Author: m.d.hurd
Date: 16:37:11 01/23/05
Go up one level in this thread
On January 23, 2005 at 18:07:13, William Kerr wrote: >[D] Rr6/6k1/2PK1p2/6p1/4p3/4P3/4bP2/R7 w - - bm Rxb8;id Tough mate in 5; > >Some engines or most dedicated chess computers take awhile for this one. New game, Rr6/6k1/2PK1p2/6p1/4p3/4P3/4bP2/R7 w - - 0 1 Analysis by Shredder 8: 1.Rxb8 +- (7.73) Depth: 1/1 00:00:00 1.Rxb8 +- (12.07) Depth: 1/1 00:00:00 1.Rxb8 +- (12.07) Depth: 1/1 00:00:00 1.Rxb8 f5 +- (12.09) Depth: 2/2 00:00:00 1.Rxb8 f5 2.Raa8 +- (12.36) Depth: 3/4 00:00:00 1.Rxb8 Kg6 2.c7 Bg4 +- (12.74) Depth: 3/6 00:00:00 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 +- (13.09) Depth: 4/6 00:00:00 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 +- (13.09) Depth: 4/8 00:00:00 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 Kg6 +- (13.14) Depth: 5/10 00:00:00 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 Kf7 4.Rh8 +- (13.29) Depth: 6/12 00:00:00 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 Kg6 4.Rh8 Bg4 5.Rhg8+ Kh5 6.Rh8+ Kg6 7.Rhg8+ Kh5 8.Rh8+ Kg6 9.Rhg8+ +- (13.38) Depth: 7/12 00:00:00 9kN 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 Kh6 4.Rh8+ Bh7 +- (13.63) Depth: 8/14 00:00:00 17kN 1.Rxb8 Bg4 2.c7 Bf5 3.Rg8+ Kxg8 4.Ra8+ Kf7 5.Rf8+ Kxf8 6.c8Q+ Bxc8 +- (13.63) Depth: 8/14 00:00:00 21kN 1.Rxb8 Bg4 2.c7 Kg6 3.Rg8+ Kh5 4.Rh1+ Bh3 5.Rxh3+ Kg4 +- (13.88) Depth: 9/21 00:00:00 32kN 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 Kg6 4.Rg8+ Kh5 5.Ke7 Kg4 6.Kxf6 +- (14.07) Depth: 9/21 00:00:00 41kN 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 Kg6 4.Rg8+ Kh5 5.Ke7 Kg4 6.Kxf6 Bd7 +- (14.33) Depth: 10/15 00:00:00 52kN 1.Rxb8 Bg4 2.c7 Bf5 3.Ra5 Bg4 4.Raa8 Kg6 5.Rg8+ Kh6 6.Ke7 Kh7 7.Kxf6 Bc8 +- (14.43) Depth: 10/16 00:00:00 69kN 1.Rxb8 Bg4 2.c7 Bf5 3.Ra5 Bg4 4.Raa8 Kg6 5.Rg8+ Kh6 6.Ke7 Kh7 7.Kxf6 Bf5 8.Kxf5 +- (14.45) Depth: 11/24 00:00:00 116kN 1.Rxb8 Bg4 2.c7 Bf5 3.Ra5 Kg6 4.Rg8+ Kf7 5.Rxf5 Kxg8 6.c8Q+ Kg7 7.Qd8 Kh7 +- (14.70) Depth: 12/20 00:00:00 149kN 1.Rxb8 Bg4 2.c7 Bf5 3.Ra5 Bg4 4.Raa8 f5 5.c8Q Bf3 +- (14.74) Depth: 12/26 00:00:00 203kN 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 Kg6 4.Rg8+ Kh7 5.Ke7 