Saturday, January 28, 2012

White to play

White has a rook, bishop and passed pawn on b7 for the black queen. Black is planning exf3 followed by a queen check on the g-file or the first rank. White wants to promote the b-pawn and win material. After Be3xa7, there can follow 1...Qa5 2.Bxb8 Qxb4 3.Rd1 h6 4.Rd7 exf3 (threat Qb4-b1 mate) 5.h4 Qb1+ 6.Kh2 Qf1 (threat Qf1-g2 mate) 7.Kg3 Qg2+ 8.Kf4 Qh2+ 9.Kxf3 Qxb8, black keeps fighting. Does white have other options and ideas? (did you solve it? how quickly?)