<div class='user_solution'><div><font size="3"><b>1.Kc2! </b>[1.Nc4? Kxb1=; 1.e5? Nd7 2.e6 Nc5+=] <b>1...Nxe4! </b>[1...axb2 2.e5 Ng4 3.Ne4! Ne3+ 4.Kd3+-; 1...a2 2.Bxa2+- as main line] <b>2.Nc4! </b>[2.Nd3? or Nxe4? 2...a2 3.Bxa2 Kxa2=] <b>2...a2! </b>[2...Nxg3 3.Nd2 and 4.Nb3 mate] <b>3.Bxa2 </b>zz </font></div><div><font size="3"><b><br /></b></font></div><div><font size="3"><b>a) 3...Kxa2 4.Ne2!</b> zz <b>4...Nc3! 5.Nc1+ and wins,</b> for example 5.- Ka1 6.Nd2 Ne2 7.Jdb3 mate, </font></div><div><font size="3"><b><br /></b></font></div><div><font size="3"><b>b) 3...Nd2 </b>[3...Nxg3 4.Bb3 Ne2 5.Ba4 Ka2 6.Bd7 Nf4 7.Bg4 </font><span style="font-size: medium;">Nd5 8.Be6 Nc7 9.Bg8 Nb5 10.Nd6++-; 3...Nc3 4.Bb3 Ne2! 5.Ba4 </span><i style="font-size: medium;">(5.Nxe2? </i><span style="font-size: medium;">stalemate</span><i style="font-size: medium;">) </i><span style="font-size: medium;">5...Nxg3 6.Be8+-] </span><b style="font-size: medium;">4.Ne2!</b></div><div><font size="3"><b>  </b></font></div><div><font size="3"><b>b1) 4...Nb3 5.Nc3! </b>[5.Bxb3? stalemate; 5.Nc1? Nxc1=] <b>5...Nd4+ 6.Kd2 and wins,</b> for example 6.- Nb3+ 7.Kd1 Nc1 8.Bb1! Ne2 9.Bd3 Nxc3 10.Kc2 +-. [6.Kc1? Ne2+! 7.Kc2 Nxc3 8.Bb3 Nd5! 9.Ba4 Ka2=; 6.Kd3? Ne2! 7.Bb3 Nc1+=]</font></div><div><font size="3"><b>  </b></font></div><div><font size="3"><b>b2) 4...Nxc4 5.Bb3!</b> <i>(5.Bxc4? </i>stalemate<i>) </i><b>5...Na3+ 6.Kc1! and wins</b><i> (6.Kc3? Nb5+ 7.Kc2 Nd4+? 8.Nxd4 </i>stalemate<i>)</i> </font></div><div><font size="3"><br /></font></div><div><font size="3">Meredith. Zugzwangs. Mates. Stalemates.</font></div><br /></div>