K w - - bm #11; 00:07 @ C2/R0/K1/P6/X19;
2r5/p3kpp1/4b1r1/1B2Q2p/1P6/q1N2P2/P5nP/3R1R1K w - - bm #11; 00:08 @ C2/R2/K3/P8/X45;
8/1n3n1b/1B4r1/b1B2R2/6p1/6R1/NPKPp1pq/4k3 w - - bm #11; 00:09 @ C0/R-2/K2/P8/X43;
8/5p2/6p1/4K3/6k1/1p3b2/8/4Q3 w - - bm #11; 00:09 @ C0/R-5/K4/P0/X17;
rnb5/3p4/q1p1P1K1/3N3B/2P1kpR1/1P3Nb1/2P1ppP1/1r6 w - - bm #11; 00:09 @ C0/R2/K2/P10/X43;
1b1r4/1PPPPbr1/pp5q/k1pN2BR/n1Q4P/8/K3p1p1/5n2 w - - bm #11; 00:10 @ C0/R3/K4/P10/X42;
4Q3/2p5/2p4K/1q6/6k1/8/7B/8 w - - bm #11; 00:10 @ C4/R6/K4/P3/X26;
8/8/5K2/8/4k3/3NN3/3PP3/8 w - - bm #11; Duals(2); 00:10 @ C0/R0/K3/P0/X2;
3K4/2P5/3p4/1p1kp3/1P1pp3/1P2Pp2/p3P2b/1N6 w - - bm #11; 00:11 @ C0/R-3/K5/P6/X21;
8/8/1p3p1N/1p1p1N2/pP1Pk3/Rp2p2p/1P2P2P/K7 w - - bm #11; 00:11 @ C2/R0/K4/P2/X4;
1n2K3/p1Bp4/4p3/8/1p4Qp/2p5/b7/r6k w - - bm #11; 00:12 @ C0/R2/K2/P0/X29;
3kB3/8/2R3B1/8/8/8/1p6/bK6 w - - bm #11; 00:12 @ C2/R0/K3/P1/X2;
8/8/8/4N3/2K4R/k5N1/p1p5/8 w - - bm #11; 00:12 @ C0/R-7/K4/P0/X10;
4N1b1/6K1/1B2p1n1/4ppk1/8/7P/5pP1/8 w - - bm #11; 00:13 @ C2/R0/K3/P6/X14;
8/5K2/4p2k/8/p1pp3p/p1b2P2/5PP1/1R6 w - - bm #11; 00:13 @ C2/R-5/K3/P0/X18;
6k1/3N4/6K1/7n/8/B7/8/8 w - - bm #11; 00:14 @ C4/R0/K3/P0/X9;
2b5/5p2/1pB5/Pp3P1K/2pP4/qp4B1/3pN1P1/nn4bk w - - bm #11; 00:15 @ C0/R3/K2/P11/X31;
8/3Qn1P1/8/8/3p4/q1PK1k2/3B3P/8 w - - bm #11; 00:15 @ C0/R-4/K6/P0/X23;
r4b2/3pp2K/r1pp2p1/B2k2NP/2nP2Q1/2P5/P1Pp4/3N3b w - - bm #11; 00:18 @ C0/R2/K3/P8/X29;
7n/K4p2/p4Pp1/p5P1/P2p4/PQpP4/B1P5/k3r3 w - - bm #11; 00:19+ @ C0/R0/K2/P3/X16;
8/1p4p1/1P1p2p1/B2p2P1/3k2N1/1K4N1/8/8 w - - bm #11; 00:20 @ C0/R0/K4/P2/X3;
8/4B3/2N5/3kNK1p/7P/8/8/8 w - - bm #11; 00:21 @ C2/R0/K3/P1/X2;
8/3R2p1/5qk1/1p3p2/4bQ1p/7P/2p4K/8 b - - bm #11; 00:22 @ C0/R-4/K4/P3/X31;
8/4p3/8/3np3/8/BK6/4N3/k7 w - - bm #11; 00:26 @ C0/R0/K3/P0/X10;
rq4r1/1b1n4/ppnkN3/2pp1BBQ/3P4/2P5/PP4PP/R4RK1 w - - bm #11; 00:28 @ C2/R-2/K5/P9/X29;
8/8/8/7p/5p1p/1p1B1P2/ppp5/qkbR3K w - - bm #11; 00:29 @ C0/R0/K2/P2/X9;
k4b2/Pnp1p1p1/pB2P1Pp/P2B4/1p6/1P5K/7p/8 w - - bm #11; Duals(2); 00:42 @ C0/R0/K1/P3/X9;
8/p1pPp1p1/P1P1P1P1/2p5/3P4/5P1P/K2p2pp/3R2nk w - - bm #11; 00:46 @ C0/R0/K1/P1/X8;
