1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. g2g3 A variation that is played from time to time by strong grandmasters as a way of escaping the more conventional theory. It doesn't promise an advantage for White, but a tense strategic battle appears on the board in a middlegame without so much theory. 3... g8f6  4. d2d3  4... f8c5  5. f1g2  5... d7d6  6. e1g1 