<div class='user_solution'><span style="text-align:justify;display:block;" class="MsoNormal"><b><u>1.Na5</u>+!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">Try : 1.Nc5+? Kb2 2.Rd1 Kc2 3.a4 Rb8= <i>(</i>Not <i>3...Rxb4? 4.Rc1+ Kxc1 5.Nxd3+)</i></span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>1...Kb2 2.Rd1 Rxa5! 3.bxa5 Kc2 4.a6</u>! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">4.a4? a6 5.Ra1 Kb2 6.Kf2 Kxa1 7.Ke3 Kb2 8.Kxd3 Kb3=</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>4...c6</u>!</b></span> <span style="text-align:justify;display:block;" class="MsoNormal">4...c5 5.a4 c4 6.a5+-</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>5.Ra1</u></b></span> <span style="text-align:justify;display:block;" class="MsoNormal">Try : 5.a4 c5 zz 6.a5 c4 7.Ra1 Kb2 8.Ra4 Kb3=</span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span> <span style="text-align:justify;display:block;" class="MsoNormal"><span> </span><b><u>5...Kb2 6.Kf2 Kxa1 7.Ke3 Kb2 8.Kxd3</u>+- </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span></div>