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Subject: Re: Crafty move in endgame

Author: Anthony Boynes

Date: 06:13:28 03/09/02

Go up one level in this thread


After letting it run longer, Crafty finally switches away from Bxe3:

end-game phase
              clearing hash tables
              time limit 15.00 (1:45)
         nss  depth   time  score   variation (1)
                7     0.15     --   1. ... Nc2
                7     0.18   5.14   1. ... Nc2 2. Re4 Bg7 3. Rc4+ Kd5 4.
                                    Rxc2 Ke4 5. Kf2
                7     0.32   3.95   1. ... Kb7 2. g7 Bxg7 3. Re7+ Kc6 4.
                                    Rxg7 Kd6 5. Kf2 Nc2
                7     0.37   3.50   1. ... Kb5 2. Re7 Bc5 3. g7 Bxe7 4.
                                    g8=Q Kc5 5. Ke2
                7     0.39   3.30   1. ... Kc5 2. Re7 Kd6 3. g7 Kxe7 4.
                                    g8=Q Bb2 5. Kf2
                7->   0.43   3.30   1. ... Kc5 2. Re7 Kd6 3. g7 Kxe7 4.
                                    g8=Q Bb2 5. Kf2
                8     0.48   3.35   1. ... Kc5 2. Re7 Kd6 3. g7 Kxe7 4.
                                    g8=Q Bb2 5. Qh7+ Kd6 6. Kf2
                8->   0.63   3.35   1. ... Kc5 2. Re7 Kd6 3. g7 Kxe7 4.
                                    g8=Q Bb2 5. Qh7+ Kd6 6. Kf2
                9     0.66   3.35   1. ... Kc5 2. Re7 Kd6 3. g7 Kxe7 4.
                                    g8=Q Bb2 5. Qh7+ Kd6 6. Kf2 Bc3
                9->   0.78   3.35   1. ... Kc5 2. Re7 Kd6 3. g7 Kxe7 4.
                                    g8=Q Bb2 5. Qh7+ Kd6 6. Kf2 Bc3
               10     0.92     --   1. ... Kc5
               10     1.86   3.80   1. ... Kc5 2. Re7 Kd6 3. Rh7 Ke6 4.
                                    Rb7 Nc2 5. g7 Bxg7 6. Rxg7 Nb4
               10     2.54   3.55   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Ke5 5. Ke2 Ke4 6. Qc8 Kd5 7. Kd3
               10->   2.80   3.55   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Ke5 5. Ke2 Ke4 6. Qc8 Kd5 7. Kd3
               11     2.98   3.65   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Ke2 Bf6 5. Kd3 Be5 6. Qb8+ Kd5 7. Qa8+
                                    Kc5 8. Ke4
               11->   3.80   3.65   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Ke2 Bf6 5. Kd3 Be5 6. Qb8+ Kd5 7. Qa8+
                                    Kc5 8. Ke4
               12     4.07   3.65   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Ke2 Bf6 5. Kd3 Be5 6. Qb8+ Kd5 7. Qa8+
                                    Kc5 8. Ke4 Kd6
               12->   5.16   3.65   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Ke2 Bf6 5. Kd3 Be5 6. Qb8+ Kd5 7. Qa8+
                                    Kc5 8. Ke4 Kd6
               13     6.21   3.65   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Ke2 Bf6 5. Kd3 Ke5 6. Qb8+ Kd5 7. Qf8
                                    Ke5 8. Qc5+ Ke6 9. Ke4 <HT>
               13->   7.95   3.65   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Ke2 Bf6 5. Kd3 Ke5 6. Qb8+ Kd5 7. Qf8
                                    Ke5 8. Qc5+ Ke6 9. Ke4 <HT>
               14     9.57   3.75   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Ke5 5. Ke2 Ke4 6. Qa8+ Kf5 7.
                                    Kd3 Be5 8. Qc8+ Kf4 9. Qf8+ Kg4 10.
                                    Ke4 Bb2
               14->  14.42   3.75   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Ke5 5. Ke2 Ke4 6. Qa8+ Kf5 7.
                                    Kd3 Be5 8. Qc8+ Kf4 9. Qf8+ Kg4 10.
                                    Ke4 Bb2
               15    17.32   3.75   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Ke5 5. Ke2 Ke4 6. Qa8+ Kf5 7.
                                    Kd3 Bf6 8. Qe4+ Kg5 9. Qd5+ Kf4 10.
                                    Qe6 Kg5 11. Ke4 Nc2
               15->  22.51   3.75   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Ke5 5. Ke2 Ke4 6. Qa8+ Kf5 7.
                                    Kd3 Bf6 8. Qe4+ Kg5 9. Qd5+ Kf4 10.
                                    Qe6 Kg5 11. Ke4 Nc2
               16    33.37   4.08   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Kc5 5. Ke2 Nb3 6. Kd3 Kb4 7. Qc8
                                    Be5 8. Qb7+ Ka4 9. Qc6+ Ka3 10. Qe8
                                    Nc5+ 11. Kc4 Bd6
               16->  54.07   4.08   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Kc5 5. Ke2 Nb3 6. Kd3 Kb4 7. Qc8
                                    Be5 8. Qb7+ Ka4 9. Qc6+ Ka3 10. Qe8
                                    Nc5+ 11. Kc4 Bd6
               17     1:09   4.11   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Kc5 5. Ke2 Kc4 6. Qc8+ Kb3 7.
                                    Kd3 Bb2 8. Qa6 Ba3 9. Qc4+ Kb2 10.
                                    Qd5 Kb1 11. Qg2 Kc1 12. Qd2+ Kb1
               17->   1:34   4.11   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qd8+ Kc5 5. Ke2 Kc4 6. Qc8+ Kb3 7.
                                    Kd3 Bb2 8. Qa6 Ba3 9. Qc4+ Kb2 10.
                                    Qd5 Kb1 11. Qg2 Kc1 12. Qd2+ Kb1
               18     2:02     --   1. ... Bxe3
               18     3:57   6.55   1. ... Bxe3 2. g7 Bd4 3. g8=Q Kd6 4.
                                    Qf8+ Kd5 5. Qf7+ Ke4 6. Ke2 Be5 7.
                                    Qg6+ Kd4 8. Qf5 Kd5 9. Kd3 Nc2 10.
                                    Kxc2 Kd6 11. Kd3 Kd5 12. Qf8
               18    17:08   4.25   1. ... Kc5 2. Ke2 Nc2 3. Re7 Nb4 4.
                                    g7 Bxg7 5. Rxg7 Kb5 6. Rg8 Nd5 7. Rh8
                                    Kc4 8. Rh4+ Kb5 9. Kd3 Kc5 10. Rh5
                                    Kd6 11. Kc4
end            18    17:34   5/20?  1. ... Bc5
Black(0): end
execution complete.



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