Author: Slater Wold
Date: 16:31:12 08/31/01
Ok, here's my stab at Nolot with Deep Shredder on my 2x1.7Ghz. I gave it 85 minutes a move. Here are the results: ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm Nxh6; id "Position 1"; solution : Ng4xh6! 7.03 0:01 -2.16++ 1.Rf3 c3 2.Bc1 h5 3.Nh2 (430.034) 423.2 7.03 0:01 -1.81++ 1.Rf3 c3 2.Ba3 Rc8 3.Ne3 Ba8 4.Bxb4 Nxb4 (472.007) 419.5 7.03 0:01 -1.66 1.Rf3 c3 2.Ba3 Rc8 3.Ne3 Qd7 4.Nxd5 Nxd5 5.Rxc3 Nxc3 6.Nxc3 (556.339) 418.9 7.13 0:02 -1.65++ 1.Qd2 Qxa4 2.Nxh6 Qb5 3.Nf7+ Kg8 (837.289) 409.0 7.13 0:02 -1.65 1.Qd2 Nd3 2.Bxd3 cxd3 3.Nh2 Qxa4 4.Nxd6 Rxd6 5.Qxd3 (937.805) 413.8 7.40 0:02 -1.47++ 1.Qd4 Rc8 2.Ne3 Qxa4 3.Nf6 (1.049.036) 411.8 7.40 0:02 -1.47 1.Qd4 Rc8 2.Ne3 Qxa4 3.Nf6 (1.049.456) 412.0 8.01 0:02 -1.47 1.Qd4 Rc8 2.Ne3 Qxa4 3.Nf6 (1.055.950) 411.9 9.01 0:06 -1.22++ 1.Qd4 Rc8 2.Ne3 Nxe3 3.Rexe3 Qxa4 4.Ng5 d5 5.Rxe6 hxg5 6.Rxg5 (2.710.168) 419.9 9.01 0:07 -1.15 1.Qd4 Rc8 2.Ne3 Nxe3 3.Rexe3 Qd7 4.Nc3 Rxe3 5.Rxe3 d5 6.Be4 Bc5 (3.324.457) 422.1 10.01 0:13 -1.40-- 1.Qd4 c3 2.Bxc3 Nxc3 3.Rxc3 d5 4.Kh2 dxe4 5.Nf6 gxf6 6.Qd8 Qxd8 (5.994.582) 429.6 10.01 0:17 -1.90-- 1.Qd4 c3 2.Bxc3 Nxc3 3.Rxc3 d5 4.Kh2 dxe4 5.Nf6 gxf6 6.Qd8 Qxd8 (7.459.813) 433.6 10.01 0:22 -2.17 1.Qd4 c3 2.Bxc3 Nxc3 3.Qxb4 Nxe4 4.Qxb7 Rb8 5.Qxb8 Qxb8 6.Bxe4 Qb4 7.Rge3 Qxa4 (9.803.655) 439.9 10.07 0:36 -2.16++ 1.Nxh6 c3 2.Bxc3 Nxc3 3.Rxc3 a5 4.Qd4 Rxh6 5.Rcc1 (15.827.996) 437.2 10.07 0:38 -1.90 1.Nxh6 c3 2.Bxc3 Nxc3 3.Rxc3 Rxh6 4.Rc7 Qb8 5.Qc1 Nd5 6.Rd7 (16.718.439) 436.9 11.01 0:58 -1.75 1.Nxh6 c3 2.Bxc3 Nxc3 3.Rxc3 Rxh6 4.Ng5 Qd7 5.Qg4 Qxg4 6.Nf7+ Kg8 7.Nxh6+ gxh6 8.hxg4 (25.096.920) 432.3 12.01 1:47 -1.87 1.Nxh6 c3 2.Bxc3 Nxc3 3.Rxc3 Rxh6 4.Ng5 Qh5 5.Rc7 Qxg5 6.Rxb7 d5 7.Qb3 Qd2 (46.862.447) 434.0 13.01 7:09 -1.62++ 1.Nxh6 c3 2.Nf5 cxb2 3.Qg4 Qxa4 4.Nexd6 Rxe1+ 5.Kh2 Rxb1 6.Nf7+ Kh7 7.Qh4+ Kg8 8.N5h6+ Kh7 9.Ng5+ Kh8 10.Nhf7+ Kg8 (187.767.846) 437.0 13.01 8:29 -1.13 1.Nxh6 c3 2.Nf5 cxb2 3.Qg4 g6 4.Re2 Qd7 5.Nh4 Qc8 6.Nxg6+ Rxg6 7.Qxg6 Qc1+ 8.Kh2 Na2 9.Bxa2 (222.747.108) 437.3 14.01 21:19 -0.88++ 1.Nxh6 c3 2.Nf5 cxb2 3.Qg4 g6 4.Re2 Qd7 5.Nh4 Qc8 6.Nxg6+ Rxg6 7.Qxg6 Qc1+ 8.Kh2 Na2 9.Bxa2 (564.209.285) 441.0 14.01 30:17 -0.38++ 1.Nxh6 c3 2.Nf5 cxb2 3.Qg4 g6 4.Re2 Qd7 5.Nh4 Qc8 6.Nxg6+ Rxg6 7.Qxg6 Qc1+ 8.Kh2 Na2 9.Bxa2 (801.230.111) 440.8 14.01 41:52 -0.26 1.Nxh6 c3 2.Nf5 cxb2 3.Qg4 g6 4.Re2 Nf4 5.Qh4+ Kg8 6.Nf6+ Rxf6 7.Rxe8 Rxe8 8.Qxf6 Re1+ 9.Kh2 Rxb1 10.Ne7+ (1.100.746.936) 438.0 best move: Ng4xh6 time: 85:00.203 min n/s: 437.915 CPU 199.8% nodes: 2233.457.713 right solution! (0:36.203) 10 right until now: 1 of 1 ** Weird. It takes DT-2 at least 6 hours to find this, while Deep Shredder finds the _EXACT_ same varation in a little over 8 minutes. However, like Bruce says, there sure isn't a big score. Deep Shredder thinks it's the best move, but only based on it loses the least. While actually it's winning. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm Rxc5; id "Position 2"; solution : Rc1xc5! 7.01 0:00 -3.19 1.Bh6 Qb5+ 2.Kd1 Bb4 3.Bxf8 Rxf8 4.Rc7 Nxe5 5.Nf6+ Kh8 6.Rxb7 Bxd6 7.Rxa7 (387.822) 468.3 8.01 0:02 -2.94++ 1.Bh6 Qb5+ 2.Ke1 Bb4+ 3.Kf2 Nxe5 4.Qf6 Nd3+ 5.Kg1 Bc5+ 6.Nxc5 Qxc5+ 7.Rxc5 Nd7 8.Bxf7+ Rxf7 (1.331.180) 470.7 8.01 0:03 -2.94 1.Bh6 Qb5+ 2.Ke1 Rae8 3.Nxc5 Nxc5 4.Bxf8 Rxf8 5.Qd2 Nd3+ 6.Ke2 (1.551.523) 472.8 9.01 0:06 -2.69++ 1.Bh6 Qb5+ 2.Ke1 Rae8 3.Rxc5 Nxc5 4.Qf6 Nd3+ 5.Kd2 Qxe5 6.Kxd3 Nd7 7.Qxe5 Nxe5+ 8.Ke3 (3.224.691) 478.7 9.01 0:07 -2.69 1.Bh6 Qb5+ 2.Ke1 Rae8 3.Rxc5 Nxc5 4.Qf6 Nd3+ 5.Kd2 Qxe5 6.Kxd3 Nd7 7.Qxe5 Nxe5+ 8.Ke3 (3.595.562) 479.4 10.01 0:14 -2.94-- 1.Bh6 Qb5+ 2.Ke1 Bb4+ 3.Kf2 Qxe5 4.Qxe5 Nxe5 5.Nf6+ Kh8 6.Bxf8 Nd3+ 7.Ke3 Nxc1 (7.019.834) 476.9 10.01 0:17 -3.05 1.Bh6 Qb5+ 2.Ke1 Bb4+ 3.Kf2 Qxe5 4.Qxe5 Nxe5 5.Nf6+ Kh8 6.Bxf8 Nd3+ 7.Ke3 Nxc1 (8.488.400) 479.8 10.02 0:41 -3.04++ 1.Bf6 Qb5+ 2.Ke1 Nd5 3.Bxd5 Bb4+ 4.Kf2 Qxd5 5.Qh6 Bxd6 6.exd6 Qxd6 7.Nxd6 Nxf6 (19.234.768) 466.1 10.02 0:53 -2.69++ 1.Bf6 Qb5+ 2.Ke1 Nd5 3.Bxd5 Bb4+ 4.Kf2 Qxd5 5.Qh6 Bxd6 6.exd6 Rac8 7.Qg7+ (25.106.202) 466.8 10.02 2:48 0.00 1.Bf6 Qb5+ 2.Ke1 Qa5+ 3.Rc3 Nxf6 4.Nxf6+ Kg7 5.Nh5+ gxh5 6.Qf6+ Kg8 7.Qg5+ Kh8 8.a4 (77.957.450) 463.9 11.01 4:49 0.00 1.Bf6 Qb5+ 2.Ke1 Qa5+ 3.Rc3 Nxf6 4.Nxf6+ Kg7 5.Nh5+ gxh5 6.Qf6+ Kg8 7.Qg5+ Kh8 8.Qf6+ Kg8 9.Qg5+ (134.981.715) 465.9 12.01 13:34 0.00 1.Bf6 Qb5+ 2.Ke1 Qa5+ 3.Rc3 Nxf6 4.Nxf6+ Kg7 5.Nh5+ gxh5 6.Qf6+ Kg8 7.Qg5+ Kh8 8.Qf6+ Kg8 9.Qg5+ (378.512.225) 464.7 13.01 37:58 0.00 1.Bf6 Qb5+ 2.Ke1 Qa5+ 3.Rc3 Nxf6 4.Nxf6+ Kg7 5.Nh5+ gxh5 6.Qf6+ Kg8 7.Qg5+ Kh8 8.Qf6+ Kg8 9.Qg5+ (1.056.803.030) 463.9 13.02 81:26 +0.01++ 1.Rxc5 Nxc5 2.Nf6+ Kh8 3.Qh4 Qb5+ 4.Ke3 Qd3+ 5.Kf2 h5 6.Nxh5 Ne4+ 7.fxe4 Qd4+ 8.Kf1 Qd3+ 9.Ke1 Qb1+ 10.Bd1 Nd5 11.Nf6+ (2.265.994.522) 463.7 best move: Rc1xc5 time: 85:00.281 min n/s: 463.716 CPU 199.8% nodes: 2365.085.176 right solution! (81:26.375) 13 right until now: 2 of 2 ** Takes 81 minutes to find this! DT-2 takes 4.5 and has it +1.00! Ferret on a 2x1.2Ghz AMD takes 15 seconds to find this. Bruce believes it's a little luck, and a little sensitive to extensions. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm Nxg5; id "Position 3"; solution : Nf3xg5! 