EG No. 10637 Reprinted with permission.
S.Osintsev 1st place XI Russian Federation Team Championship 1992
Win

White: Kh8, Ne3; pawn - e7
Black: Ka2, Nd4, Bc1; pawns - c4, f3

1.Nd1/i Bb2 2.e8Q c3/ii 3.Qa4+/iii Kb1 4.Qxd4/iv f2 5.Qf6 f1Q 6.Qxf1 c2+ 7.Nc3 mate. 
i) 1.e8Q? Bxe3 2.Qxe3 Kb2 3.Qxd4 c3 draws. 
ii) Ne2+ 3.Kh7 c3 4.Qe4 f2 5.Qxe2 f1Q 6.Nxc3+ wins.
iii) 3.Qb8? Nc6 4.Qa8+ Kb1 5.Qxc6 c2+.