1.Nb5 [1.Rc6!? Bc5! 2.Rh6 Bxa7= ; 1.Rb1!? Kc4 2.Nb5 (2.Nc6 c2 3.Na5+ Kd3= ) 2...c2 3.Rh1 Kd3= ; 1.Rb5+!? Bc5!= ] 1...c2 2.Nc3+ Kc4! [2...Kd4 3.Na2 Bg5 4.Rc6 Kd3 5.Nb4++- ] 3.Na2 Bg5 [3...Bh4 4.Rb4++- ] 4.Rb7!! [Thematic try 4.Rb8!? Bd2! (4...Kd3!? 5.Rc8 Kd2 6.Rg8 Bf6 7.Rg2+ see the main line) 5.Rb7 Bg5! 6.Rb8 Bd2 positional draw; 4.Rb4+!? Kd3= ; 4.Rc6+!? Kb3!= (4...Kd3!? 5.Nb4++- ) ] 4...Kd3 [Main 4...Bd2 5.Rb8! Bg5 (5...Kd3!? 6.Rc8+- Bf4 ) 6.Ka5! (6.Rc8+!? Kb3= ) 6...Kd3 7.Rc8! Kd2 8.Rg8 and easy win: 8...Bf6 9.Rg2+ etc] 5.Rc7 Kd2 [5...Bd2 6.Kb5+- ] 6.Rg7 [6.Rd7+!? Ke2 7.Rc7 Kd2 8.Rg7 waste of time] 6...Bf6 7.Rg2+ Kd1 8.Rg1+ Ke2 9.Nb4 Kd2 10.Rg2+ win.