1. g1f3  1... g8f6  2. g2g3  2... g7g6  3. b2b3  3... d7d5  4. c1b2  4... c7c5  5. f1g2  5... f8g7  6. c2c4  6... d5d4  7. b3b4  7... e8g8  8. b4c5  8... f6e4  9. e1g1  9... e4c5  10. d2d3  10... e7e5 Both players achieved a reversed version of the Benoni/Benko gambit with equal pawns which looks quite OK for  Black. 11. b2a3 The battle is around the c5 knight. 11... b8a6  12. f3d2 