White to play and win
Stein v Liberzon, Erevan 1965
Solution
The first move is obvious, but the position depends on seeing the nice move further into the combination, one which produces a smile:
1 Qh6+ Bh6[] 2 Rh6+[] Kg7[]
3 Rh7+! Kf6[] 4 Rf8 mate. Pretty.