Author: Mike Byrne
Date: 16:33:49 06/29/03
Go up one level in this thread
On June 29, 2003 at 15:30:03, Jeremiah Penery wrote: >[D]8/5p1p/8/6k1/8/6P1/5PP1/7K w - - > >This position was part of a test posted quite some time ago. All the other >positions were solved without huge difficulty by programs, but this one was not. > I've seen a couple of times where programs come up with the first move, but >they don't really know what's going on. > >I want to see a program get the correct line with a decent score (more than +1 >or so). > >The line is 1. Kh2 f6 2. Kh1! f5 3. Kg1 Kf6 4. Kf1 Ke5 5. Ke1 Kd5 6. Kd1 Ke5 7. >Kc2! Kd4 8. Kd2 Ke4 9. Ke2 h6 10. Kf1! Ke5 11. Kg1 Kf6 12. Kh2 Kg6 13. Kh3, and >now the win is not hard to find. I let Crafty run for an hour - it will need at least 5 more ply to see mate from the starting point IMO. I think it clearly sees the winning strategy. It;s a mate-in 15 if follow the PV. Sometimes that does not always work-- so use it cautiously. 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kd4 8.Kd2 h6 9.Ke2 Ke4 10.Kf1 Kd4 11.Kg1 Kd3 12.f4 Ke4 13.Kh2 Ke3 14.Kh3 Ke4 15.Kh4 Ke3 16.Kh5 Kd3 and mate-in-15. Best, Michael New game 8/5p1p/8/6k1/8/6P1/5PP1/7K w - - 0 1 Analysis by Crafty 19.03 ST: 1.f3 Kf5 2.g4+ Kf4 3.Kh2 f6 4.Kh3 h6 5.Kh4 ± (0.98) Depth: 8 00:00:00 14kN 1.Kg1 h5 2.Kf1 Kf5 3.Ke2 Ke4 4.f3+ Ke5 5.Ke3 ± (1.01) Depth: 8 00:00:00 29kN 1.Kg1 h5 2.Kf1 Kf5 3.Ke2 Ke4 4.f3+ Ke5 5.Ke3 ± (1.01) Depth: 8 00:00:00 29kN 1.Kg1 h5 2.Kf1 Kf5 3.Ke2 Ke4 4.f3+ Ke5 5.Ke3 ± (1.01) Depth: 9 00:00:00 29kN 1.Kg1 h5 2.Kf1 Kf5 3.Ke2 Ke4 4.f3+ Ke5 5.Ke3 ± (1.01) Depth: 9 00:00:00 29kN 1.Kg1 h5 2.Kf1 Kf5 3.Ke2 Ke4 4.f3+ Ke5 5.Ke3 f5 6.f4+ Ke6 ± (1.02) Depth: 10 00:00:00 47kN 1.Kg1 h5 2.Kf1 Kf5 3.Ke2 Ke4 4.f3+ Ke5 5.Ke3 f5 6.f4+ Ke6 ± (1.02) Depth: 10 00:00:00 57kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke6 4.Ke3 Ke5 5.Kd3 f6 6.f4+ Kf5 7.Ke3 Kg4 ± (1.03) Depth: 11 00:00:00 86kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke6 4.Ke3 Ke5 5.Kd3 f6 6.f4+ Kf5 7.Ke3 Kg4 ± (1.03) Depth: 11 00:00:00 91kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke5 4.Ke3 f5 5.f4+ Ke6 6.Kd3 Kf6 7.Ke3 ± (1.02) Depth: 12 00:00:00 124kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke5 4.Ke3 f5 5.f4+ Ke6 6.Kd3 Kf6 7.Ke3 ± (1.02) Depth: 12 00:00:01 217kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke5 4.Ke3 f5 5.f4+ Ke6 6.Kd3 Kf6 7.Ke3 Kg6 ± (1.02) Depth: 13 00:00:01 258kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke5 4.Ke3 f5 5.f4+ Ke6 6.Kd3 Kf6 7.Ke3 Kg6 ± (1.02) Depth: 13 00:00:01 324kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke5 4.Ke3 f5 5.f4+ Ke6 6.Ke2 Kf6 7.Kd3 Kg6 8.Ke3 ± (1.02) Depth: 14 00:00:01 403kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke5 4.Ke3 f5 5.f4+ Ke6 6.Ke2 Kf6 7.Kd3 Kg6 8.Ke3 ± (1.02) Depth: 14 00:00:01 414kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke5 4.Ke3 f5 5.f4+ Ke6 6.Ke2 Kf6 7.Kd3 Kg6 8.Ke3 Kf6 ± (1.02) Depth: 15 00:00:01 518kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke5 