Author: Kurt Utzinger
Date: 10:24:13 01/01/04
Go up one level in this thread
On January 01, 2004 at 11:17:32, Brian Katz wrote: >I have found that Fritz 8 (8.0.0.8 and 8.0.0.23)has trouble solving some >positions that other engines solve in a matter of seconds. Such is the case with >the recent position: > >[D]8/8/K6p/6p1/8/8/k5PP/8 w > >Of course Tablebases are needed to find the mate in 29, which is the case with >Ruffian, Yace and Crafty 19.06. Hiarcs finds it in 30. > >Fritz 8.0.0.8 did not find it at all as yet. Fritz 8.0.0.23 just found it as I >am sending this post after 00:08:26, but it shows mate in 31 instead. >Once Fritz 8 finds a mate, it seems to end it's search whereas, some other >engines continue to search and find quicker mates. > >Any and all opinions welcomed. >Brian New game 8/8/K6p/6p1/8/8/k5PP/8 w - - 0 1 Analysis by Fritz 80026: (P4 1.8/32 MB hash) 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 = (0.06) Depth: 7/9 00:00:00 2kN 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 = (0.00) Depth: 8/10 00:00:00 4kN 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 = (0.06) Depth: 9/10 00:00:00 7kN, tb=2 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf3 = (-0.16) Depth: 10/12 00:00:00 12kN, tb=5 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf3 6.Kf5 = (-0.07) Depth: 11/12 00:00:00 20kN, tb=18 1.Kb5! = (-0.03) Depth: 11/14 00:00:00 25kN, tb=18 1.Kb5! = (0.12) Depth: 11/14 00:00:00 29kN, tb=18 1.Kb5 Kb3 2.Kc5 Kc3 3.Kd5 Kd3 4.Ke5 Ke3 5.Kf5 Kf2 6.g4 Kf3 7.h3 = (0.03) Depth: 12/15 00:00:00 49kN, tb=53 1.Kb5 Kb3 2.Kc5 Kc3 3.Kd5 Kd3 4.Ke5 Ke3 5.Kf5 Kf2 6.g3 Kg2 7.h4 Kxg3 8.hxg5 = (0.00) Depth: 13/17 00:00:00 69kN, tb=103 1.Kb5 Kb3 2.Kc5 Kc3 3.Kd5 Kd3 4.Ke5 Ke2 5.Kf5 Kf1 6.g4 Kg2 7.Kg6 Kh3 = (-0.07) Depth: 14/18 00:00:00 101kN, tb=265 1.Kb5 Kb3 2.Kc5 Kc3 3.Kd5 Kd3 4.Ke5 Ke2 5.Kf5 Kf1 6.Kg4 Kxg2 7.h4 gxh4 8.Kxh4 Kg1 = (0.00) Depth: 15/19 00:00:00 145kN, tb=484 1.Kb5 Kb2 2.Kc5 Kc2 3.Kd5 Kd2 4.Ke5 Ke2 5.Kf6 g4 6.Kf5 h5 = (0.09) Depth: 16/27 00:00:01 306kN, tb=2159 1.g4! = (0.12) Depth: 16/27 00:00:01 337kN, tb=2736 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf2 6.Kf6 Kf3 7.Kf5 = (0.22) Depth: 16/27 00:00:01 340kN, tb=2805 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf2 6.Kf6 Kf3 7.Kf5 = (0.18) Depth: 17/25 00:00:01 390kN, tb=3344 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf2 6.Kf6 Kf3 7.Kf5 = (0.22) Depth: 18/30 00:00:02 527kN, tb=5715 