Author: Andreas Stabel
Date: 08:27:43 10/20/03
Go up one level in this thread
On October 20, 2003 at 09:50:01, Cliff Sears wrote:
>Hi!
>
>I noticed that others said nine. The move list here shows nine as well so it
>must be Chess Partner quirk.
>
>Cliff
>
>
>On October 20, 2003 at 09:13:07, leonid wrote:
>
>>On October 19, 2003 at 21:21:28, Cliff Sears wrote:
>>
>>>Rebel 12 found this:
>>>
>>>00:03:39.2 Mate in 8 11 22454519 Nb3+ Kd5 Rxd6+ exd6 Nxf6+ Ke5 Nd7+ Kd5 Nb6+
>>
>>Is there different number counting in Rebel, or simply mistake?
>>
>>In some programs counting of number of moves differ in magnitude of one.
>>
>>Leonid.
>>
>>>Kc6
>>>
>>>
>>>
>>>On October 19, 2003 at 18:04:07, leonid wrote:
>>>
>>>>Hi,
>>>>
>>>>Try this, it should be easy and fun:
>>>>
>>>>[D] 2r1N2B/1P1RpP1Q/K2nnp1R/Npk3p1/3p1p1r/2pbb3/PP5p/1q1B4 w - -
>>>>
>>>>Please indicate Your result.
>>>>
>>>>Leonid.
Chest says no solution in 8 moves, so I think Rebel is wrong here.
(My faith in Chest is big :)
Here is the output from a 9 move search:
CHEST version 3.19, 18-Dec-1999
Options = -r -S -z 9 -l
Input file: 'doit.inp'
Reading job:
# Mate in ?
W: Ka6 Qh7 Rd7 Rh6 Bd1 Bh8 Na5 Ne8 Pa2 Pb2 Pb7 Pf7 (12)
B: Kc5 Qb1 Rc8 Rh4 Bd3 Be3 Nd6 Ne6 Pb5 Pc3 Pd4 Pe7 Pf6 Pf4 Pg5 Ph2 (16)
FEN: 2r1N2B/1P1RpP1Q/K2nnp1R/Npk3p1/3p1p1r/2pbb3/PP5p/1q1B4 w - -
analysing (mate in 9 moves):
Solution (in 9 moves):
Na5 - b3
Time (virt) = 408.849 sec (ca. 6.8 min)
Nb3+ Kd5 Nxf6+ ...+7
Rxd6+ ...+7
Kb4 a3+ ...+5
Kc4 Nxd6+ ...+4
Kc6 Rxd6+ ...+4
end of solution tree
Total Time (virt) = 437.500 sec (ca. 7.3 min)
Regards
Andreas Stabel
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