<div class='user_solution'><span class="MsoNormal" style="text-align:justify;display:block;"><b><span>1.Qe6! </span></b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span>try :</span></b><span><span>  </span>1.Rxg6 d2+ 2.Kxd2 Rb2+ 3.Ke1 Re3+ 4.Kf1 Rf3+ 5.Kg1 Rxf7 6.Qe6 Rg7!=</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span>1...d2+ 2.Kf2 d1N+! 3.Rgxd1 Rb2+ 4.Kg1 Rg3+ 5.Kh1 Qe7 </span></b><span>! <b>6.Nf6 Kg7! 7.Rf1 c5! 8.Rce1! Rgg2 </b></span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span>8...e4 9.Rxe4+-</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span>9.Qh3 Rgf2 </span></b></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span>9...Rh2+ 10.Qxh2 Rxh2+ 11.Kxh2 Qxf7 12.Nxh5 +-</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span>9...Qxf7 10.Nxh5+-</span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span> </span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><b><span>10.Nxh5+! Kxf7 11.Qg3 </span></b><span>+-<b> </b></span></span> <span class="MsoNormal" style="text-align:justify;display:block;"><span> </span></span> <p class="MsoNormal"><span> </span></p> <p class="MsoNormal"><b><span lang="ES"> </span></b></p></div>