Two white pieces A and B are pinned by a and b. In the first phase, a captures A giving check, the white King moves in such a way that B remains pinned, a unpins B moving on the white King initial square, then B moves. In the second phase, b captures B giving check, the white King moves in such a way that A remains pinned, b unpins A moving on the white King initial square, then A moves.
Sahs/Shakhmaty (Riga), 1965
Al Hamishmar, Israel Ring Tourney, 1964
V. Lastivka-55 JT, 2017
Problemist of Ukraine, 2007