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Subject: Re: Testposition (endgame pawns vs. bishop)

Author: Mike Byrne

Date: 18:24:49 08/26/02

Go up one level in this thread


sorry for the double post left out prgram and hardware -

Program:  Crafty 17.16 SE
Processors; Dual Xeon 1.7 Ghz


Bc6 at 2.07 seconds, on the 21 first ply it starts to fails low which it is now
trying to resolve
===============================================================================
White(1):[D] 8/4k3/1P3pP1/3b1P1p/7P/3K4/8/8 b - - 0 1
Black(1): st 60000
search time set to 60000.00.
Black(1): go
end-game phase
              clearing hash tables
              time surplus   0.00  time limit 1000:00 (1000:00)
         nss  depth   time  score   variation (1)
starting thread 1
                2->   0.01  -2.09   1. ... Kf8 2. Kd4 Bb7
                3     0.03  -2.04   1. ... Kf8 2. Kd4 Bb7 3. Kc5
                3->   0.03  -2.04   1. ... Kf8 2. Kd4 Bb7 3. Kc5
                4     0.03     ++   1. ... Kf8!!
                4     0.03  -1.52   1. ... Kf8 2. Ke3 Bb7 3. Kd4 Kg7
                4->   0.04  -1.52   1. ... Kf8 2. Ke3 Bb7 3. Kd4 Kg7
                5     0.04  -1.47   1. ... Kf8 2. Ke3 Bb7 3. Kd4 Kg7 4.
                                    Kc5
                5     0.04     ++   1. ... Kd6!!
                5     0.06  -0.98   1. ... Kd6 2. Kd4 Bg8 3. Ke4 Kc6 4.
                                    Kf4 Kxb6
                5->   0.06  -0.98   1. ... Kd6 2. Kd4 Bg8 3. Ke4 Kc6 4.
                                    Kf4 Kxb6
                6     0.06  -1.08   1. ... Kd6 2. Kd4 Bg8 3. b7 Kc7 4.
                                    b8=Q+ Kxb8 5. Ke4
         (2)    6->   0.07  -1.08   1. ... Kd6 2. Kd4 Bg8 3. b7 Kc7 4.
                                    b8=Q+ Kxb8 5. Ke4
                7     0.09  -0.98   1. ... Kd6 2. Kd4 Bg8 3. Ke3 Kc6 4.
                                    b7 Kxb7 5. Kf4
                7     0.11  -0.76   1. ... Kd7 2. Kd4 Kd6 3. Ke3 Kc5 4.
                                    g7 Kxb6 5. Kf4
         (3)    7->   0.12  -0.76   1. ... Kd7 2. Kd4 Kd6 3. Ke3 Kc5 4.
                                    g7 Kxb6 5. Kf4
         (2)    8     0.12  -0.52   1. ... Kd7 2. Kd4 Kd6 3. Ke3 Kc6 4.
                                    b7 Kxb7 5. g7 Bg8 6. Kf4
                8->   0.15  -0.52   1. ... Kd7 2. Kd4 Kd6 3. Ke3 Kc6 4.
                                    b7 Kxb7 5. g7 Bg8 6. Kf4
                9     0.18  -0.52   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Kf4
                9->   0.22  -0.52   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Kf4
               10     0.25  -0.32   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Kf4 Kc5
         (4)   10->   0.29  -0.32   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Kf4 Kc5
         (3)   11     0.32  -0.32   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Kg3 Kc5 7. Kf4
         (3)   11->   0.42  -0.32   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Kg3 Kc5 7. Kf4
         (2)   12     0.54  -0.12   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Kg3 Kc5 7. Kf4
                                    Kd4
         (2)   12->   0.68  -0.12   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Kg3 Kc5 7. Kf4
                                    Kd4
               13     0.75  -0.12   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Ke4 Kc5 7. Ke3
                                    Kd6 8. Kf4
         (4)   13->   0.97  -0.12   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Ke4 Kc5 7. Ke3
                                    Kd6 8. Kf4
         (3)   14     1.11  -0.04   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Ke4 Kc6 7. Ke3
                                    Kc5 8. Kf3 Kd4
         (2)   14->   1.40  -0.04   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    Ke4 Kc6 5. Kf3 Kxb6 6. Ke4 Kc6 7. Ke3
                                    Kc5 8. Kf3 Kd4
               15     1.57     --   1. ... Kd7
               15     1.67  -2.05   1. ... Kd7 2. Kd4 Kd6 3. g7 Bg8 4.
                                    b7 Kc7 5. Kc5 Kxb7 6. Kd6 Kc8 7. Ke7
                                    Kc7 8. Kxf6 Kd6 9. Kg5 Ke5
               15     2.07     ++   1. ... Bc6!!
               15     2.72  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kc3
                                    Bc8 8. Kc4 Kf8 9. Kd5 Bxf5
               15->   2.95  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kc3
                                    Bc8 8. Kc4 Kf8 9. Kd5 Bxf5
               16     3.31  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kc3
                                    Bc8 8. Kc4 Kf8 9. Kd5 Bxf5
               16->   3.62  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kc3
                                    Bc8 8. Kc4 Kf8 9. Kd5 Bxf5
               17     4.07  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kc3
                                    Kf8 8. Kd4 Bc6 9. Kc5 Be4 10. Kd6 Bxf5
               17->   4.61  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kc3
                                    Kf8 8. Kd4 Bc6 9. Kc5 Be4 10. Kd6 Bxf5
               18     6.89  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kc3
                                    Kf8 8. Kd4 Bc6 9. Kc5 Be4 10. Kd6 Bxf5
               18->   7.50  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kc3
                                    Kf8 8. Kd4 Bc6 9. Kc5 Be4 10. Kd6 Bxf5
               19     8.36  -1.43   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kb5
                                    Kf8 8. Kc5 Ke7 9. Kc4 Bf3 10. Kb3 <HT>
         (2)   19->  10.98  -1.43   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kb5
                                    Kf8 8. Kc5 Ke7 9. Kc4 Bf3 10. Kb3 <HT>
               20    15.04  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kb5
                                    Kf8 8. Kc5 Ke7 9. Kb4 Kf8 10. Kc4 Bc8
                                    11. Kd5 Bxf5
         (2)   20->  27.42  -1.40   1. ... Bc6 2. Kd4 Bg2 3. Kc5 Bh1 4.
                                    Kb5 Bb7 5. Ka5 Kf8 6. Kb4 Ke7 7. Kb5
                                    Kf8 8. Kc5 Ke7 9. Kb4 Kf8 10. Kc4 Bc8
                                    11. Kd5 Bxf5
               21    28.48     --   1. ... Bc6
               21     2:51   1/18*  1. ... Bc6



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