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Subject: Re: Need some Crafty analysis help with 32 epd positions

Author: Dann Corbit

Date: 00:33:02 12/03/02

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On December 02, 2002 at 16:03:58, Les Fernandez wrote:

>I am conducting an initial experiment which will involve running 32 EPD
>positions using the crafty engine.  I ran 1 position on a very slow machine
>(Pentium II 350 Mhz with only 4 piece EGTB) and it took 6 hours to find the
>mate.  With current hardware it should not take that long.  If someone, using
>fast hardware and crafty, can run the 32 positions all the same way and provide
>me with the epd output file I would be very thankful.  Afterwards I would be
>interested in running the exact same positions with another engine other then
>crafty perhaps CM, Ruffian or Chess Tiger.
>
>Following are the 32 epd positions:
>
>1k1r3r/2pq4/Q2pp1pp/3p4/R2bP3/8/PPPB2PP/2KR4 w - -
>1k1r3r/2pq4/Q2pp1pp/R2p4/3bP3/8/PPPB2PP/2KR4 w - -
>1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/2R5/PPPB2PP/2KR4 w - -
>1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/3R4/PPPB2PP/2KR4 w - -
>1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/4R3/PPPB2PP/2KR4 w - -
>1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/5R2/PPPB2PP/2KR4 w - -
>1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/6R1/PPPB2PP/2KR4 w - -
>1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/7R/PPPB2PP/2KR4 w - -
>r3r1k1/4qp2/pp1pp2Q/4p3/3Pb2R/8/PP2BPPP/4RK2 w - -
>r3r1k1/4qp2/pp1pp2Q/4p2R/3Pb3/8/PP2BPPP/4RK2 w - -
>r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/5R2/PP2BPPP/4RK2 w - -
>r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/4R3/PP2BPPP/4RK2 w - -
>r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/3R4/PP2BPPP/4RK2 w - -
>r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/2R5/PP2BPPP/4RK2 w - -
>r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/1R6/PP2BPPP/4RK2 w - -
>r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/R7/PP2BPPP/4RK2 w - -
>2kr4/pppb2pp/8/r2Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - -
>2kr4/pppb2pp/8/3Bp3/r2P4/q2PP1PP/2PQ4/1K1R3R b - -
>2kr4/pppb2pp/2r5/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - -
>2kr4/pppb2pp/3r4/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - -
>2kr4/pppb2pp/4r3/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - -
>2kr4/pppb2pp/5r2/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - -
>2kr4/pppb2pp/6r1/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - -
>2kr4/pppb2pp/7r/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - -
>4rk2/pp2bppp/8/3pB2r/4P3/PP1PP2q/4QP2/R3R1K1 b - -
>4rk2/pp2bppp/8/3pB3/4P2r/PP1PP2q/4QP2/R3R1K1 b - -
>4rk2/pp2bppp/5r2/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - -
>4rk2/pp2bppp/4r3/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - -
>4rk2/pp2bppp/3r4/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - -
>4rk2/pp2bppp/2r5/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - -
>4rk2/pp2bppp/1r6/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - -
>4rk2/pp2bppp/r7/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - -

24 of these positions will prove very difficult.  The other 8 are trivial mate
in 1 problems.  Unfortunately, the mate is not the rook move you were hoping
for.  But still, the rook move will still win.

