Author: Dann Corbit
Date: 15:42:50 02/03/00
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On February 03, 2000 at 17:08:37, Amir Ban wrote: > >There's an article by Nunn & Friedel in the latest ICCAJ called "Brains of the >Earth" on a contest to solve 6 very hard king & pawn endings. The article says >solving this suite in 24 hours was an exceptional achievement, and Kasparov made >an amazing achievement of solving it in 45 minutes. It's also possible to >understand from the article that Hiarcs could not solve the set. > >So I set up the EPD, intending to let Junior think about it all night, but I was >surprised to find that Junior (no tablebases) can find all 6 key moves in less >than 2 minutes each. > >Here is the EPD: > >6k1/6p1/8/4K1P1/8/7P/8/8 w - - ; bm Kf4; >k7/4p3/4p3/8/8/3P1P2/5P2/K7 w - - ; bm Kb2; >8/4p3/2kp4/4p3/6K1/5P2/3P4/8 w - - ; bm Kg5; >k7/8/1p6/p1p5/2P4K/8/PP6/8 w - - ; bm a4; >8/8/p7/8/1P6/7p/P4k1P/3K4 w - - ; bm a3; >8/5p1p/8/6k1/8/6P1/5PP1/7K w - - ; bm Kh2; > >I don't quite understand it. Surely, it is meant to prove the checkmate in each case. In all cases except the first (which I believe has an alternate solution) crafty finds the right answer immediately. The slowest one was: 8/8/p7/8/1P6/7p/P4k1P/3K4 w - - ; bm a3; which took 1:32 on a very busy PII 300, but also was closing in on the checkmate. So, I think the problem is not to find the key moves but to prove the checkmates.
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