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Subject: Re: Nunn's K ? P suite [#2]

Author: Bernhard Bauer

Date: 00:05:49 02/07/00

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On February 04, 2000 at 17:09:04, Jeremiah Penery wrote:

>On February 04, 2000 at 14:28:30, Dann Corbit wrote:
>
>>k7/4p3/4p3/8/8/3P1P2/5P2/K7 w - - acd 34; acn 1884434895; acs 7006; bm Kb2; ce
>>148; pv Kb2 Kb7 Kc3 e5 d4 Kc6 dxe5 Kd5 f4 Ke4 Kc4 Kxf4 Kd5 Kf5 f3 Kg5 Ke4 e6 Ke3
>>Kg6 f4 Kf7 Kd4 Ke7 Kc5 Kd7 Kb6 Kd8 Kc6 Ke8 Kd6 Kf7 Kc6;
>
>23->  95:53   9.68   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc7 4. dxe5
>                     Kc6 5. Kd4 Kd7 6. Kd5 e6+ 7. Kc5 Kc7
>                     8. f4 Kd7 9. f5 Kc7 10. fxe6 Kc8 11.
>                     Kc6 Kd8 12. Kb7 Ke7
>24   101:20     ++   1. Kb2!!
>(This did not resolve by 180 minutes.)
>
>I still have no idea what I did to make Crafty solve this (with TBs), but it is
>indeed strange that nobody else seems to have gotten a good score back on this
>one.

Here some output produced by Crafty 17.7.
Kind regards
Bernhard

               21->   3:01   4.04   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke4 6. Kc4 Kf5 7. Kc5 Kg6
                                    8. f3 Kg7 9. Kd5 Kf7 10. f5 Ke8
               22     3:07     ++   1. Kb2!!
               22     5:22   6.32   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kc5 5. f4 Kd5 6. Kd3 Ke6 7. Ke4 Kf7
                                    8. f5 Ke8 9. Kd5 Kf7 10. f6 e6+ 11.
                                    Kd6 Ke8 12. Kxe6
               22->   5:23   6.32   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kc5 5. f4 Kd5 6. Kd3 Ke6 7. Ke4 Kf7
                                    8. f5 Ke8 9. Kd5 Kf7 10. f6 e6+ 11.
                                    Kd6 Ke8 12. Kxe6
               23     5:29     ++   1. Kb2!!
               23    11:09  11.09   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd7 5. f4 Ke6 6. Kd4 Kf5 7. Kc5 Kg6
                                    8. Kc6 Kf5 9. Kd7 Kg4 10. Kxe7 Kf3
                                    11. f5 Ke4 12. Ke6
               23->  11:10  11.09   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd7 5. f4 Ke6 6. Kd4 Kf5 7. Kc5 Kg6
                                    8. Kc6 Kf5 9. Kd7 Kg4 10. Kxe7 Kf3
                                    11. f5 Ke4 12. Ke6
               24    12:58  11.09   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke4 6. Kc4 Kf5 7. Kc5 Kg6
                                    8. Kc6 Kf5 9. Kd7 Kg4 10. Kxe7 Kf3
                                    11. f5 Ke4 12. Ke6 <HT>
               24->  12:59  11.09   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke4 6. Kc4 Kf5 7. Kc5 Kg6
                                    8. Kc6 Kf5 9. Kd7 Kg4 10. Kxe7 Kf3
                                    11. f5 Ke4 12. Ke6 <HT>
               25    13:10     ++   1. Kb2!!
               25    24:01  11.91   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke4 6. Kc4 Kf5 7. Kc5 Kg4
                                    8. Kc6 Kf5 9. Kd7 e6 10. f3 Kg6 11.
                                    Kxe6 Kh5 <HT>
               25->  24:05  11.91   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke4 6. Kc4 Kf5 7. Kc5 Kg4
                                    8. Kc6 Kf5 9. Kd7 e6 10. f3 Kg6 11.
                                    Kxe6 Kh5 <HT>
               26    24:24     ++   1. Kb2!!
               26    79:53  12.97   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke4 6. Kc4 Kf5 7. Kd4 Kg6
                                    8. Ke4 Kg7 9. f5 Kg8 10. Kd4 Kf7 11.
                                    Kd5 <HT>
               26->  79:57  12.97   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke4 6. Kc4 Kf5 7. Kd4 Kg6
                                    8. Ke4 Kg7 9. f5 Kg8 10. Kd4 Kf7 11.
                                    Kd5 <HT>
               27    80:44     ++   1. Kb2!!
               27   167:58  25.44   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke6 6. Kd3 Kf5 7. Kd4 Kg4
                                    8. Ke4 Kh5 9. f5 Kg5 10. f6 Kg4 11.
                                    Kd3 Kh4 12. Kd4 Kg5 13. fxe7 <HT>
               27-> 168:12  25.44   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke6 6. Kd3 Kf5 7. Kd4 Kg4
                                    8. Ke4 Kh5 9. f5 Kg5 10. f6 Kg4 11.
                                    Kd3 Kh4 12. Kd4 Kg5 13. fxe7 <HT>
               28   170:43     ++   1. Kb2!!
               28-> 711:26  25.83   1. Kb2 Kb7 2. Kc3 e5 3. d4 Kc6 4. dxe5
                                    Kd5 5. f4 Ke6 6. Kd3 Kf5 7. Kd4 Kg4
                                    8. Ke4 Kh5 9. f5 Kg5 10. f6 Kg4 11.
                                    Kd3 Kh4 12. Kd4 Kg5 13. fxe7 <HT>
               29   713:06     ++   1. Kb2!!
              time=750:00  cpu=199%  mat=1  n=4102664199  fh=0%  nps=91169
              ext-> checks=-1549778898 recaps=20203733 pawns=55056662
1rep=296640165 thrt:51452
              predicted=0  nodes=4102664199  evals=443634480
              endgame tablebase-> probes done=30239613  successful=16615567
              hashing-> trans/ref=0%  pawn=0%  used=99%
              SMP->  split=22196  stop=2086  data=13/64  cpu=1499:36
elap=750:00



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