Author: F. Huber
Date: 04:30:28 03/03/04
Go up one level in this thread
On March 03, 2004 at 06:43:02, Michael Diosi wrote: >On March 03, 2004 at 04:18:30, Paul Byrne wrote: > >>Granted, it is not a terribly useful position, as it came from a wild 8 (pawns >>start on 4th rank) game on ICC between 2 patzers. And a very short search will >>get you a score of +10 to +15 and better in white's favor. >> >>It is, however, surprisingly tough to see the mate, and makes an interesting >>test position... >> >>[D]r1b3n1/6k1/1n6/pP3qPQ/2PP2p1/1p4b1/4B3/R1BK2NR w - - 0 15 >> >>Guildenstern's normal search cannot see it here, while it's PN search gets it in >>under 30 seconds on an athlon 2400+. The line the PN search produces is mate in >>19, but is likely not optimal, as PN search is not terribly concerned with >>winning in the least number of moves. >> >>So, what programs can see the win from here? >> >>-paul > >Hi, > >it's a mate in 15... > >Michael Absolutely correct, Michael - rather good our beta ... ;-) (Until now I´ve not found the optimum settings for ChestUCI, so it takes a little bit too long for Chest, but I´ll go on trying ...) One of the possible PVs is: 1.Qh8+ Kf7 2.Rh7+ Qxh7 3.Qxh7+ Ke8 4.Qxg8+ Kd7 5.Qf7+ Kd8 6.Qf6+ Kc7 7.Qc6+ Kd8 8.g6 Ra7 9.Bg5+ Re7 10.g7 Be6 11.Qxb6+ Kd7 12.Qc6+ Kd8 13.Qxe6 Be1 14.b6 g3 15.g8Q# Regards, Franz.
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