<div class="user_solution"><strong>1.Bf3!  </strong><em>zz</em><strong>   1....Qb1+! </strong> (<em>1...d2 2.Qb3#; 1...Qh6 2.Qb2#)</em>  <strong>2.Qxb1+ Kc3  3.Qb2+ Kc4  4. Ka3! d2  5.Be4! Kc5  6.Qb4# - </strong><em>model mate</em><strong>.</strong></div><div class="user_solution"><strong></strong></div><div class="user_solution">1.Bg4? Qb1+! 2.Qxb1+ Kc3 3.Qb2+ Kc4 4.Be6+ Kc5! </div><br />