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A two-mover whose defences and mates illustrate a curious cyclic effect.
The solution will appear here on Friday 7th August.
The key, 1.Qh8, threatens 2.Qh6, and there are four variations: 1...Qh4 2.e3, 1...e3 2.Qd4, 1...Qd4 2.g3 and 1...g3 2.Qh4. The cyclic AB-BC-CD-DA effect of defences and mates using the same squares is enhanced in this example by the pieces being of the same type.
Jacob Hoover: You were right, a curious cyclic effect does happen here, and it's a jolly good one, too. My hat’s off to Mr. Stavrinides for a truly delightful problem.
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