Bg4 6.Kxf6 Kh6 +- (14.99) Depth: 13/22 00:00:01 445kN, tb=5 1.Rxb8 Bg4 2.c7 Bf5 3.Raa8 Kg6 4.Rg8+ Kh6 5.Ke7 Bg6 6.c8Q g4 +- (15.49) Depth: 13/27 00:00:01 469kN, tb=5 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Kg6 5.Ke7 Bc8 6.Rhxc8 f5 7.Rf8 g4 +- (19.77) Depth: 13/36 00:00:03 1516kN, tb=50 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Kg6 5.Ke7 Be6 6.Kxe6 f5 +- (20.02) Depth: 14/28 00:00:04 1712kN, tb=53 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Bh7 5.c7 Kh5 6.Rxh7+ Kg4 7.Rf8 Kf5 8.Ke7 Kg6 9.Rh3 +- (20.52) Depth: 14/30 00:00:04 1889kN, tb=53 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Kg6 5.c7 Bc8 6.Raxc8 Kf5 7.Rce8 Kg4 8.Rxe4+ Kf3 +- (21.11) Depth: 14/33 00:00:06 2367kN, tb=250 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Kg6 5.c7 Bc8 6.Rhxc8 Kh5 7.Rf8 Kg6 8.Ke7 g4 9.Rxf6+ Kg5 +- (21.32) Depth: 15/32 00:00:07 2895kN, tb=274 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Kg6 5.c7 Bg4 6.Ke7 Bd7 7.Kxd7 Kf5 8.Rhf8 Kg6 9.Ke6 Kh5 +- (21.56) Depth: 16/36 00:00:12 4405kN, tb=538 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Bh7 5.c7 f5 6.c8Q f4 +- (21.81) Depth: 17/34 00:00:17 6218kN, tb=809 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Kg6 5.c7 Bg4 6.Ke7 Bd7 7.Kxd7 Kf5 8.Rhf8 Kg6 9.Ke6 g4 10.Rxf6+ Kg7 +- (22.07) Depth: 17/36 00:00:19 6942kN, tb=980 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Kg6 5.c7 Bg4 6.Ke7 Kg7 7.Rhg8+ Kh7 8.Kxf6 Bh5 9.c8Q g4 +- (22.32) Depth: 18/36 00:00:22 8025kN, tb=1143 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Kg6 5.c7 Bg4 6.Ke7 Kg7 7.Rhg8+ Kh6 8.Kxf6 Bf3 9.c8Q Bg2 +- (22.82) Depth: 18/36 00:00:24 8409kN, tb=1345 1.Rxb8 Bg4 2.Raa8 Bf5 3.Rg8+ Kh6 4.Rh8+ Kg6 5.c7 Bg4 6.Ke7 Bd7 7.Kxd7 Kf5 8.c8Q Kg4 9.Qe8 Kf3 10.Qh5+ g4 11.Qf5+ Kg2 12.Qxe4+ Kg1 13.Rh1+ +- (#150) Depth: 18/38 00:00:35 11166kN, tb=4317 1.Rxb8 Bg4 2.Raa8 Kg6 3.Rg8+ Kh6 4.Rh8+ Kg7 5.c7 Bf5 6.Ke7 Bd7 7.Kxd7 Kf7 8.c8Q Kg6 9.Qg8+ Kf5 10.Qh7+ Ke5 11.Ra5# +- (#10) Depth: 19/45 00:08:56 300768kN, tb=124224 (Mike, n/a 23.01.2005) New game, 120'/40+60'/20+30' Rr6/6k1/2PK1p2/6p1/4p3/4P3/4bP2/R7 w - - 0 1 Analysis by Junior 9: 1.c7 Rb6+ 2.Ke7 Bg4 3.c8Q +- (6.12) Depth: 3 00:00:00 1.Rxb8 Bg4 