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Subject: Re: Finding a mate very quickly - copy of fragment from r.g.c.c

Author: Djordje Vidanovic

Date: 15:40:39 04/15/98

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On April 15, 1998 at 15:40:59, Ed Schröder wrote:

>2r5/p3kpp1/4b1r1/1B2Q2p/1P6/q1N2P2/P5nP/3R1R1K w - - id Gurevich, D. -
>Young, R.; bm e5d6;
>
>Rebel 9.0 needs 10 seconds.
>Machine PII-266
>Announcement is mate in 12.
>
>- Ed -

On my AMD K6/233, under Win95 (4MB Hash), Rebel 8 finds the mate in 12
(759.752 positions), ply 5, announcement 'mate in 12' in 9 seconds. The
mysterious Rebel X engines perform as follows (all find the mate in 12):
 Rebel Decade 2 - 52 seconds, Rebel 7 - 9 seconds, Rebel 8 - 9 seconds,
Rebel 9 - 9 seconds!  (Different number of nodes, however).  CM 5500
findings confirmed, mate in 12 in 6 seconds.  Regarding Fritz5 and its
modules:  Junior 4.6 did not find the mate in one minute, neither did
Fritz (I assigned 32 MB hash to it); Hiarcs 6 found it in 46 seconds,
ply 7/23, annoucement '#12'.



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