Modern Defense: Bishop Attack, Monkey's Bum

1.e4 g6 2.Bc4 Bg7 3.Qf3 e6 4.d4 Bxd4

ECO B06

The Modern Defense: Bishop Attack, Monkey's Bum is a chess opening line in the Modern Defense complex, reached after 1.e4 g6 2.Bc4 Bg7 3.Qf3 e6 4.d4 Bxd4.

It is catalogued under code B06 in the Encyclopaedia of Chess Openings (ECO).

The defining move Bxd4 is chosen by Black on move 4.

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