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Subject: Re: Chesstiger 15 bug in EGTB position with en-passant move

Author: Vincent Lejeune

Date: 16:30:40 09/12/03

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On September 12, 2003 at 17:57:25, George Tsavdaris wrote:

>On September 12, 2003 at 14:19:33, Christophe Drieu wrote:
>
>>This is my Tiger 15 (Lokasoft) output:
>>
>>00:00:00.0	4,10	1	2	Kh6
>>00:00:00.0	4,14	1	30	Kh6
>>00:00:00.0	4,14	2	57	Kh6 Kg4
>>00:00:00.0	5,04	3	141	Kh6 Kg4 Nf5
>>00:00:00.0	5,30	3	191	Kh6 Kg4 Nf5 Kxf5 Kxh5
>>00:00:00.0	5,30	4	235	Kh6 Kg4 Nf5 Kxf5 Kxh5
>>00:00:00.0	5,64	5	597	Kh6 Kg4 Nf5 Kxf5 Kxh5
>>00:00:00.0	5,64	6	769	Kh6 Kg4 Nf5 Kxf5 Kxh5 Kf4
>>00:00:00.0	6,54	7	861	Kh6 Kg4 Nd5 Kh4 Nf6
>>00:00:00.0	9,32	7	1279	Kh6 Kg4 Nd5 Kf5 Kxh5 Ke5 Nf6
>>00:00:00.0	9,32	8	1847	Kh6 Kg4 Nd5 Kf5 Kxh5 Ke5 Nf6
>>00:00:00.1	9,40	9	3603	Kh6 Kh4 Nd5 Kg4 Nf6+ Kf4 Kxh5 Ke5 Kh4
>>00:00:00.1	10,30	10	6034	Kh6 Kh4 Nd5 Kg4 Nf6+ Kf4 Nxh5+ Ke3 g5
>>00:00:00.1	10,30	10	6577	Kh6 Kh4 Nd5 Kg4 Nf6+ Kf5 Nxh5 Ke6 g5
>>00:00:00.1	10,84	11	11133	Kh6 Kh4 Nd5 Kg4 Nf6+ Kf5 Nxh5 Ke6 g5 Kf5 Nf4
>>00:00:00.1	11,74	12	16239	Kh6 Kh4 Nd5 Kg4 Nf6+ Kf5 Nxh5 Ke6 g5 Kf5 Nf4
>>00:00:00.2	 Mate in 16	12	19744	Kh6 Kh4 Nd5 Kg4 Nf6+ Kh4 Nxh5 Kg4 g5
>>00:00:00.2	 Mate in 16	13	44672	Kh6 Kh4 Nd5 Kg4 Nf6+ Kh4 Nxh5 Kg4 g5
>>00:00:00.4	 Mate in 16	14	83384	Kh6 Kh4 Nd5 Kg4 Nf6+ Kh4 Nxh5 Kg4 g5
>>00:00:00.7	 Mate in 16	15	177882	Kh6 Kh4 Nd5 Kg4 Nf6+ Kh4 Nxh5 Kg4 g5
>>00:00:01.0	 Mate in 16	16	298694	Kh6 Kh4 Nd5 Kg4 Nf6+ Kh4 Nxh5 Kg4 g5
>>00:00:01.8	 Mate in 16	17	532274	Kh6 Kh4 Nd5 Kg4 Nf6+ Kh4 Nxh5 Kg4 g5
>>00:00:03.0	 Mate in 16	18	926241	Kh6 Kh4 Nd5 Kg4 Nf6+ Kh4 Nxh5 Kg4 g5
>>00:00:05.1	 Mate in 16	19	1682409	Kh6 Kh4 Nd5 Kg4 Nf6+ Kh4 Nxh5 Kg4 g5
>>00:00:08.2	 Mate in 16	20	2832246	Kh6 Kh4 Nd5 Kg4 Nf6+ Kh4 Nxh5 Kg4 g5
>
>I can't believe this. CT-15.0 solve this in your computer in Lokasoft GUI, but
>not in mine. What version for ChessPartner do you have? How much hash tables
>did you use for the above analysis and what hardware was this?

CP 5.3; 384 MB hash; Barton@2.2 Ghz
but someone already reply that's a known bug ...
Do you have all the 3-4-5 pieces EGTB ?



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