<div class="user_solution"><span style="text-align:justify;display:block;" class="MsoNormal"><b><u>1.b8Q</u>! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">1.Rxe7? Bd3! <i>(</i>not <i>1...Kd2? 2.b8Q Bd4 3.Qxb1 c2+ 4.Ka2 cxb1Q+ 5.Kxb1+-) </i>2.b8Q Bd4 3.Re1+ Kd2=</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>1...Bd3 2.Qh8</u>! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">2.Rb7? Bd4! 3.Qf8 c2+ 4.Ka2 Bc4+ 5.Rb3 e5!= <i>(</i>not <i>5...Bxb3+? 6.Kxb3 Kb1 7.Qh6–+) </i><span> </span><b><u>2...e5 3.Rb7</u>! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>Tries</b> :</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>a)</b> 3.Rf7? c2 4.Rxf3 Bd4+ 5.Ka2 Bc4+ 6.Rb3 Kd1 7.Qh1+ Kd2 8.c7 c1Q 9.Qxc1+ Kxc1 10.c8Q Kc2=</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>b)</b> 3.Qh1+? Kd2 4.Rb7 c2 5.Rb2 d4 6.Qxf3 Bf5 7.Rxc2+ Kxc2 8.c7 d3 9.Qxf5 gxf5 10.c8Q f4 11.Qb7 Kd2 12.Qf3 Kc2 13.Ka2 Bxf2 14.Qxf2+ d2=</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>3...Bd4 </u></b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>main 1 <u>:</u></b><u> 3...c2 4.Rb2</u>! <i>(4.Qh1+? Kd2= </i>similar a try b)<i>) </i><u>4...Bf5 5.c7 d4 6.c8Q Bxc8 7.Qxc8 d3 8.Qa6! Kd2 </u><i>(8...d2 9.Qc4 </i>/d3 <i>9...d1Q 10.Qc3 Bd4 11.Rb1# </i><b>mate</b><i>) </i><u>9.Qxa5</u>+! <b>Try in this line</b> : <i>9.Ka2? e4 10.Qxa5+ Ke2 11.Kb3 e3! 12.Qc3 exf2 13.Rxc2+ dxc2 14.Kxc2 f1N! 15.Qd3+ Kf2 16.Qxg6 Ke2=) </i><u>9...Ke2 10.Qa8</u>! <i>(10.Qa6? Bd4 11.Ka2 Bxb2 12.Kxb2 e4=) </i><u>10...Bxf2 11.Qe4+ Be3 12.Rxc2+ dxc2 13.Qxc2+ Ke1</u> <i>(13...Bd2 14.Kb2 f2 15.Qc4+ Ke1 16.Qe4+ Kd1 17.Qd3 Ke1 18.Kc2 f1N 19.Qxd6+-) </i><u>14.Qd3 Bd4+ 15.Kb1! f2 16.Kc2/c1 f1Q</u> <i>(16...f1N 17.Qxg6+-) </i><u>17.Qd2</u># <b>mate</b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>4.Qh1</u>+! </b>[4.c7? c2+ 5.Ka2 Bc4+ 6.Rb3 Kd2=)</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>4...Kd2 5.c7 c2</u>+ </b></span> <span style="text-align:justify;display:block;" class="MsoNormal">5...Bf5 6.Ka2 c2 7.Rb2 e4 8.Kb3 Bxb2 9.Qh6+ Kd1 10.Kxb2+-</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>6.Rb2! Ba6 7.Qg1</u>! (</b>7.Ka2? Bc4+ 8.Ka1 Ba6 9.Qg1 is loos of time)</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>7...Bc3 </u></b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>main 2 :</b> <u>7...e4 8.Qb1! Bxb2+ 9.Qxb2 Ke1</u> <i>(9...Kd1 10.Qd4+ Bd3 11.c8Q+-) </i><u>10.Qxc2 e3</u> <i>(10...Bc8 11.Kb2</i>/b1 <i>e3 12.fxe3 f2 13.Kc1</i>/c3+-<i>) </i><u>11.Qc6! Bc8</u> <i>(11...exf2 12.Qxa6) </i><u>12.Qe8! Kxf2 13.Qxc8 e2 14.Qe6/e8 e1Q+ 15.Qxe1+ Kxe1 16.c8Q</u>+-</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>8.Ka2 Bc4+ 9.Ka3 Ba6 10.Qa1</u>! </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"><b>Try :</b> 10.c8Q? Bxc8 11.Qg5+ Kd1 12.Qe3 Bb4+ 13.Ka2 c1N+! 14.Ka1 e4!=</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>10...Bb4</u>+ (</b>10...Bd4 11.Rxc2+ Kxc2 12.Qa2+ Kc1 13.Qxd5+-)</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>11.Rxb4 c1Q+ 12.Qxc1</u>+ (</b>12.Rb2+ Kd1 13.Qxc1+ Kxc1 14.Rb5 is loos of time)</span> <span style="text-align:justify;display:block;" class="MsoNormal"><b><u>12...Kxc1 13.Rb5! d4 14.Rxa5</u>!+- </b></span> <span style="text-align:justify;display:block;" class="MsoNormal"> </span></div>