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An excellent example of tries with a common theme.
Solution: 1.Sb4 threatening 2.Rd5 and giving the
variations 1...Sc7 2.Ba7; 1...Sb6 2.Qxb6; 1...Sf6 2.Qxf6;
1...Se7 2.Qh8; 1...e3 2.Rf4; 1...Rh5 2.e3; 1...Bc4 2.Rxc4 and
1...Rxd6 2.Qxd6. Each of the other seven moves of the key
piece fails because it either obstructs a mating square or closes a
line. 1.Sb6? Sc7!, 1.Sc7? Sb6!, 1.Se7? Sf6!, 1.Sdf6? Se7!,
1.Sf4? e3!, 1.Sde3? Rh5! and 1.Sc3? Bc4!.
Peter Niehoff: Knight tour, with seven tries.
Jacob Hoover notes that a clue to finding the solution is that all of the
thematic variations are set play.
Any comments or questions on this problem should be addressed to
Michael McDowell using the ‘Contact’ item in the menu on the left.