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Subject: Crafty 19.12 SE finds both solututions!

Author: Mike Byrne

Date: 15:52:49 04/23/04

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Crafty 19.12 sovles it both ways - depending on which personality you select!


==================================================================

Crafty v19.12 SE [Kasparov] (2 cpus)
SE code enabled

Black(1): [d]r1bq1r2/ppppkpQp/2n2N2/2b5/4P3/1P3N2/PBP3PP/R3KB1n w Q - bm Nxh7;
White(1): go
              time surplus   0.00  time limit 1666:39 (1666:39)/(30)
              time surplus   0.00  time limit 1666:39 (1666:39)/(30)
              depth   time  score   variation (1)
                2     0.00  -4.11   1. Nd5+ Kd6 2. O-O-O
                2->   0.01  -4.11   1. Nd5+ Kd6 2. O-O-O
                3     0.01     +1   1. Nd5+!!
                3     0.01  -3.66   1. Nd5+ Kd6 2. e5+ Ke6 3. O-O-O
                3     0.03  -3.62   1. h3 Nf2 2. Qxh7 Nxd3+ 3. cxd3
                3->   0.03  -3.62   1. Bd3 Nf2 2. Qxh7 Nxd3+ 3. cxd3
                4     0.04  -3.84   1. Bd3 Rb8 2. Nd5+ Kd6 3. O-O-O
                4     0.04     +1   1. Nd5+!!
                4     0.06     +3   1. Nd5+!!
                4     0.06     +M   1. Nd5+!!
                4     0.09   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7
                4->   0.10   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7
                5     0.10   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7
                5->   0.14   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=6)
                6     0.15   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=5)
                6->   0.26   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=7)
                7     0.31   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=6)
                7->   0.89   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=9)
                8     0.95   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=8)
                8->   2.68   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=12)
                9     3.03     +1   1. Nd5+!!
                9     3.71   1.29   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Qe8
                                    (s=11)
                9->  13.34   1.29   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Qe8
                                    (s=5)
               10    14.21   1.07   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Bf6
                                    7. Qd6+ Qe7 (s=4)
               10->  34.20   1.07   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Bf6
                                    7. Qd6+ Qe7 (s=11)
               11    57.70   1.05   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 f6 5. Nxc7+ Kf7 6. Qh5+ Kg7
                                    7. Qg4+ Kh8 8. Nxa8 Qe8 (s=10)
               11     4:10   1.07   1. Bc4 b5 2. Nxh7 Ke8 3. Bf6 Be7 4.
                                    Bxf7+ Rxf7 5. Qg8+ Rf8 6. Nxf8 Bb4+
                                    7. c3 Ne7 8. Qg7 (s=8)
               11->   6:26   1.07   1. Bc4 b5 2. Nxh7 Ke8 3. Bf6 Be7 4.
                                    Bxf7+ Rxf7 5. Qg8+ Rf8 6. Nxf8 Bb4+
                                    7. c3 Ne7 8. Qg7 (s=2)
               12     8:10     +1   1. Bc4!!
               12    13:27   2.12   1. Bc4 b5 2. Nxh7 Bb4+ 3. Ke2 Ke8 4.
                                    Bd5 Ng3+ 5. hxg3 Qe7 6. Bf6 Qc5 7.
                                    Kd3 Ba6 8. Nxf8 Qxf8
?
White(1): ?
              time=15:53  cpu=189%  mat=-5  n=865876063  fh=92%  nps=908K
              ext-> chk=52702545 cap=2558350 pp=137873 1rep=4108309 mate=127110
              predicted=0  nodes=865876063  evals=214212769  50move=0
              endgame tablebase-> probes=0  hits=0
              SMP->  split=1600  stop=298  data=5/128  cpu=30:01  elap=15:53

===============================================================================
Black(1): kra stand
Black(1): new

Crafty v19.12 SE [Standard] (2 cpus)
SE code disabled

White(1): r1bq1r2/ppppkpQp/2n2N2/2b5/4P3/1P3N2/PBP3PP/R3KB1n w Q - bm Nxh7;
White(1): go
              clearing hash tables
              time surplus   0.00  time limit 1666:39 (1666:39)
              depth   time  score   variation (1)
                2     0.07  -4.36   1. Nd5+ Kd6 2. O-O-O
                2->   0.08  -4.36   1. Nd5+ Kd6 2. O-O-O
                3     0.08  -4.22   1. Nd5+ Kd6 2. e5+ Kxd5 3. Bc4+ Ke4
                                    4. Qxh7+ Kf4 5. Bxf7
                3->   0.10  -4.22   1. Nd5+ Kd6 2. e5+ Kxd5 3. Bc4+ Ke4
                                    4. Qxh7+ Kf4 5. Bxf7 (s=2)
                4     0.11     +1   1. Nd5+!!
                4     0.11     +3   1. Nd5+!!
                4     0.11     +M   1. Nd5+!!
                4     0.14   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7
                4->   0.16   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7
                5     0.16   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7
                5->   0.18   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=4)
                6     0.19   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=3)
                6->   0.32   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=10)
                7     0.35   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=9)
                7->   1.02   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=10)
                8     1.10   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=9)
                8->   2.35   0.00   1. Nd5+ Ke8 2. Nf6+ Ke7 (s=11)
                9     2.63     +1   1. Nd5+!!
                9     3.43   1.08   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Qe8
                                    (s=10)
                9->  14.24   1.08   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Qe8
                                    (s=6)
               10    15.02   0.87   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Bf6
                                    7. Qd6+ Qe7 (s=5)
               10->  28.72   0.87   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Bf6
                                    7. Qd6+ Qe7 (s=10)
               11    31.19   0.83   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 f6 5. Nxc7+ Kf7 6. Qh5+ Kg7
                                    7. Qg4+ Kh8 8. Nxa8 Qe8 (s=9)
               11->   2:43   0.83   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 f6 5. Nxc7+ Kf7 6. Qh5+ Kg7
                                    7. Qg4+ Kh8 8. Nxa8 Qe8 (s=9)
               12     2:53   0.86   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
                                    4. Qe5 f6 5. Nxc7+ Kf7 6. Qd5+ Kg7
                                    7. Nxa8 Bb4+ 8. Nd2 Bc3 9. O-O-O (s=8)
               12     4:41     +1   1. Nxh7!!
               12     5:44   1.54   1. Nxh7 Bb4+ 2. Nd2 Ke8 3. Nf6+ Ke7
                                    4. Nd5+ Ke8 5. Bf6 Ne7 6. Nxb4 a5 7.
                                    Nd5 Rg8 8. Qxg8+ Nxg8 9. Bxd8 Kxd8
                                    (s=6)
               12->  12:43   1.54   1. Nxh7 Bb4+ 2. Nd2 Ke8 3. Nf6+ Ke7
                                    4. Nd5+ Ke8 5. Bf6 Ne7 6. Nxb4 a5 7.
                                    Nd5 Rg8 8. Qxg8+ Nxg8 9. Bxd8 Kxd8
                                    (s=4)
?              13    13:45   1/50*  1. Nxh7
White(1): ?
              time=13:57  cpu=186%  mat=-5  n=836343451  fh=93%  nps=999K
              ext-> chk=59328263 cap=2344331 pp=151977 1rep=4324537 mate=133721
              predicted=0  nodes=836343451  evals=131373764  50move=0
              endgame tablebase-> probes=0  hits=0
              SMP->  split=2394  stop=402  data=7/128  cpu=26:00  elap=13:57

White(1): Nxh7
              time used:  13:57



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