Author: Bernhard Bauer
Date: 07:11:17 11/17/05
Go up one level in this thread
Hi Uri, Yace is well known for its endgame strenght. In this type of position Yace is simply good. Of course Yace uses EGTBs and bitmaps. Dieter has done a very good work! As Fruit2.2 doesn't find the solution, I do not expect Toga to find it. Anyway, its a simple position, won for white to move. Kind regards Bernhard On November 17, 2005 at 09:41:12, Uri Blass wrote: >On November 17, 2005 at 08:59:39, Bernhard Bauer wrote: > >>This pawn endgame has only 7 pieces. >>Yace shines bright in this type of position. >>Gambitfruit finds the right move early, but fails to give a high score. >>Running it for 15 min on a AMD XP 1800 MHz let it reach a depth of 31, >>but the score remains at 1.76. >>What's the reason? >>Kind regards >>Bernhard > >I do not know but I guess that some random move generator can get the correct >score even faster than yace if it is lucky > >Maybe yace is lucky >Note that even some plies after the root position after white lost a tempo >commercial Fruit does not see nothing at depth 36(white move by yace when black >moves by fruit) > >1.Ke4 Ke8 2.Ke3 Ke7 3.Kf3 Kd6 4.Ke4 Ke7 5.Ke5 > >New game, >[D]8/4k1p1/8/4KPp1/6P1/7P/8/8 b - - 0 1 > >Analysis by Fruit 2.2.1: > >5...Kd7 > +- (2.14) Depth: 1/1 00:00:00 >5...Kd7 6.Kd4 > +- (1.94) Depth: 2/3 00:00:00 >5...Kd7 6.Kd5 Ke7 > +- (2.14) Depth: 3/4 00:00:00 >5...Kd7 6.f6 Ke8 7.fxg7 Kf7 > +- (3.61) Depth: 4/6 00:00:00 >5...Kf7 6.Kd4 Ke7 7.Kd5 > +- (1.94) Depth: 4/7 00:00:00 >5...Kf7 6.Kd4 g6 7.Ke5 gxf5 8.gxf5 > +- (1.75) Depth: 5/7 00:00:00 >5...Kf7 6.Kd4 Kf6 7.Kd5 g6 8.fxg6 Kxg6 > +- (1.46) Depth: 6/8 00:00:00 1kN >5...Kf7 6.Kd4 Kf6 7.Kd5 Ke7 8.Kc5 Kf6 > +- (2.02) Depth: 7/9 00:00:00 2kN, tb=3 >5...Kf7 6.Kd6 Kf6 7.Kd5 g6 8.Ke4 Kf7 9.Ke5 gxf5 10.gxf5 > +- (1.75) Depth: 8/11 00:00:00 6kN, tb=5 >5...Kf7 6.Kd6 Kf6 7.Kd5 g6 8.Ke4 Kf7 9.Ke5 gxf5 10.gxf5 > +- (1.75) Depth: 9/11 00:00:00 8kN, tb=6 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kd4 Kd6 9.Kc4 Ke5 10.Kc5 > +- (1.58) Depth: 10/13 00:00:00 13kN, tb=6 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kd4 Kf7 9.Kc4 g6 10.Kd4 gxf5 11.gxf5 > +- (1.55) Depth: 11/15 00:00:00 21kN, tb=8 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc5 