<div class='user_solution'><b><span style="font-size: 14pt; font-family: 'FigurineCB AriesSP';">1.Na6+! </span></b><span style="font-size: 14pt; font-family: 'FigurineCB AriesSP';">[1.Nd7+? Kc6! 2.b8Q Qd5+ 3.Qb3 Qxa5+ 4.Kb2 Qd2+ 5.Qc2+ Qxc2+ 6.Kxc2 Kxd7=; 1.Rc1+? Kb5 2.Nc6 Qe6+! 3.Kb2 Qf6+! 4.Kb1 Qf5+! 5.Rc2 Qf1+ 6.Kb2 Qf6+ 7.Rc3 Qf2+ 8.Kb3 Qf7+ 9.Ka3 Qxb7=] <b>1...Qxa6 2.Rc1+ </b>[2.b8Q? Qxa5+=] <b>2...Kd5 </b>[2...Kd4 3.b8Q Qxa5+ 4.Kb3! Qd5+ 5.Kb4+-] <b>3.b8Q </b>[3.Rd1+? Ke4 4.b8Q Qxa5+=] <b>3...Qxa5+ 4.Kb1! </b>[4.Kb3? Nf5!=] <b>4...Nf5 5.Rg1! </b>zz [5.Qg8+? Kd4! 6.Rc4+ <i>(6.Qc4+ Ke5!=) </i>6...Kd3!=] <b>5...Kc4! 6.Rf1! </b>[6.Rc1+? Kd3! 7.Qb3+ Kd4! 8.Rc4+ Ke5! 9.Qb8+ <i>(9.Qb2+ Kd5!=) </i>9...Nd6! 10.Qh8+ Ke6!=; 6.Rg4+? Nd4!=; 6.Qc8+? Kd3! 7.Qc2+ Ke3!=; 6.Qg8+? Kc3! 7.Rc1+ Kd4!=; 6.Qf4+? Kb3! 7.Qf3+ <i>(7.Qb8+ Qb4!=) </i>7...Qc3!=] <b>6...Ne3 </b>[6...Nd4 7.Rc1+ Kd3 8.Qg3++-] <b>7.Rf4+ </b>[7.Qf4+? Kd3! 8.Qd6+ Ke2!=] <b>7...Kd3 8.Qb3+ Ke2 </b>[8...Kd2 9.Rf2++-; 8...Qc3 9.Qb5+ Kd2 10.Rf2+ Ke1 11.Qe2#] <b>9.Qb2+ Qd2 </b>[9...Kd1 10.Rf2+-] <b>10.Rf2+! Kxf2 11.Qxd2+ </b>and wins. </span><div><span style="font-size: 14pt; font-family: 'FigurineCB AriesSP';"><br /></span></div><div><span style="font-size: 14pt; font-family: 'FigurineCB AriesSP';">Meredith. Sacrifice key. Reciprocal zugzwang.</span></div><br /></div>