<div class='user_solution'><strong>1.Nh3! </strong>(1.Nxg3+? Kg2! 2.Nh3 Kxh3 -+) <strong>1...Nxe4 </strong>(1...Kg2 2.Nxf2!=; 1...f1Q 2.Nxg3+ =) <strong>2.Ne3 f1Q</strong> (2...Bb7 3.Bxe4+ Bxe4 4.Nxf2+ =; 2...Be7+ 3.Kb2 f1Q 4.Rxf1 Nxf1 5.c4! - main line) <strong>3.Nxf1 Nxf1 4.c4!! </strong>(Logical try: 4.Bxe4+? Bxe4 5.Nf2+ Kg2 6.Nxe4 Be7+! 7.Kb3 Kf3! -+, no 8.Nc3?? because w.p.on c3) <strong>4...Be7+ 5.Kb2! </strong>(5.Kb3? Nc5+ -+;<strong> </strong>5.Ka2?<strong> </strong>Bxc4+ -+) <strong>5...Bf6+ 6.Ka3!</strong> (6.Kc1? Kh2 7.cd Nfg3! 8.Nf4 Bg5 -+; 6.Kb1? Ned2+ 7.Kc2 Bxc4 -+) <strong>6...Be7+ 7.Kb2 Bb7</strong> (7...Bf6+ 8.Ka3 - positional draw) <strong>8.Bxe4+ Bxe4 9.Nf2+ Kg2 10.Nxe4 Kf3 11.Nc3!</strong> (w.p. on c4), draw</div>