1. d2d4  1... g8f6  2. g1f3  2... e7e6  3. c2c4  3... f8b4 The Bogo-Indian Defense is not very popular among the elite, but it's a great defense, especially for club-level players, as the plans are easier to understand than, for example, the Queen's Indian, one of the most positionally complex openings in chess.