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Subject: Re: Test Position

Author: Mike Byrne

Date: 20:08:58 01/14/04

Go up one level in this thread


On January 14, 2004 at 22:49:14, Chesster Fritz wrote:

>On January 14, 2004 at 22:42:57, Mike Byrne wrote:
>
>>source: http://f50.parsimony.net/forum202220/messages/4059.htm
>>
>>
>>Crafty 19.08 SE "fischer"
>>
>>Black(1): [d]8/2pp2pp/8/2PP1P2/1p5k/8/PP4p1/6K1 w - - 0 1
>>White(1): move
>>end-game phase
>>              clearing hash tables
>>crafty is behind  2.0 on time, reducing by 1/6.
>>              time surplus   0.00  time limit 1666:39 (1666:39)
>>crafty is behind  2.0 on time, reducing by 1/6.
>>              time surplus   0.00  time limit 1666:39 (1666:39)
>>              depth   time  score   variation (1)
>>                3     0.02     --   1. a4
>>                3     0.02   2.69   1. a4 bxa3 2. bxa3 Kg4 3. a4 Kxf5
>>                3->   0.02   2.69   1. a4 bxa3 2. bxa3 Kg4 3. a4 Kxf5
>>                4     0.02   2.69   1. a4 bxa3 2. bxa3 Kg4 3. a4 Kxf5
>>                4->   0.02   2.69   1. a4 bxa3 2. bxa3 Kg4 3. a4 Kxf5
>>                5     0.02     --   1. a4
>>                5     0.03   1.60   1. a4 bxa3 2. bxa3 Kg4 3. a4 Kxf5 4.
>>                                    a5
>>                5->   0.03   1.60   1. a4 bxa3 2. bxa3 Kg4 3. a4 Kxf5 4.
>>                                    a5
>>                6     0.05   1.62   1. a4 bxa3 2. bxa3 Kg4 3. a4 Kxf5 4.
>>                                    d6 cxd6
>>                6->   0.06   1.62   1. a4 bxa3 2. bxa3 Kg4 3. a4 Kxf5 4.
>>                                    d6 cxd6
>>                7     0.06     --   1. a4
>>                7     0.11  -0.42   1. a4 bxa3 2. bxa3 Kg3 3. c6 dxc6 4.
>>                                    dxc6 Kf3 5. a4 Ke4 6. Kxg2
>>                7->   0.16  -0.42   1. a4 bxa3 2. bxa3 Kg3 3. c6 dxc6 4.
>>                                    dxc6 Kf3 5. a4 Ke4 6. Kxg2
>>                8     0.16     --   1. a4
>>                8     0.25  -3.98   1. a4 bxa3 2. bxa3 Kg3 3. c6 dxc6 4.
>>                                    d6 cxd6 5. a4 h5 6. a5 h4 7. a6
>>                8     0.45  -2.36   1. Kf2 Kg4 2. Kxg2 Kxf5 3. Kf3 Ke5
>>                                    4. Ke3 Kxd5
>>                8     0.59  -2.00   1. Kxg2 Kg4 2. c6 dxc6 3. dxc6 Kxf5
>>                                    4. Kf3 h5 5. Ke3 g5
>>                8->   0.59  -2.00   1. Kxg2 Kg4 2. c6 dxc6 3. dxc6 Kxf5
>>                                    4. Kf3 h5 5. Ke3 g5 (s=4)
>>                9     0.84     ++   1. Kxg2!!
>>                9     1.09  -1.06   1. Kxg2 Kg4 2. a4 bxa3 3. bxa3 Kxf5
>>                                    4. a4 Ke5 5. a5 Kxd5 6. a6 Kc6 <HT>
>>                                    (s=3)
>>                9->   1.17  -1.06   1. Kxg2 Kg4 2. a4 bxa3 3. bxa3 Kxf5
>>                                    4. a4 Ke5 5. a5 Kxd5 6. a6 Kc6 <HT>
>>               10     1.55     ++   1. Kxg2!!
>>               10     1.91   0.20   1. Kxg2 Kg4 2. a4 bxa3 3. bxa3 Kxf5
>>                                    4. a4 Ke5 5. d6 cxd6 6. a5 Kd5 7. a6
>>                                    Kc6 8. cxd6
>>               10->   1.99   0.20   1. Kxg2 Kg4 2. a4 bxa3 3. bxa3 Kxf5
>>                                    4. a4 Ke5 5. d6 cxd6 6. a5 Kd5 7. a6
>>                                    Kc6 8. cxd6
>>               11     2.81   0.18   1. Kxg2 Kg4 2. a4 bxa3 3. bxa3 Kxf5
