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Subject: Re: Shredder 8 Bug

Author: Fred Wilson

Date: 13:07:36 01/22/04

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On January 22, 2004 at 00:17:51, Drexel,Michael wrote:

>On January 21, 2004 at 19:22:31, margolies,marc wrote:
>
>>this is interesting news. but it is also a 5pc ending. (which would most likely
>>be resolved by table access without calculation).
>
>No, tablebases ignore castling rights.

NONSENSE!! Tablebases do not ignore anything. You merely need to have enough
sense to enter the position correctly (castling rights as appropriate)

 KRPKR is not 100% accurate.
>
>Is there a way of translating this error into a practical way to trick
>shredder8?
>
>No
>
>Michael
>
>>
>>On January 21, 2004 at 16:56:03, Drexel,Michael wrote:
>>
>>>I don't think it will be fixed soon.
>>>
>>>[D] 8/3k4/8/8/8/8/1r2P3/R3K3 w Q - 0 1
>>>
>>>Don't forget to set the castle long flag!
>>>
>>>New game
>>>8/3k4/8/8/8/8/1r2P3/R3K3 w Q - 0 1
>>>
>>>Analysis by Shredder 8:
>>>
>>>1.Kd1
>>>  =  (0.00)   Depth: 1/1   00:00:00
>>>1.Kf1
>>>  =  (0.00)   Depth: 1/1   00:00:00
>>>1.Kf1
>>>  =  (0.00)   Depth: 1/1   00:00:00
>>>1.Kf2
>>>  =  (0.00)   Depth: 1/1   00:00:00
>>>1.Kf2
>>>  =  (0.00)   Depth: 1/1   00:00:00
>>>1.Kf2 Ke8
>>>  =  (0.00)   Depth: 2/2   00:00:00
>>>1.Kf2 Ke6
>>>  =  (0.00)   Depth: 2/3   00:00:00
>>>1.Kf2 Ke6 2.Ke3
>>>  =  (0.00)   Depth: 3/4   00:00:00
>>>1.Ra6 Ke7 2.Kf2
>>>  =  (0.00)   Depth: 3/6   00:00:00
>>>1.Ra6 Ke7 2.Kf2
>>>  =  (0.00)   Depth: 3/6   00:00:00
>>>1.Ra6 Ke7 2.Kf2 Rc2
>>>  =  (0.00)   Depth: 4/6   00:00:00
>>>1.Ra6 Ke7 2.Kf2 Rc2 3.Ke3
>>>  =  (0.00)   Depth: 5/7   00:00:00
>>>1.Ra6 Ke7 2.Kf2 Rb3 3.e4 Rb4
>>>  =  (0.00)   Depth: 6/9   00:00:00
>>>1.Ra4 Rb1+ 2.Kd2 Rb2+ 3.Kd3 Rb3+ 4.Kc2 Ke8
>>>  =  (0.00)   Depth: 7/10   00:00:00  5kN
>>>1.Ra4 Rb1+ 2.Kd2 Rb2+ 3.Kd3 Rb3+ 4.Kc2 Ke8
>>>  =  (0.00)   Depth: 7/18   00:00:00  8kN
>>>1.Ra4 Ke6 2.Re4+ Kd5 3.Re8 Kd4 4.Kf2 Rc2
>>>  =  (0.00)   Depth: 7/18   00:00:00  11kN
>>>1.Ra4 Ke6 2.Re4+ Kf5 3.Re8 Rc2 4.Kf2 Kf4 5.Rg8
>>>  =  (0.00)   Depth: 8/18   00:00:00  15kN
