D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4

1. Nf3 d5 2. d4 Bf5 3. c4 last book move 3... Bxb1 4. Rxb1 dxc4 5. Qa4+ 5. e4 Nf6 6. e5 Nd5 5... Qd7 6. Qxc4 Nc6 7. e4 e6 8. a3 Nf6 9. Bd3 Be7 10. O-O O-O 11. b4 a6 12. Bb2 Rfd8 13. Rfd1 b5 13... Na7 14. Rbc1 14. Qc3 14. Qc2 Na7 14... Rab8 15. Rbc1 Rb6 16. Bb1 Ne8 17. h3 17. d5!? exd5 18. exd5 Nb8 17... a5 18. bxa5 Ra6 18... b4 19. Qc2 Nxa5 20. axb4 19. d5 White intends e5 19. Bd3!? Na7 20. Ne5 19... Nxa5 20. Ne5 Qd6 20... Qc8!? 21. Qf3 Bf6? 21... f6 22. Ba2 Qb6 23. dxe6 Rxd1+ 24. Rxd1 Nc4 22. Nxf7! Demolition of pawn structure 22... Kxf7 Decoy theme: f7 22... Qf8 praying for a miracle 23. Nxd8 Bxb2 24. Qxf8+ Kxf8 23. e5 Qe7 24. exf6 24. Bxh7 Kf8 25. Bg6 Qd7 26. dxe6 Qxd1+ 27. Rxd1 Rxd1+ 28. Qxd1 Rxe6 24... Nxf6 25. dxe6+ 25. Bxf6 Qxf6 26. dxe6+ Rxe6 27. Qxf6+ Kxf6 28. Rxd8 25... Rxe6 26. Ba2 26. Rxd8 Qxd8 27. Bxf6 Rxf6 28. Qh5+ Kf8 29. Bxh7 Qd7 26... Nc4 27. Rxd8 Qxd8 28. Rxc4 28. Bxf6 would have given White the upper hand 28... gxf6 29. Qh5+ Kg7 30. Bxc4 bxc4 31. Qg4+ ( 31. Rxc4 Re5 32. Qg4+ Rg5) 31... Kf7 32. Qxc4 28... Re1+ 29. Kh2 bxc4 30. Bxc4+ Kf8 31. Bc3 31. a4 c5 32. Bc3 Qd6+ 33. g3 31... Rb1?? Black loses the upper hand 31... Qd6+!? should be examined more closely 32. g3 Qxa3 32. g3 32. Qf5 Rb8 32... Qd6 32... Qd1!? is worthy of consideration 33. Bb4+ Ke8 34. Bb5+ Kf7 35. Bc4+ Ke8 36. Qe3+ Kd8 37. Qe7+ Kc8 38. Ba6+ Kb8 39. Qf8+ Ka7 40. Qc5+ Kxa6 41. Qc6+ Ka7 42. Qxc7+ Ka6 43. Qc6+ Ka7 44. Qc7+ Ka6 45. Qc6+ Ka7 46. Qc7+= 33. Qf5 c5?? another step towards the grave 33... Rb8 34. Qxb1 34. Qxb1 Ke7 35. a4 1-0 [Fritz 8 (30s)]

E20: Nimzo-Indian: 4 g3 and 4 f3

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bd2 O-O 5. Qc2 last book move 5... c5 6. e3 6. a3 Bxc3 7. Bxc3 cxd4 8. Bxd4 Nc6 9. Bxf6 Qxf6= 6... b6 7. a3 Bxc3 8. Bxc3 Bb7 9. Nf3 d5 9... Ne4 10. dxc5 bxc5 11. b4= 10. Bd3 10. dxc5 bxc5 11. Rd1 Nbd7 10... dxc4 11. Bxc4 Be4 12. Bd3 Bxd3 13. Qxd3 Qc7 13... Qd5!?= is an interesting idea 14. dxc5 Rd8 15. cxb6 Qxb6 15... Rxd3? springs to mind, but 16. bxc7 Nbd7 17. Bxf6 Nxf6 18. Nd4 16. Qc2 Qc6 17. Rc1 Nbd7 18. O-O Rac8 19. Qb1 Qb5 20. Bd4 a5 21. Rc3 21. Rxc8 Rxc8 22. Bxf6 Nxf6 21... e5 22. Rxc8 Rxc8 23. Bc3 Nd5 24. Bd2 24. Bxe5 Nxe5 25. Nxe5 Nxe3 24... f6 Controls g5 24... a4 25. Qf5 g6 26. Qb1 25. Rd1 N7b6 26. e4 Ne7 27. Be3 27. b4!? axb4 28. Bxb4 27... Nc4= The backward pawn on b2 becomes a target 28. Bc1 28. Qd3 Qxb2 29. Bc1 Qb5= 28... Nxa3 29. Qa2+ Kh8?? not a good decision, because now the opponent is right back in the game 29... Nc4= saving the game 30. Qxa3 Ng6 31. Qd6 h6 31... a4 doesn't get the bull off the ice 32. Nh4 32. Bxh6 secures victory 32... Qb7 33. Bd2 Qxe4 34. Qd7 32... Nxh4= 33. h3 Qe8 33... Kh7 34. Bxh6? 34. Qa6= and White can hope to survive 34... Qg6 35. g3 gxh6 35... Qxh6?! 36. Qd7 Rb8 37. gxh4 Qxh4 38. Qf5 36. Qe6 36. Qa6 Rg8 37. Rd3 36... Re8 37. Qc6 Nf3+ 38. Kg2 Nd4 39. Rc1 39. Qd5 0-1 [Fritz 8 (30s)]

