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Subject: Re: Is this move really the best?

Author: Dann Corbit

Date: 10:53:02 05/03/00

Go up one level in this thread


It takes Crafty 17.10 a whale of a long time to find the fail-low.  Long-time
Crafty analysis:

pondering enabled.
EGTB cache memory = 6M bytes.
hash table memory = 24M bytes.
pawn hash table memory = 8M bytes.
play best book line after search.
EGTB access enabled
using tbpath=./TB
4 piece tablebase files found
1302kb of RAM used for TB indices and decompression tables
PFGA: EPD record: 1
              clearing hash tables
              time surplus   0.00  time limit 500:00 (500:00)
         nss  depth   time  score   variation (1)
White(1): exit

                5->   0.60  -0.36   1. Qh6 a6 2. Be2 Nc5 3. Qg7
                6     0.70  -0.39   1. Qh6 a6 2. Be2 Bf6 3. Rd1 Be5
                6->   1.68  -0.39   1. Qh6 a6 2. Be2 Bf6 3. Rd1 Be5
                7     2.16  -0.50   1. Qh6 a6 2. Bf1 Bf6 3. Rd1 e5 4. Nb3
                7     5.61  -0.25   1. Bh6 a6 2. Bf1 Bh4 3. Re4 Bg5 4.
                                    Rd1
                7     9.52  -0.19   1. Rxe6 fxe6 2. Nxe6 Qa5 3. Bxd7+ Kxd7
                                    4. Nec5+ Ke8 5. Qd7+ Kf7 6. Nxb7
                7->   9.72  -0.19   1. Rxe6 fxe6 2. Nxe6 Qa5 3. Bxd7+ Kxd7
                                    4. Nec5+ Ke8 5. Qd7+ Kf7 6. Nxb7
                8    11.33  -0.19   1. Rxe6 fxe6 2. Nxe6 Qa5 3. Bxd7+ Kxd7
                                    4. Nec5+ Ke8 5. Qd7+ Kf7 6. Nxb7 Rc7
                8->  13.85  -0.19   1. Rxe6 fxe6 2. Nxe6 Qa5 3. Bxd7+ Kxd7
                                    4. Nec5+ Ke8 5. Qd7+ Kf7 6. Nxb7 Rc7
                9    24.24     ++   1. Rxe6!!
                9    56.82   0.27   1. Rxe6 Rc7 2. Re2 O-O 3. Bh6 Re8 4.
                                    Rae1 a6 <HT>
                9->  59.69   0.27   1. Rxe6 Rc7 2. Re2 O-O 3. Bh6 Re8 4.
                                    Rae1 a6 <HT>
               10     1:25   0.35   1. Rxe6 Rc7 2. Re2 O-O 3. Bh6 Re8 4.
                                    Rc1 Rxc1+ 5. Bxc1 f5 6. Nc6 Qc7 7.
                                    Nxe7+ Rxe7 8. Rxe7 Nxe7
               10->   1:32   0.35   1. Rxe6 Rc7 2. Re2 O-O 3. Bh6 Re8 4.
                                    Rc1 Rxc1+ 5. Bxc1 f5 6. Nc6 Qc7 7.
                                    Nxe7+ Rxe7 8. Rxe7 Nxe7
               11     3:02   0.31   1. Rxe6 Rc7 2. Re2 a6 3. Bxd7+ Qxd7
                                    4. Qxd7+ Kxd7 5. Bh6 Rd8 6. Rd1 Kc8
                                    7. Re5 Kb8 8. f3
               11->   3:42   0.31   1. Rxe6 Rc7 2. Re2 a6 3. Bxd7+ Qxd7
                                    4. Qxd7+ Kxd7 5. Bh6 Rd8 6. Rd1 Kc8
                                    7. Re5 Kb8 8. f3
               12     8:34   0.15   1. Rxe6 Rc7 2. Re1 a6 3. Bd3 O-O 4.
                                    Bh6 Re8 5. Rad1 Bd6 6. Qf3 Rxe1+ 7.
                                    Rxe1 Qf6
               12->  11:23   0.15   1. Rxe6 Rc7 2. Re1 a6 3. Bd3 O-O 4.
                                    Bh6 Re8 5. Rad1 Bd6 6. Qf3 Rxe1+ 7.
                                    Rxe1 Qf6
               13    22:56   0.11   1. Rxe6 Rc7 2. Re1 a6 3. Bxd7+ Qxd7
                                    4. Qxd7+ Kxd7 5. Bh6 Re8 6. Re2 Bf6
                                    7. Rd2 Re4 8. Nf3 Ke8 9. Rad1
               13->  31:21   0.11   1. Rxe6 Rc7 2. Re1 a6 3. Bxd7+ Qxd7
                                    4. Qxd7+ Kxd7 5. Bh6 Re8 6. Re2 Bf6
                                    7. Rd2 Re4 8. Nf3 Ke8 9. Rad1
               14   104:10     --   1. Rxe6
               14   131:01  -0.44   1. Rxe6 fxe6 2. Nxe6 Qa5 3. Bxd7+ Kxd7
                                    4. Nec5+ Ke8 5. Qd7+ Kf7 6. Nxb7 Rc7
                                    7. Nd6+ Kg7 8. Qe6 Bxd6 9. Qxd6 Rhc8
                                    10. Bg5 Rc6 11. Qe5+ Kg8
               14   312:04  -0.22   1. Bh6 a6 2. Bf1 Qa5 3. b3 Bf6 4. Rad1
                                    Nc5 5. Nxc5 Qxc5 6. Nxe6 fxe6 7. Qxe6+
                                    Be7 8. Bxa6 Bxa6 9. Rxd5
              time=500:00  cpu=100%  mat=-1  n=2692178871  fh=5%  nps=89918
              ext-> checks=443214165 recaps=17922823 pawns=1404017 1rep=21853071
thrt:2163975
              predicted=0  nodes=2692178871  evals=1066973694
              endgame tablebase-> probes done=0  successful=0

Crafty v17.10

White(1): quit
execution complete.



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Last modified: Thu, 15 Apr 21 08:11:13 -0700

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