1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. d2d4  3... e5d4  4. f3d4  4... f8b4 This move also has considerable theory, but is played much less often than the two main lines with 4...Bc5 and 4...Nf6. 5. c2c3  5... b4c5  6. d4f5 [%c_effect f5;square;f5;type;Mistake;persistent;true] 6... d7d6 [%c_effect d6;square;d6;type;Interesting;persistent;true] Black already has several interesting options. 7. f5g7  7... e8f8  8. g7h5  8... d8h4  9. h5g3  9... g8f6 Black sacrificed a pawn and has the king in the center but achieved a big advantage in development. 10. f1e2  10... c6e5  11. f2f3  11... h8g8  12. e1d2 [%c_effect d2;square;d2;type;GreatFind;persistent;true] The only move $1 It seems almost impossible to play like this, but it was chosen using the method of elimination. No other move is able to avoid ...Rxg3. 12... c8e6 Believe it or not, this is the first new move of the game.