<p><span lang="EN-US">1.Rhb2! [ 1.Rab2? Qa7+-+; 1.Rh7? Qa7+-+]  </span><span lang="EN-US"><span lang="EN-US">1...Ka7 [ 1...Na7 2.Ka6! ( 2.Nd8? Qxd8+ 3.Kb4 Qd4+ 4.Kb3 Qd3+-+) 2...Nc6 3.Na5! </span>Nb4+ 4.Rxb4 Qxb4 5.Rc2!=]  </span><span lang="EN-US"><span lang="EN-US">2.Nd8 Qxd8+ 3.Kb4+! Kb7 4.Ra3! Nb6 [ 4...Qd4+ 5.Kb3=;  4...Qd6+ 5.Kc3+ Kc7 6.Rab3 Qe5+ 7.Kc2 Nd6 8.Rc3+=]  </span></span><span lang="EN-US"><span lang="EN-US"><span lang="EN-US"><font color="#3366ff" face="Arial"><span style="font-size: 9pt;">5.Kc3! Kc6 </span></font>[ 5...Qc7+ 6.Kd2 Qf4+ 7.Kc2 Kc6 8.Rc3+=]  6.Kc2! Nc4 7.Rd3 Qa5 8.Rbb3 Qa2+ 9.Kc1 Qe2 10.Rbc3 Kc5 <span lang="EN-US">11.Rb3 Qf1+12.Kc2 Qe1 13.Rbc3 Qe2+ 14.Kc1 Qb2+ 15.Kd1 Qf2 16.Kc1 positional draw, or 16...Kb4 17.Rb3+ Kc5 18.Rbc3 positional draw (Author)</span></span></span></span></p>