[blind-chess] Problem WAC001 Solution

From: "R Dinger" <rrdinger@xxxxxxxxxx>
To: "chess" <blind-chess@xxxxxxxxxxxxx>
Date: Wed, 26 May 2010 06:19:13 -0700

Good Morning Puzzlers,

This problem is from Mario Lang's puzzle web page at 
http://delysid.org:80/chess/epd.cgi

 and is reported to be from Fred Reinfield's book "Win At Chess" 1958.

Problem WAC001
--------------------------------------------------------------------------------

White to move

FEN Problem Setup:
2rr3k/
pp3pp1/
1nnqbN1p/
3pN3/
2pP4/
2P3Q1/
PPB4P/
R4RK1
 w - - 0 1

Short Algebraic Problem Setup:
White: Kg1, Qg3, Ra1, Rf1, Bc2, Ne5, Nf6, Pa2, Pb2, Pc3, Pd4, Ph2
Black: Kh8, Qd6, Rc8, Rd8, Be6, Nb6, Nc6, Pa7, Pb7, Pc4, Pd5, Pf7, Pg7, Ph6

The best move is: 1. Qg6

Principle:
The square g6 is the key to this problem.  White has two good mating prospects 
through g6:
1. Ng6# or
1. Qg6 followed by 2. Qh7#

But the F-Pawn guards the vital g6 square.  So the problem is how to remove 
that guard.  There are two choices:
1. Ng6+ fxg6 (forced)
2. Qg6 Bg8 and the Queen mate is foiled.
or:
1. Qg6 threatening mate at h7
1... fxg6 (removing that guard!)
2. Ng6#

[blind-chess] Problem WAC001 Solution

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