<font class="Apple-style-span" size="3">1<span lang="EN-US">.Sb5 </span>?  <span lang="EN-US">Qg7 =<br /> </span></font><br /> <span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"> </font><br /> </span><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><b><span lang="EN-US">1.Ra1! Qg7 <span lang="EN-US">(1...Ka5 2.Bc7+ Ka6  3.Sxc5+ Ka7  4.Sb5#)<u><br /> </u></span></span></b><span lang="EN-US">(1...Ka5 2.Bc7+ Ka6  3.Sxc5+ Ka7  4.Sb5#)<u><br /> </u></span></font></span><span lang="EN-US">(1...Ka5 2.Bc7+ Ka6  3.Sxc5+ Ka7  4.Sb5#)<u><br /> </u></span> <span style="text-align:justify;display:block;"><b><span lang="EN-US"><font class="Apple-style-span" size="3"> </font><br /> </span></b></span><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><span lang="EN-US"><b>2.Sb1+ </b>(<b> </b><span lang="EN-US">2.Sb5? Q:a1 =)</span><b><span lang="EN-US"> </span></b><b><span lang="EN-US"> Q:a1</span></b><b><span lang="EN-US"> </span></b></span></font></span><span lang="EN-US">2.Sb5? Q:a1 =)</span><b><span lang="EN-US"> </span></b><b><span lang="EN-US"> Q:a1</span></b><b><span lang="EN-US"> </span></b><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><b><span lang="EN-US"><b><span lang="EN-US"> </span></b></span></b><b><span lang="EN-US"> </span></b></font></span><b><span lang="EN-US"> </span></b><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><b><span lang="EN-US"><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">3.Sxc5+</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">   </span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">К</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">a5 </span></b></span></span></b></font></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">3.Sxc5+</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">   </span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">К</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">a5 </span></b></span><span style="text-align:justify;display:block;"><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US"> </span></b></span></span><span style="text-align:justify;display:block;"><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US"></span></b><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">4.B</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">c7+</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">   R</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">b6</span></b></span></span></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">4.B</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">c7+</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">   R</span></b></span><span class="Apple-style-span" style="FONT-SIZE: medium"><b><span lang="EN-US">b6</span></b></span> <span style="text-align:justify;display:block;"><span lang="EN-US"><font class="Apple-style-span" size="3"> </font><br /> </span></span><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><b><span lang="EN-US">5.Sd2<b><span lang="EN-US">!!</span></b><span lang="EN-US"> (<b>-</b></span><span lang="EN-US"> 6.Sb3# with pin of BR</span><span lang="EN-US">)</span><b><span lang="EN-US">   Qa3  </span></b><span lang="EN-US">(5. ..Qc3+ 6.Kxc3 +/-)</span><u><span lang="EN-US"><br /> </span></u></span></b><b><span lang="EN-US">!!</span></b><span lang="EN-US"> (<b>-</b></span><span lang="EN-US"> 6.Sb3# with pin of BR</span><span lang="EN-US">)</span><b><span lang="EN-US">   Qa3  </span></b><span lang="EN-US">(5. ..Qc3+ 6.Kxc3 +/-)</span><u><span lang="EN-US"><br /> </span></u></font></span><b><span lang="EN-US">!!</span></b><span lang="EN-US"> (<b>-</b></span><span lang="EN-US"> 6.Sb3# with pin of BR</span><span lang="EN-US">)</span><b><span lang="EN-US">   Qa3  </span></b><span lang="EN-US">(5. ..Qc3+ 6.Kxc3 +/-)</span><u><span lang="EN-US"><br /> </span></u> <span style="text-align:justify;display:block;"><span lang="EN-US"><font class="Apple-style-span" size="3"> </font><br /> </span></span><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><b><span lang="EN-US">6.<b><span lang="EN-US">К</span></b><b><span lang="EN-US">db3+</span></b><b><span lang="EN-US">  Qx</span></b><b><span lang="EN-US">:b3</span></b><u><span lang="EN-US"><br /> </span></u></span></b><b><span lang="EN-US">К</span></b><b><span lang="EN-US">db3+</span></b><b><span lang="EN-US">  Qx</span></b><b><span lang="EN-US">:b3</span></b><u><span lang="EN-US"><br /> </span></u></font></span><b><span lang="EN-US">К</span></b><b><span lang="EN-US">db3+</span></b><b><span lang="EN-US">  Qx</span></b><b><span lang="EN-US">:b3</span></b><u><span lang="EN-US"><br /> </span></u> <span style="text-align:justify;display:block;"><span lang="EN-US"><font class="Apple-style-span" size="3"> </font><br /> </span></span><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><b><span lang="EN-US">7.c:b3<b><span lang="EN-US">(</span></b><b><span lang="EN-US">- 8.b4 # with pin of BR</span></b><span lang="EN-US"><b>)</b><span style="FONT-WEIGHT: bold">  </span><b>Sa6</b><span style="FONT-WEIGHT: bold">  </span>(</span><span lang="EN-US">7. ..Sc6  8.Sd7 +/-)</span><b><span lang="EN-US"><br /> </span></b></span></b><b><span lang="EN-US">(</span></b><b><span lang="EN-US">- 8.b4 # with pin of BR</span></b><span lang="EN-US"><b>)</b><span style="FONT-WEIGHT: bold">  </span><b>Sa6</b><span style="FONT-WEIGHT: bold">  </span>(</span><span lang="EN-US">7. ..Sc6  8.Sd7 +/-)</span><b><span lang="EN-US"><br /> </span></b></font></span><b><span lang="EN-US">(</span></b><b><span lang="EN-US">- 8.b4 # with pin of BR</span></b><span lang="EN-US"><b>)</b><span style="FONT-WEIGHT: bold">  </span><b>Sa6</b><span style="FONT-WEIGHT: bold">  </span>(</span><span lang="EN-US">7. ..Sc6  8.Sd7 +/-)</span><b><span lang="EN-US"><br /> </span></b> <span style="text-align:justify;display:block;"><b><span lang="EN-US"><font class="Apple-style-span" size="3"> </font><br /> </span></b></span><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><b><span lang="EN-US">8.Sb7 #<b><span lang="EN-US">  ideal mate with pin of BR and one active self-block) </span></b></span></b><b><span lang="EN-US">  ideal mate with pin of BR and one active self-block) </span></b></font></span><b><span lang="EN-US">  ideal mate with pin of BR and one active self-block) </span></b><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><b><span lang="EN-US"><br /> </span></b></font></span><span style="text-align:justify;display:block;"><font class="Apple-style-span" size="3"><b><span lang="EN-US"><span lang="EN-US">but no 8.Bd8? Sc7! </span><span class="Apple-style-span" style="LINE-HEIGHT: 13px; FONT-SIZE: medium">9.Bxc7 = pat</span></span></b><span lang="EN-US">but no 8.Bd8? Sc7! </span></font></span><span lang="EN-US">but no 8.Bd8? Sc7! </span><span class="Apple-style-span" style="LINE-HEIGHT: 13px; FONT-SIZE: medium">9.Bxc7 = pat</span><br />