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A very fine helpmate whose solutions contain an unexpected twist. Remember that in helpmates Black begins and
helps White to mate in the stipulated number of moves.
Remove the white king and White can mate by capturing queen or knight. It appears that all Black has to do is
unguard c6 or d6 to allow the king to move, then the knight will capture the other piece, however each king
move walks into a pin, and in unpinning Black guards the natural mating square. Hence Black must sacrifice on
his first move to ensure that the correct mating square is not guarded.
1.Sc6 Kxc6 2.Rf3 Se7 and 1.Qd6+ Kxd6 2.Re2 Sxf4.
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