[D]1k1r3r/2pq4/Q2pp1pp/3p4/R2bP3/8/PPPB2PP/2KR4 w - - acd 4; acn 3148; acs 2; ce
32766; pv Qa8#;
[D]1k1r3r/2pq4/Q2pp1pp/R2p4/3bP3/8/PPPB2PP/2KR4 w - - acd 4; acn 2646; acs 1; ce
32766; pv Qa8#;
1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/2R5/PPPB2PP/2KR4 w - - acd 13; acn 74374521; acs
120; ce 1774; pv Ra3 Qc6 Qxc6 Ba7 Rxa7 Kxa7 Qxc7+ Ka8 Be3 Rh7 Qxd8+ Kb7 Qxd6 d4
Bxd4 Rf7 Qb6+ Ka8 Qxe6;
1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/3R4/PPPB2PP/2KR4 w - - acd 11; acn 81290178; acs
120; ce 1570; pv Ra3 Qa4 Qxa4 Ba7 Qxa7+ Kc8 Ba5 Rh7 Qa6+ Kd7 Bxc7 Kxc7 Rc3+ Kd7
Qb7+ Ke8 Qxh7 dxe4 Qxg6+;
1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/4R3/PPPB2PP/2KR4 w - - acd 11; acn 75479757; acs
121; ce 1570; pv Ra3 Qa4 Qxa4 Ba7 Qxa7+ Kc8 Ba5 Rh7 Qa6+ Kd7 Bxc7 Kxc7 Rc3+ Kd7
Qb7+;
1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/5R2/PPPB2PP/2KR4 w - - acd 12; acn 73778642; acs
120; ce 2312; pv Ra3 Qc6 Qxc6 Ba7 Qb5+ Bb6 Qa6 Ba7 Qxa7+ Kc8 Ba5;
1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/6R1/PPPB2PP/2KR4 w - - acd 13; acn 79533595; acs
120; ce 2312; pv Ra3 Qc6 Qxc6 Ba7 Qb5+ Bb6 Qa6;
1k1r3r/2pq4/Q2pp1pp/3p4/3bP3/7R/PPPB2PP/2KR4 w - - acd 13; acn 80488289; acs
121; ce 2312; pv Ra3 Qc6 Qxc6;
[D]r3r1k1/4qp2/pp1pp2Q/4p3/3Pb2R/8/PP2BPPP/4RK2 w - - acd 4; acn 3187; acs 1; ce
32766; pv Qh8#;
[D]r3r1k1/4qp2/pp1pp2Q/4p2R/3Pb3/8/PP2BPPP/4RK2 w - - acd 4; acn 2646; acs 1; ce
32766; pv Qh8#;
r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/5R2/PP2BPPP/4RK2 w - - acd 13; acn 70630500; acs
120; ce 1775; pv Rh3 Qf6 Qxf6 Bh7 Qg5+ Bg6 Qh6 Bh7 Qxh7+ Kf8 Bh5 Ra7 Rg3 exd4
Rg8+ Ke7 Qxf7+ Kd8 Rxe8#;
r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/4R3/PP2BPPP/4RK2 w - - acd 11; acn 84852112; acs
120; ce 1774; pv Rh3 Qf6 Qxf6 Bh7 Rxh7 Kxh7 Qxf7+ Kh8;
r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/3R4/PP2BPPP/4RK2 w - - acd 12; acn 79077794; acs
121; ce 2312; pv Rh3 Qh4 Qxh4 Bh7 Qxh7+ Kf8 Bh5 Ra7 Rf3 f5 Qh8+ Ke7 Qxe8+ Kf6
Qg6+ Ke7 Qg7+ Kd8 Qxa7;
r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/2R5/PP2BPPP/4RK2 w - - acd 12; acn 80641665; acs
120; ce 2312; pv Rh3 Qh4 Qxh4;
r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/1R6/PP2BPPP/4RK2 w - - acd 12; acn 80494890; acs
121; ce 2312; pv Rh3 Qh4 Qxh4 Bh7 Qxh7+ Kf8 Bh5 Ra7 Rf3 f5 Qh8+ Ke7 Qxe8+ Kf6
Qg6+ Ke7 Qg7+ Kd8 Qxa7;
r3r1k1/4qp2/pp1pp2Q/4p3/3Pb3/R7/PP2BPPP/4RK2 w - - acd 12; acn 79722591; acs
120; ce 2478; pv Rh3 Qf6 Qxf6 Bh7 Qg5+ Bg6 Qh6 Bh7 Qxh7+ Kf8 Bh5 Ra7 Rf3 f5 Qh8+
Ke7 Qxe8+ Kf6 Qg6+ Ke7;
[D]2kr4/pppb2pp/8/r2Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - - acd 4; acn 3189; acs 1; ce
