Author: Daniel Shawul
Date: 20:06:36 12/20/04
Go up one level in this thread
On December 20, 2004 at 07:11:40, Dieter Buerssner wrote:
>On December 20, 2004 at 04:53:42, Peter McKenzie wrote:
>
>>8/p7/7p/4k1p/6PP/P3K3/8/8 w - -
>>
>>White to play and draw.
>>
>>I saw this one in Informator 45 (1988).
>>1.a4 gxh4 2.a5! is the drawing line given.
>>
>>Warp doesn't get it but maybe other programs do. Tablebases could be a big help
>
>Yace gets it rather fast with or without TBs. with tables:
>
>
> 68707 0.079 -1.25 6. 1.h5 a6 2.Kf3 Kd4 3.Kg3 a5 4.Kf3 Kc3 5.Ke4 Kb3
> 6.Kd5 Kxa3 {-80}
> 73798 0.084 -1.92 7-- 1.h5 a6 2.Kf3 Kd4 3.Kg2 Ke4 4.Kg3 a5 5.Kg2 Kf4
> 6.Kf2 Kxg4 7.Ke3 {-80}
> 83820 0.094 -1.96 7t 1.h5 a6 2.Kf3 Kd4 3.a4H a5H 4.Kf2H Kd5H 5.Kg2H
> Kd4H 6.Kh3H Kc4H 7.Kg3H Kb3H 8.Kf3H Kxa4H {-80}
> 159774 0.173 -1.94 7t+ 1.a4 gxh4 2.a5 Kd5 3.Kf3 Kc4 4.Kg2 Kd5 5.Kf2 a6
> 6.Ke3 h3 7.Kf3 Kd4H 8.Kg3H {-80}
> 193641 0.208 -1.07 7t 1.a4 gxh4 2.a5 Ke6 3.Kf2 Kf6 4.a6 Kg7H 5.Kg2H
> Kg6H 6.Kh1H Kf6H 7.Kh2H Kg6H 8.Kh3H Kg5H 9.Kh2H
> {-80}
> 205223 0.222 -1.07 7. 1.a4 gxh4 2.a5 Ke6 3.Kf2 Kf6 4.a6 Kg7 5.Kg2 Kg6
> 6.Kh1 Kf6 7.Kh2 Kg6 8.Kh3 Kg5 9.Kh2 {-80}
> 310528 0.333 -0.67 8++ 1.a4 Ke6 2.a5 Ke5 3.Kf3 Kd5 4.Kg2 Ke6 5.Kf3 Kf6
> 6.Ke3 h5 7.gxh5 Ke7 8.Kd3 g4H 9.h6H Kf6H
> 10.Ke3H Kf7H 11.Kd3H Ke6H 12.Ke3H Ke5H 13.Kd3H
> Ke6H 14.Ke3H Ke5H 15.Kd3H Ke6HR {80}
> 436267 0.460 -0.60 8t 1.a4 gxh4 2.a5 Ke6 3.a6 Kd5 4.Kf3 Ke5H 5.Ke3H
> Ke6H 6.Kf2H h5H 7.gxh5H h3H 8.h6H Kd6H 9.h7H
> h2H 10.h8=QH h1=QH {0}
> 459204 0.483 -0.60 8. 1.a4 gxh4 2.a5 Ke6 3.a6 Kd5 4.Kf3 Ke5 5.Ke3 Ke6
> 6.Kf2 h5 7.gxh5 h3 8.h6 Kd6 9.h7 h2 10.h8=Q
> h1=Q {0}
> 658225 0.680 -0.20 9++ 1.a4 gxh4 2.a5 Ke6 3.Kf2 Kd5 4.Kg2 h5 5.gxh5
> Kc4 6.Kf2 h3 7.a6 Kd4 8.h6 Ke5 9.h7 Kd6
> 10.h8=QH h2H {HT}
> 710649 0.745 0.00 9t 1.a4 gxh4 2.a5 h3 3.Kf3 a6 4.Kg3 Kd4 5.Kxh3 Ke4
> 6.Kg3 Ke3 7.Kh3 Kf4 8.Kh4H Ke4H 9.Kg3H Ke3H
> 10.Kh3H Kf4H 11.Kh4H Ke4H 12.Kg3HR {0}
> 740983 0.780 0.00 9. 1.a4 gxh4 2.a5 h3 3.Kf3 a6 4.Kg3 Kd4 5.Kxh3 Ke4
> 6.Kg3 Ke3 7.Kh3 Kf4 8.Kh4 Ke4 9.Kg3 Ke3 10.Kh3
> Kf4 11.Kh4 Ke4 12.Kg3 {0}
> 959111 1.035 0.00 10t 1.a4 gxh4 2.a5 h3 3.Kf3 a6 4.Kg3 Kd4 5.Kxh3 Ke4
