context: 1. g1f3  1... g8f6  2. g2g3  2... d7d5  3. f1g2  3... c7c5  4. e1g1  4... b8c6  5. d2d4  5... e7e6  6. c2c4  6... d5c4  7. d1a4  7... c8d7  8. d4c5  8... f8c5  9. a4c4 A well-known position that can arise from several move orders. 9... c5e7  10. b1c3  10... e8g8  11. e2e4 