B70: Sicilian Dragon: 6 g3 and 6 Be2 (without a later Be3)

1. e4 c5 1... e5 2. Bc4= 2. Nf3+/= Nc6 3. d4 cxd4 4. Nxd4 Black has a cramped position. Black's pieces can't move: c8+f8 4... Nf6 Black threatens to win material: Nf6xe4 5. Nc3 d6 6. Be2 g6 Secures f5+h5 7. O-O 7. Nxc6 bxc6 8. O-O Bg7= 7... Bg7+/= White has a very active position 8. Nb3 O-O 9. f4 a5 Black has a cramped position 10. Be3 a4 11. Nd4 Ng4 11... a3!? 12. Rb1 axb2 13. Rxb2 Qd7+/= 12. Bxg4+/= Bxd4 Black pins: Bd4xe3 13. Bxd4 Bxg4 14. Qd2 Be6 14... Qa5 15. a3+/= 15. Be3 15. f5!? Bc4 16. Rf3 Nxd4 17. Qxd4+/- 15... Qa5 16. Qf2 16. a3!?+/= 16... Bc4 Black threatens to win material: Bc4xf1 >= 16... a3 17. b4 Qxb4= 17. Rad1 >= 17. Rfb1= is the best option White has 17... a3 18. Bc1? >= 18. b3!? Qxc3 19. bxc4 Qxc4 20. c3 Qxe4 21. Rb1-+ 18... axb2 18... Bxf1 seems even better 19. Kxf1 f5 20. Kg1-+ 19. Bxb2 Rad8?? throwing away the advantage 19... Bxf1!? 20. Rxf1 f5 21. a3-+ 20. Nd5?? allows the opponent back into the game 20. Rfe1 f5= 20... Qc5?? hands over the advantage to the opponent >= 20... Qb5 and Black is on the road to success 21. Bc3 Bxf1 22. Qxf1 Qxf1+ 23. Kxf1 Ra8-+ 21. Qxc5 dxc5 22. Nb6? 22. Rfe1 b5 23. a4 bxa4 24. Nb6= 22... Rxd1?? Black has a mate threat. weakening the position >= 22... Bxf1 Black missed this excellent chance 23. Rxf1 Rd2-+ 23. Rxd1+/= Be2 23... Bxa2 24. Ba3 f5+/= 24. Ra1 >= 24. Rd2!? Ba6 25. g4+/- 24... Rd8= 25. Bc3 f6 Covers e5 25... Nd4!? 26. Kf2 Bb5= 26. Kf2+/= White threatens to win material: Kf2xe2 26... Bg4 27. f5?? gives the opponent counterplay >= 27. h3 Bd1 28. Rc1+/= 27... gxf5-/+ 28. h3 >= 28. Na4!?-/+ 28... Bd1-+ 29. exf5 Bxc2 30. g4 Rd3 31. Be1 31. Bb2 Rxh3 32. Rg1 Kf7-+ 31... Rxh3 32. Rc1 32. Nd7 h5 33. Nxc5-+ 32... Be4 32... Nd4!? keeps an even firmer grip 33. Nd7 h5 34. Nxc5 hxg4 35. Bb4 Bxf5 36. Rc3-+ 33. Rxc5? >= 33. Rc3 Bd3 34. Rxc5-+ 33... Ne5 34. Rc7 34. Rxe5 Rf3+ 35. Kg1 fxe5 36. Nd7-+ 34... Nxg4+ 35. Ke2 Rh2+ 36. Kd1 Ne3+ 36... Rb2 and Black can already relax 37. Nd7-+ 37. Kc1 Rc2+ 37... Rh1 might be the shorter path 38. Kd2 Nxf5 39. Nc8-+ 38. Rxc2 Nxc2 38... Bxc2?! 39. Bd2+/= 39. Bf2 Nb4 40. Kd2 Bxf5 40... Bxf5 41. a4 h5-+ 0-1 [Fritz 9 (5s)]