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 