A29: English Opening: Four Knights Variation with 4 g3

1. c4 1. e4 e5= 1... e5 2. Nc3 Nc6 3. g3 Bc5 4. Bg2 Nf6 5. Nf3 O-O 6. O-O Re8 7. d3 Consolidates e4 7... h6 Prevents intrusion on g5 8. a3 Secures b4 8... a5 9. Nb5 9. Nd2 d6= 9... d6=/+ 10. d4 exd4 11. Nbxd4 Bg4 12. Nxc6 bxc6 13. Qc2 13. b3 Qd7=/+ 13... Qd7 14. e3 Covers d4 14. b3 Bf5 15. Qd1 Qe6=/+ 14... Bh3 14... a4 15. Nd4 Bxd4 16. exd4-/+ 15. Bd2 15. b3 Bf5 16. Qd1 Be4=/+ 15... Bxg2 15... a4 16. Bb4 Ne4 17. Rfd1-/+ 16. Kxg2 White king safety dropped 16... Ne4 17. b4 Bb6 18. Rad1 Qg4 18... axb4 19. axb4 Qf5 20. Ra1-/+ 19. Be1 19. b5!?=/+ 19... axb4-/+ 20. axb4 h5 20... Qf5 21. Bc3-/+ 21. h3 21. Nd4!? Bxd4 22. f3= 21... Qf5 22. Bc3 Qg6 22... Nxg3 23. Qxf5 Nxf5 24. Bd4=/+ 23. Nh4 Qg5 24. Nf3 White threatens to win material: Nf3xg5 24... Qe7 25. Ra1 Rab8 25... c5 26. bxc5 Bxc5 27. Rxa8 Rxa8 28. Bd4= 26. Bd4 c5 27. bxc5 Bxc5 28. Bxc5 Nxc5 29. Nd4 29. Ra7 Qd7= 29... Qd7 30. Ra7 Rb7 Black threatens to win material: Rb7xa7 31. Rfa1 c6 Controls b5 32. Rxb7 Qxb7 Less advisable is 32... Nxb7 33. Ra7 c5 34. Qf5 Qxf5 35. Nxf5+/- 33. Rb1 White threatens to win material: Rb1xb7 33... Qa8 33... Qc7 34. Qd1 g6 35. Qf3= 34. Kg1 34. Nf5 Re6+/= 34... Ne6 34... Ne4 35. Qb2 g6 36. Kg2= 35. Qb2 Nxd4 35... Nxd4 36. Qxd4 Re6+/= 1/2-1/2 [Fritz 9 (5s)]