7.01 0:01 +0.16 1.Bxg5 Bxg5 2.Rf1 O-O 3.Qc2 h6 4.Bh7+ Kh8 5.Ne2 Be3 (574.862) 448.7 8.01 0:02 +0.41++ 1.Bxg5 Bxg5 2.O-O O-O 3.Qc2 Be3+ 4.Kh1 Bxf3 5.Bxh7+ Kh8 6.gxf3 (944.056) 454.3 8.01 0:02 +0.56 1.Bxg5 Bxg5 2.O-O Qe7 3.Qe1 O-O 4.Nxg5 Qxg5 5.Qc1 Rxf1+ 6.Nxf1 Qxc1 7.Rxc1 Rf8 (1.305.907) 456.7 9.01 0:04 +0.47 1.Bxg5 Bxg5 2.O-O Qe7 3.h3 Bxf3 4.Qxf3 O-O-O 5.Qg4 Be3+ 6.Kh2 a6 7.Rae1 (2.075.184) 467.5 10.01 0:09 +0.58 1.Bxg5 Bxg5 2.O-O Qd7 3.h3 Bxf3 4.Qxf3 O-O-O 5.Rf2 Ne7 6.Raf1 a6 7.Qg4 (4.284.405) 474.4 11.01 0:24 +0.63 1.Bxg5 Bxg5 2.O-O Qe7 3.Kh1 O-O-O 4.Qa4 Bxf3 5.Rxf3 Rdf8 6.Rxf8+ Rxf8 7.Bb5 Rf2 8.Rb1 Qd7 (11.428.473) 460.8 12.01 0:58 +0.63 1.Bxg5 Bxg5 2.O-O Qe7 3.Kh1 O-O-O 4.Qa4 Bxf3 5.Rxf3 Rdf8 6.Rxf8+ Rxf8 7.Bb5 Rf2 8.Rb1 Qd7 (26.401.394) 454.9 13.01 2:48 +0.64 1.Bxg5 Bxg5 2.O-O Qe7 3.Qa4 O-O 4.Nxg5 Qxg5 5.Qc2 Qh4 6.Rxf8+ Rxf8 7.Rf1 (74.514.737) 441.3 14.01 7:18 +0.66 1.Bxg5 Bxg5 2.O-O Qe7 3.Qa4 O-O 4.Nxg5 Qxg5 5.Kh1 Qd2 6.Qb5 Ne7 7.Rxf8+ Rxf8 8.Nf1 Qf2 9.Qxb7 (192.467.684) 438.9 15.01 19:30 +0.64 1.Bxg5 Bxg5 2.O-O Qe7 3.Qa4 O-O 4.Nxg5 Qxg5 5.Qc2 Qe3+ 6.Kh1 Qh6 7.h3 (510.646.377) 436.1 16.01 76:11 +0.60 1.Bxg5 Bxg5 2.O-O Qe7 3.Kh1 Bh6 4.h3 Bxf3 5.Qxf3 O-O-O 6.Qg4 Rdf8 7.Rxf8+ Rxf8 8.Bxh7 (1.984.974.880) 434.2 best move: Bc1xg5 time: 85:00.031 min n/s: 434.277 CPU 199.9% nodes: 2214.830.689 wrong solution! right until now: 2 of 3 ** It doesn't find this at all. HOWEVER, based on commentary by Hsu, Bxg5 might actually be better! It plays Bxg5 from the start, and have a pretty stable score for it. I believe DT-2 must have played Bxg5 also. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm Nxe6; id "Position 4"; solution : Nd4xe6! 9.01 0:02 +0.60 1.Be2 Qc7 2.f4 Be7 3.e5 dxe5 4.Bxf6 Bxf6 5.Nd5 (990.541) 443.3 10.01 0:05 +0.56 1.Be2 Qc7 2.Qd3 Be7 3.Qg3 Rb8 4.f3 Qb6 5.Be3 O-O (2.577.926) 441.1 11.01 0:13 +0.56 1.Be2 Qc7 2.Qd3 Be7 3.Qg3 Nc5 4.Be3 O-O 5.f3 Bd7 6.Bh6 (5.952.800) 439.9 12.01 0:32 +0.50 1.Be2 Qc7 2.Qd3 Be7 3.Qg3 O-O 4.Rfd1 Qb6 5.Bh6 Ne8 6.Nf3 (14.292.238) 439.7 13.01 1:39 +0.45 1.Be2 Qc7 2.Qd3 Nc5 3.Qe3 Be7 4.Nb3 Nxb3 5.axb3 O-O 6.f3 b6 (43.002.382) 431.3 14.01 4:04 +0.48 1.Be2 Qc7 2.Qd3 Be7 3.Qg3 b5 4.Rad1 Bb7 5.Bd2 g6 6.f3 Nh5 7.Qg4 (105.221.890) 430.6 14.08 6:35 +0.49++ 1.Nxe6 Qxe6 2.Nd5 Nxd5 3.exd5 Qf5 4.Qe1+ Ne5 5.f4 g6 6.fxe5 Qxg5 7.exd6+ Kd8 8.Qa5+ Ke8 9.Rae1+ Kd7 (173.059.038) 437.9 14.08 7:02 +0.84++ 1.Nxe6 Qxe6 2.Nd5 Nxd5 3.exd5 Qf5 4.Qe1+ Ne5 5.f4 g6 6.fxe5 Qxg5 7.exd6+ Kd8 8.Qa5+ Ke8 9.Rae1+ Kd7 (184.856.554) 438.0 14.08 9:17 +1.48 1.Nxe6 Qxe6 2.Nd5 Kd8 3.Bg4 Qe5 4.f4 Qxb2 5.Bxd7 Bxd7 6.Rb1 Qxa2 7.Nxf6 h6 8.Bh4 Rb8 9.Nxd7+ Kxd7 10.Qd3 (245.989.961) 441.1 15.01 13:27 +1.46 1.Nxe6 Qxe6 2.Nd5 Kd8 3.Bg4 Qe5 4.f4 Qxb2 5.Bxd7 Bxd7 6.Rb1 Qa3 7.Nxf6 Bb5 8.Nd5+ f6 9.Nxf6 Be7 (358.123.940) 443.6 16.01 31:47 +1.23 1.Nxe6 Qxe6 2.Nd5 Kd8 3.Bg4 Qe5 4.f4 Qxb2 5.Bxd7 Bxd7 6.Rb1 Qxa2 7.Bxf6+ gxf6 8.Qd4 Be7 9.Qb6+ Ke8 10.Nc7+ Kf8 11.Nxa8 Bc6 12.Qd4 (864.794.845) 453.3 17.01 81:46 +1.34 1.Nxe6 Qxe6 2.Nd5 Kd8 3.Bg4 Qe5 4.f4 Qxb2 5.Bxd7 Bxd7 6.Rb1 Qa3 7.Qd4 Qc5 8.Qxc5 dxc5 9.Nxf6 (2.228.876.834) 454.2 best move: Nd4xe6 time: 85:00.328 min n/s: 454.276 CPU 199.8% nodes: 2316.960.693 right solution! (6:35.172) 14 right until now: 3 of 4 ** Plays Nxe6 in in a little over 6 minutes. DT-2 takes 2.5 hours. Ferret takes 34 hours, and has the score +1.00. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm e5; id "Position 5"; solution : e4-e5! 8.01 0:00 +0.48 1.Nce2 e5 2.Nf5 Bxf5 3.Rxf5 Rc8 4.Rgf1 Qb6 5.Bf7 Red8 (404.384) 438.5 9.01 0:02 +0.73++ 1.Nce2 e5 2.Nf5 Bxf5 3.Rxf5 Rc8 4.Rgf1 Rxc2 5.Kxc2 (968.573) 439.6 9.01 0:02 +0.88 1.Nce2 g5 2.h4 g4 3.Nf4 e5 4.Ng6+ Kh7 5.Bf7 d5 6.Bxe8 Qxe8 (1.268.806) 446.1 10.01 0:05 +0.84 1.Nce2 g5 2.h4 g4 3.Nf4 e5 4.Ng6+ Kg7 5.Nxf8 exd4 6.Nxd7 Qxd7 7.Rf4 (2.432.142) 448.5 11.01 0:10 +0.69 1.Nce2 g5 2.h4 g4 3.Nf4 e5 4.Nde6 Bxe6 5.Nxe6 Qe7 6.Nc7 Qxc7 (4.733.664) 451.5 12.01 0:33 +0.94++ 1.Nce2 g5 2.Nf4 gxf4 3.Rxf4 d5 4.exd5 Rb8 5.dxe6 Bxe6 6.Bxe6 Qxd4 7.Rxd4 Rxe6 (15.109.257) 452.4 12.01 0:52 +1.29 1.Nce2 g5 2.Nf4 Qc8 3.Nfxe6 Bxe6 4.Rxf6 Bxb3 5.axb3 Qc5 6.Nf5 Qe5 (23.638.858) 449.0 13.01 2:29 +1.52 1.Nce2 e5 2.Nf5 Bxf5 3.Rxf5 Qe7 4.Rgf1 Nh7 5.Qg6 Ng5 6.Ng3 Rec8 7.h4 Nf7 8.Qxf7 (67.093.546) 448.6 14.01 5:38 +1.51 1.Nce2 g5 2.Nf4 Bg7 3.h4 g4 4.Ndxe6 Bxe6 5.Bxe6 Qb6 6.c3 Qe3 7.Bxg4 (152.472.651) 450.1 14.12 25:48 +1.52++ 1.Nf3 Rb8 2.e5 Nh7 3.Ne4 Bb5 4.Rf2 g5 5.exd6 Kg8 (670.238.452) 432.9 14.12 40:22 +1.57 1.Nf3 Ng8 2.Qg3 Qc7 3.Nh4 g5 4.Ng6+ Kg7 5.Qf3 Kh7 6.e5 Red8 7.Nxf8+ Rxf8 8.Qd3+ Kh8 9.exd6 (1.040.064.206) 429.2 15.01 65:41 +1.82++ 1.Nf3 Ng8 2.Qg3 Qc7 3.Nh4 g5 4.Ng6+ Kg7 5.Qf3 Kh7 6.Qh5 Bg7 7.Rxg5 (1.682.256.787) 426.8 15.01 82:15 +1.82 1.Nf3 Bc6 2.Nh4 g5 3.Ng6+ Kh7 4.Nxf8+ Rxf8 5.Bxe6 Qe7 6.Bf5+ Kh8 7.Qh3 Qg7 8.Qd3 Rad8 9.h4 g4 10.Nd5 (2.105.094.905) 426.5 best move: Nd4-f3 time: 85:00.172 min n/s: 427.038 CPU 199.9% nodes: 2177.970.560 wrong solution! right until now: 3 of 5 ** Takes DT-2 4 hours to find, and Bruce 93 to play it and stick with it. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm axb5; id "Position 6"; solution : a6xb5! 