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Subject: Re: what's going on in crafty here?

Author: Mike Byrne

Date: 18:10:56 02/11/04

Go up one level in this thread


Crafty v19.10 SE - 2004 CCT Champion [Fischer] (2 cpus) fails for low for good
with Rxh3 in 23 seconds on the 13th ply


Crafty v19.10 SE - 2004 CCT Champion [Fischer] (2 cpus)
Krafty Personality == Fischer (29)

SE code enabled

White(1):
White(1): 8/7p/8/4pp1k/8/r6P/P5R1/6K1 b - - 0 41
Black(1): st 999999
search time set to 999999.00.
Black(1): go
end-game phase
              clearing hash tables
              time surplus   0.00  time limit 16666:39 (16666:39)/(50)
              time surplus   0.00  time limit 16666:39 (16666:39)/(50)
              depth   time  score   variation (1)
starting thread 1
                3->   0.00  -2.92   1. ... Rxh3 2. Rg7 h6
                4     0.00  -2.62   1. ... Rxh3 2. Rg7 h6 3. Kf2
                4     0.02  -2.95   1. ... Kh4 2. Rd2 e4 3. Kf2 Kxh3
                4->   0.02  -2.95   1. ... Kh4 2. Rd2 e4 3. Kf2 Kxh3
                5     0.02  -2.87   1. ... Kh4 2. Rg7 Rg3+ 3. Rxg3 Kxg3
                                    4. a4 Kxh3
                5     0.03  -2.95   1. ... Rxh3 2. Rg7 h6 3. Kg2 Rd3
                5->   0.03  -2.95   1. ... Rxh3 2. Rg7 h6 3. Kg2 Rd3 (s=2)
                6     0.03  -2.69   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4
                6     0.05  -3.02   1. ... Kh4 2. Kf1 e4 3. Rd2 e3 4. Rh2
                6->   0.07  -3.02   1. ... Kh4 2. Kf1 e4 3. Rd2 e3 4. Rh2
                7     0.08  -3.08   1. ... Kh4 2. Rd2 e4 3. Kg2 Rg3+ 4.
                                    Kf1 Kxh3 5. Rd7
                7->   0.08  -3.08   1. ... Kh4 2. Rd2 e4 3. Kg2 Rg3+ 4.
                                    Kf1 Kxh3 5. Rd7
                8     0.14  -3.11   1. ... Kh4 2. Rd2 e4 3. Rd5 Kg5 4.
                                    Rd2 Rxh3 5. Kf2
                8->   0.16  -3.11   1. ... Kh4 2. Rd2 e4 3. Rd5 Kg5 4.
                                    Rd2 Rxh3 5. Kf2
                9     0.39  -3.08   1. ... Kh4 2. Re2 e4 3. Rf2 Rg3+ 4.
                                    Kf1 Kxh3 5. a4 Kg4 6. a5 <HT>
                9     0.61  -3.27   1. ... Rxh3 2. Rg7 h6 3. a4 Ra3 4.
                                    Re7 e4 5. Re5 Kg4
                9->   0.63  -3.27   1. ... Rxh3 2. Rg7 h6 3. a4 Ra3 4.
                                    Re7 e4 5. Re5 Kg4 (s=2)
               10     0.94  -3.36   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    Re5 Kg4 5. a4 e3 6. a5
               10->   1.38  -3.36   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    Re5 Kg4 5. a4 e3 6. a5 (s=2)
               11     2.24  -3.69   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4 Ra3 5. Re5 Kg4 6. a5 e3
               11->   2.77  -3.69   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4 Ra3 5. Re5 Kg4 6. a5 e3
               12     4.36  -3.53   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4 Ra3 5. Re5 Kg4 6. a5 Kf4 7. Rd5
               12->   7.83  -3.53   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4 Ra3 5. Re5 Kg4 6. a5 Kf4 7. Rd5
                                    (s=4)
               13    12.38     --   1. ... Rxh3
               13    12.74   0.95   1. ... Rxh3 2. Rh2 Rxh2 3. Kxh2 e4
                                    4. a4 f4 5. a5 Kg4 6. a6 e3 7. Kg2
                                    f3+ 8. Kf1 e2+ 9. Kf2 h5 10. a7 e1=R
                                    11. a8=Q <HT> (s=3)
               13    23.38  -3.60   1. ... Kh4 2. Rg7 h6 3. Rh7 Ra6 4.
                                    Re7 e4 5. Rf7 Rxa2 6. Rxf5 Kg3 7. Kf1
                                    e3 (s=2)
               13->  29.49  -3.60   1. ... Kh4 2. Rg7 h6 3. Rh7 Ra6 4.
                                    Re7 e4 5. Rf7 Rxa2 6. Rxf5 Kg3 7. Kf1
                                    e3
               14    45.52  -3.53   1. ... Kh4 2. Re2 e4 3. Rf2 Kxh3 4.
                                    Rxf5 Rxa2 5. Re5 Kg3 6. Rg5+ Kf4 7.
                                    Rh5 Ra7 8. Rh4+ Kf3 9. Kh2
?              14    53.50   9/18*  1. ... h6
Black(0): ?
              time=54.32  cpu=112%  mat=-1  n=42493214  fh=89%  nps=782K
              ext-> chk=2240906 cap=44859 pp=915089 1rep=85828 mate=13203
              predicted=0  nodes=42493214  evals=19864801
              endgame tablebase-> probes=15407  hits=15407
              SMP->  split=889  stop=88  data=5/128  cpu=1:01  elap=54.32

