This section deals with all variations after the moves 5.Bxf7+ Ke7 6.b4?!
The current status of this variation is that it can only be refuted in the 6...Nxb4 variation. All other moves allow white to equalize or obtain an advantage.
Three variations for black against 6.b4?!
A: 6...Nxb4!
This is the best move, white is now in trouble. This is the only way to challenge white's plan.
7.Bb3 Rf8 8.0-0 d6 9.Nf3 Bg4 10.d3 Qe8 11.Nbd2 Kd8 12.Rb1 Qg6 13.Kh1 Nh5 14.h3 Qh6 15.Nc4 Nf4 16.Bxf4 Rxf4 17.Ncd2 g5 and black has a significant advantage.
B: 6...Bxf2+
This is a second best move, but black acheives equality.
This section deals with all variations after the moves 5.Bxf7+ Ke7 6.b4?!
The current status of this variation is that it can only be refuted in the 6...Nxb4 variation. All other moves allow white to equalize or obtain an advantage.
Three variations for black against 6.b4?!
A: 6...Nxb4!
This is the best move, white is now in trouble. This is the only way to challenge white's plan.
7.Bb3 Rf8 8.0-0 d6 9.Nf3 Bg4 10.d3 Qe8 11.Nbd2 Kd8 12.Rb1 Qg6 13.Kh1 Nh5 14.h3 Qh6 15.Nc4 Nf4 16.Bxf4 Rxf4 17.Ncd2 g5 and black has a significant advantage.
B: 6...Bxf2+
This is a second best move, but black acheives equality.
7.Kxf2 h6 8.Bc4 hxg5 9.d3 g4 10.c3 Qe8 11.Ke1 Kd8 12.Qd2 Rh5 =
C: 6...Bxb4?
This move is the worst of the three. White will have a good advantage after this.
7.Bd5! Rf8 8.0-0 d6 9.c3 Ba5 10.d4 exd4 11.cxd4 h6 12.Nf3 Nxd5 13.exd5 Nb8 14.Bd2 Bb6 15.a4 a5 and white has a solid advantage.