E90: King's Indian: Classical: Early deviations and 6 h3

1. Nf3 Nf6 2. d4 g6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. h3 e5 7. dxe5 dxe5 8. Qxd8 Rxd8 9. Bg5 last book move 9... Nc6 10. Nd5 Rd6 11. c5 11. Bxf6 Bxf6 12. Nxc7 (12. Nxf6+?! Rxf6 13. Rd1 Be6=) 11... Rxd5= 12. exd5 Nxd5 13. O-O-O Be6 14. Bc4 Nc3 15. bxc3 15. Bxe6!? Nxd1 16. Rxd1 fxe6 17. Rd7= 15... Bxc4 A sound move 16. Rd7 Rc8 17. Kb2 e4 18. Nh2 18. Ne1!? 18... Ne5 19. Rd2 Nd3+ 20. Kc2 Nxc5 21. Ng4 Bd3+ 22. Kb2 Na4+ 23. Kb3 Bxc3?? allows the opponent back into the game 23... Nxc3 and the scales tip in favour of Black 24. Bf6 Nd5 25. Bxg7 Kxg7 24. Rxd3 exd3 25. Kxa4 c5 26. Bf6 Bxf6 27. Nxf6+ Kg7 28. Ne4 c4 28... f5 29. Nd6 Rc6 30. Nxb7= 29. Nc3 a6 30. a3 Rd8 30... b6 31. Kb4 31. Kb4 Rc8 31... Rd4 32. Kc5 Rf4 33. f3 32. a4 b6 32... f5 33. a5 33. Re1 33. Ne4 h6 33... Rc5 33... Rc6 34. Rc1 34. Re7 34. a5!? Rxa5 35. Kxc4 34... a5+ 35. Ka3 Kf6 36. Rb7 Rc6 36... Rf5 37. f3 37. Kb2 Re6 38. Nd5+ Kg7 39. Ne3 Rd6 39... Rf6 40. Kc3 Rxf2 41. Rxb6 40. Kc3 d2 41. Kc2 Kg8 42. Rc7 Rd4 43. Nd1 Kg7 43... c3 44. Nxc3 d1=Q+ 45. Nxd1 Rxa4 46. Rb7 44. Nc3 Kf6 45. Rc6+ Ke7 46. Rxb6 Rd3 47. Nd1 Kd7 47... Ra3 48. Kxd2 Rxa4 49. Kc3 48. Ra6 Kc7 49. Rxa5 Kb6 50. Ra8 Kb7 51. Re8 Kb6 52. Rc8 Rd4 53. Kc3 Rd3+ 54. Kxc4 Ra3 55. Rd8 Rxa4+ 56. Kb3 Ra5 57. Rxd2 57. Rxd2 Kc6 58. Ne3 1-0 [Fritz 8 (30s)]

B21: Sicilian: 2 f4 and Morra Gambit

1. e4 c5 2. f4 d6 3. Nf3 Nc6 last book move 4. Bc4 a6 Controls b5 5. a3 Prevents intrusion on b4 5... b5 6. Bd5 Qc7 7. d3 e6 8. Ba2 Nge7 9. Be3 h6 Secures g5 10. Nbd2 f5 11. Nh4 g5 12. Qh5+ Kd8 13. fxg5 Bd7? 13... Bg7 14. O-O-O hxg5 15. Qxg5 14. O-O 14. Ng6 Be8 15. Nxf8 Rxf8 (15... Bxh5 16. Nxe6+ Kc8 17. Nxc7 Kxc7 18. gxh6) 14... Be8? 14... Bg7 15. g6 15. Qf3 15. g6!? Bg7 16. c3 fxe4 17. Nxe4 (17. Bxe6?! exd3 18. Qf3 Rb8) 15... hxg5 16. Bxg5 Bh5? 16... Rh5!? 17. Qe3 Nd4 17. Qf2 Nd4 18. Ndf3 Nxf3+ 19. Nxf3 d5 20. g3 20. exd5!? Bxf3 21. Qxf3 Qxh2+ 22. Kf2 20... fxe4 21. dxe4 Bg7 22. exd5 Rf8?? leading to a quick end 22... Kc8 23. dxe6 Rf8 23. Qe3 23. d6 secures the win 23... Qxd6 24. Rfd1 23... Rxf3 24. Rxf3 Bd4 25. Rf8+ Be8 26. Qxd4 cxd4 27. dxe6?? there were better ways to keep up the pressure 27. Re1 would be a reprieve 27... d3 28. cxd3 27... Qc5 28. Bf4?? White falls apart 28. h4 d3+ 29. Rf2 dxc2 30. Bb3 28... Ng6 28... d3+ keeps an even firmer grip 29. Kh1 dxc2 29. Rf6 29. e7+ otherwise it's curtains at once 29... Qxe7 30. Rf5 Nxf4 31. Rxf4 Qe3+ 32. Rf2 29... Nxf4 30. Rxf4 d3+ 31. Rf2 31. Kf1 is not the saving move 31... dxc2 32. Rc1 Bg6 31... dxc2 32. Rc1 Bg6 33. Bb3 Qe3 33... Ke7 and Black can already relax 34. Kf1 Bd3+ 35. Kg2 34. Bxc2 34. Rcxc2 there is nothing else anyway 34... Qxb3 35. e7+ Kxe7 36. Rce2+ Kd7 37. Rd2+ Kc7 38. Rfe2 34... Qxc1+ 34... Qxc1+ 35. Kg2 Bxc2 0-1 [Fritz 8 (30s)]