A novelty, but a typical move for the position. Black forces a concession.
1. d2d4  1... g8f6  2. g1f3  2... g7g6  3. b1c3  3... d7d5  4. c1f4  4... f8g7  5. c3b5  5... b8a6 This position can  occur with reversed colors from the Chigorin Defense. 6. e2e3  6... f6h5  7. f4g5  7... c7c6  8. b5c3 