It’s Your Move: daily chess puzzle # 66

Black to play and win

Sternberg v Pawelczak, Berlin 1964

Solution

Not too hard, because one of the two only moves to defend the Pd2 wins. 1…Nf3!, for if 2 Kg2, 2…Ne1+ forks the king and rook; whilst if White checks first, to move his rook away from the mined square, then Black plays Nd4, blocking white’s rook sight of the d2 pawn.