>>                                    4. a4 Ke4 5. d6 cxd6 6. c6 dxc6 7.
>>                                    a5 h5 8. a6 g5
>>               11->   3.16   0.18   1. Kxg2 Kg4 2. a4 bxa3 3. bxa3 Kxf5
>>                                    4. a4 Ke4 5. d6 cxd6 6. c6 dxc6 7.
>>                                    a5 h5 8. a6 g5
>>               12     4.55     ++   1. Kxg2!!
>>               12     6.05   0.71   1. Kxg2 Kg4 2. a4 bxa3 3. bxa3 Kxf5
>>                                    4. a4 Ke4 5. d6 cxd6 6. c6 dxc6 7.
>>                                    a5 h5 8. a6 g5 9. a7
>>               12->   6.42   0.71   1. Kxg2 Kg4 2. a4 bxa3 3. bxa3 Kxf5
>>                                    4. a4 Ke4 5. d6 cxd6 6. c6 dxc6 7.
>>                                    a5 h5 8. a6 g5 9. a7
>>               13     9.09     ++   1. Kxg2!!
>>               13    16.47   1.69   1. Kxg2 Kg5 2. a4 bxa3 3. bxa3 Kf6
>>                                    4. a4 Ke7 5. a5 Kd8 6. a6 Kc8 7. Kf3
>>                                    Kb8 8. Ke4 Ka7
>>               13->  17.27   1.69   1. Kxg2 Kg5 2. a4 bxa3 3. bxa3 Kf6
>>                                    4. a4 Ke7 5. a5 Kd8 6. a6 Kc8 7. Kf3
>>                                    Kb8 8. Ke4 Ka7
>>               14    18.53     --   1. Kxg2
>>               14    23.28   1.15   1. Kxg2 Kg5 2. a4 bxa3 3. bxa3 Kf6
>>                                    4. a4 Ke7 5. a5 Kd8 6. Kf3 Kc8 7. Kf4
>>                                    Kb7 8. Ke5 h5
>>               14     1:01     ++   1. f6!!
>>               14->   1:02   2.08   1. f6 (s=5)
>>               15     1:07     ++   1. f6!!
>>               15     1:18   3.30   1. f6 gxf6 2. Kxg2 Kg5 3. a4 bxa3 4.
>>                                    bxa3 Kf4 5. a4 Ke5 6. d6 cxd6 7. c6
>>                                    dxc6 8. a5 c5 9. a6 c4 10. a7 c3 11.
>>                                    a8=Q d5 (s=4)
>>               15->   1:24   3.30   1. f6 gxf6 2. Kxg2 Kg5 3. a4 bxa3 4.
>>                                    bxa3 Kf4 5. a4 Ke5 6. d6 cxd6 7. c6
>>                                    dxc6 8. a5 c5 9. a6 c4 10. a7 c3 11.
>>                                    a8=Q d5
>>               16     1:31   2.95   1. f6 gxf6 2. Kxg2 Kg5 3. a4 bxa3 4.
>>                                    bxa3 Kf4 5. a4 Ke4 6. d6 cxd6 7. c6
>>                                    dxc6 8. a5 f5 9. a6 Ke3 10. a7 f4 <HT>
>>               16->   1:51   2.95   1. f6 gxf6 2. Kxg2 Kg5 3. a4 bxa3 4.
>>                                    bxa3 Kf4 5. a4 Ke4 6. d6 cxd6 7. c6
>>                                    dxc6 8. a5 f5 9. a6 Ke3 10. a7 f4 <HT>
>>                                    (s=4)
>>               17     2:06     ++   1. f6!!
>>?              17     2:15    1/9*  1. f6
>>White(1): ?
>>              time=2:28  cpu=195%  mat=-1  n=167321426  fh=93%  nps=1.13M
>>              ext-> chk=13983671 cap=493603 pp=10304421 1rep=526374 mate=15058
>>              predicted=1  nodes=167321426  evals=65290030
>>              endgame tablebase-> probes=15  hits=15
>>              SMP->  split=4723  stop=386  data=9/64  cpu=4:50  elap=2:28
>>
>>White(1): f6
>>              time used:   2:28
>
>
>Not a bad result! This position isn't easy for computers.
>
>Did you enter the contest? Problem number 4 was clever.

ohhh...  This was the Chessbase problem - the real source is here - sorry.

http://www.chessbase.com/puzzle/christmas2003/chr03-9b.htm







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