<div class='user_solution'><p>1.Bb3? threat: 2.Bxd5 threat: 3.Sf4#/Bg2#/Be6# but: 1...hxg6! </p> <p><br /></p> <p><b> 1.c4!</b> threat: 2.Bd1 threat: 3.Bg4# </p><p><br /></p> <p> </p> <p>   <b>1...hxg6 2.cxd5</b> threat: 3.Bd1 threat: 4.Bg4# </p> <p>                  2...Ra1/Rxa3/b5 3.Bd1 e2 4.Bxe2 <span style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">~</span> 5.Bf1#/Bg4# </p> <p>                  <b>2...e2 3.dxc6 </b></p> <p>                             <b>3...<span style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">~</span> 4.c7 <span style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">~</span> 5.c8=Q/B# </b></p> <p>                             3...Rxa3 4.c7 Rc3 5.Bd7# </p> <p>                             3...bxc6 4.Bxc6 <span style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">~</span> 5.Bg2#/Bd7# </p> <p>                                            4.Bb3 <span style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">~</span> 5.Be6# </p><p><br /></p> <p> </p> <p> <b> 1...e2 2.cxd5 hxg6 3.dxc6 </b></p> <p>                                    <b>3...<span style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">~</span> 4.c7 <span style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">~</span> 5.c8=Q/B# </b></p> <p>                                    3...Rxa3 4.c7 Rc3 5.Bd7# </p> <p>                                    3...bxc6 4.Bxc6 <span style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">~</span> 5.Bg2#/Bd7# </p> <p>                                                   4.Bb3 <span style="font-family: &quot;Times New Roman&quot;; font-size: 10pt;">~</span> 5.Be6# </p> <p><br /></p> <p>Excelsior</p></div>