> 6.Kg3 Ke3 7.Kh3 Kf4 8.Kh4 Ke4 9.Kg3 {0}
> 997226 1.083 0.00 10. 1.a4 gxh4 2.a5 h3 3.Kf3 a6 4.Kg3 Kd4 5.Kxh3 Ke4
> 6.Kg3 Ke3 7.Kh3 Kf4 8.Kh4 Ke4 9.Kg3 {0}
>
>Without:
>
> 305588 0.279 -1.55 8. 1.hxg5 hxg5 2.a4 a5 3.Kf3 Kd4 4.Ke2 Ke4 5.Kd2
> Kf4 6.Kd3 Kxg4 7.Ke4 Kg3 8.Ke5 g4 9.Kf5 Kh4
> 10.Ke4 g3 11.Kf3 Kh3 {-80}
> 347056 0.315 -1.95 9-- 1.hxg5 hxg5 2.a4 a5 3.Kd3 Kf4 4.Kd4 Kxg4 5.Ke4
> Kh4 6.Kd5 g4 7.Kc6 g3 8.Kb6 Kh3 9.Kxa5 g2
> 10.Kb5 {0}
> 476977 0.433 -2.34 9t 1.hxg5 hxg5 2.a4 a5 3.Kf3 Kd4 4.Ke2 Ke4 5.Kf2
> Kf4 6.Kf1 Kxg4 7.Kg2 Kf4 8.Kf2 g4 9.Kg2 g3H
> {-80}
> 696894 0.632 -2.33 9t+ 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 Kf4 5.Kxh2
> Kxg4 6.a6 h5 7.Kg2 h4 8.Kg1 h3 9.Kh2 Kf3 {-80}
> 832573 0.760 -2.10 9t 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 Kf4 5.Kxh2
> Kxg4 6.Kg1 h5 7.Kg2 h4 8.a6H h3+H 9.Kh2H Kh4H
> {-80}
> 897894 0.821 -2.10 9. 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 Kf4 5.Kxh2
> Kxg4 6.Kg1 h5 7.Kg2 h4 8.a6 h3+ 9.Kh2 Kh4 {-80}
> 1195413 1.088 -2.34 10t 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 Kf4 5.a6 Kxg4
> 6.Kh1 h5H 7.Kxh2H h4H 8.Kg2H h3+H 9.Kh2H Kh4H
> 10.Kg1H Kg3H 11.Kh1H Kf4H {-80}
> 1322637 1.203 -2.34 10. 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 Kf4 5.a6 Kxg4
> 6.Kh1 h5 7.Kxh2 h4 8.Kg2 h3+ 9.Kh2 Kh4 10.Kg1
> Kg3 11.Kh1 Kf4 {-80}
> 1758591 1.601 -2.45 11t 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 Kf4 5.a6 Kxg4
> 6.Kh1 h5 7.Kxh2 h4 8.Kg2 h3+ 9.Kg1 Kh5 10.Kh1
> Kg5 11.Kg1H Kh5H 12.Kh1H Kg5H 13.Kg1H Kh5HR
> {-80}
> 1871042 1.699 -2.45 11. 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 Kf4 5.a6 Kxg4
> 6.Kh1 h5 7.Kxh2 h4 8.Kg2 h3+ 9.Kg1 Kh5 10.Kh1
> Kg5 11.Kg1 Kh5 12.Kh1 Kg5 13.Kg1 Kh5 {-80}
> 2770681 2.522 -2.46 12t 1.a4 gxh4 2.a5 a6 3.Kf3 Kf6 4.Kg2 Kg5 5.Kh3 h5
> 6.gxh5 Kxh5 7.Kh2H Kg4H 8.Kg2H Kg5H 9.Kh2H Kf6H
> 10.Kh3H Kg5H 11.Kh2H Kf6H 12.Kh3H Kg5H 13.Kh2HR
> {-80}
> 2914249 2.650 -2.46 12. 1.a4 gxh4 2.a5 a6 3.Kf3 Kf6 4.Kg2 Kg5 5.Kh3 h5
> 6.gxh5 Kxh5 7.Kh2 Kg4 8.Kg2 Kg5 9.Kh2 Kf6
> 10.Kh3 Kg5 11.Kh2 Kf6 12.Kh3 Kg5 13.Kh2 {-80}
> 3928550 3.585 -2.39 13t 1.a4 gxh4 2.a5 a6 3.Kf3 Kf6 4.Kg2 Kg5 5.Kh3 h5
