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Puzzle with a mystery!

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19th April 2008, 03:09am
#1
by Jeremy80
Göteborg Sweden
Member Since: Mar 2008
Member Points: 74

This is an ordinary mate in two. But after you've solved it, the interesting question is... Is it possible for black to castle? What do you say?

19th April 2008, 03:29am
#2
by Memory-Infection
Singapore
Member Since: Jan 2008
Member Points: 49
Isn't it illegal for black to castle before white moves? The white queen is attacking the square in between the black king and rook. Though after 1.Qa1, black would have been able to castle.
19th April 2008, 08:42am
#3
by Jeremy80
Göteborg Sweden
Member Since: Mar 2008
Member Points: 74
At first it seems like you're right. After 1. Qa1 0-0-0, there is no mate in two anymore. But the question remains, after white plays Qa1, are black really ALLOWED to castle? Look carefully! Smile
19th April 2008, 09:07am
#4
by benws
United States
Member Since: Oct 2007
Member Points: 1178
No! the explanation is this: Black cannt defend by castling because his last move had to have been by his king or rook.
19th April 2008, 09:11am
#5
by Jeremy80
Göteborg Sweden
Member Since: Mar 2008
Member Points: 74
benws wrote: No! the explanation is this: Black cannt defend by castling because his last move had to have been by his king or rook.

Congrats! You solved the "mystery"! Wink


 
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