Cyklic shift of continuations between two phases and between the second and the third white moves in three variations.
Scheme of theme:
1.X a 2.A 3.B, 1…b 2.B 3.C, 1…c 2.C 3.A
1.Y a 2.B 3.A, 1…b 2.C 3.B, 1…c 2.A 3.C
Velimirovic, Milan
Die Schwalbe, 1986
1st Prize
FIDE Album 1986-88
mate in 3 moves
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