32766; pv Qa1#;
[D]2kr4/pppb2pp/8/3Bp3/r2P4/q2PP1PP/2PQ4/1K1R3R b - - acd 4; acn 2648; acs 1; ce
32766; pv Qa1#;
2kr4/pppb2pp/2r5/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - - acd 13; acn 70710899; acs
121; ce 1775; pv Ra6 Qc3 Qxc3 Ba2 Qb4+ Bb3 Qa3 Ba2 Qxa2+ Kc1 Ba4 Rh2 Rb6 dxe5
Rb1+ Kd2 Qxc2+ Ke1 Rxd1#;
2kr4/pppb2pp/3r4/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - - acd 11; acn 84654081; acs
120; ce 1774; pv Ra6 Qc3 Qxc3 Ba2 Rxa2 Kxa2 Qxc2+ Ka1 Be6 Rh2 Qxd1+ Kb2 Qxd3 d5
Bxd5 Rf2;
2kr4/pppb2pp/4r3/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - - acd 12; acn 74866855; acs
120; ce 1515; pv Ra6 Qc3 Qxc3 Ba2 Ba4 Rh2 Rb6+ Bb3 Rxb3+ cxb3;
2kr4/pppb2pp/5r2/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - - acd 11; acn 73751013; acs
120; ce 1570; pv Ra6 Qa5 Qxa5 Ba2 Qxa2+ Kc1 Ba4 Rh2 Qa3+ Kd2 Bxc2 Kxc2 Rc6+ Kd2
Qb2+ Ke1 Qxh2 dxe5 Qxg3+;
2kr4/pppb2pp/6r1/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - - acd 12; acn 79422486; acs
121; ce 2312; pv Ra6 Qc3 Qxc3 Ba2 Qb4+ Bb3 Qa3 Ba2 Qxa2+ Kc1 Ba4;
2kr4/pppb2pp/7r/3Bp3/3P4/q2PP1PP/2PQ4/1K1R3R b - - acd 12; acn 79096122; acs
120; ce 2312; pv Ra6 Qc3 Qxc3 Ba2 Qb4+ Bb3 Qa3 Ba2 Qxa2+;
[D]4rk2/pp2bppp/8/3pB2r/4P3/PP1PP2q/4QP2/R3R1K1 b - - acd 4; acn 3155; acs 1; ce
32766; pv Qh1#;
[D]4rk2/pp2bppp/8/3pB3/4P2r/PP1PP2q/4QP2/R3R1K1 b - - acd 4; acn 2646; acs 1; ce
32766; pv Qh1#;
4rk2/pp2bppp/5r2/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - - acd 13; acn 71722575; acs
120; ce 1774; pv Rh6 Qf3 Qxf3 Bh2 Rxh2 Kxh2 Qxf2+ Kh1 Bd6 Ra2 Qxe1+ Kg2 Qxe3 e5
Bxe5 Rc2 Qg3+ Kh1 Qxd3;
4rk2/pp2bppp/4r3/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - - acd 11; acn 81509213; acs
121; ce 1775; pv Rh6 Qh5 Qxh5 Bh2 Qxh2+ Kf1 Bh4 Ra2 Rg6 exd5 Rg1+ Ke2 Qxf2+ Kd1
Rxe1#;
4rk2/pp2bppp/3r4/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - - acd 12; acn 74441172; acs
120; ce 1666; pv Rh6 Qf3 Qxf3 Bh2 Bh4 Re2 Qxe2 Rf1 Qxd3 exd5 Rg6+ Bg3 Bxg3 fxg3
Rxe3;
4rk2/pp2bppp/2r5/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - - acd 12; acn 73589448; acs
120; ce 1497; pv Rh6 Qh5 Qxh5 f3 Qxe5 Kf2 Rh2+ Kg1 Qg3+ Kf1 Qxf3+;
4rk2/pp2bppp/1r6/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - - acd 12; acn 74209652; acs
121; ce 1399; pv Rh6 Qf3 Qxf3 Bh2 Qg4+ Bg3 Qh3 Bh2 Qxh2+ Kf1 dxe4 dxe4 Qh1+ Ke2
Qxe4;
4rk2/pp2bppp/r7/3pB3/4P3/PP1PP2q/4QP2/R3R1K1 b - - acd 12; acn 77325452; acs
120; ce 2312; pv Rh6 Qh5 Qxh5 Bh2 Qxh2+ Kf1 Bh4 Ra2 Rf6 f4 Qh1+ Ke2 Qxe1+ Kf3
Qg3+ Ke2 Qf2+ Kd1 Qxa2;



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