Does anyone have a purely mechanical (computer generated) solution to this problem:
6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - -
Best move is listed as Qf5, so the key move involves coughing up your queen. Hence, null move will have to be turned way down if your engine allows it.
1rb2rk1/2q1ppbp/pn1p1np1/2pP4/4PB2/2N1N3/PP1QBPPP/R3K2R b KQ - bm Na4; id deep.01;
1rbq1rk1/1p2ppbn/p2p2p1/P1pP4/4P3/2PB1N2/2P3PP/R1B1QRK1 w - - bm e5; id deep.02;
2b3r1/8/1kp1p1P1/2b1P2B/1pprPP2/7p/1P5Q/2KN4 b - - bm Ba6; id deep.03;
2r1r1k1/1p4bp/p3p1p1/qnnpP3/2p2PQP/2P1B1P1/1PB2N2/3R1RK1 w - - bm Bxg6; id deep.04;
2r2rk1/2pR1p1b/1pq1pQp1/p3P2p/P1PR3P/1P3P2/6PK/8 w - - bm g4; id deep.05;
3r1rk1/1p1bbppp/pq1ppn2/n7/2PNP3/PPN3P1/1B1R1PBP/3Q1R1K w - - bm g4; id deep.06;
4r1k1/pp3p1p/3p2pb/5q2/2Pp2n1/PP1P1NPb/2Q1PPBP/3RR1K1 b - - bm Nxf2; id deep.07;
4rrk1/p1q1bpp1/b1n1p2p/1pppP1N1/n4B1P/3P2P1/PPP1QPBN/R3R1K1 w - - bm Qh5; id deep.08;
6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - bm Qf5; id deep.09;
6rk/2qr2p1/5pQn/p1pPpP2/PpP1B2P/1P6/K5R1/6R1 w - - bm Qxh6; id deep.10;
8/5k2/p3pp2/2P3p1/p2Pn3/3R4/K7/8 b - - bm Ke7; id deep.11;
8/8/4kpp1/3p1b2/p6P/2B5/6P1/6K1 b - - bm Bh3; id deep.12;
r1b2rk1/5ppp/pq1ppn2/1pb2P2/3NP2Q/2NBBP1P/PPP5/R6K w - - bm Rg1; id deep.13;
r1b2rk1/pp1pqp2/2n1p2p/6p1/2PNn3/R3P1B1/PP3PPP/3QKB1R w K - bm Bd3; id deep.14;
r1bq1rk1/pp2bppp/1n2p3/3pP3/8/2RBBN2/PP2QPPP/2R3K1 w - - bm Bxh7; id deep.15;
r1bq1rk1/ppp3b1/3p1nn1/P1PPp1Bp/1P2P3/1QNN1Pp1/4B1P1/R4RK1 b - - bm Bh6; id deep.16;
r1bqk2r/ppp2pp1/1bnp1n1p/8/P3P2B/1NN5/1PP2PPP/R2QKB1R b KQkq - bm Nxe4; id deep.17;
r1r3k1/1b1nbp1p/p3p1p1/q2pP3/Np3PP1/1P1BB2R/P1PQ3P/2KR4 w - - bm Bb6; id deep.18;
r2qrb1k/1p1b2p1/p2ppn1p/8/3NP3/1BN5/PPP3QP/1K3RR1 w - - bm e5; id deep.19;
r2qrb1k/1p1b2p1/p3p2p/4p2n/3NN3/1B6/PPP3QP/1K3RR1 w - - bm Qg6; id deep.20;
r3b1k1/1rq1bppp/2n1p3/ppPpP3/2pP1P2/P1P1BB2/3Q2PP/1R2NRK1 w - - bm f5; id deep.21;
r3qb1k/1b4p1/p2pr2N/3n4/Pn2N3/2p3RP/1B3PP1/1B1QR1K1 w - - bm Nf5; id deep.22;
r4rk1/1bq1bppp/ppn1p3/2n1P3/P2N1BQ1/2NB4/1PP3PP/R4R1K w - - bm Nd5; id deep.23;
r4rk1/1p1n1pp1/2p1pnp1/7P/p2P2P1/qBP2P2/P1PBQ3/1K1R3R w - - bm Bc4; id deep.24;
rnbqr1k1/ppp2ppp/3b4/3p4/3P2n1/P1NBP2P/1P2NPP1/R1BQ1RK1 b - - bm Nh2; id deep.25;
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
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Dann Corbit wrote:Does anyone have a purely mechanical (computer generated) solution to this problem:
6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - -
Best move is listed as Qf5, so the key move involves coughing up your queen. Hence, null move will have to be turned way down if your engine allows it.
Here's H4 with option FiftyMovesDistance set to 5 instead of 50:
I find it remarkable, that Houdini obviously treats this boundary more cleverly than I thought, because move-counting has to be reset by 2.Nxf5, yet it works
[D]6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - 0 1
Dann Corbit wrote:Does anyone have a purely mechanical (computer generated) solution to this problem:
6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - -
Best move is listed as Qf5, so the key move involves coughing up your queen. Hence, null move will have to be turned way down if your engine allows it.
Here's H4 with option FiftyMovesDistance set to 5 instead of 50:
I find it remarkable, that Houdini obviously treats this boundary more cleverly than I thought, because move-counting has to be reset by 2.Nxf5, yet it works
[D]6r1/6r1/2p1k1pp/p1pbP2q/Pp1p1PpP/1P1P2NR/1KPQ3R/8 b - - 0 1
Thanks for your assistance with this. It is very helpful.
Taking ideas is not a vice, it is a virtue. We have another word for this. It is called learning.
But sharing ideas is an even greater virtue. We have another word for this. It is called teaching.
jhellis3 wrote:Unless I am missing something this a draw by 50 move rule.... so I mean think about what you are asking....
Looking some more, it appears to me that white wins after Qf5.... not sure why it would be considered a best move for black?
I think White wins by moving a rook to c1 and then playing c2-c3 which opens the position for the queen. Therefore I agree that "best move Qf5" for black sounds a bit misleading since it seems to be based on the assumption of a forced draw.