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf2 6.Kf6 Ke3 7.Kg6 Kf4 8.Kh5 Kf3 9.h3 Kg3 10.Kxh6 Kh4 = (0.18) Depth: 19/32 00:00:02 731kN, tb=11769 1.g4! ² (0.47) Depth: 20/34 00:00:03 1213kN, tb=17325 1.g4! ± (0.75) Depth: 20/38 00:00:04 1724kN, tb=18454 1.g4! ± (1.31) Depth: 20/38 00:00:06 2586kN, tb=19455 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf2 6.Kf6 Ke3 7.Kg6 Kf4 8.h3 Ke5 9.Kxh6 Kf6 10.Kh5 Kf7 +- (4.78) Depth: 20/38 00:00:06 2813kN, tb=23170 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf2 6.Kf6 Ke3 7.Kg6 Kf4 8.h3 Ke5 9.Kxh6 Kf6 10.Kh5 Kf7 +- (4.78) Depth: 21/35 00:00:07 3100kN, tb=40177 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf2 6.Kf6 Ke3 7.Kg6 Kf4 8.h3 Ke5 9.Kxh6 Kf6 10.Kh5 Kf7 +- (4.78) Depth: 22/36 00:00:08 3589kN, tb=111378 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf2 6.Kf6 Ke3 7.Kg6 Kf4 8.h3 Ke5 9.Kxh6 Kf6 10.Kh5 Ke7 +- (4.78) Depth: 23/38 00:00:10 4492kN, tb=254011 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 Kf2 6.Kf6 Ke3 7.Kg6 Kf4 8.h3 Ke5 9.Kxh6 Kf6 10.Kh5 Ke7 +- (4.78) Depth: 24/40 00:00:14 5845kN, tb=403114 1.g4! +- (5.06) Depth: 25/39 00:00:18 7737kN, tb=542516 1.g4! +- (5.34) Depth: 25/39 00:00:19 8841kN, tb=578004 1.g4! +- (5.90) Depth: 25/41 00:00:26 12939kN, tb=611517 1.g4! +- (6.18) Depth: 26/41 00:00:37 19515kN, tb=844149 1.g4! +- (6.47) Depth: 26/41 00:00:42 22512kN, tb=886854 1.g4! +- (7.03) Depth: 26/45 00:00:46 24887kN, tb=935637 1.g4-- +- (6.75) Depth: 27/45 00:01:01 36651kN, tb=1231055 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke2 5.Ke6 Ke3 6.Ke5 +- (6.72) Depth: 27/47 00:01:38 70190kN, tb=1385092 1.g4! +- (7.00) Depth: 28/52 00:02:22 100056kN, tb=1642775 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke2 5.Ke6 Ke3 6.Ke5 +- (7.03) Depth: 28/52 00:02:37 109578kN, tb=1853829 1.g4! +- (7.31) Depth: 29/53 00:04:16 179429kN, tb=2246485 1.g4! +- (7.59) Depth: 29/54 00:04:49 201371kN, tb=2484474 1.g4! +- (8.15) Depth: 29/56 00:05:49 241615kN, tb=2720717 1.g4-- +- (7.87) Depth: 30/51 00:10:43 528813kN, tb=4439217 (Utzinger, MyTown 01.01.2004) New game 8/8/K6p/6p1/8/8/k5PP/8 w - - 0 1 Analysis by Fritz 6: 1.g4 = (0.09) Depth: 1/2 00:00:00 1.g4 Kb3 = (0.03) Depth: 2/3 00:00:00 1.g4 Kb3 2.Kb5 = (0.09) Depth: 3/4 00:00:00 1.g4 Kb3 2.Kb5 Kc3 = (0.09) Depth: 4/5 00:00:00 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 = (0.09) Depth: 5/6 00:00:00 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 = (0.09) Depth: 6/7 00:00:00 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 = (0.09) Depth: 7/8 00:00:00 1kN 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 = (0.16) Depth: 8/9 00:00:00 3kN 1.g4 Kb3 2.Kb5 Kc3 3.Kc5 Kd3 4.Kd5 Ke3 5.Ke5 = (0.09) Depth: 9/10 00:00:00 5kN, tb=2 1.g4 Kb2 2.Kb5 Kb3 3.Kc5 Kc3 4.Kd5 Kd3 5.Ke5 Ke3 = (0.16) Depth: 10/12 00:00:00 11kN, tb=6 1.Kb5! = (0.19) Depth: 10/13 00:00:00 20kN, tb=9 1.Kb5 Kb3 2.Kc5 Kc3 3.Kd5 Kd3 4.Ke5 Ke2 5.Kf5 Ke3 = (0.06) Depth: 11/14 00:00:00 56kN, tb=52 1.Kb5 g4 2.Kc4 h5 = (0.25) Depth: 12/15 00:00:00 115kN, tb=236 1.g4! ² (0.28) Depth: 12/15 00:00:00 115kN, tb=237 1.g4 Kb2 2.Kb5 Kc2 3.Kc4 Kd2 4.Kd4 Ke2 5.Ke4 Kf2 = (0.03) Depth: 13/16 00:00:00 134kN, tb=360 1.g4 Kb2 2.Kb5 Kc2 3.Kc4 Kd2 4.Kd4 Ke2 5.Ke4 Kf2 = (0.03) Depth: 14/19 00:00:00 199kN, tb=614 1.g4 Kb2 2.Kb6 Kc2 3.Kc6 = (-0.09) Depth: 15/19 00:00:00 290kN, tb=1219 1.g4 Kb2 2.Kb6 Kc2 3.Kc6 Kd2 4.Kd6 Ke2 5.Ke6 Ke3 = (-0.09) Depth: 16/21 00:00:00 387kN, tb=1856 1.Kb5! = (-0.06) Depth: 16/21 00:00:00 442kN, tb=2270 1.Kb5 Kb2 2.Kc5 Kc3 3.Kd5 Kd3 4.Ke5 Ke2 5.Kf6 Kf2 ² (0.28) Depth: 16/21 00:00:00 498kN, tb=2813 1.Kb5 Kb2 2.Kc5 Kc3 3.Kd5 Kd3 4.Ke5 Ke2 5.Kf6 Kf2 ² (0.28) Depth: 17/21 00:00:01 597kN, tb=4184 1.Kb5-- = (-0.03) Depth: 18/23 00:00:01 785kN, tb=6742 1.Kb5 Kb2 2.Kc5 Kc2 3.Kd4 Kd2 4.Ke5 Ke2 5.Kf6 g4 = (0.00) Depth: 18/23 00:00:01 885kN, tb=7109 1.g4! = (-0.12) Depth: 18/24 00:00:01 918kN, tb=7732 1.g4 Kb2 2.Kb6 Kc2 3.Kc6 Kd2 4.Kd6 Ke2 5.Ke6 Ke3 ² (0.69) Depth: 18/24 00:00:01 940kN, tb=7847 1.g4 Kb2 2.Kb6 Kc2 3.Kc6 Kd2 4.Kd6 Ke2 5.Ke6 Ke3 ² (0.69) Depth: 19/28 00:00:01 997kN, tb=8953 1.g4 Kb2 2.Kb6 Kc2 3.Kc6 Kd2 4.Kd6 Ke2 5.Ke6 Ke3 ± (0.84) Depth: 20/30 00:00:01 1172kN, tb=12385 1.g4 Kb2 2.Kb6 Kc2 3.Kc6 Kd2 4.Kd6 Ke2 5.Ke6 Ke3 ± (1.06) Depth: 21/33 00:00:02 1460kN, tb=17756 1.g4! ± (1.38) Depth: 22/33 00:00:02 1809kN, tb=22518 1.g4 Kb2 2.Kb6 Kc2 3.Kc6 Kd2 4.Kd6 Ke2 5.Ke6 Ke3 +- (4.72) Depth: 22/33 00:00:02 2019kN, tb=24588 1.g4 Kb2 2.Kb6 Kc2 3.Kc6 Kd2 4.Kd6 Ke2 5.Ke6 Ke3 +- (4.75) Depth: 23/33 00:00:03 2458kN, tb=32806 1.g4! +- (5.06) Depth: 24/32 00:00:03 2753kN, tb=40108 1.g4 Kb2 2.Kb6 Kc2 3.Kc6 Kd2 4.Kd6 Ke2 5.Ke6 Ke3 +- (5.44) Depth: 24/37 00:00:03 3218kN, tb=42953 1.g4! +- (5.75) Depth: 25/34 00:00:04 3746kN, tb=52745 1.g4 Ka3 2.Ka5 +- (#31) Depth: 25/38 00:00:07 6409kN, tb=64543 (Utzinger, MyTown 01.01.2004)
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