<div class='user_solution'><span style="text-align:justify;display:block;" class="MsoNormal"><b>1.Qa4! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>Try:</b> 1.Qd5? Kb1 2.Qc4 Nf5 3.Kb3 Ne3 4.Qxd4 Kc1 5.Qxe3+ Kd1 6.Kc3 b1N+!</span> <span style="text-align:justify;display:block;" class="MsoNormal">1.Qc4? b1N+!</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>1...Nf5 2.Kb3+ Kb1 3.Qb4! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">3.Qa5? Bc3! 4.Qxc3 Nd4+! 5.Qxd4 Kc1!</span> <span style="text-align:justify;display:block;" class="MsoNormal">3.Qc4? Ne3! similar to try</span> <span style="text-align:justify;display:block;" class="MsoNormal">3.Qc6? Ng3! 4.Qg6+ Ka1! 5.Qa6+ Kb1 6.Qd3+ Ka1 7.Qxd4 Ne2 8.Qxb2#</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>With two lines </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b> </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>a) 3...Bf2 4.Qe4+ Ka1 5.Qa8+ Kb1 6.Qh1+ Bg1 </b>[6...Be1 7.Qxe1#] <b>7.Qxg1# </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b> </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>b) 3...Be3 4.Qe1+!</b> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><i>4.Qe4+? Ka1 5.Qa8+ Kb1 6.Qh1+ Bc1</i></span> <span style="text-align:justify;display:block;" class="MsoNormal"><i> </i></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>4...Bc1 5.Qe4+ Ka1 6.Qa8/a4 .Kb1 7.Qa2#</b></span></div>