8.01 0:01 -0.70 1...Nd7 2.Nd6+ Kf8 3.Ng5 Nb6 4.Ndxf7 Qe7 5.Qb3 Rg8 6.Bb2 Be3 7.Nxe5 (749.333) 413.5 9.01 0:04 -0.85 1...Nd7 2.Nd6+ Kf8 3.Ng5 Nb6 4.Ndxf7 Qe7 5.Qb3 Rg8 6.Qf3 Ke8 7.h3 (1.716.414) 422.5 10.01 0:12 -0.99 1...Nd7 2.Nd6+ Kf8 3.Nxc8 Ndf6 4.Qc2 Nh5 5.Nxe5 Nxe5 6.Kxf2 Rxc8 (5.164.775) 426.5 11.01 0:22 -0.74++ 1...Nd7 2.Nd6+ Kf8 3.Nxc8 Ndf6 4.Qc2 Nh5 5.Nxe5 Bd4 6.Nxg4 Bxa1 7.Qa4 Qxc8 8.bxc5 (9.543.507) 428.0 11.01 0:29 -0.66 1...Nd7 2.Nd6+ Kf8 3.Ng5 Nb6 4.Ndxf7 Qe7 5.Qb3 Rg8 6.Qf3 Ke8 7.d6 (12.783.454) 432.4 12.01 1:17 -0.58 1...Nd7 2.Nd6+ Kf8 3.Ng5 Bd4 4.Ndxf7 Qf6 5.Nxh8 Qf2+ 6.Kd1 Bxa1 7.Be2 Nb6 8.Qb3 Kg8 9.bxc5 (33.271.732) 428.0 13.01 3:48 -0.33++ 1...Nd7 2.Nd6+ Kf8 3.Ng5 Bd4 4.Ndxf7 Qf6 5.Nxh8 Qf2+ 6.Kd1 Bxa1 7.Be2 Ndf6 8.bxc5 Qd4+ 9.Kc2 Kg8 (96.541.034) 422.2 13.01 4:16 -0.33 1...Nd7 2.Nd6+ Kf8 3.Nxc8 Ndf6 4.Qa5 Qxc8 5.h3 Bd4 6.Nxd4 cxd4 7.hxg4 Qxc4+ 8.Kf2 Nxe4+ 9.Kg1 Qxb4 10.Qxb4+ (108.928.588) 424.2 14.01 10:34 -0.34 1...Nd7 2.Nd6+ Kf8 3.Nxc8 Ndf6 4.Qc2 Bd4 5.Nxd4 exd4 6.Na7 Rxa7 7.bxc5 (270.493.474) 426.3 15.01 30:39 -0.21 1...Nd7 2.Nd6+ Kf8 3.h3 Nb6 4.Nxb7 Bxb7 5.Qb3 Bd4 6.Nxd4 cxd4 7.hxg4 Bc8 (784.843.010) 426.7 16.01 68:27 -0.46-- 1...Nd7 2.Nd6+ Kf8 3.h3 Nb6 4.Nxf7 Kxf7 5.Qb3 Bd4 6.Nxd4 cxd4 7.hxg4 Rf8 8.c5 Bxg4+ 9.Kd3 Nd7 (1.750.079.063) 426.0 best move: Nb8-d7 time: 85:00.203 min n/s: 425.329 CPU 199.9% nodes: 2169.268.106 wrong solution! right until now: 3 of 6 ** DT-1 and DT-2 has never solved this. Hsu estimated a few days. Bruce hasn't tried it much either. I believe this is one of those positions, that will take a long time for a computer to solve. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm Rxd8+; id "Position 7"; solution : Rd1xd8! 8.01 0:01 0.00 1.Rb7 Rxb7 2.Rxd8+ Kxd8 3.Qxb7 Qe2 4.Qb8+ Kd7 5.Qb7+ Kd8 6.Qb8+ (607.631) 518.4 9.01 0:01 0.00 1.Rb7 Rxb7 2.Rxd8+ Kxd8 3.Qxb7 Qe2 4.Qb8+ Kd7 5.Qb7+ Kd8 6.Qb8+ (957.302) 523.6 10.01 0:04 0.00 1.Rb7 Rxb7 2.Rxd8+ Kxd8 3.Qxb7 Qe2 4.Qb8+ Kd7 5.Qb7+ Kd8 6.Qb8+ (2.516.926) 547.8 11.01 0:13 0.00 1.Rb7 Rxb7 2.Rxd8+ Kxd8 3.Qxb7 Qe2 4.Qb8+ Kd7 5.Qb7+ Kd8 6.Qb8+ (7.599.149) 545.2 12.01 0:44 0.00 1.Rb7 Rxb7 2.Rxd8+ Kxd8 3.Qxb7 Qe2 4.Qb8+ Kd7 5.Qb7+ Kd8 6.Qb8+ (23.952.518) 539.5 13.01 2:23 0.00 1.Rb7 Rxb7 2.Rxd8+ Kxd8 3.Qxb7 Qe2 4.Qb8+ Kd7 5.Qb7+ Kd8 6.Qb8+ (76.252.408) 532.5 14.01 8:08 0.00 1.Rb7 Rxb7 2.Rxd8+ Kxd8 3.Qxb7 Qe2 4.Qb8+ Kd7 5.Qb7+ Kd8 6.Qb8+ (252.618.579) 517.1 15.01 42:05 0.00 1.Rb7 Rxb7 2.Rxd8+ Kxd8 3.Qxb7 Qe2 4.Qb8+ Kd7 5.Qb7+ Kd8 6.Qb8+ (1.259.463.019) 498.7 best move: Rc7-b7 time: 85:00.328 min n/s: 494.057 CPU 199.9% nodes: 2519.857.497 wrong solution! right until now: 3 of 7 ** Took DT-2 6 hours to play, and Ferret 25 minutes. (However gets a +1.00 score in 24 hours, and a +2.30 score in 37 hours. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm Bxh7+; id "Position 8"; solution : Bd3xh7! 