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Another teasing miniature. The fact that it won a prize promises something out of
Solution: 1.Ra8+ Kb6 2.c8Q fails to 2...Sc5+, after which there is no mate
in two. The solution is 1.Ra8+ Kb6 2.Ra6+! Kxa6, returning to the
initial position minus the rook. Now White mates in two by underpromoting:
3.c8S and after the knight moves 4.Sc5 is mate.
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