A black piece gives check and unpins a white piece which defeats the check giving check.
See also: Authier theme.
Visserman, Eeltje
Al Hamishmar, Israel Ring Tourney, 1964
6th Prize
a) 1.Bxd5+ Kxd6 2.Be6+ Bxd3# b) 1.Rxg6+ Kf7 2.Re6+ Rxh5#
FEN: 8/3PP1pp/3pK1Br/1p1R3q/2b5/1p1r1pQ1/8/5k2
External links: