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Chess Problem-14

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23rd September 2009, 07:17am

#1

by sanjayd1998
Bangalore India

Member Since: Nov 2008
Member Points: 169

White to play and mate in four.

Hint:White would like to play Ra2+ followed by Qb4 mate, but the immediate 1 Ra2 fails to 1...Qxa2 pins White Queen. On the other hand, White has no time for the cautious 1 Kf8, because then Black can bail out with 1...Qb2!,which delays mate beyond the fourth move. White must remove his king from the a2-g8 diagonal with gain of tempo. How?

23rd September 2009, 12:39pm

#2

by baconisdelicious
St. Louis, MO United States

Member Since: May 2009
Member Points: 91

1 Kf8! and now black cannot check without giving white mate in one move - so it is mate in only two more, using the original idea.

The problem should be a mate in three.

23rd September 2009, 02:55pm

#3

by sdtmcn
Lyon France

Member Since: Jul 2009
Member Points: 175

Nice.

23rd September 2009, 08:17pm

#4

by sanjayd1998
Bangalore India

Member Since: Nov 2008
Member Points: 169

baconisdelicious wrote:

1 Kf8! and now black cannot check without giving white mate in one move - so it is mate in only two more, using the original idea.

The problem should be a mate in three.

If 1 Kf8 then 1...Qb2! delays the mate beyond the fourth move.

1.Kf8 Qb2! 2 Qc5+ Ka2 3 Qd5+ Ka1 4 Bxf5 Qa3+ 5 Kf7 Qf8+! 6 Kxf8 h5 7 Qa2#

and that is mate in seven. The problem is mate in four.

23rd September 2009, 10:39pm

#5

by dev13
New Zealand

Member Since: Apr 2009
Member Points: 29

It can be mate in 2 but as the Question was MATE IN FOUR

your idea was probably the best

And yeah I am from India as well

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