>>>1.Ra4 Ke6 2.Re4+ Kd5 3.Re8 Rc2 4.Kf2 Rb2
>>>  =  (0.00)   Depth: 9/17   00:00:00  27kN
>>>1.Kf2 Ke6 2.Ra8 Ke7 3.Ra4 Ke8
>>>  =  (0.00)   Depth: 9/17   00:00:00  33kN
>>>1.Kf2 Ke6 2.Ra3 Rb1 3.Re3+ Kd5 4.Re8 Rb2
>>>  =  (0.00)   Depth: 9/17   00:00:00  43kN
>>>1.Kf2 Rb4 2.Ra3 Ke6 3.Kf3 Kd5 4.Re3 Rb7 5.Re4 Rf7+ 6.Ke3
>>>  =  (0.00)   Depth: 10/22   00:00:00  110kN
>>>1.Ra4 Ke6 2.Kf2 Rb3 3.e3 Kd5 4.Kf3 Rb2 5.Kf4 Rg2 6.Re4
>>>  =  (0.00)   Depth: 10/22   00:00:00  119kN
>>>1.Ra4 Ke6 2.Kf2 Rb3 3.e3 Kd5 4.Kf3 Rb2 5.Kf4 Rg2 6.Re4
>>>  =  (0.00)   Depth: 10/22   00:00:00  119kN
>>>1.Ra4 Ke6 2.Kf2 Rb8 3.Ke3 Rf8 4.Re4+ Kd5 5.Re7 Rg8
>>>  =  (0.00)   Depth: 11/19   00:00:00  153kN
>>>1.Ra4 Ke6 2.Kf2 Rb8 3.Ke3 Rg8 4.Re4+ Kd5 5.Re7 Rb8 6.Kd2 Rb3 7.e3
>>>  =  (0.00)   Depth: 12/19   00:00:00  187kN
>>>1.Ra4 Ke6 2.Kf2 Rb8 3.Ke3 Rg8 4.Re4+ Kd5 5.Kd3 Rb8 6.Re7 Rb3+ 7.Kd2 Ra3 8.e3
>>>  =  (0.00)   Depth: 13/23   00:00:01  250kN
>>>1.Ra4 Ke6 2.Kf2 Rb5 3.Re4+ Kd5 4.Re8 Rb6 5.Kf3 Rf6+ 6.Ke3 Rb6 7.Re4 Rb8 8.Ra4
>>>Re8+ 9.Kd3 Rb8 10.e3 Rb3+ 11.Ke2
>>>  =  (0.00)   Depth: 14/29   00:00:01  567kN
>>>1.Ra4 Ke6 2.Kf2 Rb5 3.Re4+ Kd5 4.Re8 Kd4 5.e3+ Kd3 6.Rd8+ Ke4 7.Rd4+ Ke5 8.Kf3
>>>Rb1 9.Ra4
>>>  =  (0.00)   Depth: 15/28   00:00:02  872kN
>>>1.Ra4 Ke6 2.Kf2 Rb3 3.Re4+ Kf5 4.Re8 Rb4 5.Ke3 Ra4 6.Kd3 Ra3+ 7.Kd4 Ra4+ 8.Kd5
>>>Ra5+ 9.Kd6
>>>  =  (0.00)   Depth: 16/30   00:00:03  1398kN
>>>1.Ra4 Ke6 2.Kf2 Rb3 3.Re4+ Kf5 4.Re8 Rb4 5.e3 Re4 6.Rf8+ Ke6 7.Re8+ Kd5 8.Rd8+
>>>Ke6 9.Re8+ Kd5 10.Rd8+ Ke6 11.Re8+ Kd5
>>>  =  (0.00)   Depth: 17/28   00:00:04  1747kN
>>>1.Ra4 Ke6 2.Kf2 Ke5 3.Kf3 Rb3+ 4.e3 Rb5 5.Re4+ Kf6 6.Kf4 Rf5+ 7.Kg3
>>>  =  (0.00)   Depth: 18/31   00:00:06  2533kN
>>>1.Ra4 Ke6 2.Kf2 Ke5 3.Kf3 Rb3+ 4.e3 Rb5 5.Ra8 Ke6 6.Kf4 Rf5+ 7.Ke4 Re5+ 8.Kd4
>>>Rd5+ 9.Kc4 Re5 10.Ra6+ Ke7 11.Kd3 Rd5+ 12.Ke4 Rg5 13.Ra8
>>>  =  (0.00)   Depth: 18/31   00:00:06  2900kN
>>>1.Kf2 Rb4 2.Ra3 Ke6
>>>  =  (0.00)   Depth: 18/31   00:00:07  3218kN
>>>1.Kf2 Rb3 2.Rd1+ Ke6 3.Rd8 Ke5 4.Ra8 Kd6 5.Ke1 Rb4 6.e3
>>>  =  (0.00)   Depth: 18/33   00:00:12  5802kN
>>>1.Kf2 Rb3 2.Rd1+ Ke6 3.Rd8 Ke5 4.Re8+ Kd6 5.Re4 Rh3 6.Kg2 Kd5 7.Re8 Rh5 8.Re3
>>>  =  (0.00)   Depth: 19/33   00:00:14  6916kN