> 6.gxh5 Kxh5 7.Kh2 Kg4 8.Kg2 h3+ 9.Kf2 Kf4
> 10.Kg1 Kg5 11.Kf2H Kf4H 12.Kg1H Kg5H 13.Kf2H
> Kf4HR {-80}
> 4087844 3.729 -2.39 13. 1.a4 gxh4 2.a5 a6 3.Kf3 Kf6 4.Kg2 Kg5 5.Kh3 h5
> 6.gxh5 Kxh5 7.Kh2 Kg4 8.Kg2 h3+ 9.Kf2 Kf4
> 10.Kg1 Kg5 11.Kf2 Kf4 12.Kg1 Kg5 13.Kf2 Kf4
> {-80}
> 5195139 4.763 -2.09 14t 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 Kf4 5.a6H
> h1=Q+H 6.Kxh1H Kxg4H 7.Kh2H h5H 8.Kg2H h4H
> 9.Kh2H Kh5H 10.Kg2H Kg4H 11.Kh2H Kh5H 12.Kg2H
> Kg4HR {-80}
> 5370039 4.924 -2.09 14. 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 Kf4 5.a6 h1=Q+
> 6.Kxh1 Kxg4 7.Kh2 h5 8.Kg2 h4 9.Kh2 Kh5 10.Kg2
> Kg4 11.Kh2 Kh5 12.Kg2 Kg4 {-80}
> 7170133 6.609 -1.70 15t 1.a4 gxh4 2.a5 a6 3.Kf3 Ke6 4.Kf2H Kd5H 5.Kg2H
> Kc5H 6.Kh2H Kb4H 7.Kh3H Kxa5H 8.Kxh4H Ka4H
> 9.Kh5H a5H 10.Kxh6H Kb3H 11.Kh7H a4H 12.g5H a3H
> 13.g6H a2H 14.g7H a1=QH 15.g8=Q+H Kc3H {HT}
> 7375311 6.825 -1.70 15. 1.a4 gxh4 2.a5 a6 3.Kf3 Ke6 4.Kf2 Kd5 5.Kg2 Kc5
> 6.Kh2 Kb4 7.Kh3 Kxa5 8.Kxh4 Ka4 9.Kh5 a5
> 10.Kxh6 Kb3 11.Kh7 a4 12.g5 a3 13.g6 a2 14.g7
> a1=Q 15.g8=Q+ Kc3
> 9207057 8.537 -1.31 16t 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2H h1=Q+H
> 5.Kxh1H Kd4H 6.Kg2H a6H 7.Kf2H Kd5H 8.Ke3H Ke5H
> 9.Kf3H Ke6H 10.Ke4H Kd7H 11.Kd4H Kd8H 12.g5H
> h5H 13.Ke4H h4H 14.Ke3H h3H 15.g6H Ke7H 16.g7H
> Kf7H 17.Kf3H Ke7H 18.g8=QH h2H {HT}
> 9439437 8.752 -1.31 16. 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 h1=Q+ 5.Kxh1
> Kd4 6.Kg2 a6 7.Kf2 Kd5 8.Ke3 Ke5 9.Kf3 Ke6
> 10.Ke4 Kd7 11.Kd4 Kd8 12.g5 h5 13.Ke4 h4 14.Ke3
> h3 15.g6 Ke7 16.g7 Kf7 17.Kf3 Ke7 18.g8=Q h2
> 11772283 10.920 -1.07 17t 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 h1=Q+ 5.Kxh1
> Kf4 6.Kg2 Kxg4 7.a6H Kf4H 8.Kh3H Kg5H 9.Kg3H
> Kf6H 10.Kh4H Kg7H 11.Kg3H h5H 12.Kh4H Kg6H
> 13.Kh3H Kf6H 14.Kg3H Kg5H 15.Kh3H Kf6H 16.Kg3H
> Kg5H 17.Kh3H Kf6HR {-80}
> 12033482 11.163 -1.07 17. 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 h1=Q+ 5.Kxh1
> Kf4 6.Kg2 Kxg4 7.a6 Kf4 8.Kh3 Kg5 9.Kg3 Kf6
> 10.Kh4 Kg7 11.Kg3 h5 12.Kh4 Kg6 13.Kh3 Kf6
> 14.Kg3 Kg5 15.Kh3 Kf6 16.Kg3 Kg5 17.Kh3 Kf6
> {-80}
> 14961475 13.945 -0.67 18++ 1.a4 gxh4 2.a5 h3 3.Kf3 h2 4.Kg2 h1=Q+ 5.Kxh1
