In a position where both sides seem to be attacking, the turn to move can be priceless. If it were White’s turn, then 1.b5 means that losing is out of the question. But it’s Black’s turn, and that makes all the difference.
2.Bxh3 Rxh2+! 3.Kxh2 Qg3+ 4.Kh1 Qxh3 mate!
A delicious retreating move that ends all hope. Black plans to move the rook to g8 to provide back-up for a monstrous queen sacrifice.
Too little, too late. Nothing could be done about the inevitable bomb that is about to explode in White’s camp.
Stopping the queen sacrifice on g1. Trying to bail out with 4.Qxb7+ Qxb7 5.Bxb7 Kxb7 will eventually lose as the Black f-pawn will impudently march forward to f2 followed by the rook dropping the hammer on g1.
4…Qg2+! 5.Bxg2 hxg2 mate!