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Judit Polgar- WCC 2011- 4-b Position 
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Pawn

Joined: Sun Sep 18, 2011 7:59 am
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 Judit Polgar- WCC 2011- 4-b Position
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This interesting posion occoured in 4-b game of D.L.Perez vs J.Polgar game of World Cup Chess -2011. Having lost her White game in the previous round, she had to win this game to equalise and fight for chances in the next round against the same opponent. As it could be seen, it is a classic RB vs R ending, a daunting task even for experts under time pressure. This position had occurred on move Nos.95, 105 & 107. Unfortunately Perez did not claim draw by reputation and the game continued and she eventually won with less than 3 minutes to spare! What should be the best continuation?


Sun Sep 18, 2011 9:58 am
Pawn

Joined: Thu Jul 21, 2011 4:28 am
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 Re: Judit Polgar- WCC 2011- 4-b Position
Isn't it Bc4?


Sun Sep 18, 2011 10:42 am
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 Re: Judit Polgar- WCC 2011- 4-b Position
Masq wrote:
Isn't it Bc4?


No, just check on h3 and back to original position

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Sun Sep 18, 2011 11:27 am
Pawn

Joined: Sun Sep 18, 2011 7:59 am
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 Re: Judit Polgar- WCC 2011- 4-b Position
SOLUTION (CHECK THIS OUT ONLY IF YOU RUN OUT OF PATIENCE)

1...bc5 is useless as 2.rh3+ bd3 (or Black king moves and lets White king out of the cage) 3.ra2 back to the same position. 1..ra1+ ra2 or 1...rb6 2.rh4 ra6+ 3.ra4.
Hence, 1...bf1!! (zugzwang) 2.rf2 bc5!! 3.rf3+ bd3! 4.rf2 (to guard against mate on a1) rb3+!
5.ka4 rb6 6.rf5 bxf5 or 5.ka2 rb5 6.ka1 re5 7.rg2 re1+ 8.ka2 bc4 9.ka3 ra1+ 10.ra2 rxa2 mate.


Mon Sep 19, 2011 2:05 am
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