<div class='user_solution'><p class="MsoNormal"><b>Solution Diag . A</b></p> <span class="MsoNormal" style="text-align:justify;display:block;"><b>1.Nc3! (the trial in twin b)</b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b>Try Thematic</b>: 1.Nd2?( the key in twin b) exf2 2.Ndf1 Rh6 3.e3+ Kd3 4.Bd5 Kc2!³</span> <span class="MsoNormal" style="text-align:justify;display:block;"> </span> <span class="MsoNormal" style="text-align:justify;display:block;"><b>1...exf2 2.Nf1 Rh6 3.Bd5 Bg6 </b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b>main</b> 3...Bf5 4.Bh1!! <i>(4.Ba2? Re6–+) </i>4...Re6 5.Nxb5#</span> <span class="MsoNormal" style="text-align:justify;display:block;"> </span> <span class="MsoNormal" style="text-align:justify;display:block;"><b>4.Ba2 Bc2 5.e3+ Kd3 6.Bd5 h2 </b></span> <span class="MsoNormal" style="text-align:justify;display:block;">6...Re6 7.Bxe6 g3 8.Bf5#</span> <span class="MsoNormal" style="text-align:justify;display:block;"> </span> <span class="MsoNormal" style="text-align:justify;display:block;"><b>7.Be4# <br /></b></span><span class="MsoNormal" style="text-align:justify;display:block;"><b><br /></b></span><span class="MsoNormal" style="text-align:justify;display:block;"><b>-----------------------------------------------------------------------</b></span><span class="MsoNormal" style="text-align:justify;display:block;"><b><br /></b></span><span class="MsoNormal" style="text-align:justify;display:block;"><br /></span><span class="MsoNormal" style="text-align:justify;display:block;"> <p class="MsoNormal"><b>Solution Diag . B</b></p> <p class="MsoNormal"><b> </b></p> <span class="MsoNormal" style="text-align:justify;display:block;"><b>1.Nd2! (the trial in twin a)</b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b>Try Thematic:</b> 1.Nc3? (the key in twin a) exf2 2.Nf1 f5! <i>(2...Bf5? 3.Ba2+-) </i>3.Bg6 <i>(3.Be6 Rh5–+) </i>3...Be4 4.Nxb5+ Kd5 5.Bf7+ Kc6 6.Be8+ Kd5=</span> <span class="MsoNormal" style="text-align:justify;display:block;"> </span> <span class="MsoNormal" style="text-align:justify;display:block;"><b>1...exf2 2.Ndf1 f5 3.Be6 Be4 4.Ba2 Bc2 5.e3+ Kd3 6.Be6 Rh5 7.Bd7! </b></span> <span class="MsoNormal" style="text-align:justify;display:block;">7.Nxh5? Ke2 8.Nhg3+ Ke1 9.Bd7 Bd3 10.Bxb5 Bxf1 11.Nxf1 g3! 12.Nxg3 h2 13.e4 f1Q 14.Bxf1 Kf2=</span> <span class="MsoNormal" style="text-align:justify;display:block;"> </span> <span class="MsoNormal" style="text-align:justify;display:block;"><b>7...Ba4 8.Nxh5 Ke2 9.Nhg3+- </b></span> </span></div>