Ke8 9.Kd4 Kf7 10.Kc4 g6 11.Kd4 gxf5 12.gxf5 > +- (1.55) Depth: 12/15 00:00:00 31kN, tb=10 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc5 Ke8 9.Kd4 Kf7 10.Kc4 g6 11.Kd4 gxf5 12.gxf5 > +- (1.55) Depth: 13/17 00:00:01 48kN, tb=13 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kd4 Ke8 9.Kc5 Ke7 10.Kc4 Kf7 11.Kc3 g6 12.Kd4 gxf5 >13.gxf5 > +- (1.55) Depth: 14/19 00:00:01 73kN, tb=13 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kd4 Ke8 9.Kc5 Ke7 10.Kc4 Kf7 11.Kd3 g6 12.Kd4 gxf5 >13.gxf5 > +- (1.55) Depth: 15/19 00:00:01 96kN, tb=22 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kd4 Ke8 9.Kc5 Ke7 10.Kc4 Kf6 11.Kd3 Kf7 12.Kc3 g6 >13.Kd4 gxf5 14.gxf5 > +- (1.55) Depth: 16/22 00:00:01 129kN, tb=37 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kd3 g6 >13.Kd4 gxf5 14.gxf5 > +- (1.55) Depth: 17/26 00:00:01 207kN, tb=74 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Kf7 11.Kc6 Ke7 12.Kd5 Kf7 >13.Kc5 g6 14.Kd5 gxf5 15.gxf5 > +- (1.55) Depth: 18/28 00:00:01 317kN, tb=140 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Ke7 12.Kd3 Kf7 >13.Kc3 g6 14.Kd4 gxf5 15.gxf5 > +- (1.55) Depth: 19/32 00:00:01 415kN, tb=345 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kd3 Ke8 >13.Kc2 Kf7 14.Kc3 g6 15.Kd4 gxf5 16.gxf5 > +- (1.55) Depth: 20/33 00:00:01 499kN, tb=546 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kd3 Ke8 >13.Kc2 Kf7 14.Kc3 g6 15.Kd4 gxf5 16.gxf5 > +- (1.55) Depth: 21/35 00:00:01 611kN, tb=732 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Kf7 11.Kb6 Ke7 12.Ka5 Kf7 >13.Kb5 Ke8 14.Kc4 Kf7 15.Kc5 g6 16.Kd5 gxf5 17.gxf5 > +- (1.55) Depth: 22/39 00:00:01 911kN, tb=1080 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kb5 Ke8 >13.Kc5 Ke7 14.Kd5 Kf7 15.Kc6 g6 16.Kd5 gxf5 17.gxf5 > +- (1.55) Depth: 23/39 00:00:02 1089kN, tb=1911 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kd3 Ke8 >13.Ke2 Ke7 14.Kd2 Kf6 15.Kd3 Kf7 16.Kc3 g6 17.Kd4 gxf5 18.gxf5 > +- (1.55) Depth: 24/40 00:00:02 1402kN, tb=1957 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kd3 Ke8 >13.Kc3 Ke7 14.Kd4 Kf6 15.Kc5 Kf7 16.Kc6 g6 17.Kd5 gxf5 18.gxf5 > +- (1.55) Depth: 25/43 00:00:02 1935kN, tb=2443 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kb5 Ke8 >13.Kc6 Kf7 