2.c7 Kg6 3.c8Q +- (12.50) Depth: 3 00:00:00 1.Rxb8 Bg4 2.c7 Kg6 3.c8Q Bxc8 +- (12.50) Depth: 6 00:00:00 2kN 1.Rxb8 Bg4 2.c7 Kg6 3.c8R Bxc8 4.Rxc8 +- (12.52) Depth: 9 00:00:00 23kN 1.Rxb8! +- (12.82) Depth: 12 00:00:00 197kN 1.Rxb8 Kg6 2.Rg1 Ba6 3.Ra8 Bc8 4.Rxc8 Kf5 5.c7 g4 +- (15.07) Depth: 12 00:00:00 469kN 1.Rxb8! +- (15.37) Depth: 15 00:00:01 1135kN 1.Rxb8 Bg4 2.Rb7+ Kg6 3.Rd7 Kh5 4.Rh1+ Kg6 5.c7 Bxd7 6.Kxd7 g4 7.c8Q Kf5 +- (17.62) Depth: 15 00:00:01 2461kN 1.Rxb8! +- (17.92) Depth: 18 00:00:04 6114kN 1.Rxb8 Bg4 2.Ra7+ Kh6 3.Re7 Kg6 4.c7 Bf5 5.Rh8 g4 +- (17.93) Depth: 18 00:00:08 13607kN 1.Rxb8! +- (18.23) Depth: 20 00:00:16 28168kN, tb=76 1.Rxb8 Kg6 2.c7 Bg4 3.Rg8+ Kh7 4.Raa8 Kh6 5.Rh8+ Kg6 6.Ke7 Bd7 7.Kxd7 Kf5 8.Kd6 Kg6 9.Rag8+ Kf7 10.c8Q +- (25.20) Depth: 20 00:00:39 67987kN, tb=206 1.Rxb8 Kg6 2.c7 Bg4 3.Rg8+ +- (25.20) Depth: 21 00:01:08 119895kN, tb=445 1.Rxb8! +- (25.50) Depth: 22 00:01:47 188756kN, tb=784 1.Rxb8! +- (25.80) Depth: 23 00:04:00 432849kN, tb=2782 1.Rxb8 Bh5 2.c7 Bg4 3.Raa8 Kg6 4.Rg8+ Kh5 5.Rh8+ Kg6 6.Rag8+ +- (#10) Depth: 23 00:07:52 847797kN, tb=5446 1.Rxb8 Bh5 2.c7 Bg4 3.Raa8 Kg6 4.Rg8+ Kh5 5.Rh8+ Kg6 6.Rag8+ +- (#10) Depth: 23 00:09:30 1016303kN, tb=5868 (Mike, n/a 24.01.2005) New game, 120'/40+60'/20+30' Rr6/6k1/2PK1p2/6p1/4p3/4P3/4bP2/R7 w - - 0 1 Analysis by List 512: 1.Rxb8 Kg6 2.c7 Bg4 3.Rg8+ Kh7 4.c8Q +- (10.52) Depth: 5 00:00:00 1.Rxb8 Bg4 2.c7 Bh3 3.Rc1 Kg6 4.Rg8+ Kh5 +- (10.46) Depth: 6 00:00:01 7kN 1.Rxb8 Bg4 2.c7 Kg6 3.Rg8+ Kh7 4.Rg1 Bh3 5.c8Q +- (10.43) Depth: 7 00:00:01 15kN 1.Rxb8 Bg4 2.c7 Bf5 3.Rh1 g4 4.Rhh8 g3 5.Rbg8+ Kf7 6.Rxg3 +- (10.53) Depth: 8 00:00:02 34kN 1.Rxb8 Bg4 2.c7 Bf5 3.Rh1 Bg4 4.Rhh8 Kg6 5.Rbg8+ Kf7 6.Rf8+ Kg7 7.c8Q Bxc8 8.Rxc8 +- (10.62) Depth: 9 00:00:02 74kN 1.Rxb8 Bg4 2.Ra7+ Kg6 3.Rg8+ Kh6 4.Rf7 Bf5 5.Rxf6+ Kh5 6.Rxf5 Kg4 +- (11.02) Depth: 10 00:00:03 169kN 1.Rxb8 Bg4 2.Ra7+ Kg6 3.Rg8+ Kh6 4.Rf7 Be2 5.Rxf6+ Kh5 6.c7 Ba6 7.c8Q Bxc8 8.Rxc8 +- (11.48) Depth: 10 00:00:03 220kN 1.Rxb8 Bg4 2.c7 Kg6 3.Rg8+ Kh7 4.Rd8 Kg6 5.Rd7 Bh3 6.c8Q f5 +- (11.88) Depth: 11 00:00:04 407kN 1.Rxb8 Bg4 2.Rb7+ Kg6 3.Rd7 Kh5 4.c7 Bxd7 5.Kxd7 f5 6.c8Q Kg4 7.Ke6 +- (13.90) Depth: 11 00:00:04 719kN 1.Rxb8 Bg4 2.c7 