1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1b5  3... a7a6  4. b5a4  4... g8f6  5. b1c3  5... f8c5  6. a2a3 A curious move, with the idea of opening the way for the bishop on a2. But it seems a bit slow.