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Another gem by Austrian composer Stefan Schneider, combining clarity of idea with perfect economy of means.
With the bishop ready to mate at e6 or h7 the rook is tied to the squares e7 and f7, but stalemate makes it immune to capture. White’s other attempt at mating is by Se6, which sets up a new focus at d4 and g7, but after Black defends with Rd7 he is in a position to start checking the white king, so White must prepare to deal with that possibility, and does so by advancing his king to a safe square. Hence the solution 1.Ka2 Rf7 2.Ka3 Re7 3.Se6 Rd7 (3...Rxe6 4.Bh7) 4.Ka4 any 5.Sd4 or Sg7 as appropriate.
Dafydd Johnston: Delicate timing is required to shut down the rook’s options. A composition of memorable clarity.
Jacob Hoover: This was quite an interesting problem.
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