<div class='user_solution'><p></p><p><font size="3"><b>1.Rxd7! </b>[1.Rb6? Ba4+ 2.Kxa4 c2 3.Rh6 Nf2–+] <b>1...Ba4+! </b>[1...Bxd7 2.Bxc3 Nxc5+</font></p> <p><font size="3"><i>(2...a4+ 3.Kb4 Ke2 4.b3=) </i>3.Kc4 Nb7 4.a4 Bxa4 5.b4=; 1...Nxc5+ 2.Kxc3 Nxd7 3.a4</font></p> <p><font size="3">Bxa4 4.b4=] <b>2.Kxa4 c2 3.Rh7! </b>[3.Rf7+? Kg2 4.Rg7+ Ng3 5.c6 c1Q 6.c7 Qc6+ 7.Kxa5</font></p> <p><font size="3">Kf3 8.Rh7 Nf5 9.Be5 Ke4 10.Bh2 Nd4 11.Rh5 Qb7 12.Ka4 Kd3 13.Rh3+ Ke2 14.Rh5</font></p> <p><font size="3">Kd2 15.Rg5 Kd3 16.Rg3+ Ke4 17.Rg5 Nc6–+] <b>3...Kg2 </b>[3...Ng3 4.c6 c1Q 5.c7 Qc4+</font></p> <p><font size="3">6.Kxa5 Qc5+ 7.Ka6 Qc6+ 8.Ka5 Nf5 9.Be5 Ke2 10.b4 Ne3 11.b5 Qc5 12.Ka6 Nd5</font></p> <p><font size="3">13.Rh6 Qc4 14.Ka5 Nxc7 15.Bxc7 Qxc7+ 16.b6=; 3...Nf2 4.c6 c1Q 5.c7=] <b>4.Rh2+!</b></font></p> <p><font size="3"><b>Kxh2 5.Be5+ Kg2 6.Bf4 Nxc5+ 7.Kb5! </b>[7.Kxa5? Kf3 8.Bh6 Ke2 9.b4 Nb3+ 10.Ka6</font></p> <p><font size="3">Nd2–+] <b>7...Nd3! </b>[7...Kf3 8.Bc1! Nd3 9.Kc4! Nxc1 10.Kc3 Ke4 11.Kxc2 Nd3 12.Kb3=]</font></p> <p><font size="3"><b>8.Bd2! </b>[8.Bh6? Kf3 9.Bd2 Ke2 10.Bh6 Kd1–+] <b>8...Nxb2 9.Bc1! Nd3 10.Bd2 </b>switchback</font></p> <p><font size="3"><b>10...Kf2 11.Kxa5 </b>[11.Kc4? Ke2 12.Kc3 c1Q+ 13.Bxc1 Nxc1 14.Kc4 Kd2 15.Kb5 Nb3</font></p> <p><font size="3">16.Ka4 Kc3–+] <b>11...Ke2 12.Bh6! </b>[12.Bg5? Kd1 13.Ka4 Nf2 14.Kb3 Ne4–+]</font></p> <p> </p> <p><b><font size="3"><br /></font></b></p><p><font size="3"><b>a) 12...Nc5 13.Kb4 </b><i>(13.Kb5? Nb3–+) </i><b>13...Ne4 14.Bc1 </b>switchback <b>14...Kd1 15.Bb2 </b><b>draw,</b></font></p> <p> </p> <p><b><font size="3"><br /></font></b></p><p><b><font size="3">b) 12...Kd1 13.Kb5! Nf2 14.Kc4 Ne4 15.Kd3 draw.</font></b></p> <p> </p> <p><font size="3"><br /></font></p><p><font size="3">Meredith. Sacrifices on both sides.</font></p><p></p></div>