1. e2e4  1... e7e5  2. g1f3  2... b8c6  3. f1c4  3... f8c5  4. d2d3  4... g8f6  5. a2a4  5... e8g8  6. a4a5  6... a7a6  7. e1g1  7... h7h6  8. c2c3  8... d7d6  9. h2h3  9... c5a7  10. c1e3  10... c6e7 As a rule,  Black prefers not to trade on e3 as this will open a valuable file for the first player. 11. e3a7  11... a8a7  12. f1e1  12... e7g6  13. b1d2  13... f8e8  14. d3d4  14... c8e6  15. c4f1 White's minimal advantage is due to his extra space and therefore Van Foreest needs more pieces on board. He is  now ready for massive queenside expansion and his bishop will be both  useful while supporting the advance as well as a defender on the kingside.  15... d8c8  16. b2b4  16... e5d4 Also, a dubious decision. 17. c3d4  17... d6d5 