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Subject: Re: Pawn endgame test position

Author: Robert Hyatt

Date: 13:33:25 11/24/04

Go up one level in this thread


On November 24, 2004 at 11:10:28, Jason Kent wrote:

>>I get a draw score in 2 seconds on my 750mhz laptop.  Perhaps you have something
>>broken, such as a position.bin file with old information:
>>
>>               26->   1.75   1.74   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4.
>>                                    e6+ Ke8 5. Kf6 Kf8 6. Ke5 Ke7 7. Kd5
>>                                    Ke8 8. Ke4 Kf8 9. Kf4 Ke8 <HT>
>>               27     1.78     -1   1. ... Ke6!!
>>               27     1.81     -3   1. ... Ke6!!
>>               27     2.25  -0.01   1. ... Ke6 2. Kg5 Kxe5 3. Kg4 Kd4 4.
>>                                    Kf5 Kd5 5. Kf6 Kd6 6. Kg7 Ke6 7. Kxh7
>>                                    Kf7 8. Kh8 Kg6 9. h7 Kf7
>>               27->   2.27  -0.01   1. ... Ke6 2. Kg5 Kxe5 3. Kg4 Kd4 4.
>>                                    Kf5 Kd5 5. Kf6 Kd6 6. Kg7 Ke6 7. Kxh7
>>                                    Kf7 8. Kh8 Kg6 9. h7 Kf7
>
>I'm not sure if you noticed I was tested with no TBs.  I deleted the
>position.bin file.
>


Here is the rest of the output:

               27     2.58  -0.01   1. ... Ke6 2. Kg5 Kxe5 3. Kg4 Kd4 4.
                                    Kf5 Kd5 5. Kf6 Kd6 6. Kg7 Ke6 7. Kxh7
                                    Kf7 8. Kh8 Kg6 9. h7 Kf7
               27->   2.63  -0.01   1. ... Ke6 2. Kg5 Kxe5 3. Kg4 Kd4 4.
                                    Kf5 Kd5 5. Kf6 Kd6 6. Kg7 Ke6 7. Kxh7
                                    Kf7 8. Kh8 Kg6 9. h7 Kf7
               28     2.73     +1   1. ... Ke6
               28     3.25  -0.01   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4.
                                    e6+ Ke7 5. Ke5 Ke8 6. Kf4 Kf8 7. Ke4
                                    Ke7 8. Ke5
               28->   3.30  -0.01   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4.
                                    e6+ Ke7 5. Ke5 Ke8 6. Kf4 Kf8 7. Ke4
                                    Ke7 8. Ke5
               29     3.41  -0.01   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4.
                                    e6+ Ke8 5. Kg5 Ke7 6. Kf5 Ke8
               29->   3.46  -0.01   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4.
                                    e6+ Ke8 5. Kg5 Ke7 6. Kf5 Ke8
               30     3.51  -0.01   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4.
                                    e6+ Ke8 5. Kg5 Ke7 6. Kf5 Ke8
               30->   3.57  -0.01   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4.
                                    e6+ Ke8 5. Kg5 Ke7 6. Kf5 Ke8
               31     3.71     +1   1. ... Ke6
              time=5.01  cpu=76%  mat=1  n=2709705  fh=98%  nps=540K
              ext-> chk=272124 cap=179 pp=15452 1rep=1954 mate=29
              predicted=0  nodes=2709705  evals=550521  50move=0
              endgame tablebase-> probes=0  hits=0

Notice the last line...


>After 3 minutes this is the only output I got from 19.12.  Only depth 26
>reached!
>
>Crafty-19.12  WB2 101 MB:
>
>23   00:08  3.82   1. ... Kf7 2. Kf5 Ke7 3. Ke4 Ke6 4. Kd4 Kf7 5. Ke3 Ke7 6. Kf3
>Kf7 7. Kf4 Kg6 8. Ke4 Kf7 9. Kd4 Ke7 10. Kd5 Kf7 11. Kd6 Kg6 12. e6 Kf6
>24   00:11  4.72   1. ... Kf7 2. Kf5 Ke7 3. Ke4 Ke6 4. Kd4 Kf7 5. Kd5 Ke7 6. e6
>Ke8 7. Ke5 Ke7 8. Kf5 Ke8 9. Ke4 Kf8 10. Kf4 Ke8 11. Kf5 Ke7 12. Ke5 Ke8 13. Kf6
>25   00:11  4.32   1. ... Kf7!!
>25   00:11  3.95   1. ... Kf7 2. Kf5 Ke7 3. Ke4 Ke6 4. Kd4 Kf7 5. Kd5 Ke7 6. e6
>Ke8 7. Ke5 Ke7 8. Kf5 Ke8 9. Ke4 Kf8 10. Kf4 Ke8 11. Kf5 Ke7 12. Ke5 <HT>
>26   00:12  4.22   1. ... Kf7 2. Kf5 Ke7 3. Ke4 Ke6 4. Kd4 Kf7 5. Kd5 Ke7 6. e6
>Ke8 7. Ke5 Ke7 8. Kf5 Ke8 9. Ke4 Kf8 10. Kf4 Ke8 11. Kf5 Ke7 12. Ke5 Ke8 13. Kd5
>Kf8 14. Kd6
>
>I tried 19.17 as well and had the same problem.
>
>Crafty-19.17  WB2 101 MB:
>
>22   00:00  1.90   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4. e6+ Ke8 5. Kf4 Ke7 6. Ke5
>Ke8 7. Kd6 Kd8 8. Kc6 Ke7 9. Kd5 Ke8 10. Kd4 Kf8 11. Ke4 Ke8 12. Kf3 Kf8
>23   00:00  1.74   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4. e6+ Ke8 5. Kf4 Ke7 6. Ke5
>Ke8 7. Kd6 Kd8 8. Kc6 Ke7 9. Kd5 <HT>
>24   00:01  1.74   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4. e6+ Ke8 5. Kf4 Ke7 6. Ke5
>Ke8 7. Kd6 Kd8 8. Kc6 Ke7 9. Kd5 <HT>
>25   00:02  1.34   1. ... Ke6!!
>25   00:02  1.74   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4. e6+ Ke8 5. Kf4 Ke7 6. Ke5
>Ke8 7. Kd6 Kd8 8. Kc6 Ke7 9. Kd5 <HT>
>26   00:08  1.34   1. ... Ke6!!
>26   00:08  0.34   1. ... Ke6!!
>26   00:08  1.32   1. ... Ke6 2. Ke4 Ke7 3. Kf5 Kf7 4. e6+ Ke8 5. Kf6 Kf8 6. Ke5
>Ke7 7. Kd5 Ke8 8. Kd4 Kf8 9. Ke4 Ke8 10. Kd5 Ke7 11. Ke5 Ke8 12. Ke4 Kf8 13. Kd4
>Ke8 14. Ke3 Ke7


Looks like incredibly slow hardware.  My run above is on a 750mhz sony laptop...




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