Author: Peter McKenzie
Date: 10:10:52 02/19/00
Go up one level in this thread
On February 18, 2000 at 22:58:32, Ricardo Gibert wrote: >On February 18, 2000 at 03:43:31, Peter McKenzie wrote: > >>On February 18, 2000 at 01:49:52, Steffen Jakob wrote: >> >>>Hi all, >>> >>>can someone please give me the solution (not only the key move (b4 or h4) but >>>whole lines) of position #7 from the "uskieg" test suite? >>> >>>[D]8/7p/p7/1p1k4/8/3K4/1P4PP/8 w >>> >>>How long does your program take to find the solution and which tablebases do you >>>have installed? >>> >>>Best wishes, >>>Steffen. >> >>LambChop likes 1.b4 from the word go, but after a few minutes doesn't see the >>win. >> >>I think 1.b4 does win, white has the plan of creating a passed pawn on the >>kingside to lure the black king away, then the white king gobbles the queenside >>pawns. This is a bit tricky to carry out because black's king is active. >> >>After 1.b4 Ke5 2.g3 Kd5 3.g4 Ke5 4.Ke3 Kd5 5.h4 white should be too fast. >> >>Instead, 2...Kf5 looks a better defense. Now 3.Ke3? Kg4 4.Kf2 Kh3 5.Kg1 a5! is >>fine for black. >> >>Better is 3.h3 Ke5 and I think the surprising 4.h4! is good for white. >> >>Hope I'm not talking nonsense here, its getting late :-) >> >>cheers, >>Peter > >My analysis assisted by Fritz: > >1.b4 Ke5 2.g3 Kf5 3.h3 Ke5 4.h4 > [4.Ke3 Kd5 5.g4 Kc4 6.g5 Kxb4 7.h4 Ka3 probably =] >4...h5 5.Ke3 Kf5 > [5...Kd5 > A) 6.g4 hxg4 7.h5 (7.Kf4 a5=) > 7...Ke5 8.h6 Kf6 9.Kf4 Kg6 10.Kxg4 a5=; > B) 6.Kf4 6...Kc4 7.g4 a5 8.g5 Kd5 9.g6 > Ke6 10.g7 Kf7 11.g8Q+ Kxg8 12.bxa5+-] >6.Kf3 Ke5 > [6...a5 7.bxa5 b4 8.Ke3+-] >7.g4 hxg4+ 8.Kxg4 a5= > >This all looks fairly routine, but there could be something >clever Fritz & I missed. It looks correct to me. I'm now of the opinion that 1.b4 leads only to a draw, can anyone see a win for white there?
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