8.01 0:00 +0.64 1.c4 h6 2.a3 b6 3.Bb2 Bd5 4.Bxg7 Bxg7 5.cxd5 exd5 (450.485) 497.2 9.01 0:01 +0.62 1.c4 h6 2.a3 Rac8 3.Rac1 Qa5 4.Bb2 Qb6 5.Bc2 (885.721) 492.8 10.01 0:06 +0.65 1.c4 h6 2.Re1 Qa5 3.a3 Rac8 4.b4 Qa4 5.Qg3 Qb3 (3.351.178) 490.7 11.01 0:20 +0.61 1.c4 e5 2.Bf5 h6 3.Rd3 Qb6 4.Bh4 Qa5 5.a4 (9.862.543) 482.5 11.03 0:36 +0.62++ 1.Re1 Qa5 2.c4 Rac8 3.a3 h5 4.Qg3 Bxa3 5.Bxg7 (17.207.136) 474.0 11.03 0:44 +0.63 1.Re1 Qd6 2.Rad1 Qa3 3.Re2 h6 4.c4 Rac8 5.Be5 (20.828.784) 471.3 12.01 1:28 +0.67 1.Re1 Qd6 2.Rad1 Qa3 3.Re2 Rac8 4.c4 Qa5 5.Bb1 h5 6.Qg3 (40.702.538) 462.0 13.01 2:47 +0.70 1.Re1 Qd6 2.Rad1 Qa3 3.Re2 Rac8 4.c4 Qa5 5.Bb1 h6 6.Ree1 a6 7.Bb2 (77.391.495) 461.9 14.01 7:59 +0.71 1.Re1 Qd6 2.Rad1 Qa3 3.Re2 Rac8 4.c4 Qa5 5.Bc2 Qa3 6.Re3 (220.470.180) 459.4 15.01 22:40 +0.75 1.Re1 Qd6 2.Rad1 Qa3 3.Re5 g6 4.Re2 Be7 (621.681.655) 456.8 16.01 63:41 +0.67 1.Re1 g6 2.Be4 Be7 3.Be5 Qb6 4.Bxc6 Qxc6 5.c4 Rad8 (1.745.812.973) 456.8 best move: Rd1-e1 time: 85:00.516 min n/s: 453.818 CPU 199.9% nodes: 2314.709.737 wrong solution! right until now: 3 of 8 ** DT-2 preferred c4. Ferret solved it pretty quick. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm Ng5; id "Position 9"; solution : Nf3-g5! 8.02 0:01 -1.02++ 1.Nf6 gxf6 2.exf6 Bxd3 3.Rxd3 Kg8 4.fxe7 Rad8 5.exd8Q (533.581) 411.3 8.02 0:01 -0.84 1.Nf6 Bg6 2.Nd7 Nxd7 3.Rxc6 Bc5 4.Rc7 Qd5 (788.322) 413.6 8.06 0:02 -0.83++ 1.Rxc5 Bxc5 2.Rc1 Qd5 3.Ng5 Be4 4.Qxe4 Qxe4 5.Bxe4 hxg5 6.Bxc6 gxf4 7.Rxc5 fxg3 (946.106) 420.4 8.06 0:02 -0.48++ 1.Rxc5 Bxc5 2.Rc1 Qd5 3.Ng5 Nxe5 4.Qxe5 Qxe5 5.Bxe5 hxg5 6.Rxc5 Bxd3 (977.530) 422.8 8.06 0:02 +0.11 1.Rxc5 Bxc5 2.Rc1 Rac8 3.Rxc5 Qb1+ 4.Bf1 h5 5.Rc1 Qxd3 6.Qxd3 Bxd3 7.Bxd3 hxg4 (1.099.258) 429.0 9.01 0:03 +0.09 1.Rxc5 Bxc5 2.Rc1 h5 3.Ngh2 Bxd3 4.Qxd3 Qd5 5.Ng5 (1.307.902) 433.7 10.01 0:05 +0.33 1.Rxc5 Bxc5 2.Rc1 Ba7 3.Rxc6 Bf5 4.Ngh2 Qb1+ 5.Ne1 Qxd3 6.Nxd3 Bxd3 (2.470.050) 444.0 11.01 0:10 +0.38 1.Rxc5 Bxc5 2.Rc1 Ba7 3.Rxc6 Bf5 4.Ngh2 a4 5.Ne1 a3 6.Bc1 Kg8 7.Nhf3 axb2 8.Bxb2 (4.609.381) 455.2 12.01 0:23 +0.35 1.Rxc5 Bxc5 2.Rc1 Ba7 3.Rxc6 a4 4.Ne1 a3 5.Bc1 Bf5 6.Nh2 axb2 7.Bxb2 Kg8 (10.549.189) 452.8 13.01 0:52 +0.28 1.Rxc5 Bxc5 2.Rc1 Ba7 3.Rxc6 a4 4.Rc2 Rac8 5.Ne1 Qb1 6.Bc1 Rxc2 7.Nh2 Rxe2 (23.894.294) 451.0 14.01 2:27 +0.28 1.Rxc5 Bxc5 2.Rc1 Ba7 3.Rxc6 a4 4.Ne1 a3 5.Bc1 Bf5 6.Nh2 Rac8 7.g4 Qb1 8.gxf5 (65.828.599) 446.6 15.01 7:20 +0.03-- 1.Rxc5 Bxc5 2.Rc1 a4 3.Rxc5 a3 4.Bc1 Rac8 5.bxa3 Qxe2 6.Bf1 Bxd3 7.Nxd4 Qxg4 8.Rc4 (198.311.848) 450.2 15.01 9:02 -0.47-- 1.Rxc5 Bxc5 2.Rc1 a4 3.Rxc5 a3 4.Bc1 Rac8 5.bxa3 Qxe2 6.Bf1 Bxd3 7.Nxd4 Qxg4 8.Rc4 (244.900.906) 451.7 15.01 29:34 -1.42 1.Rxc5 Bxc5 2.Qc2 Ba7 3.Qxc6 Qxb2 4.Ne1 Bf5 5.Bf3 Rab8 6.Rc1 (800.703.371) 451.2 15.02 32:04 -1.41++ 1.Nf6 Rac8 2.Nxh7 Kxh7 3.Ng5+ hxg5 4.Bxg5 Kg8 5.Ra1 Qb3 6.Bxc6 Rxc6 7.Bxe7 (866.358.841) 450.2 15.02 34:03 -1.06++ 1.Nf6 Rac8 2.Nxh7 Kxh7 3.Ng5+ hxg5 4.Bxg5 Kg8 5.Ra1 Qb3 6.Bxc6 Rxc6 7.Bxe7 Na4 8.Bxf8 (917.136.554) 448.8 15.02 64:40 +0.01 1.Nf6 Rfc8 2.Nxh7 Kxh7 3.Rc4 Kg8 4.Rdc1 a4 5.Rxc5 Bxc5 6.Rxc5 a3 7.Bc1 Na5 8.Rxc8+ Rxc8 9.Nxd4 (1.712.553.048) 441.3 best move: Ng4-f6 time: 85:00.328 min n/s: 436.901 CPU 199.9% nodes: 2228.338.315 wrong solution! right until now: 3 of 9 ** No computer has solved this. Not even DT-2. Hsu has stated he doubts Ng5 as the correct move. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm Rxf7; id "Position 10"; solution : Rf1xf7! 8.02 0:01 -0.80 1.a5 Qxb2 2.Qd3 Bf6 3.Qxe3 Qb4 4.Nce2 Re8 5.c3 (471.057) 449.9 9.01 0:02 -0.87 1.a5 Qxb2 2.Qd3 Qb4 3.Qxe3 Bf6 4.Nce2 Qc5 5.c3 Re8 (1.057.419) 463.5 9.02 0:02 -0.86++ 1.Nf5 Bf6 2.Bb3 Bxc3 3.bxc3 Ne5 4.a5 Qc5 5.Qxd6 Qxd6 6.Nxd6 (1.147.387) 461.9 9.02 0:02 -0.86 1.Nf5 Bf6 2.Bb3 Bxc3 3.bxc3 Ne5 4.a5 Qc5 5.Qxd6 Qxd6 6.Nxd6 (1.276.025) 461.3 10.01 0:05 -0.61++ 1.Nf5 Bf6 2.Ra3 Ne5 3.Rb3 Qa7 4.Nxd6 Kh8 5.Bxb7 Qxb7 6.Nxb7 Bxb7 (2.610.067) 462.6 10.01 0:08 -0.51 1.Nf5 Bg5 2.Bb3 Nc5 3.Nd5 Qd8 4.Nfxe3 Nxe4 5.Qd4 Re8 (3.760.404) 460.1 11.01 0:15 -0.61 1.Nf5 Bg5 2.Bb3 Ne5 3.a5 Qd8 4.Nxd6 Be7 5.Nxc8 Rxc8 6.Qh5 (7.137.835) 464.7 11.06 0:28 -0.60++ 1.Bb3 Qc5 2.Nf5 Bf6 3.Nxd6 Bxc3 4.Rxf7 Kh8 5.Rxf8+ (13.344.104) 465.4 11.06 0:37 -0.35 1.Bb3 Nf6 2.Qd3 Qc5 3.Qxe3 Ng4 4.Qg1 Bf6 5.Rad1 Be5 (17.323.318) 463.3 12.01 0:58 -0.47 1.Bb3 Bg5 2.Nd5 Qd8 3.Nf5 Nc5 4.Nfxe3 Nxe4 5.Qd4 Nc5 6.Bc4 Bd7 (27.282.810) 466.5 13.01 1:55 -0.36 1.Bb3 Bg5 2.Nd5 Qd8 3.Nf5 Nc5 4.Nfxe3 Nxe4 5.Qd4 Nc5 6.Ba2 (53.572.911) 462.8 14.01 4:29 -0.42 1.Bb3 Bg5 2.Qh5 Bf6 3.Ne6 g6 4.Nxf8 gxh5 5.Nxd7 Bxd7 6.Nd5 Qc6 7.Nxf6+ Kh8 8.Rae1 (124.830.954) 462.7 15.01 15:32 -0.18 1.Bb3 Bf6 2.Nd5 Qd8 3.Nxe3 Nc5 (425.490.136) 456.4 15.02 20:25 -0.17++ 1.Rxf7 Rxf7 2.Bxf7+ Kxf7 3.Qh5+ Kg8 4.Qe8+ Bf8 5.Nd5 Qxb2 6.Ne7+ Kh8 7.Rf1 Qxd4 8.Rxf8+ Nxf8 9.Qxf8+ (573.609.041) 468.1 15.02 25:09 +0.18++ 1.Rxf7 Rxf7 2.Bxf7+ Kxf7 3.Qh5+ Kg8 4.Qe8+ Bf8 5.Nd5 Qxb2 6.Ne7+ Kh8 7.Rf1 Ne5 (714.240.338) 473.1 15.02 36:25 +1.68 1.Rxf7 Rxf7 2.Bxf7+ Kxf7 3.Qh5+ Kg8 4.Qe8+ Bf8 5.Nd5 Qxd4 6.Ne7+ Kh8 7.Rf1 Qf6 8.Rxf6 gxf6 9.Kg1 Kg7 10.Nf5+ Kg8 11.Nxd6 Kg7 12.Qf7+ (1.039.524.715) 475.6 16.01 63:12 +1.88 1.Rxf7 Rxf7 2.Bxf7+ Kxf7 3.Qh5+ Kg8 4.Qe8+ Bf8 5.Nd5 Qxd4 6.Ne7+ Kh8 7.Rf1 Qf6 8.Rxf6 gxf6 9.Kg1 Kg7 10.Nf5+ Kg8 11.Nxd6 Kg7 12.Qf7+ (1.805.782.996) 476.1 best move: Rf1xf7 time: 85:00.219 min n/s: 477.249 CPU 199.9% nodes: 2434.075.115 right solution! (20:25.297) 15 right until now: 4 of 10 ** Takes DS 20 minutes to find, DT-2 2 minutes to find. and Ferret 20 seconds! This seems to be one of the easier Nolot's. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ position: bm Rxh6; id "Position 11"; solution : Rg6xh6! 9.01 0:01 -3.90 1.Bxe6 dxe6 2.d3 Nxg6 3.Qxg6 Bb7 4.Rf1 Qd7 5.Qf6 Ng5 6.Qf8+ Kh7 (575.785) 478.6 10.01 0:04 -3.78 1.Bxe6 dxe6 2.Qh4 Bb7 3.Rf1 c5 4.d3 c4 5.Rg3 cxd3 6.cxd3 Nxd3 (1.973.876) 478.5 11.01 0:09 -3.53++ 1.Bxe6 dxe6 2.Rf6 Qe7 3.Qh4 Nxh5 4.Rxf7 Qxf7 5.Qd8+ Kh7 6.g8B+ Kh8 7.Bxf7+ Kh7 8.Bxh5 c5 (4.651.034) 482.4 11.01 0:11 -3.03++ 1.Bxe6 dxe6 2.Rf6 Qe7 3.Qh4 Nxh5 4.Rxf7 Qxf7 5.Qd8+ Kh7 6.g8B+ Qxg8 7.Rxg8 Nf4 (5.710.885) 484.7 11.01 0:19 -2.30 1.Bxe6 Nxe6 2.Rf6 Qe7 3.Qg6 Bb7 4.d3 Nf4 5.Qf5 Nxh5 (9.251.097) 485.6 12.01 0:30 -2.55-- 1.Bxe6 Nxe6 2.Rf6 Qe7 3.Qg6 Bb7 4.d3 Nf4 5.Rxf7 Qxf7 6.Qxh6 (14.479.897) 474.7 12.01 0:43 -2.91 1.Bxe6 Nxe6 2.Qh4 Qc5 3.Rf1 Nf4 4.d4 Qb4 5.Qf6 Bb7 6.Rgg1 Qxd4 (20.653.781) 472.0 13.01 1:01 -2.66++ 1.Bxe6 Nxe6 2.Qh4 Qc5 3.Rf1 Nf4 4.d4 Qb4 5.Qf6 Bb7 6.dxe5 Qxb3+ 7.cxb3 Nxh5 (28.889.300) 471.1 13.01 1:16 -2.55 1.Bxe6 Nxe6 2.Qh4 Qc5 3.Rf1 Nf4 4.d4 Qb6 5.Qf6 Qd8 6.Rxf4 exf4 7.Qxf4 (36.025.954) 473.4 14.01 1:51 -2.80-- 1.Bxe6 Nxe6 2.Qh4 Qc5 3.Rf1 Nf4 4.d4 Qb6 5.Qf6 Qd8 6.Qxd8+ Nxd8 7.dxe5 Nxg6 (52.982.752) 475.0 14.01 2:42 -2.88 1.Bxe6 Nxe6 2.Qh4 Qc5 3.Rf1 Nf4 4.d4 Qb6 5.Qf6 Qd8 6.Rxf4 exf4 7.Qxf4 d6 (76.803.543) 473.8 15.01 5:12 -2.63++ 1.Bxe6 Nxe6 2.Qh4 Qc5 3.Rf1 Nf4 4.d4 Qb6 5.Qf6 Qd8 6.dxe5 Ng5 7.Qxd8+ Kf7 (147.618.473) 472.9 15.01 6:43 -2.13++ 1.Bxe6 Nxe6 2.Qh4 Qc5 3.Rf1 Nf4 4.d4 Qb6 5.dxe5 Qe3 6.Rxf4 Bb7 7.Qf6 (189.477.225) 470.1 15.01 14:04 -1.91 1.Bxe6 dxe6 2.Rf6 Qe7 3.Qh4 Bd7 4.Rxf4 Qxh4 5.Rxh4 Ng5 6.Rhg4 Kxg7 7.d3 Be8 8.Rh1 b4 9.Kb2 Rd8 (401.469.787) 475.6 16.01 22:26 -2.08 1.Bxe6 dxe6 2.Rf6 Qe7 3.Qh4 Bd7 4.Rxf4 Qxh4 5.Rxh4 Ng5 6.Rf1 Kxg7 7.Rg4 Rg8 8.d3 Be8 9.Rh4 Rf8 (639.371.961) 474.7 17.01 59:39 -2.06 1.Bxe6 dxe6 2.Rf6 Qe7 3.Qh4 Bd7 4.Rxf4 Qxh4 5.Rxh4 Ng5 6.Rf1 Kxg7 7.Rg4 Rg8 8.d3 Be8 9.Rh4 Rf8 10.Rxf8 (1.676.208.464) 468.3 best move: Bc4xe6 time: 60:52.453 min n/s: 468.390 CPU 199.8% nodes: 1710.765.728 Wrong Solution! ** Key is Rxh6. DT-2 plays it in 5 minutes, and Ferret plays it in 10 seconds. ** ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ There it is. I didn't let #11 run as long. Sorry. But that is my result. THANKS! Slate PS _HUGE_ thanks to Bruce for his page, and the epd. Great commentary! Anyone who hasn't visited his site, it is packed full of useful knowledge! I highly recommend it! http://www.seanet.com/~brucemo/Nolot/nolot%2011.htm
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