Author: Kim Roper Jensen
Date: 10:46:11 03/26/05
Hi From a game i played against a friend over the board, we came to this pawn endgame [D] 8/1p1k4/5p2/2Pp2p1/P2P3p/8/6PP/6K1 w - - 0 1 and looked at it after the game briefly. Later I looked at it with scid/crafty 19.19(amd64 3500+, 368M hash, 64 bit linux, bench at the end of post) and crafty lacking egtb had some time seeing that its won - how fast does other programs see this ? clearing hash tables time surplus 9:30 time limit 1:00 (5:00) depth time score variation (1) 10 0.05 0.00 1. Kf2 Kc6 2. Kf3 f5 3. Ke3 Kc7 4. a5 Kc6 5. Kf3 Kb5 10-> 0.07 0.00 1. Kf2 Kc6 2. Kf3 f5 3. Ke3 Kc7 4. a5 Kc6 5. Kf3 Kb5 11 0.12 0.00 1. Kf2 Kc6 2. Kf3 f5 3. Ke3 Kc7 4. Kf3 Kd7 5. a5 Kc6 6. Ke3 11-> 0.14 0.00 1. Kf2 Kc6 2. Kf3 f5 3. Ke3 Kc7 4. Kf3 Kd7 5. a5 Kc6 6. Ke3 12 0.23 0.00 1. Kf2 Kc6 2. Kf3 f5 3. Ke3 Kc7 4. Kf3 Kd7 5. a5 Kc6 6. Ke3 Kb5 12-> 0.26 0.00 1. Kf2 Kc6 2. Kf3 f5 3. Ke3 Kc7 4. Kf3 Kd7 5. a5 Kc6 6. Ke3 Kb5 13 0.43 0.00 1. Kf2 Kc6 2. Kf3 f5 3. Ke3 Kc7 4. Kf3 Kd7 5. Ke3 Kc6 6. h3 f4+ 7. Kf3 Kc7 13-> 0.46 0.00 1. Kf2 Kc6 2. Kf3 f5 3. Ke3 Kc7 4. Kf3 Kd7 5. Ke3 Kc6 6. h3 f4+ 7. Kf3 Kc7 14 1.08 0.00 1. Kf2 Kc6 2. Ke3 f5 3. Kd3 Kd7 4. Ke2 Kc7 5. Kf3 b6 <HT> 14-> 1.13 0.00 1. Kf2 Kc6 2. Ke3 f5 3. Kd3 Kd7 4. Ke2 Kc7 5. Kf3 b6 <HT> 15 1.72 0.00 1. Kf2 Kc6 2. Ke3 f5 3. Kd3 Kd7 4. Ke2 Kc7 5. Kf3 b6 <HT> 15-> 1.87 0.00 1. Kf2 Kc6 2. Ke3 f5 3. Kd3 Kd7 4. Ke2 Kc7 5. Kf3 b6 <HT> 16 4.99 -1 1. Kf2 16 5.93 -0.40 1. Kf2 f5 2. g3 hxg3+ 3. Kxg3 f4+ 4. Kg4 Kc6 5. a5 Kb5 6. h4 f3 7. Kxf3 gxh4 8. Kg4 Kxa5 9. Kxh4 b5 10. cxb6 Kxb6 16-> 6.08 -0.40 1. Kf2 f5 2. g3 hxg3+ 3. Kxg3 f4+ 4. Kg4 Kc6 5. a5 Kb5 6. h4 f3 7. Kxf3 gxh4 8. Kg4 Kxa5 9. Kxh4 b5 10. cxb6 Kxb6 17 8.55 -0.30 1. Kf2 f5 2. g3 hxg3+ 3. Kxg3 f4+ 4. Kg4 Kc6 5. h4 f3 6. Kxf3 gxh4 7. Kg4 b6 8. cxb6 Kxb6 9. Kxh4 Ka5 10. Kg5 Kxa4 11. Kf4 17-> 8.67 -0.30 1. Kf2 f5 2. g3 hxg3+ 3. Kxg3 f4+ 4. Kg4 Kc6 5. h4 f3 6. Kxf3 gxh4 7. Kg4 b6 8. cxb6 Kxb6 9. Kxh4 Ka5 10. Kg5 Kxa4 11. Kf4 18 15.95 -0.40 1. Kf2 f5 2. h3 Kc6 3. g3 hxg3+ 4. Kxg3 f4+ 5. Kg4 b6 6. cxb6 Kxb6 7. h4 gxh4 8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb5 11. Kf5 Kb4 18-> 16.17 -0.40 1. Kf2 f5 2. h3 Kc6 3. g3 hxg3+ 4. Kxg3 f4+ 5. Kg4 b6 6. cxb6 Kxb6 7. h4 gxh4 8. Kxh4 Ka5 9. Kg4 Kxa4 10. Kxf4 Kb5 11. Kf5 Kb4 19 23.65 -0.40 1. Kf2 f5 2. h3 Kc6 3. g3 hxg3+ 4. Kxg3 f4+ 5. Kg4 b6 6. cxb6 Kxb6 7. h4 f3 8. Kxf3 gxh4 9. Kg4 Ka5 10. Kxh4 Kxa4 11. Kg5 Kb3 12. Kf4 19-> 23.98 -0.40 1. Kf2 f5 2. h3 Kc6 3. g3 hxg3+ 4. Kxg3 f4+ 5. Kg4 b6 6. cxb6 Kxb6 7. h4 f3 8. Kxf3 gxh4 9. Kg4 Ka5 10. Kxh4 Kxa4 11. Kg5 Kb3 12. Kf4 20 31.31 -1 1. Kf2 20 46.61 -1.20 1. Kf2 f5 2. h3 Kc7 3. Kf3 b6 4. cxb6+ Kxb6 5. g3 hxg3 6. Kxg3 Ka5 7. h4 gxh4+ 8. Kxh4 Kxa4 9. Kg5 Kb3 10. Kxf5 Kc3 11. Ke5 Kc4 12. Ke6 Kxd4 20-> 50.68 -1.20 1. Kf2 f5 2. h3 Kc7 3. Kf3 b6 4. cxb6+ Kxb6 5. g3 hxg3 6. Kxg3 Ka5 7. h4 gxh4+ 8. Kxh4 Kxa4 9. Kg5 Kb3 10. Kxf5 Kc3 11. Ke5 Kc4 12. Ke6 Kxd4 time=1:00 cpu=95% mat=0 n=128643783 fh=96% nps=2.14M ext-> chk=6345394 cap=594057 pp=3211410 1rep=221334 mate=1489 predicted=0 nodes=128643783 evals=36635393 50move=0 endgame tablebase-> probes=0 hits=0 SMP-> split=0 stop=0 data=0/128 cpu=57.06 elap=1:00 craftybench ----------- Crafty v19.19 (1 cpus) White(1): bench Running benchmark. . . ...... Total nodes: 96761642 Raw nodes per second: 2058758 Total elapsed time: 47 SMP time-to-ply measurement: 13.617021
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