context: 1. c2c4  1... d7d5 A risky move, since the queen will be exposed. 2. c4d5  2... d8d5  3. g1f3  3... c7c5  4. e1c2 A creative positional idea. That knight goes to e3, and White wants to play d2-d4 later. The pawn structure will be similar to ones commonly found in standard queen's pawn openings. 4... g8f6  5. c2e3  5... d5d8  6. f1h1 