4.Ke3 f5 5.f4+ Ke6 6.Ke2 Kf6 7.Kd3 Kg6 8.Ke3 Kf6 ± (1.02) Depth: 15 00:00:01 725kN 1.Kg1 h5 2.f3 Kf5 3.Kf2 Ke5 4.Ke3 f5 5.Kf2 Kf6 6.Ke2 Kg6 7.f4 Kf6 8.Kd3 ± (1.02) Depth: 16 00:00:02 899kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke4 5.f3+ Ke5 6.Kd3 Kf5 7.Kd4 Kg6 8.Ke3 Kf5 9.f4 ± (1.03) Depth: 16 00:00:02 1182kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke4 5.f3+ Ke5 6.Kd3 Kf5 7.Kd4 Kg6 8.Ke3 Kf5 9.f4 ± (1.03) Depth: 16 00:00:02 1186kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke4 5.f3+ Ke5 6.Kd3 Kf5 7.Ke3 Kg6 8.Kf4 f5 9.Ke5 Kg5 ± (1.11) Depth: 17 00:00:03 1666kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke4 5.f3+ Ke5 6.Kd3 Kf5 7.Ke3 Kg6 8.Kf4 f5 9.Ke5 Kg5 ± (1.11) Depth: 17 00:00:03 1703kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke4 5.f3+ Ke5 6.Kd3 Kf5 7.Ke3 Kg6 8.Kf4 f5 9.Ke5 Kg5 10.Ke6 ± (1.11) Depth: 18 00:00:04 2164kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke4 5.f3+ Ke5 6.Kd3 Kf5 7.Ke3 Kg6 8.Kf4 f5 9.Ke5 Kg5 10.Ke6 ± (1.11) Depth: 18 00:00:04 2206kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke6 5.Kd2 Kd6 6.Ke3 Ke5 7.f3 f5 8.Ke2 Kd5 9.Kd3 Ke6 10.Ke3 ± (1.11) Depth: 19 00:00:04 2804kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke6 5.Kd2 Kd6 6.Ke3 Ke5 7.f3 f5 8.Ke2 Kd5 9.Kd3 Ke6 10.Ke3 ± (1.11) Depth: 19 00:00:05 2892kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke6 5.Kd2 Kd6 6.Ke3 Ke5 7.Kd3 Kd5 8.f3 f5 9.f4 Kc5 10.g4 fxg4 ± (1.03) Depth: 20 00:00:06 3677kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke6 5.Kd2 Kd6 6.Ke3 Ke5 7.Kd3 Kd5 8.f3 f5 9.f4 Kc5 10.g4 fxg4 ± (1.03) Depth: 20 00:00:09 5357kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke6 5.Kd2 Kd6 6.Ke3 Ke5 7.Kd3 Kd5 8.f3 f5 9.Ke3 Ke5 10.Ke2 Ke6 11.Ke3 ± (1.11) Depth: 21 00:00:10 6293kN 1.Kh2 f6 2.Kg1 h5 3.Kf1 Kf5 4.Ke2 Ke6 5.Kd2 Kd6 6.Ke3 Ke5 7.Kd3 Kd5 8.f3 f5 9.Ke3 Ke5 10.Ke2 Ke6 11.Ke3 ± (1.11) Depth: 21 00:00:10 6400kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 h6 8.f3+ Kd4 9.Ke1 Ke5 10.Kf2 Kf6 11.Ke3 Kg5 12.f4+ Kg4 ± (1.03) Depth: 22 00:00:12 7582kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 h6 8.f3+ Kd4 9.Ke1 Ke5 10.Kf2 Kf6 11.Ke3 Kg5 12.f4+ Kg4 ± (1.03) Depth: 22 00:00:14 8662kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 h6 8.f3+ Kd5 9.Ke3 Ke5 ± (1.03) Depth: 23 00:00:15 9570kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 h6 8.f3+ Kd5 9.Ke3 Ke5 ± (1.03) Depth: 23 00:00:16 9772kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 Kd4 8.Kf3 ± (1.03) Depth: 24 00:00:19 11256kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 Kd4 8.Kf3 ± (1.03) Depth: 24 00:00:19 11366kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 h6 8.Kd2 Kd4 9.f3 Kd5 10.Kc3 Ke5 11.Kd3 Kd5 12.Kd2 Ke5 13.Ke3 ± (1.04) Depth: 25 00:00:22 13511kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 h6 8.Kd2 Kd4 9.f3 Kd5 10.Kc3 Ke5 11.Kd3 Kd5 12.Kd2 Ke5 13.Ke3 ± (1.04) Depth: 25 00:00:22 13635kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 h6 8.Kd2 Kd4 9.Ke1 Ke5 10.Kf1 Kd4 11.f3 Ke5 