<div class="user_solution"><span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">1.Kf2! </span></b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">1.Kg2? Nd2! =</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">1...Nc3 </span></b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">1...Nd2 2.Ke3+-</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">1...Kg7 2.g4 (ab) 2...Nc3 3.Kf3 (ba) 3...Kh6 <i>(3...Kf6 4.h6+-) </i>4.f6 Nd5 <i>(4...Nb5 5.Ke4 </i>/f4 <i>5...Nd6+ 6.Ke5 Nf7+ 7.Ke6 Ng5+ 8.Ke7+-) </i>5.g5+ Kxh5 6.f7+-</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">2.Kf3 Nd5 3.g4 Nf6 4.Kg3 Kf7 </span></b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">4...Kg7 5.Kh4 Nd5 6.Kg5 Kg8 <i>(6...Nc7 7.h6+ Kh7 8.Kh5 Nd5 9.g5 Nf4+ 10.Kg4 Nd5 11.Kf3 Nc3 12.Kf4+- </i>see main line<i>) </i>7.Kg6 Ne3 8.g5 Nd5 9.h6 Nf4+ 10.Kf6 Kh7 11.Ke7 Nh3 12.g6+ Kxh6 13.f6 Kxg6 14.f7+-</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">4...Ne4+ 5.Kf4 Nf2 6.g5 Nh3+ 7.Kg4+-</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">5.Kh4 Nd5 6.h6 Kg8 </span></b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">6...Ne3 7.Kh5 Kf6 8.g5+ Kxf5 9.h7+-</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">7.g5 Kh7 </span></b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">7...Ne7 8.Kg4 Kh7 9.Kf4+-      </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">8.Kh5 Nf4+ 9.Kg4 Nd5 10.Kf3 Nc3 11.Kf4 Nb5 12.Ke5 Nc3 13.Kd4! </span></b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">13.f6? Kg6 14.Ke6 Ne4 15.Ke7 Nxg5=</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">13...Nb5+ 14.Kd5 Nc3+ 15.Ke5 </span></b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">Zugzwang <b>15...Nb5 16.f6 </b></span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">16.Kf6? Nd6 17.Ke6 Ne4=</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">16...Kg6 17.Ke6 Nd4+ 18.Ke7 Nf5+</span></b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"><span> </span></span></b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">[or 18...Nc6+ 19.Kf8 Nd8 20.Kg8 Kxg5 21.h7+-] </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">19.Kf8 Nd6 20.Kg8 Nf7 21.h7 </span></b><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;">+-<b> </b></span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span style="font-size: 12pt; font-family: &quot;Times New Roman&quot;, serif;"> </span></span></div><br />