Author: Michel Langeveld
Date: 03:32:28 01/05/02
Go up one level in this thread
On January 04, 2002 at 12:10:04, James T. Walker wrote: >On January 04, 2002 at 11:02:30, Robert Basham wrote: > >>Greetings! >> >>Any of your fast new programs find Nxh7? >> >>My current programs seem to have trouble with this one. >> >>WK = g1 >>WQ = f2 >>WR = d1, f1 >>WN = e3, g5 >>WP = A2, B2, C2, F6, G2, H2 >> >>BK = g8 >>BQ = c7 >>BR = c8, e8 >>BB = d7, f8 >>BP = a7, b7, e5, e6, f7, g6, h7 >> > >[D]2r1rbk1/ppqb1p1p/4pPp1/4p1N1/8/4N3/PPP2QPP/3R1RK1 w KQkq - 0 1 > >Gambit Tiger 2.0 (Athlon 1.4G) >00:00:02.7 -0.68 9 910251 Nxh7 Bh6 Ng4 Bf4 Qh4 Qb6+ Kh1 Bc6 Rb1 Qd4 >00:00:05.0 -0.14 10 1972948 Nxh7 Bc5 Ng5 Bb5 Rfe1 Qb6 c3 Rcd8 Rxd8 >00:00:07.3 -0.18 11 2842307 Nxh7 Bc5 Ng5 Bb5 Rfe1 Qb6 c3 Red8 Rxd8+ Rxd8 b4 Bxe3 >Qxe3 Qxe3+ Rxe3 >00:00:27.2 0.18 12 10249161 Nxh7 Bc5 Ng5 Bb5 Rfe1 Qb6 c3 Red8 Rxd8+ Rxd8 Ne4 >Bxe3 Qxe3 Qxe3+ Rxe3 Rd1+ Kf2 >00:00:46.9 0.04 13 17491776 Nxh7 Bc5 Ng5 Bb5 Rfe1 Red8 Rxd8+ Qxd8 c3 Rc6 Ne4 Bb6 >a3 Qe8 b3 >00:02:24.8 0.66 14 56138833 Nxh7 Bc5 Ng5 Bb5 Rde1 Bxe3 Rxe3 Qc4 Rfe1 Qf4 c3 Red8 >Qxf4 exf4 Re5 Bd3 >00:05:00.2 0.58 15 119573588 Nxh7 Bc5 Ng5 Bb5 Rde1 Bxe3 Rxe3 Qc4 Rfe1 Qf4 Qxf4 >exf4 Re5 Bc6 c3 Bd5 Ne4 Bxa2 >00:06:30.5 0.58 15 161607985 Nxh7 Bc5 Ng5 Bb5 Rde1 Bxe3 Rxe3 Qc4 Rfe1 Qf4 Qxf4 >exf4 Re5 Bc6 c3 Bd5 Ne4 Bxa2 >>Thanks! >>Robert Cool Nullmover can find it also :-) It takes about 4.5 hours. search on ply: 1 alpha = -9999,beta = 9999 1 -332 0 10 Rxd7 1 -167 0 15 Nxh7 1 -132 0 20 Nxf7 1 -72 0 28 Rfe1 *1 -72 0 63 Rfe1 search on ply: 2 alpha = -92,beta = -52 2 -92 0 85 Rfe1 Rcd8 2 -54 0 953 Qh4 h6 *2 -54 0 1132 Qh4 h6 search on ply: 3 alpha = -74,beta = -34 3 -54 2 1867 Qh4 h6 Ne4 *3 -54 2 4458 Qh4 h6 Ne4 search on ply: 4 alpha = -74,beta = -34 4 -74 3 5708 Qh4 h6 *3 -- 67 118704 Qh4 h6 search on ply: 4 alpha = -9999,beta = 9999 4 -74 69 121732 Qh4 h6 Ne4 Rcd8 *4 -74 134 242333 Qh4 h6 Ne4 Rcd8 search on ply: 5 alpha = -94,beta = -54 5 -72 142 255328 Qh4 h6 Ne4 Bc6 Nc3 *5 -72 247 476815 Qh4 h6 Ne4 Bc6 Nc3 search on ply: 6 alpha = -92,beta = -52 6 -81 280 550452 Qh4 h6 Nf3 Bc6 c4 Rcd8 6 -80 369 738432 Rfe1 Bh6 Ne4 Bc6 Nd6 Bxe3 6 -58 570 1190093 Ng4 Bb5 Rfe1 Ba4 b3 Bc5 *6 -58 917 1874947 Ng4 Bb5 Rfe1 Ba4 b3 Bc5 search on ply: 7 alpha = -78,beta = -38 7 -78 1045 2232042 Ng4 Bb5 *6 -- 3033 7249020 Ng4 Bb5 search on ply: 7 alpha = -9999,beta = 9999 7 -80 3592 8472193 Ng4 Bb5 Rfe1 Qxc2 Rd2 Qc7 Nxe5 *7 -80 5767 13873856 Ng4 Bb5 Rfe1 Qxc2 Rd2 Qc7 Nxe5 search on ply: 8 alpha = -100,beta = -60 8 -85 7678 18612850 Ng4 Bb5 Rfe1 Qxc2 Rd2 Qc7 Nxe5 Bb4 8 -62 11108 26050680 Rfe1 Bb5 c4 Bxc4 Nxc4 Qxc4 Qxa7 Qc7 *8 -62 26238 61323807 Rfe1 Bb5 c4 Bxc4 Nxc4 Qxc4 Qxa7 Qc7 search on ply: 9 alpha = -82,beta = -42 9 -82 42667 99237086 Rfe1 Red8 9 -74 52808 124777649 Ng4 Bb5 Qh4 h5 Rf2 Qb6 a4 Rxc2 a5 *9 -74 130453 324308523 Ng4 Bb5 Qh4 h5 Rf2 Qb6 a4 Rxc2 a5 search on ply: 10 alpha = -94,beta = -54 10 -82 190491 473128816 Ng4 Bb5 Rfe1 Qxc2 Qh4 h6 Nxh6 Bxh6 Qxh6 Qxb2 10 -76 274072 661540297 Rfe1 Red8 c3 h6 Ne4 Bc6 Nd2 Bc5 Ndc4 Bxe3 *10 -76 911136 2252270764 Rfe1 Red8 c3 h6 Ne4 Bc6 Nd2 Bc5 Ndc4 Bxe3 search on ply: 11 alpha = -96,beta = -56 11 -79 1346330 3250969158 Rfe1 Red8 c3 h6 Nh3 a5 Qh4 Bc6 Nf2 a4 Nfg4 11 -56 1743150 4345568037 Nxh7 *10 ++ 1743150 4345568037 Nxh7 search on ply: 11 alpha = -9999,beta = 9999 11 -16 1968427 4902049420 Nxh7 Bh6 Ng4 Bf4 Qh4 Qb6 Kh1 Rxc2 Nxe5 Bxe5 Rxd7 *11 -16 4744380 12515273152 Nxh7 Bh6 Ng4 Bf4 Qh4 Qb6 Kh1 Rxc2 Nxe5 Bxe5 Rxd7
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