Black(1): Kh4
              time used:  54.32Crafty v19.10 SE - 2004 CCT Champion [Fischer] (2
cpus)
Krafty Personality == Fischer (29)

SE code enabled

White(1):
White(1): 8/7p/8/4pp1k/8/r6P/P5R1/6K1 b - - 0 41
Black(1): st 999999
search time set to 999999.00.
Black(1): go
end-game phase
              clearing hash tables
              time surplus   0.00  time limit 16666:39 (16666:39)/(50)
              time surplus   0.00  time limit 16666:39 (16666:39)/(50)
              depth   time  score   variation (1)
starting thread 1
                3->   0.00  -2.92   1. ... Rxh3 2. Rg7 h6
                4     0.00  -2.62   1. ... Rxh3 2. Rg7 h6 3. Kf2
                4     0.02  -2.95   1. ... Kh4 2. Rd2 e4 3. Kf2 Kxh3
                4->   0.02  -2.95   1. ... Kh4 2. Rd2 e4 3. Kf2 Kxh3
                5     0.02  -2.87   1. ... Kh4 2. Rg7 Rg3+ 3. Rxg3 Kxg3
                                    4. a4 Kxh3
                5     0.03  -2.95   1. ... Rxh3 2. Rg7 h6 3. Kg2 Rd3
                5->   0.03  -2.95   1. ... Rxh3 2. Rg7 h6 3. Kg2 Rd3 (s=2)
                6     0.03  -2.69   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4
                6     0.05  -3.02   1. ... Kh4 2. Kf1 e4 3. Rd2 e3 4. Rh2
                6->   0.07  -3.02   1. ... Kh4 2. Kf1 e4 3. Rd2 e3 4. Rh2
                7     0.08  -3.08   1. ... Kh4 2. Rd2 e4 3. Kg2 Rg3+ 4.
                                    Kf1 Kxh3 5. Rd7
                7->   0.08  -3.08   1. ... Kh4 2. Rd2 e4 3. Kg2 Rg3+ 4.
                                    Kf1 Kxh3 5. Rd7
                8     0.14  -3.11   1. ... Kh4 2. Rd2 e4 3. Rd5 Kg5 4.
                                    Rd2 Rxh3 5. Kf2
                8->   0.16  -3.11   1. ... Kh4 2. Rd2 e4 3. Rd5 Kg5 4.
                                    Rd2 Rxh3 5. Kf2
                9     0.39  -3.08   1. ... Kh4 2. Re2 e4 3. Rf2 Rg3+ 4.
                                    Kf1 Kxh3 5. a4 Kg4 6. a5 <HT>
                9     0.61  -3.27   1. ... Rxh3 2. Rg7 h6 3. a4 Ra3 4.
                                    Re7 e4 5. Re5 Kg4
                9->   0.63  -3.27   1. ... Rxh3 2. Rg7 h6 3. a4 Ra3 4.
                                    Re7 e4 5. Re5 Kg4 (s=2)
               10     0.94  -3.36   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    Re5 Kg4 5. a4 e3 6. a5
               10->   1.38  -3.36   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    Re5 Kg4 5. a4 e3 6. a5 (s=2)
               11     2.24  -3.69   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4 Ra3 5. Re5 Kg4 6. a5 e3
               11->   2.77  -3.69   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4 Ra3 5. Re5 Kg4 6. a5 e3
               12     4.36  -3.53   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4 Ra3 5. Re5 Kg4 6. a5 Kf4 7. Rd5
               12->   7.83  -3.53   1. ... Rxh3 2. Rg7 h6 3. Re7 e4 4.
                                    a4 Ra3 5. Re5 Kg4 6. a5 Kf4 7. Rd5
                                    (s=4)
               13    12.38     --   1. ... Rxh3
               13    12.74   0.95   1. ... Rxh3 2. Rh2 Rxh2 3. Kxh2 e4
                                    4. a4 f4 5. a5 Kg4 6. a6 e3 7. Kg2
                                    f3+ 8. Kf1 e2+ 9. Kf2 h5 10. a7 e1=R
                                    11. a8=Q <HT> (s=3)
               13    23.38  -3.60   1. ... Kh4 2. Rg7 h6 3. Rh7 Ra6 4.
                                    Re7 e4 5. Rf7 Rxa2 6. Rxf5 Kg3 7. Kf1
                                    e3 (s=2)
               13->  29.49  -3.60   1. ... Kh4 2. Rg7 h6 3. Rh7 Ra6 4.
                                    Re7 e4 5. Rf7 Rxa2 6. Rxf5 Kg3 7. Kf1
                                    e3
               14    45.52  -3.53   1. ... Kh4 2. Re2 e4 3. Rf2 Kxh3 4.
                                    Rxf5 Rxa2 5. Re5 Kg3 6. Rg5+ Kf4 7.
                                    Rh5 Ra7 8. Rh4+ Kf3 9. Kh2
?              14    53.50   9/18*  1. ... h6
Black(0): ?
              time=54.32  cpu=112%  mat=-1  n=42493214  fh=89%  nps=782K
              ext-> chk=2240906 cap=44859 pp=915089 1rep=85828 mate=13203
              predicted=0  nodes=42493214  evals=19864801
              endgame tablebase-> probes=15407  hits=15407
              SMP->  split=889  stop=88  data=5/128  cpu=1:01  elap=54.32

Black(1): Kh4
              time used:  54.32



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