<div class='user_solution'><p class="MsoNormal"><b><span lang="EN-GB">1.f6+ Kd6 </span></b></p> <p class="MsoNormal"><b><span lang="EN-GB">2.f7 Rxg5+ </span></b></p> <p class="MsoNormal"><b><span lang="EN-GB">3.Kf6 Rf5+! </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[3...Bxg2 4.f8Q++-; </span></p> <p class="MsoNormal"><span lang="EN-GB">3...Rg6+ 4.Kxg6 Be8 5.Ne4+ Kxc7 6.Bxe5++-] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">4.Kxf5 Ke7 5.Rb2 </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[5.Kg6? Bxg2 6.Kg7 Qf1=] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">5...Qc4! </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[5...Qf1+ 6.Rf2 Qh3 7.Kg5! Bf3 8.Nxe5 Qg3+ 9.Kf5 Qxf2 10.Ncd3+-; </span></p> <p class="MsoNormal"><span lang="EN-GB">5...Qxc5 6.Bb4+-] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">6.f8Q+! Kxf8 </span></b></p> <p class="MsoNormal"><b><span lang="EN-GB">7.Ne6+ </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[7.Rb8+ Ke7=] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">7...Ke8 </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[7...Ke7 8.Bb4+ Kf7 9.Nxe5++-] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">8.Rb8+ </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[8.Ng7+ Kf8 9.Ne6+ <i>(9.Rb8+ Kxg7=) </i>9...Ke8] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">8...Nc8! </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[8...Ke7 9.Bb4+ Qxb4 10.Rxb4+-] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">9.Rxc8+ Ke7 10.Re8+! </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[10.Bb4+? Qxb4 11.Re8+ Bxe8 12.c8N+?? <i>(12.c8Q=) </i>Kd7–+ </span></p> <p class="MsoNormal"><i><span lang="EN-GB">(12...Kf7?? 13.Nh6#) </span></i><span lang="EN-GB">] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">10...Bxe8 </span></b></p> <p class="MsoNormal"><b><span lang="EN-GB">11.c8N+! </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[11.c8Q?? Bg6+!–+] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">11...Qxc8 </span></b></p> <p class="MsoNormal"><b><span lang="EN-GB">12.Bb4+ Kd7 </span></b></p> <p class="MsoNormal"><span lang="EN-GB">[12...Kf7 13.Nh6# echo mate with self-block] </span></p> <p class="MsoNormal"><b><span lang="EN-GB">13.Nxe5# </span></b><span lang="EN-GB">ideal mate with two self-blocks</span><span lang="EN-GB"></span></p></div>