Author: Hermano Ecuadoriano
Date: 04:53:30 02/02/01
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On February 02, 2001 at 03:19:14, Timothy J. Frohlick wrote: >On February 02, 2001 at 01:28:59, Jouni Uski wrote: > >>[D]8/6kn/3B3p/5K1B/8/8/8/8 b - - >> >>resign 1-0! Why? Is this really white's win? >> >>JouniDate: 1/2/2001 > >Jouni, > >Gambit Tiger without tablebases solves this as a mate in 46 in 26 minutes on a >PII 333 with 48 Megs Hash. > >1... Ng5 2. Bc5 Nf7 3. Bd4+ Kf8 4. Kf6 Ng5 5. Bc5+ Kg8 6. Kf5 Nf7 7. Be7 Ng5 8. >Bb4 Nf7 9. Kg6 Ne5+ 10. Kf6 Nd7+ 11. Ke7 Ne5 12. Bc3 Nc6+ 13. Ke8 Kh7 14. Kf7 >Ne5+ 15. Kf6 Nc6 16. Bf3 Nd8 17. Bb4 h5 18. Be4+ Kh8 19. Be7 Nc6 20. Bxc6 Kh7 >21. Be4+ Kg8 22. Kg6 Kh8 23. Bd5 h4 24. Bf6# I can't come anywhere close to duplicating this. In fact, I can play forward all the way to the position after 15. Kf6, and it still takes 6 minutes to find a mate. And then, it isn't nine more moves, as your solution suggests. It says mate in 16. That would be a total of 61 plies from the initial position. That's a bit of a stretch, even for Gambit Tiger. Maybe I've done something wrong. I hope someone else will try this. > > >1-0 > >Maybe tablebases are not all that great after all. They don't always find the >shortest solution to a problem. > >Tim Frohlick
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