14.Kc7 Ke7 15.Kb6 Kf6 16.Kc5 Kf7 17.Kc6 g6 18.Kd5 gxf5 19.gxf5 > +- (1.55) Depth: 26/43 00:00:02 2708kN, tb=2971 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kb5 Ke8 >13.Kc6 Kf7 14.Kd7 Kf8 15.Ke6 Ke8 16.Kd6 Kf7 17.Kc6 g6 18.Kd5 gxf5 19.gxf5 > +- (1.55) Depth: 27/48 00:00:05 6894kN, tb=4130 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kb5 Ke8 >13.Kc5 Ke7 14.Kd4 Kf6 15.Kd3 Ke7 16.Ke2 Kf6 17.Kd2 Kf7 18.Kc3 g6 19.Kd4 gxf5 >20.gxf5 > +- (1.55) Depth: 28/48 00:00:07 9576kN, tb=4949 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kb5 Ke8 >13.Kc6 Kf7 14.Kd7 Kf8 15.Kc7 Kf7 16.Kb7 Ke7 17.Kb6 Kf7 18.Kc6 g6 19.Kd5 gxf5 >20.gxf5 > +- (1.55) Depth: 29/50 00:00:08 11757kN, tb=5637 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kb5 Ke8 >13.Kc6 Kf7 14.Kd7 Kf8 15.Kd6 Kf7 16.Kc7 Ke7 17.Kc8 Kf6 18.Kd7 Kf7 19.Kc6 g6 >20.Kd5 gxf5 21.gxf5 > +- (1.55) Depth: 30/53 00:00:10 14283kN, tb=6738 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kc3 Ke8 >13.Kc2 Kf7 14.Kd2 Ke7 15.Ke2 Kf6 16.Kd3 Ke7 17.Kd4 Kf6 18.Kc5 Kf7 19.Kc6 g6 >20.Kd5 gxf5 21.gxf5 > +- (1.55) Depth: 31/54 00:00:14 20337kN, tb=7717 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kc3 Ke8 >13.Kc2 Kf7 14.Kd3 Ke8 15.Ke2 Ke7 16.Kf1 Kf6 17.Kf2 Kf7 18.Kg3 g6 19.Kf3 Ke7 >20.Ke3 Kf7 21.Kd4 > +- (1.55) Depth: 32/55 00:00:21 29121kN, tb=10243 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kb5 Ke8 >13.Kc6 Kf7 14.Kd7 Kf8 15.Kd6 Kf7 16.Kc7 Ke7 17.Kb7 Kf6 18.Kc8 Ke7 19.Kc7 Kf7 >20.Kc6 g6 21.Kd5 > +- (1.55) Depth: 33/55 00:00:27 37834kN, tb=11880 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kb5 Ke8 >13.Kc6 Kf7 14.Kd7 Kf8 15.Kd6 Kf7 16.Kc6 Ke7 17.Kc7 Kf6 18.Kd7 Kf7 19.Kd8 Kf8 >20.Kc8 g6 21.Kc7 > +- (1.55) Depth: 34/57 00:00:37 52206kN, tb=13706 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kc3 Ke8 >13.Kc2 Kf7 14.Kd3 Ke8 15.Kd2 Ke7 16.Ke3 Kf6 17.Kd3 Ke7 18.Kd4 Kf6 19.Kc3 Ke7 >20.Kd2 g6 21.Kd3 > +- (1.55) Depth: 35/58 00:00:48 70993kN, tb=15780 >5...Kf7 6.Kd6 Kf6 7.Kd5 Ke7 8.Kc4 Kf6 9.Kd4 Ke7 10.Kc5 Ke8 11.Kc4 Kf7 12.Kc3 Ke8 >13.Kc2 Kf7 14.Kd3 Ke8 15.Kd2 Ke7 16.Ke1 Kf7 17.Ke2 Ke7 18.Kf1 Kf6 19.Kf2 Kf7 >20.Kg3 g6 21.Kf3 > +- (1.55) Depth: 36/67 00:01:13 109991kN, tb=20984 > >(, 17.11.2005) > >surprisingly if I let it to analyze positions after 5...Kf7 6.Kd5 it see mate >in 29 only at depth 28. > >New game, >[D]8/5kp1/8/3K1Pp1/6P1/7P/8/8 b - - 0 1 > >Analysis by Fruit 2.2.1: > >6...Kf6 > +- (2.14) Depth: 1/1 00:00:00 >6...Kf6 7.Kd4 > +- (1.94) Depth: 2/3 00:00:00 >6...Kf6 7.Kd4 Ke7 > +- (2.14) Depth: 3/5 00:00:00 >6...Ke7 7.Kd4 Kd6 > +- (2.02) Depth: 3/5 00:00:00 >6...g6 7.Ke5 gxf5 8.gxf5 > +- (1.75) Depth: 3/5 00:00:00 >6...g6 7.Ke5 Kg7 8.f6+ Kf7 > +- (2.72) Depth: 4/6 00:00:00 >6...Ke7 7.Kc5 Kf6 8.Kd4 > +- (1.94) Depth: 4/6 00:00:00 >6...Kf6 7.Kd4 g6 8.fxg6 Kxg6 > +- (1.46) Depth: 4/6 00:00:00 >6...Kf6 7.Kd4 Ke7 8.Kc5 Kf6 > +- (2.02) Depth: 5/6 00:00:00 >6...Kf6 7.Kd4 g6 8.Ke4 Kf7 9.Ke5 gxf5 10.gxf5 > +- (1.75) Depth: 6/9 00:00:00 2kN >6...Ke7 7.Kc5 g6 8.fxg6 Kf6 9.Kd4 Kxg6 > +- (1.46) Depth: 6/9 00:00:00 2kN >6...Ke7 7.Kc5 Kf7 8.Kd4 Kf6 9.Kd3 Ke5 > +- (1.78) Depth: 7/9 00:00:00 4kN, tb=6 >6...Kf6 7.Kd4 g6 8.Ke4 Kf7 9.Ke5 gxf5 10.gxf5 > +- (1.75) Depth: 7/9 00:00:00 4kN, tb=6 >6...Kf6 7.Kd4 g6 8.Ke4 Kf7 9.Ke5 Kg7 10.Ke6 gxf5 11.gxf5 > +- (1.75) Depth: 8/11 00:00:01 6kN, tb=7 >6...Ke7 7.Kc5 Kd7 8.Kc4 Kc6 9.Kd4 Kd6 10.Kd3 > +- (1.70) Depth: 8/11 00:00:01 8kN, tb=7 >6...Ke7 7.Kc5 Kf6 8.Kd4 g6 9.Ke4 Kf7 10.Ke5 gxf5 11.gxf5 > +- (1.75) Depth: 9/11 00:00:01 11kN, tb=9 >6...Ke7 7.Kc5 Kf6 8.Kd4 g6 9.Ke4 Kf7 10.Ke5 Kg7 11.Ke6 gxf5 12.gxf5 > +- (1.75) Depth: 10/12 00:00:01 16kN, tb=9 >6...Ke7 7.Kc5 Kf6 8.Kd4 Kf7 9.Kc4 g6 10.Kd4 Ke7 11.Ke5 gxf5 12.gxf5 > +- (1.63) Depth: 11/14 00:00:01 24kN, tb=9 >6...Ke7 7.Kc5 Kf6 8.Kd4 Ke7 9.Kc4 Kd6 10.Kd3 Ke5 11.Ke3 Kd5 12.Kd3 > +- (1.58) Depth: 12/16 00:00:01 37kN, tb=12 >6...Ke7 7.Kc5 Kf6 8.Kd4 Ke7 9.Kc4 Kf7 10.Kd3 Kf6 11.Kc3 Ke5 12.Kd2 Ke4 > +- (1.66) Depth: 13/17 00:00:01 68kN, tb=13 >6...Ke7 7.Kc5 Kf6 8.Kd4 Kf7 9.Kc4 Ke7 10.Kd3 Kf6 11.Kc3 Ke5 12.Kc4 Ke4 13.Kc5 > +- (1.58) Depth: 14/17 00:00:02 107kN, tb=28 >6...Ke7 7.Kc5 Kf6 8.Kd4 Ke7 9.Kc4 Kd6 10.Kd3 Ke5 11.Kc3 Kf4 12.Kd4 Kg3 13.Ke5 >Kxh3 > +- (1.60) Depth: 15/17 00:00:02 131kN, tb=45 >6...Ke7 7.Kc5 Kf6 8.Kd4 Ke7 9.Kc4 Kf7 10.Kd3 Kf6 11.Kc3 Ke5 12.Kc4 Ke4 13.Kb4 >Ke5 14.Kc5 > +- (1.58) Depth: 16/25 00:00:02 166kN, tb=74 >6...Ke7 7.Kc6 Kf7 8.Kc5 Kf6 9.Kd6 Kf7 10.Kd7 Kf6 11.Kc7 g6 12.fxg6 Ke7 13.g7 Kf7 >14.Kd6 Kg8 15.Ke5 Kxg7 > +- (1.58) Depth: 17/31 00:00:02 436kN, tb=123 >6...Ke7 7.Kc6 Kf7 8.Kc5 Kf6 9.Kd4 Ke7 10.Kc4 Kf6 11.Kd3 Ke5 12.Ke3 Kd6 13.Kd2 >Ke5 14.Kd3 Kd5 15.Ke3 > +- (1.58) Depth: 18/32 00:00:02 520kN, tb=270 >6...Ke7 7.Kc6 Kf7 8.Kc5 Ke7 9.Kc4 Kd7 10.Kd4 Kd6 11.Kd3 Kd5 12.Kc2 Kc4 13.Kd2 >Kd4 14.Ke2 Ke4 15.Kf2 Kd4 > +- (1.54) Depth: 19/32 00:00:02 813kN, tb=377 >6...Ke7 7.Kc6 Kf7 8.Kc5 Ke7 9.Kc4 Kd7 10.Kd3 Kc7 11.Kc3 Kd7 12.Kc4 Kc6 13.Kb4 >Kd5 14.Kc3 Ke5 15.Kc4 Ke4 16.Kc5 > +- (1.58) Depth: 20/32 00:00:02 996kN, tb=538 >6...Ke7 7.Kc6 Kf7 8.Kd7 Kf8 9.Ke6 Ke8 10.Kd6 Kf8 11.Kc5 Kf7 12.Kd4 Kf6 13.Kc4 >Ke5 14.Kc3 Kf4 15.Kd4 Kg3 16.Ke4 Kxh3 > +- (1.60) Depth: 21/36 00:00:02 1408kN, tb=1360 >6...Ke7 7.Kc6 Kf7 8.Kd7 Kf8 9.Ke6 Ke8 10.Kd6 Kf8 11.Kd7 Kf7 12.Kc7 Ke7 13.Kc8 >Ke8 14.Kb7 Ke7 15.Kc7 Kf6 16.Kb6 Ke5 17.Kc5 > +- (1.58) Depth: 22/38 00:00:02 1591kN, tb=1536 >6...Ke7 7.Kc6 Kf7 8.Kd7 Kf8 9.Ke6 Ke8 10.Kd6 Kf8 11.Kd7 Kf7 12.Kd8 Kf8 13.Kc7 >Kf7 14.Kb6 g6 15.fxg6+ Kf6 16.Kc5 Ke7 17.Kd4 Kf6 18.g7 Kxg7 > +- (1.58) Depth: 23/45 00:00:02 1909kN, tb=1803 >6...Ke7 7.Kc6 Kf7 8.Kd7 Kf8 9.Ke6 Ke8 10.Kd6 Kf8 11.Kd7 Kf7 12.Kd8 Kf8 13.Kc7 >Ke8 14.Kc8 Ke7 15.Kb8 Kf8 16.Kb7 Ke7 17.Kb6 Kd6 18.Kb5 > +- (1.58) Depth: 24/45 00:00:03 2081kN, tb=2166 >6...Ke7 7.Kc6 Kf7 8.Kd7 Kf8 9.Ke6 Ke8 10.Kd6 Kf8 11.Kd7 Kf7 12.Kc6 Ke7 13.Kc7 >Kf7 14.Kb6 Kf6 15.Kc5 Ke5 16.Kc6 Kf4 17.Kd5 Kg3 18.Ke4 Kxh3 > +- (1.60) Depth: 25/52 00:00:03 2829kN, tb=3136 >6...Ke7 7.Kc6 Kf7 8.Kd7 Kf8 9.Ke6 Ke8 10.Kd6 Kf8 11.Kd7 Kf7 12.Kd8 Kf8 13.Kc7 >Ke8 14.Kc8 Ke7 15.Kb7 Kd7 16.Ka6 Kc6 17.Ka7 Kc7 18.Ka8 Kc8 19.Ka7 > +- (1.58) Depth: 26/60 00:00:03 3591kN, tb=3241 >6...Ke7 7.Kc6 Kf7 8.Kd7 Kf8 9.Ke6 Ke8 10.Kd6 Kf8 11.Kd7 Kf7 12.Kd8 Kf8 13.Kc8 >Ke8 14.Kb7 Ke7 15.Kc7 Kf7 16.Kb6 g6 17.fxg6+ Kf6 18.Kc5 Ke7 19.Kd4 Kf6 20.g7 >Kxg7 > +- (1.58) Depth: 27/60 00:00:03 4650kN, tb=4137 >6...Ke7 7.Kc6 Kf6 8.Kd6 Kf7 9.Kd7 Kf8 10.Ke6 Ke8 11.f6 g6 12.f7+ Kf8 13.Kd6 Kxf7 >14.Kd7 Kf6 15.Ke8 Kg7 16.Ke7 Kh7 17.Kf7 Kh6 18.Kf6 Kh7 19.Kxg5 > +- (#29) Depth: 28/60 00:00:35 46602kN, tb=6225 >6...Ke7 7.Kc6 Kf6 8.Kd6 Kf7 9.Kd7 Kf8 10.Ke6 Ke8 11.f6 g6 12.f7+ Kf8 13.Kd6 Kxf7 >14.Kd7 Kf6 15.Ke8 Kg7 16.Ke7 Kh7 17.Kf7 Kh6 18.Kf6 Kh7 19.Kxg5 > +- (#29) Depth: 29/60 00:00:42 55160kN, tb=7703 > >(, 17.11.2005)
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