Chinese Championship: Yu leads, Tan wins
18.Kb1 Better than 18.b3 Qa3+ 18...Rxd1+ 19.Rxd1 Qxc4 20.Rc1 That was Whites idea. Black now has to live with an exposed king and shattered pawn structure. 20...Qa6 21.Bxc6 bxc6 22.Nxe5 Be6 23.b3 Bd5 24.Qf4 Another idea was 24.Nd3!? Rd8 25.Nc5 24...Re8 25.f3 Kb7?! Invites the white knight to settle down on c5 with check – and a possible fork. 25...Qb5!? with the idea Bxb3 offered better chances. 26.Nd7 Qd3+ 27.Rc2 27.Ka1?! Kc8 28.Nc5 Qe3= 27...Qb5 27...Qd1+ 28.Kb2 a5 29.Nc5+ Kb8 was a better ...
Source: chessbase.com