Author: John Merlino
Date: 18:59:41 01/04/02
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 Chessmaster 8000 finds Nxh7 in just over 30 seconds on my slow PIII-600, but it still doesn't think that it is winning after almost five minutes: Time Depth Score Positions Moves 0:00 1/3 -1.01 1436 1.Qh4 h5 2.Ne4 Bb5 0:00 1/3 -0.99 2157 1.Ne4 Ba4 2.b3 Bb5 0:00 1/4 -1.20 3580 1.Ne4 Bb5 2.c4 Bxc4 3.Nxc4 Qxc4 0:00 1/4 -1.03 4491 1.Qh4 h5 2.Ne4 Bb5 3.c4 Bxc4 4.Nxc4 Qxc4 0:00 1/4 -0.86 5738 1.c4 Bc5 2.Ne4 Bd4 3.Rfe1 0:00 1/4 -0.84 6996 1.Rfe1 Red8 2.Qh4 h5 3.Ne4 0:00 2/5 -1.10 16502 1.Rfe1 Bb5 2.Qh4 h6 3.Ne4 Red8 0:00 2/5 -1.02 31323 1.c4 Ba4 2.b3 Bc6 3.Qh4 h5 0:01 2/6 -0.97 58920 1.c4 Red8 2.Ne4 Bc6 3.Qh4 Bxe4 4.Qxe4 0:04 3/7 -1.37 227999 1.c4 Bc6 2.Qh4 h6 3.Nf3 Qb6 4.Qf2 Bc5 0:08 3/7 -1.22 445740 1.Qh4 h5 2.Ne4 Bb5 3.Rfe1 Red8 4.Rxd8 Rxd8 0:10 3/7 -1.19 497593 1.Rfe1 Red8 2.c3 Bb5 3.c4 Rxd1 4.Rxd1 0:21 3/8 -1.12 1068578 1.Rfe1 Red8 2.c3 Bb5 3.c4 Rxd1 4.Rxd1 Ba4 5.b3 0:32 3/8 -0.69 1780102 1.Nxh7 Bc5 2.Ng5 Qb6 3.Rfe1 Bc6 4.c3 Red8 0:39 4/9 -0.89 2238625 1.Nxh7 Bc5 2.Ng5 Qb6 3.Rfe1 Bc6 4.c3 Red8 5.Rxd8+ Rxd8 1:49 4/10 -0.36 6971093 1.Nxh7 Bc5 2.Ng5 Qb6 3.Rfe1 Bc6 4.Qg3 Red8 5.Rxd8+ Rxd8 6.Qxe5 Rd2 4:31 5/11 -0.28 19483882 1.Nxh7 Bc5 2.Ng5 Qb6 3.Qh4 Bxe3+ 4.Kh1 Bxg5 5.Qxg5 Qc5 6.Qh6 Qf8 7.Qxf8+ Rxf8 8.Rxd7 Rxc2 9.Rxb7 jm
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