12.Kf2 Kf6 13.Ke3 Kg5 14.f4+ Kg4 ± (1.03) Depth: 26 00:00:28 15982kN 1.Kh2 f6 2.Kh3 f5 3.Kh2 Kg6 4.Kg1 Kf6 5.Kf1 Ke5 6.Ke1 Ke4 7.Ke2 h6 8.Kd2 Kd4 9.Ke1 Ke5 10.Kf1 Kd4 11.f3 Ke5 12.Kf2 Kf6 13.Ke3 Kg5 14.f4+ Kg4 ± (1.03) Depth: 26 00:00:28 16189kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Ke3 Kg4 10.Kd4 ± (1.26) Depth: 27 00:00:40 24284kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Ke3 Kg4 10.Kd4 ± (1.26) Depth: 27 00:00:41 24441kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Kd3 Kg4 10.Kd4 Kg5 11.Kc4 ± (1.24) Depth: 28 00:00:49 27625kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Kd3 Kg4 10.Kd4 Kg5 11.Kc4 ± (1.24) Depth: 28 00:00:49 27841kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Kd3 Kg4 10.Kd4 Kh5 11.Ke5 Kg5 12.Ke6 Kg6 13.Kd5 Kh5 14.Kd6 ± (1.24) Depth: 29 00:01:02 33101kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Kd3 Kg4 10.Kd4 Kh5 11.Ke5 Kg5 12.Ke6 Kg6 13.Kd5 Kh5 14.Kd6 ± (1.24) Depth: 29 00:01:04 33379kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Kd3 Kg4 10.Ke3 Kg5 11.Kf3 ± (1.30) Depth: 30 00:01:29 47915kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Kd3 Kg4 10.Ke3 Kg5 11.Kf3 ± (1.30) Depth: 30 00:01:30 48179kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Kd3 Kg4 10.Ke3 Kg5 11.Kf3 ± (1.30) Depth: 31 00:02:00 58822kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kf6 8.Kd2 Kg5 9.Kd3 Kg4 10.Ke3 Kg5 11.Kf3 ± (1.30) Depth: 31 00:02:01 59177kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kd4 8.Kd2 h6 9.Ke2 Ke4 10.Kf1 Kd4 11.Kg1 Ke5 12.Kh1 Kd4 13.Kh2 Kd3 ± (1.23) Depth: 32 00:02:35 78884kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kd4 8.Kd2 h6 9.Ke2 Ke4 10.Kf1 Kd4 11.Kg1 Ke5 12.Kh1 Kd4 13.Kh2 Kd3 ± (1.23) Depth: 32 00:02:37 79556kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kd4 8.Kd2 h6 9.Ke2 Ke4 10.Kf1 Kd4 11.Kg1 Ke5 12.Kh2 Kd4 13.Kh3 Kd3 14.f4 Ke4 15.Kh4 Ke3 16.Kh5 Kf2 +- (1.43) Depth: 33 00:04:23 153558kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kd4 8.Kd2 h6 9.Ke2 Ke4 10.Kf1 Kd4 11.Kg1 Ke5 12.Kh2 Kd4 13.Kh3 Kd3 14.f4 Ke4 15.Kh4 Ke3 16.Kh5 Kf2 +- (1.43) Depth: 33 00:04:28 157047kN 1.Kh2 +- (1.83) Depth: 34 00:07:42 336395kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kd4 8.Kd2 h6 9.Ke2 Ke4 10.Kf1 Kd4 11.Kg1 Kd3 12.f4 Ke4 13.Kh2 Kd4 14.Kh3 Ke3 15.Kh4 Ke4 16.Kh5 Ke3 +- (2.14) Depth: 34 00:12:27 641103kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kd4 8.Kd2 h6 9.Ke2 Ke4 10.Kf1 Kd4 11.Kg1 Kd3 12.f4 Ke4 13.Kh2 Kd4 14.Kh3 Ke3 15.Kh4 Ke4 16.Kh5 Ke3 +- (2.14) Depth: 34 00:14:10 727899kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kd4 8.Kd2 h6 9.Ke2 Ke4 10.Kf1 Kd4 11.Kg1 Kd3 12.f4 Ke4 13.Kh2 Ke3 14.Kh3 Ke4 15.Kh4 Ke3 16.Kh5 Kd3 +- (2.14) Depth: 35 00:24:17 1272495kN 1.Kh2 f6 2.Kh1 f5 3.Kg1 Kf6 4.Kf1 Ke5 5.Ke1 Kd5 6.Kd1 Ke5 7.Kc2 Kd4 8.Kd2 h6 9.Ke2 Ke4 10.Kf1 Kd4 11.Kg1 Kd3 12.f4 Ke4 13.Kh2 Ke3 14.Kh3 Ke4 15.Kh4 Ke3 16.Kh5 Kd3 +- (2.14) Depth: 35 00:37:07 1904495kN (Byrne, Secane, PA USA 29.06.2003)
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