Archive 2014-2015 The Starter Problem
 
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The Starter Problem
Written by Brian Stephenson   

In this solution, the move that was required is given in bold type. All else is given for the sake of completeness and for the interest of solvers. Threats are given in parentheses. The symbol 'S' stands for knight.

John Rice

qs1B4/2rp4/p1b1p1p1/K1Q1rkS1/1p4p1/6P1/2R1pS2/1B6

Mate in 2

1.Sd1!       (2.Se3#)

1...Rxc5+    2.Rxc5#
1...d5       2.Qf2#
1...Rd5      2.Rxe2#
1...Bd5      2.Qf8#
1...exd1=any 2.Rf2#
1...e1=Q,R   2.Rf2#

There are the following ‘tries’, given by solvers, defeated as noted:

Claim Refutation(s)
1.Sf7? 1...g5!
1.Rc4+? 1...Be4!
1.Rxe2+? 1...Be4!
1.Qf8+? Illegal move! The wQ is pinned.
1.Rd2+? 1...Be4!
1.Sge4? 1...Rd5, g5, Bxe4, Rxc5+!
1.Sfe4? 1...Bxe4, Rd5, Rxc5+!
1.Qxe5+? 1...Kxe5!
1.Sd3? 1...Rxc5+!, e1=any!, d6!, d5!
 
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