It was back in the 1920s that the Russian master Benjamin Blumenfeld invented his famous gambit 1.d4 Nf6 2.c4 e6 3.Nf3 c5 4.d5 b5!?, and to the present day the opening retains great popularity. Black plays for the initiative and the win from the word go. It’s all about the centre. Who will be the first to dominate this important area of the board? A fierce, immediate fight breaks out, and if either player does not know what to do, a crushing defeat could be the result. This opening is ideal for club and tournament players.