> Kf4 6.Kg2 Ke4 7.a6 Kd4 8.Kh3 Kc5 9.Kg3 Kb5
> 10.Kf4 Kxa6 11.Kf5 Kb7 12.Kg6 a5 13.Kxh6 a4
> 14.g5 a3 15.g6 a2 16.g7 a1=R 17.g8=Q Kc6 {501}
> 20273680 19.175 -0.02 18t 1.a4 gxh4 2.a5 Ke6 3.a6 Kf6 4.Ke4H h3H 5.Kf3H
> Kg5H 6.Kg3H h2H 7.Kxh2H Kh4H 8.Kg2H Kg5H 9.Kf3H
> Kg6H 10.Kf4H Kf7H 11.Kf5H Kg7H 12.g5H h5H
> 13.Ke4H Kf7H 14.Kf3H Ke6H 15.Kf4H Ke7H 16.Kg3H
> Ke6H 17.Kh3H Kf5H 18.Kg3H Ke4H 19.Kf2H h4H
> 20.g6H h3H 21.g7H h2H 22.Kg2H h1=RH 23.g8=QH
> Kd3H {HT}
> 20816255 19.685 -0.02 18. 1.a4 gxh4 2.a5 Ke6 3.a6 Kf6 4.Ke4 h3 5.Kf3 Kg5
> 6.Kg3 h2 7.Kxh2 Kh4 8.Kg2 Kg5 9.Kf3 Kg6 10.Kf4
> Kf7 11.Kf5 Kg7 12.g5 h5 13.Ke4 Kf7 14.Kf3 Ke6
> 15.Kf4 Ke7 16.Kg3 Ke6 17.Kh3 Kf5 18.Kg3 Ke4
> 19.Kf2 h4 20.g6 h3 21.g7 h2 22.Kg2 h1=R 23.g8=Q
> Kd3
> 28317597 27.140 -0.01 19t 1.a4 gxh4 2.a5 Kd5 3.Kf3 Kc4 4.Kg2H Kb5H 5.Kh3H
> Kxa5H 6.Kxh4H Kb4H 7.Kh5H a5H 8.Kxh6H a4H 9.g5H
> a3H 10.g6H a2H 11.g7H a1=QH 12.g8=QH Qh1+H
> 13.Kg7H Kc3H {HT} {0}
> 29288660 28.088 -0.01 19. 1.a4 gxh4 2.a5 Kd5 3.Kf3 Kc4 4.Kg2 Kb5 5.Kh3
> Kxa5 6.Kxh4 Kb4 7.Kh5 a5 8.Kxh6 a4 9.g5 a3
> 10.g6 a2 11.g7 a1=Q 12.g8=Q Qh1+ 13.Kg7 Kc3
> 14.Qf7H {0}
> 36210888 41.089 -0.02 20t 1.a4 gxh4 2.a5 Kd5 3.Kf3 Kc4 4.Kg2 Kb5 5.Kh3
> Kxa5 6.Kxh4 Kb4 7.Kh5 a5 8.Kxh6 a4 9.g5 a3
> 10.g6 a2 11.g7 a1=Q 12.g8=Q Qh1+ 13.Kg7 Qg2+
> 14.Kf8 Qe4 15.Qf7H Kc3H {HT} {0}
> 37210287 42.105 -0.02 20. 1.a4 gxh4 2.a5 Kd5 3.Kf3 Kc4 4.Kg2 Kb5 5.Kh3
> Kxa5 6.Kxh4 Kb4 7.Kh5 a5 8.Kxh6 a4 9.g5 a3
> 10.g6 a2 11.g7 a1=Q 12.g8=Q Qh1+ 13.Kg7 Qg2+
> 14.Kf8 Qe4 15.Qf7 Kc3 {HT} {0}
> 51352663 56.709 0.00 21t 1.a4 gxh4 2.a5 Kd5 3.Kf3 Kc4 4.Kg2 Kb5 5.Kh3
> Kxa5 6.Kxh4 Kb4 7.Kh5 a5 8.Kxh6 a4 9.g5 a3
> 10.g6 a2 11.g7 a1=Q 12.g8=Q Qh1+ 13.Kg7 Qg2+
> 14.Kf8 Qe4 15.Qf7 Kc3 16.Qd7 Kb3 17.Qc7 {0}
> 54504624 59.904 0.00 21. 1.a4 gxh4 2.a5 Kd5 3.Kf3 Kc4 4.Kg2 Kb5 5.Kh3
> Kxa5 6.Kxh4 Kb4 7.Kh5 a5 8.Kxh6 a4 9.g5 a3
> 10.g6 a2 11.g7 a1=Q 12.g8=Q Qh1+ 13.Kg7 Qg2+
> 14.Kf8 Qe4 15.Qf7 Kc3 16.Qd7 Kb3 17.Qc7 {0}
>
>Regards,
>Dieter
I am surprised it showed a 0.00. Yace seems very strong in positions
with lots of transpositions. DanChess reaches a depth of 25 but score
is still at -2.4
daniel
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