Author: Dieter Buerssner
Date: 12:26:34 03/08/02
Go up one level in this thread
On March 08, 2002 at 09:22:58, Ed Schröder wrote:
>[d]4r3/p1p1pPp1/P1P1P1P1/5K2/3p2P1/7p/3P1ppr/3R1nkq w - - id M19;
>
>I came across this beauty, mate in 19 moves. Rebel has no clue.
One method to solve this comparatively fast, is doing a "one reply extension"
(also when not in check). I guess, some chess engines, that usually use a legal
move generator (mine doesn't) may have good chances. With this idea:
10720652 46.937 0.00 19t 1. fxe8=Q d3 2. Qxe7 {-420}
11152826 48.939 Mat19 19++ 1. fxe8=N d3 2. Nf6 gxf6 3. Kf4 f5 4. g7 fxg4
5. g8=N g3 6. Nf6 exf6 7. e7 f5 8. Kg5 f4 9.
e8=N f3 10. Nd6 cxd6 11. c7 d5 12. c8=N d4 13.
Nb6 axb6 14. a7 b5 15. a8=N b4 16. Nb6 b3 17.
Nd7 b2 18. Ne5 b1=Q 19. Nxf3# {-2402}
14556809 1:01.8 Mat19 19t 1. fxe8=N d3 2. Nf6 gxf6 3. Kf4 f5 4. g7 fxg4
5. g8=N g3 6. Nf6 exf6 7. e7 f5 8. Kg5 f4 9.
e8=N f3 10. Nd6 cxd6 11. c7 d5 12. c8=N d4 13.
Nb6 axb6 14. a7 b5 15. a8=N b4 16. Nb6 b3 17.
Nd7 b2 18. Ne5 b1=Q 19. Nxf3# {-2402}
Without this, no chance for Yace in reasonable time.
Regards,
Dieter
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