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Subject: How long to see black is winning + crafty bench

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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