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Subject: Mate-in-18

Author: Mike Byrne

Date: 21:41:51 08/27/05

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On August 28, 2005 at 00:25:41, Roy Brunjes wrote:

>Mike,
>
>Any estimate of when this might be available? Also, since crafty runs on Linux -
>any chance that we might see a Linux version of this also?
>
>Thanks for all the effort you have already put into Crafty Classic!
>
>Roy

4 to 8 weeks - source will be released so  one could make a linux version

a recent post on CCC was this mate-in-18 - Crafty Classic 2005 solves it in a
reasonable time frame.

White(2): [d]3b3K/pp4rP/8/4Ppp1/8/BB4P1/p3p2p/1N5k w - - 0 1
White(1): g
              clearing hash tables
              time surplus   0.00  time limit 10:00 (10:00)
              depth   time  score   variation (1)
                1     0.00  -2.93   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 a1=Q 5. h8=Q Kxd2 6. Qxh2 Qxe5+
                1->   0.00  -2.93   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 a1=Q 5. h8=Q Kxd2 6. Qxh2 Qxe5+
                2     0.00  -2.93   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 a1=Q 5. h8=Q Kxd2 6. Qxh2 Qxe5+
                2->   0.02  -2.93   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 a1=Q 5. h8=Q Kxd2 6. Qxh2 Qxe5+
                3     0.02  -2.93   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 a1=Q 5. h8=Q Kxd2 6. Qxh2 Qxe5+
                3->   0.03  -2.93   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 a1=Q 5. h8=Q Kxd2 6. Qxh2 Qxe5+
                4     0.03     +1   1. Bd5+!!
                4     0.03  -1.94   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Kd1
                4->   0.05  -1.94   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Kd1
                5     0.05     +1   1. Bd5+!!
                5     0.06  -1.16   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Kd3 6. Bxa2 h1=Q
                                    7. h8=Q Qxh8+ 8. Kxh8
                5->   0.08  -1.16   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Kd3 6. Bxa2 h1=Q
                                    7. h8=Q Qxh8+ 8. Kxh8
                6     0.10  -1.16   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Kd3 6. Bxa2 h1=Q
                                    7. h8=Q Qxh8+ 8. Kxh8
                6->   0.10  -1.16   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Kd3 6. Bxa2 h1=Q
                                    7. h8=Q Qxh8+ 8. Kxh8
                7     0.13  -1.16   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Kd3 6. Bxa2 h1=Q
                                    7. h8=Q Qxh8+ 8. Kxh8
                7->   0.14  -1.16   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Kd3 6. Bxa2 h1=Q
                                    7. h8=Q Qxh8+ 8. Kxh8
                8     0.19     -1   1. Bd5+
                8     0.27  -1.97   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Ke3 6. h8=Q a1=Q
                                    7. Qxd8 Qxe5+ 8. Kg6
                8->   0.28  -1.97   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Kxg7 Kxd2 5. Bb4+ Ke3 6. h8=Q a1=Q
                                    7. Qxd8 Qxe5+ 8. Kg6
                9     0.49     +1   1. Bd5+!!
                9     0.55     +3   1. Bd5+!!
                9     0.60   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
                9->   0.60   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               10     0.81   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               10->   0.83   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               11     1.39   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               11->   1.42   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               12     3.08   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               12->   3.14   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               13     7.67   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               13->   7.78   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               14    18.94   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               14->  19.94   0.01   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Kg8
               15    32.85     +1   1. Bd5+!!
               15    44.78     +3   1. Bd5+!!
               15     1:02     +M   1. Bd5+!!
               15     4:31  Mat18   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Ke8 Rh8+ 12. Kd7 Rh7+
                                    13. Kxd8 Rh8+ 14. Kc7 Rh7+ 15. Kb8
                                    Rh8+ 16. Kxa7 Ra8+ 17. Kxa8 e1=Q 18.
                                    Nb3#
               15->   4:31  Mat18   1. Bd5+ Kg1 2. Bc5+ Kf1 3. Nd2+ Ke1
                                    4. Nf3+ Kd1 5. Bb3+ Kc1 6. Ba3+ Kb1
                                    7. Nd2+ Ka1 8. Bc2 Rxh7+ 9. Kg8 Rh8+
                                    10. Kf7 Rh7+ 11. Ke8 Rh8+ 12. Kd7 Rh7+
                                    13. Kxd8 Rh8+ 14. Kc7 Rh7+ 15. Kb8
                                    Rh8+ 16. Kxa7 Ra8+ 17. Kxa8 e1=Q 18.
                                    Nb3#
?              16     5:30   1/21*  1. Bd5+
White(1): ?
              time=5:34  mat=-3  n=1429792358  fh=94%  nps=4.28M
              ext-> chk=111205378 cap=1227193 1rep=12576892 mate=690682
              predicted=0  nodes=1429792358  evals=71304826  50move=0
              endgame tablebase-> probes=0  hits=0
              SMP->  split=2705  stop=444  data=8/64  elap=5:34

mate in 18 moves.


White(1): Bd5+
              time used:   5:34




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