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Subject: Crafty 0.06 seconds!

Author: Mike Byrne

Date: 17:07:56 06/05/05

Go up one level in this thread


On June 05, 2005 at 12:53:45, Eduard Nemeth wrote:

>[D]6n1/3p4/8/1P1Pk1n1/4P3/B5K1/8/8 w - -
>
>b6! wins easy, but S9 cannot find it!!!

Crafty v19.20 (2 cpus)

White(1): 6n1/3p4/8/1P1Pk1n1/4P3/B5K1/8/8 w - -
White(1): st 600
search time set to 600.00.
White(1): g
              clearing hash tables
              time surplus   0.00  time limit 10:00 (10:00)
              depth   time  score   variation (1)
starting thread 1
                7     0.06     +1   1. b6!!
                7     0.08     +3   1. b6!!
                7     0.08   1.75   1. b6 Nxe4+ 2. Kh4 Nh6 3. b7 Nf5+ 4.
                                    Kg4 Nf2+ 5. Kf3 Nd4+ 6. Kxf2
                7->   0.11   1.75   1. b6 Nxe4+ 2. Kh4 Nh6 3. b7 Nf5+ 4.
                                    Kg4 Nf2+ 5. Kf3 Nd4+ 6. Kxf2 (s=2)
                8     0.11     +1   1. b6!!
                8     0.12     +3   1. b6!!
                8     0.14   4.08   1. b6 Nxe4+ 2. Kh4 Nh6 3. b7 Nf5+ 4.
                                    Kh5 Kxd5 5. b8=Q Nfg3+ 6. Kg6 Ne2 <HT>
                8->   0.14   4.08   1. b6 Nxe4+ 2. Kh4 Nh6 3. b7 Nf5+ 4.
                                    Kh5 Kxd5 5. b8=Q Nfg3+ 6. Kg6 Ne2 <HT>
                9     0.19   4.27   1. b6 Nxe4+ 2. Kh4 Nh6 3. b7 Nf5+ 4.
                                    Kh3 Kxd5 5. b8=Q d6 6. Qb5+ Ke6 7.
                                    Qe8+ Kd5
                9->   0.23   4.27   1. b6 Nxe4+ 2. Kh4 Nh6 3. b7 Nf5+ 4.
                                    Kh3 Kxd5 5. b8=Q d6 6. Qb5+ Ke6 7.
                                    Qe8+ Kd5 (s=2)
               10     0.37   4.60   1. b6 Nxe4+ 2. Kh4 Kxd5 3. b7 Ngf6
                                    4. b8=Q Ke6 5. Qc8 Ke5 6. Bb2+ Kd5
                                    7. Bxf6 Nxf6
               10->   0.44   4.60   1. b6 Nxe4+ 2. Kh4 Kxd5 3. b7 Ngf6
                                    4. b8=Q Ke6 5. Qc8 Ke5 6. Bb2+ Kd5
                                    7. Bxf6 Nxf6
               11     0.78   4.72   1. b6 Nxe4+ 2. Kh4 Kxd5 3. b7 Ngf6
                                    4. b8=Q Ke6 5. Qc8 Nd2 6. Kh3 Nde4
                                    7. Bc5
               11->   0.97   4.72   1. b6 Nxe4+ 2. Kh4 Kxd5 3. b7 Ngf6
                                    4. b8=Q Ke6 5. Qc8 Nd2 6. Kh3 Nde4
                                    7. Bc5 (s=2)
               12     1.78   4.77   1. b6 Nxe4+ 2. Kh4 Kxd5 3. b7 Ngf6
                                    4. b8=Q Ke6 5. Bb2 d6 6. Qf8 d5 7.
                                    Bd4 Nd7
               12->   2.25   4.77   1. b6 Nxe4+ 2. Kh4 Kxd5 3. b7 Ngf6
                                    4. b8=Q Ke6 5. Bb2 d6 6. Qf8 d5 7.
                                    Bd4 Nd7 (s=2)
               13     4.94   4.87   1. b6 Nxe4+ 2. Kh4 Kxd5 3. b7 Ngf6
                                    4. b8=Q Ke6 5. Bb2 d6 6. Qc8+ Kf7 7.
                                    Qf5 d5 8. Bxf6 Nxf6 9. Kg3
               13->   6.20   4.87   1. b6 Nxe4+ 2. Kh4 Kxd5 3. b7 Ngf6
                                    4. b8=Q Ke6 5. Bb2 d6 6. Qc8+ Kf7 7.
                                    Qf5 d5 8. Bxf6 Nxf6 9. Kg3
               14    13.51   4.96   1. b6 Nxe4+ 2. Kh4 Nd6 3. Bxd6+ Kxd6
                                    4. Kg5 Kc5 5. b7 Ne7 6. b8=Q Nxd5 7.
                                    Qc8+ Kd6 8. Qd8 Kc6 9. Kf5 d6 10. Ke6
               14->  16.91   4.96   1. b6 Nxe4+ 2. Kh4 Nd6 3. Bxd6+ Kxd6
                                    4. Kg5 Kc5 5. b7 Ne7 6. b8=Q Nxd5 7.
                                    Qc8+ Kd6 8. Qd8 Kc6 9. Kf5 d6 10. Ke6
               15    27.67   5.08   1. b6 Nxe4+ 2. Kh4 Nd6 3. Bxd6+ Kxd6
                                    4. Kg5 Kc5 5. b7 Ne7 6. b8=Q Nxd5 7.
                                    Qa7+ Kc6 8. Qa4+ Kc7 9. Kf5 Kd6 10.
                                    Qd4 Kc6 11. Ke4
               15->  39.33   5.08   1. b6 Nxe4+ 2. Kh4 Nd6 3. Bxd6+ Kxd6
                                    4. Kg5 Kc5 5. b7 Ne7 6. b8=Q Nxd5 7.
                                    Qa7+ Kc6 8. Qa4+ Kc7 9. Kf5 Kd6 10.
                                    Qd4 Kc6 11. Ke4 (s=2)
?              16    39.33   1/14*  1. b6
White(1): ?
              time=41.19  cpu=185%  mat=-1  n=157638601  fh=95%  nps=3.83M
              ext-> chk=12771962 cap=231094 pp=2209274 1rep=165810 mate=0
              predicted=0  nodes=157638601  evals=76157020  50move=0
              endgame tablebase-> probes=239444  hits=42
              SMP->  split=2284  stop=176  data=8/64  cpu=1:16  elap=41.19

White(1): b6
              time used:  41.19
Black(1):



























































































































































































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