>>>1.Kf2 Rb3 2.Rd1+ Ke6 3.Rd8 Ke5 4.Re8+ Kd6 5.Rh8 Ke7 6.Rh4 Kd6 7.Ra4
>>>  =  (0.00)   Depth: 20/33   00:00:18  8885kN
>>>1.Kf2 Rb3 2.Rd1+ Ke6 3.Rd8 Ke5 4.Re8+ Kd6 5.Ra8 Ke7 6.Re8+ Kxe8 7.e4
>>>  =  (0.00)   Depth: 21/38   00:00:25  12050kN
>>>1.Ra6 Rb5 2.Kf2 Rb3
>>>  =  (0.00)   Depth: 21/38   00:00:30  14455kN
>>>1.Ra6 Rb3 2.Kf2 Rb4
>>>  =  (0.00)   Depth: 21/38   00:00:33  16036kN
>>>1.Ra6 Rb3 2.Kf2 Ke7 3.Rg6 Rb4 4.Kf3 Rb8 5.Kf4 Kd7 6.Rg3 Rf8+ 7.Ke4 Kd6 8.Ra3 Rg8
>>>  =  (0.00)   Depth: 22/37   00:00:47  24061kN
>>>1.Ra6 Rb3 2.Kf2 Ke7 3.Rg6 Rb4 4.Kf3 Rb3+ 5.Kf4 Rb2 6.e4 Kd7
>>>  =  (0.00)   Depth: 23/40   00:00:53  27032kN
>>>1.Ra6 Rb5 2.Kf2 Re5 3.Kf3 Rh5 4.Kf4 Ke7 5.Rg6 Rh2 6.e4 Kd7
>>>  =  (0.00)   Depth: 24/39   00:01:05  33921kN
>>>
>>>New game
>>>8/3k4/8/8/8/8/1r2P3/R3K3 w Q - 0 1
>>>
>>>Analysis by Shredder 7.04:
>>>
>>>1.Kf2
>>>  ±  (0.71)   Depth: 1/1   00:00:00
>>>1.0-0-0+ Ke6
>>>  +-  (#14)   Depth: 1/2   00:00:00
>>>1.0-0-0+ Ke6
>>>  +-  (#14)   Depth: 1/2   00:00:00
>>>1.0-0-0+ Ke6
>>>  +-  (#14)   Depth: 2/2   00:00:00
>>>1.0-0-0+ Ke6
>>>  +-  (#14)   Depth: 3/3   00:00:00
>>>1.0-0-0+ Ke6
>>>  +-  (#14)   Depth: 4/4   00:00:00
>>>
>>>New game
>>>8/3k4/8/8/8/8/1r2P3/R3K3 w Q - 0 1
>>>
>>>Analysis by Hiarcs 9:
>>>
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 1   00:00:00
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 2/5   00:00:00
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 3/5   00:00:00
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 4/7   00:00:00
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 5/7   00:00:00, tb=17
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 6/9   00:00:00, tb=19
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 7/10   00:00:00  1kN, tb=22
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 8/11   00:00:00  3kN, tb=25
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 9/13   00:00:00  7kN, tb=43
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 10/15   00:00:00  12kN, tb=67
>>>1.0-0-0+
>>>  +-  (#14)   Depth: 11/15   00:00:00  25kN, tb=138
>>>
>>>Michael



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