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Subject: Crafty 19.10 SE "fischer" mate-in14 ...11 seconds

Author: Mike Byrne

Date: 19:42:47 02/01/04

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for some unknown reason (to me ) this postion generates one of the highest nps I
have ever seen on my machine -- this is with the "fischer" personality which has
the SE code enabled by default ....due to the zugswang nature ofthe position
many of the top programs will have a problem with this position, I added code in
crafty to avoid using null move when facing certain criteria - helps in this
postion - may hurt in others.

White(1): kraf fisch
  queen value..........................900
  rook value...........................500
  bishop value.........................300
  knight value.........................300
  pawn value...........................100
  personality setting..................29


dual 1.7 Ghz

White(1): Q7/8/1p1K4/1p6/2k5/8/1P6/4q3 w - -
White(1): st 999999
search time set to 999999.00.
White(1): sd 14
search depth set to 14.
White(1): move
end-game phase
              clearing hash tables
              time surplus   0.00  time limit 16666:39 (16666:39)/(50)
              time surplus   0.00  time limit 16666:39 (16666:39)/(50)
              depth   time  score   variation (1)
starting thread 1
                2->   0.00   0.00   1. Qa2+ Kb4 2. Qa3+ Kc4 3. Qa2+
                3     0.00   0.00   1. Qa2+ Kb4 2. Qa3+ Kc4 3. Qa2+
                3     0.01     ++   1. Qd5+!!
                3     0.01   7.81   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3
                3->   0.01   7.81   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3
                4     0.01   7.81   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3
                4->   0.03   7.81   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3
                5     0.03   7.98   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3 6. Qd4
                5->   0.04   7.98   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3 6. Qd4 (s=2)
                6     0.04     ++   1. Qd5+!!
                6     0.06   9.17   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3 6. Qd4 b4
                                    7. Qxb6
                6->   0.07   9.17   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3 6. Qd4 b4
                                    7. Qxb6
                7     0.12   9.17   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kc3 5. Qxc1+ Kxb3 6. Qc7 b4
                                    7. Qxb6
                7->   0.14   9.17   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kc3 5. Qxc1+ Kxb3 6. Qc7 b4
                                    7. Qxb6
                8     0.17   9.49   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kc3 5. Qxc1+ Kxb3 6. Kc6 Ka4
                                    7. Qa1+ Kb3 8. Qb1+ Kc3 9. Qxb5
                8->   0.20   9.49   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kc3 5. Qxc1+ Kxb3 6. Kc6 Ka4
                                    7. Qa1+ Kb3 8. Qb1+ Kc3 9. Qxb5
                9     0.26   9.70   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kc3 5. Qxc1+ Kxb3 6. Kc6 b4
                                    7. Kb5 Ka2 8. Kxb4
                9->   0.31   9.70   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kc3 5. Qxc1+ Kxb3 6. Kc6 b4
                                    7. Kb5 Ka2 8. Kxb4
               10     0.32     ++   1. Qd5+!!
               10     1.84  10.70   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3 6. Qb1+ Kc4
                                    7. Kc6 Kd4 8. Qxb5 Ke3 9. Kxb6
               10->   1.90  10.70   1. Qd5+ Kb4 2. Qd3 Qa1 3. Qc3+ Ka4
                                    4. b3+ Ka3 5. Qxa1+ Kxb3 6. Qb1+ Kc4
                                    7. Kc6 Kd4 8. Qxb5 Ke3 9. Kxb6
               11     1.95     ++   1. Qd5+!!
               11     3.43  11.80   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kd3 5. Qxc1 b4 6. Qc4+ Kd2 7.
                                    Qxb4+ Kc2 8. Qc4+ Kb2 9. Kc6 Ka3 10.
                                    Kxb6
               11->   3.64  11.80   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kd3 5. Qxc1 b4 6. Qc4+ Kd2 7.
                                    Qxb4+ Kc2 8. Qc4+ Kb2 9. Kc6 Ka3 10.
                                    Kxb6
               12     4.22  12.12   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kd3 5. Qxc1 b4 6. Qc4+ Kd2 7.
                                    Qxb4+ Kc2 8. Qxb6 Kd3 9. b4 Ke4 10.
                                    Qf2
               12->   4.73  12.12   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kd3 5. Qxc1 b4 6. Qc4+ Kd2 7.
                                    Qxb4+ Kc2 8. Qxb6 Kd3 9. b4 Ke4 10.
                                    Qf2 (s=2)
               13     5.09     ++   1. Qd5+!!
               13     6.36  17.02   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kd3 5. Qxc1 b4 6. Qc4+ Ke3 7.
                                    Qxb4 b5 8. Qxb5 Kf3 9. Qf5+ Ke3 10.
                                    Kd5 Kd2
               13->   7.09  17.02   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kd3 5. Qxc1 b4 6. Qc4+ Ke3 7.
                                    Qxb4 b5 8. Qxb5 Kf3 9. Qf5+ Ke3 10.
                                    Kd5 Kd2 (s=2)
               14     7.37     ++   1. Qd5+!!
               14    10.39  Mat14   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kd3 5. Qxc1 b4 6. Qc4+ Ke3 7.
                                    Qxb4 <EGTB>
               14->  11.11  Mat14   1. Qd5+ Kb4 2. Qd3 Qc1 3. Qa3+ Kc4
                                    4. b3+ Kd3 5. Qxc1 b4 6. Qc4+ Ke3 7.
                                    Qxb4 <EGTB>
              time=11.11  cpu=186%  mat=-1  n=18661182  fh=99%  nps=1.68M
              ext-> chk=2858849 cap=3269 pp=282001 1rep=52269 mate=1011
              predicted=0  nodes=18661182  evals=4656467
              endgame tablebase-> probes=4880  hits=4880
              SMP->  split=1043  stop=59  data=5/128  cpu=20.75  elap=11.11

mate in 14 moves.


White(1): Qd5+
              time used:  11.11



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

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