N°51 – Anatoly Vasylenko (Ukraine)

Section D2 – h#3
b) bRa8->d8
a) 1.Rxg2+ Rf3 2.Rg4 Rb3 3.O-O-O Rc2#
b) 1.Rh4+ g4 2.fxg3 e.p.+ Re2 3.g4 Rxe4#
Helledie-Thema with castling and en-passant.
Check, pin, unpin.