<div class='user_solution'><style> &lt;!-- /* Style Definitions */ p.MsoNormal, li.MsoNormal, div.MsoNormal {mso-style-unhide:no; mso-style-qformat:yes; mso-style-parent:&quot;&quot;; margin:0cm; margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:12.0pt; font-family:&quot;Times New Roman&quot;; mso-fareast-font-family:&quot;Times New Roman&quot;; mso-bidi-font-family:&quot;Times New Roman&quot;;} .MsoChpDefault {mso-style-type:export-only; mso-default-props:yes; font-size:10.0pt; mso-ansi-font-size:10.0pt; mso-bidi-font-size:10.0pt;} @page WordSection1 {size:595.0pt 842.0pt; margin:70.85pt 70.85pt 70.85pt 70.85pt; mso-header-margin:35.4pt; mso-footer-margin:35.4pt; mso-paper-source:0;} div.WordSection1 {page:WordSection1;} --&gt; </style> <span style="text-align:justify;display:block;" class="MsoNormal"><b>1.f7 Bf1+</b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>2.Ka7 Nd6!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>3.f8=Q(R) Nc8+ </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>4.Ka8!!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">4.Q(R)xc8+? Kxc8 5.Kb6 (5.h5 Bh3) 5…Kd8 (5…Bh3? 6.f6 Kd8 7.Kxc5=)<span>  </span>6.h5 Bh3 -+ or 6.f6 Be2 7.h5 Bxf3 -+</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>4…Ba6!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">4…Nb6+ 5.Ka7 Nc8+ 6.Ka8 repeats the moves. </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>5</b>.<b>Q(R)xc8+</b> <b>Bxc8!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">And not 5...Kxc8? 6.f6(h5) +- <br /></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>6.h5!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">6.f6? Kd6! (not 6…Kd8? 7.h5 d6 8.c4 Bf5 9.Kb7 = or 7…d5 8.h6 Bf5 9.Kb7 =) 7.Ka7 (7.Kb8 Ba6 -+) and, eg, 7…c4 8.Kb6 Ke6 9.h5 Kxf6 10.f4 d5 11.Kxc6 Be6 12.h6 Bg8 13.h7 Bxh7 14.Kxd5 Bg8+<span> </span>-+</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>6…d5</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">6…d6 7.f6 Kd8! (7…Kd7? 8.h6 +-) 8.h6 Bf5 9.Kb7 Kd7 10.c4 Bxc2 11.f7 Ke7 12.Kxc6 = </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>7.f6 Kd6</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">7…Kd8 8.h6 Bf5 9.Kb7 Kd7 10.f7 =</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>8.h6! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">8.Kb8? (8.f4? d4! -+) 8…Bf5! (8…Be6? 9.h6! =) 9.h6 Bxc2 -+</span> <span style="text-align:justify;display:block;" class="MsoNormal">8.Ka7? Bf5 9.Kb6 d4 10.f7 Ke7 11.Kxc5 dxc3 12.Kb4 Bxc2 13.Kxc3 Bd1 -+</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>8…Bf5</b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>9.Kb7</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">9.Kb8? d4 -+ ;</span> <span style="text-align:justify;display:block;" class="MsoNormal">9.f4? d4 -+  </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>9… c4!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">9…Bxc2 10.f7 Ke7 11.Kxc6 = </span> <span style="text-align:justify;display:block;" class="MsoNormal">9…d4 10.f7 Ke7 11.Kxc6 =</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>10.f7 </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">10.f4? d4 11.cxd4 Bxc2 12.f7 Ke7 13.Kxc6 c3 14.d5 Kxf7 15.d6 Be4+ -+</span> <span style="text-align:justify;display:block;" class="MsoNormal">10.Kb6? Bxc2 11.f7 Ke7 12.Kxc6 Bd3 13.f4 Kg6 14.f5+ Kxh6 -+</span> <span style="text-align:justify;display:block;" class="MsoNormal">10.h6? d4 11.f7 Ke7 12.cxd4 Bxc2 13.Kxc6 c3 14.d5 Ba4+ -+</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>10…Ke7</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">Moves 9.Kb7 and 10.f7 can be inverted. </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>11.Kxc6</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">11.f8=Q+? Kxf8 12.Kxc6 Be4(Bc2) -+</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>11… Kxf7</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">11….Bxc2 12.Kxd5 Bd3 13.h7 =</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>12.Kxd5 </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">Now 12…Be6+ 13.Ke5(d6) = but not 13.Kd4? Kg6! -+</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>12…Bd3!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>13.f4!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">Not 13.Kd4? (of course, not 13.cxd3?? cxd3 -+) 13…Bf1(e2) -+<br /></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>13…Kg6</b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>14.f5+! Kxh6</b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>15.f6 </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">15.Ke6? Bxc2 or 15.Kd4? Kg5 -+</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>15…Kh7!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">If 15…Be2 (15…Kg6? 16.Ke6! +-), then 16.Ke6! Bh5 17.Ke7! (not 17.Kd5? Bf7+ -+) 17…Kg5 18.f7 Bxf7 19.Kxf7 Kf5 =</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>16.cxd3!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">16.Ke6? Bg6! 17.f7 Kg7-+<span>  </span>or 17.Kd5 Bf7 -+</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>16…cxd3</b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>17.Ke6 </b>and White draws.</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <p class="MsoNormal"> </p></div>