KQ6/3B4/k7/2B5/8/8/6p1/7b
Leonardo G. Perrone
Gaspar J. Perrone
feenschach, 1999
s#8
1.Dd6+ Ra5 2.Ab6+ Ra6 3.Aa7+ Ra5 4.Dc5+ Ra6 5.Ab5+ Ra5 6.Ac6+! Ra6 7.Ab8 g1=X 8.Ab7+ Axb7#
(6.Ab8? g1=C/T+? 7.Ac6+! Ra6 8.Ab7+ Axb7# pero 6. … g1=D/A+!)
Intercambio de casillas (Platzwechsel).