8/p5pp/Pb6/2pk3P/4pP2/4K3/8/8 b - - bm #11; 00:49 @ C2/R0/K7/P2/X6;
3N4/4p2p/8/3PK2k/1p6/pp4pP/3B2P1/8 w - - bm #11; 00:54+ @ C0/R-6/K5/P6/X22;
2nB1k2/2p3pp/3p2p1/n2K4/3Qp1N1/1Np4R/1b1p4/1Rq3r1 w - - bm #11; 01:02 @ C0/R3/K4/P13/X43;
1r5r/1bp1Rppp/p1kB4/1p1q4/1Q6/2P2N2/PP3PPP/RN4K1 w - - bm #11; 01:07 @ C2/R-3/K3/P9/X34;
r4rk1/1b1qnppp/p1p1p3/6B1/Pb1PN3/3B1Q2/1P3PPP/2RR2K1 w - - bm #11; 01:07 @ C0/R2/K4/P11/X42;
8/8/7p/8/4p2N/8/7p/1K3Rbk w - - bm #11; Duals(4); 01:09+ @ C0/R0/K2/P3/X14;
2nB1k2/2p3pp/3p2p1/n2K4/3Qp1N1/1Np4R/rb1p4/1Rq3r1 w - - bm #11; 01:11 @ C0/R3/K4/P14/X49;
1n6/2B5/2pP4/8/1p2N3/7p/3K2p1/6kr w - - bm #11; 01:12 @ C0/R0/K2/P0/X12;
2nB1k2/6pp/3p2p1/n2K4/3Qp1N1/1Np4R/rb1p4/1Rq3r1 w - - bm #11; 01:13 @ C0/R3/K4/P13/X49;
qrn5/bpP1p3/1p1kP3/1P4R1/2RP2B1/1P1p2K1/3P4/8 w - - bm #11; 01:20 @ C2/R0/K3/P2/X3;
Kb1nq1r1/BR4pb/2P4p/R5Pn/2PP1P2/8/P2pPQ2/1r5k w - - bm #11; 01:31 @ C0/R3/K3/P8/X42;
8/kPp3p1/B4p1p/1Pp2p1p/2P2P1P/PK4P1/8/8 w - - bm #11; 01:37 @ C0/R0/K7/P4/X8;
5b2/3p1p2/8/6pp/7P/N5R1/4KPPp/6kr w - - bm #11; 01:59 @ C0/R-7/K2/P4/X16;
I gave engines 30 second to find fastest mate. Participants Houdini 1.5, Critter 0.90, Spark 1, Rybka 4, Crafty 23.4 and Stockfish 2. Here's result table (later I found position 86 to be mate in 10):
Code: Select all
HOUD CRIT SPAR RYBK CRAF STOC
+M11 +M11 +M11 +M11 +M11 +M11
+17. +M11 +M11 +M11 +M11 +18.
+M11 +M11 +M11 +M11 +M11 +M11
+5.2 +6.0 +6.8 +6.5 +4.2 +6.6
+M11 +M11 +M11 +M11 +19. +M11
+M11 +M11 +M15 +M11 +M11 +M11
+M23 +M20 +13. +M11 +13. +M19
+M11 +M11 +M11 +6.0 +M11 +16.
+14. +10. +M11 +M11 +12. +M11
+M11 +M11 +M11 +M11 +M11 +M11
+M11 +M11 +M11 +M11 +M11 +M11
+M11 +M11 +M12 +M11 +0.0 0.00
+M11 +M11 +M11 +M10 +M11 +M11
+31. +23. +47. +24. +M11 +M32
+M11 +M11 +M11 +M13 +M10 +M11
0.00 0.00 0.00 0.00 +0.0 0.00
+13. +7.4 +11. +9.1 +10. +15.
+M11 +M11 +M11 +M10 +M11 +M16
+M11 +M21 +M11 +M11 +12. +M11
+M11 +M11 +M11 +M11 +M11 +M11
+M11 +M11 +M11 +M11 +0.0 0.00
+M14 +M13 +M29 +M13 +M13 +M17
+M11 +5.8 +M11 +M11 +M12 0.00
+M11 +M11 +M11 +M11 +M11 +M12
+M11 +M11 +3.2 +M11 +M11 +M11
+M11 +M42 +0.2 +10. +2.4 +0.2
+M13 0.00 0.00 +M11 +0.0 +M12
+M11 +M11 +90. +55. +12. +M36
+M15 +M36 +M11 +M15 +12. +75.
+M11 +M11 +M15 +M11 +M11 +M11
+M11 +M11 +M12 +M13 +0.7 +M12
+M11 +M11 +M12 +M11 +M11 +4.1
+M11 +M11 +4.6 +M11 +5.8 +M20
+9.8 +11. +7.7 +M11 +8.3 +5.0
+M11 +M11 +M12 +5.3 +M10 +M11
+M11 +M11 +M11 +M11 +12. +M11
+M11 +M11 +M11 +M11 +M11 +M11
+M11 +M36 +9.3 +10. +8.3 +77.
+5.7 +7.7 +2.7 +6.2 +5.1 +9.8
+M11 +M11 +M11 +M11 +M11 +M11
+M11 +M11 +M11 +M11 +M11 +M14
+5.2 +M11 +M13 +M13 +M11 +M17
+M12 +M15 +25. +11. +32. +114
+M11 +M11 +M11 +M11 +M11 +M19
+M21 +M11 +17. +16. +19. +27.
+M11 +M11 +M11 +M11 -M11 +M11
-14. -13. +M11 -12. +0.0 -18.
+M11 +M11 0.00 0.00 +0.0 0.00
+1.1 +2.5 +14. +3.0 +0.0 0.00
+M11 +M11 0.00 0.00 +0.0 0.00
+M11 +M11 +M11 +M9 +M12 +M11
+M11 +M11 +20. +M11 +M11 +M11
+M11 +M11 0.00 0.00 +0.0 0.00
+M11 +M11 +M22 +12. +M16 +M11
+M11 +M11 +M11 +M11 +M11 +24.
+M11 +M12 +90. +M12 +M13 +M11
+6.2 +4.0 +5.5 +3.8 +9.0 +6.1
+M11 +M11 +M11 +M11 +M11 +M11
+M12 +M12 +M14 +3.0 +0.0 0.00
+0.1 0.00 +0.6 +0.4 -1.2 0.00
+M11 +M11 +M11 +M11 +M11 +M23
+M11 +M11 +M11 +M11 +M11 +M19
+M11 +M13 +M11 +M10 +M12 +M37
0.00 +2.5 +M11 +M11 +M11 0.00
+M11 +M11 +12. +9.4 +11. +M12
+M11 +M11 +90. +M13 +M11 +M18
+M12 +M12 +21. +M10 +M12 +M13
+M11 +M11 +M11 +M11 +M11 -5.1
+21. +29. +17. +17. +16. +36.
+11. +15. +90. +6.6 +6.5 +10.
+M17 +M16 +M28 +M20 +M15 +85.
+M11 +M11 +M11 +M11 +M11 +M11
+M11 +M11 +M11 +M9 +M11 +5.1
0.00 +3.8 +0.5 0.00 +3.4 0.00
+M11 +M25 +M30 +M11 +8.6 +77.
0.00 +M11 +M11 +M11 +0.0 0.00
+M11 +M11 +M11 +M12 +M11 +30.
+16. +M15 +44. +M15 +15. +12.
+M11 +26. +45. +M24 +29. +M12
+129 +M13 +M12 +M11 +14. +98.
+M12 +M21 +M12 +M11 +23. +M13
+M11 +M11 +M13 +M9 -M11 +M11
+M11 +M24 +M37 +M15 +8.1 +70.
+29. +23. +M11 +18. +M11 +31.
+M11 +M11 +M12 +51. +0.0 +M18
+M10 +15. +7.0 +17. +5.4 +2.0
+M11 +M20 +41. +21. +26. +14.
+M13 +M15 +M13 +M13 -23. +104
+M11 +M11 +M11 +M11 +M11 +M11
+4.1 +4.3 +2.7 +3.7 +4.1 +6.7
+M17 +M12 +M11 +18. +20. +M15
+34. +20. +M11 +M10 +M12 +M15
+M11 +M11 +90. +M11 +M16 +111
-7.1 -5.4 -5.5 -4.6 -5.2 -7.7
+1.1 0.00 0.00 0.00 +0.0 0.00
-0.7 -1.9 -2.4 -1.7 -3.2 -1.9
+M11 +15. +M11 +M19 +9.8 +74.
+M13 +29. +28. +M12 +M13 +M14
+M15 +M15 +M11 +M12 +M11 +M11
+M11 +M11 0.00 0.00 -1.1 0.00
60 52 42 41 36 27