Kg6 3.Ke7 Bf5 4.Rg8+ Kh7 5.Kxf6 Bg4 6.c8Q Bf3 +- (14.30) Depth: 12 00:00:05 1339kN 1.Rxb8 Bg4 2.c7 Bf5 3.Ke7 g4 4.Raa8 g3 5.Rg8+ Kh6 6.Rh8+ Bh7 7.c8Q f5 8.Qxf5 +- (16.69) Depth: 12 00:00:05 2707kN 1.Rxb8 Bg4 2.c7 Bf5 3.Ke7 g4 4.Raa8 g3 5.Rg8+ Kh6 6.Rh8+ Bh7 7.c8Q f5 8.Qxf5 +- (17.09) Depth: 13 00:00:17 3503kN 1.Rxb8 Bg4 2.c7 Kg6 3.Rh1 Bf5 4.Rg8+ Kf7 5.c8Q Bxc8 6.Rxc8 Kg7 7.Ke6 f5 8.Rhh8 +- (#9) Depth: 13 00:00:17 11144kN 1.Rxb8 Bg4 2.c7 Kg6 3.Rh1 Bf5 4.Rg8+ Kf7 5.c8Q Bxc8 6.Rxc8 Kg7 7.Ke6 f5 8.Rhh8 +- (#9) Depth: 14 00:00:28 21707kN 1.Rxb8 Bg4 2.c7 Kg6 3.Rh1 Bf5 4.Rg8+ Kf7 5.c8Q Bxc8 6.Rxc8 Kg7 7.Ke6 Kg6 8.Rg8# +- (#9) Depth: 15 00:00:49 55829kN 1.Rxb8 Bg4 2.c7 Kg6 3.Rh1 Bf5 4.Rg8+ Kf7 5.c8Q Bxc8 6.Rxc8 Kg7 7.Ke6 f5 8.Rhh8 +- (#9) Depth: 16 00:01:59 154809kN 1.Rxb8 Bg4 2.c7 Kg6 3.Rh1 Bf5 4.Rg8+ Kf7 5.c8Q Bxc8 6.Rxc8 Kg7 7.Ke6 f5 8.Rhh8 +- (#9) Depth: 17 00:04:39 401843kN 1.Rxb8 Bg4 2.c7 Kg6 3.Rh1 Bf5 4.Rg8+ Kf7 5.c8Q Bxc8 6.Rxc8 Kg7 7.Ke6 f5 8.Rhh8 +- (#9) Depth: 18 00:10:18 952117kN (Hurd, n/a 24.01.2005) New game, 120'/40+60'/20+30' Rr6/6k1/2PK1p2/6p1/4p3/4P3/4bP2/R7 w - - 0 1 Analysis by Fritz 5.32: 1.Rxb8! +- (7.72) Depth: 1/1 00:00:00 1.Rxb8 Kg6 +- (7.69) Depth: 2/4 00:00:00 1.Rxb8 Kf7 2.Ra7+ Kg6 +- (7.75) Depth: 3/6 00:00:00 1.Rxb8! +- (8.06) Depth: 4/10 00:00:00 2kN 1.Rxb8! +- (8.38) Depth: 5/10 00:00:00 3kN 1.Rxb8 Bf3 2.Ra7+ Kh6 3.c7 Bg4 4.c8Q Bxc8 5.Rxc8 +- (8.88) Depth: 5/13 00:00:00 6kN 1.Rxb8 Bf3 2.Ra7+ Kh6 3.c7 Bg4 4.Rh8+ Kg6 5.Rg8+ +- (8.94) Depth: 6/13 00:00:00 12kN 1.Rxb8 Bg4 2.Ra7+ Kh6 3.c7 Kg6 +- (8.94) Depth: 7/17 00:00:00 36kN 1.Rxb8 Bg4 2.Raa8 Bf5 3.c7 Bg4 4.Rg8+ Kh6 +- (9.03) Depth: 8/19 00:00:00 89kN 1.Rxb8 Bg4 2.Ra7+ Kh6 3.Ke7 Kg7 4.Raa8 Kg6 +- (9.25) Depth: 9/21 00:00:00 298kN 1.Rxb8! +- (9.56) Depth: 10/22 00:00:00 644kN 1.Rxb8 Bg4 2.Rd8 Kg6 3.c7 Kf7 4.Rd7+ Bxd7 5.Kxd7 f5 +- (12.66) Depth: 10/24 00:00:01 1391kN 1.Rxb8 Bg4 2.Ra7+ Kh6 3.Rd7 Bf5 4.c7 Bxd7 5.Kxd7 f5 +- (12.84) Depth: 11/25 00:00:01 2589kN 1.Rxb8! +- (13.16) Depth: 12/28 00:00:02 4250kN 1.Rxb8 Kf7 2.Raa8 Kg6 3.Rg8+ Kh5 4.c7 Bg4 5.Rh8+ Kg6 +- (#11) Depth: 12/32 00:00:54 116642kN (Hurd, n/a 24.01.2005)
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