This is a VERY tricky puzzle. White to move and win.
7k/7P/6K1/8/R7/8/8/7b w – – 0 1
Vancura, 1924
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Wow – I remember from DEK that most of these positions with an extra rook pawn are drawn… here though theBlack bishop doesnt control h7 (obviously) so White can win if carefull…. I think the rather unobvious first move is Kg5 to relieve the stalemate tricks – which rather luckily keeps the h-pawn due to the fork on the h-file…
Nice problem… will go back and look at the RvB chapter of DEK now to refresh memory…
Kg5 Kxh7 Rh4+ Wins B and mate is on the horizon.
kg5
Kg5
Rb7 to support h7 for the bishop check then move rook somwhere in 7th rank for mate in two next move in the 8th rank.
1. Kh6 Be4 2.Ra7… the rest is easy and clear. That is for me.
Piatos blue, Philippines
A difficult endgame.
If white plays 1.Ra7? Be4+! 2.Kh6 Bb7! 3.Kg5 Be4! and white has nothing.
The idea must be to put the rook on the seventh rank on other cell, not a7.
1.Kf5 not works – Bd5 2.Rd4 Ba2 3.Rd7 Bb1+
so, the solution is, I think, 1.Kg5! black has no time for Kxh7.
1…Bg2 (1..Bd5 2.Rd4 Bc6 3.Rc4 and Rc7) 2.Rg4! Bh3 3.Rc4 and next move Rc7, and then Kh6, winning.
1. Kg6-f5
–br
Instructive that an immediate Kh6 only draws.
1.Kg5!! Bc6 2.Rc4!! Bb5
3.Rc7!! Bd3 and now 4.Kh6!!
and now White is set to mata without interruption from a stalemate threat.
@ano March 29, 2010 1:51:00
after Ra7, Bb7, and the white loose their pawn no ?
MVP
Rd4 (threatens mate),Black plays Be4+.After Kh6,Bxh7 then Rd7 Bg8 ,Now Re7 and Bishop is Zugzwang.If Bh7 then Rxh7 and any other B move then…….no it doesn`t work…..darn !
Kg5 !!