<div class='user_solution'><b><span style="font-size: 14pt; font-family: 'FigurineCB AriesSP';">1.Nf5+ Qxf5 2.Rh2+! </span></b><span style="font-size: 14pt; font-family: 'FigurineCB AriesSP';">refusal of capture of queen [2.Rxf5? Rxb8 3.Rf8 Rc7=] <b>2...Qh3 3.Rxh3+ </b>[3.g8Q? Ra1+=] <b>3...Kxh3 4.g8Q Ra1+ 5.Kb3 </b>white king runs to oposite corner <b>5...Rab1+ 6.Ka4 Ra1+ 7.Kb5 Rab1+ 8.Ka6 Ra1+ 9.Kb7 Rab1+ 10.Ka8 Ra1+ 11.Ba7 </b>after systematic movement checks exhaust <b>11...Rcb1 </b>now only queen can move <b>12.Qg5 </b>tempo <b>12...Kh2 13.Qg4 </b>tempo and wins (EGTB) cause prison for white king and bishop ends. For example 13.- Re1 (13.- Kh1 14.Qh3 mate) 14. Qh4+ Kg2 15.Kb7 Rab1+ 16.Kc6 Rbc1+ 17.Bc5 Red1 18.Qg4+ +-</span></div>