<div class="user_solution"><span style="text-align:justify;display:block;" class="MsoNormal"><b>1.Ng3! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">1.Qxc5? Qxc5 2.e8Q Qf2+ 3.Kg4 Qg2+ 4.Ng3 f5+! 5.Kxf5 Qf3+ 6.Ke6 Qb3+ 7.Ke7 Qb4+=</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>1...Rb5 2.Qd8! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">2.Qd4+? f6 3.Qd8 <i>(3.Qe4 Qe8=) </i>3...Qc4+ 4.Kf3 Qc6+ 5.Kf2 Re5 6.d4 Qc2+=</span> <span style="text-align:justify;display:block;" class="MsoNormal">2.Ke3? Ra5! 3.Ne4 Qh3+ 4.Ng3 Qc8 5.Qd8 Qe6+ 6.Kf3 Re5=</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>2...Qc4+ 3.Kf3! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">3.d4? Qc1+!=</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>3...Rb3+</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">3...Qc6+ 4.Kf2 Qf6+ 5.Kg2 Qc6+ 6.Kh2 Re5 7.Qf8+ <i>(7.d4? Re1=) </i>7...Kxg6 8.Qg8+ Kf6 9.Qh8+ Kxe7 10.Qxe5+-</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>4.Kg2 Qc6+ 5.Kh2 Qxg6</b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>main </b>5...Rxg3 6.e8N+! <i>(6.Kxg3? Qxg6+ 7.Kf4 Qh6+ 8.Ke4 Qh1+ 9.Kd4 Qa1+ 10.Kd5 Qa2+ 11.Ke5 Qa1+ 12.d4 Qe1+ 13.Kd5 Qh1+ 14.Kd6 Qh6+ 15.Kc5 Qc1+= </i>perpetual jaques<i>) </i>6...Kxg6 7.Kxg3+-</span> <span style="text-align:justify;display:block;" class="MsoNormal">5...Qf3 6.Qf8+ <i>(6.Qd4+? f6 7.d3 Rxd3 8.Qxd3 Qxd3 9.e8Q Qxg6) </i>6...Kxg6 7.Qg8+ Kh6 8.Qh8+ Kg6 9.Qe5+-</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>6.e8N+! Kh7 7.Nf6+ Kg7 8.Nfh5+ </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">8.Nfe4? Rb6 9.Qd5 Qh6+=</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>8...Kh7 9.Qh4 Rb5 </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">9...Qd6 10.Qg5 Qh6 11.Qf5 Qg6 12.Nf6+ Kg7 13.Ngh5+ Kh6 14.Ng4+ Kh7 15.Nhf6+ Kg7 16.Qc8+-</span> <span style="text-align:justify;display:block;" class="MsoNormal">9...Qh6 10.Qe4+ Qg6 11.Nf6 Kg7 12.Ngh5+ Kh6 13.Qh4 Qg5 14.Ng8+ Qxg8 <i>(14...Kg6 15.Nf4++-) </i>15.Nf6+-</span> <span style="text-align:justify;display:block;" class="MsoNormal"><br /></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>10.Nf6+ Kg7 11.Ngh5+</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">11.Ne8+? Kf8 12.Qh8+ Ke7 13.Nc7 Ra5=</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>11...Kf8 12.Nh7+ Kg8 </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">12...Ke8 13.N5f6+ Ke7 14.Ne4+ f6 <i>(14...Kd7 15.Nf8++- </i>Fork<i>) </i>15.Nhxf6+-</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>13.N5f6+ Kg7 14.Ne8+ Kg8 15.Nhf6+ Kf8 16.Nc7 Rb1 </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">16...Qd3 17.Qh6+-</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>17.Qh8+ Ke7 18.Ncd5+- </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><span style="font-size: 10pt; font-family: 'FigurineCB AriesSP';"> </span></span> <p class="MsoNormal"><span style="font-size: 10pt; font-family: 'FigurineCB AriesSP';"> </span></p> <p class="MsoNormal"> </p></div>