A53: Old Indian Defence without Nf3

1. d4 Nf6 2. c4 d6 2... e6 3. Nc3= 3. Nc3 Bf5 3... g6 4. e4+/= 4. g3 4. e4 Bxe4 5. Nxe4 Nxe4+/= 4... e6= Consolidates d5 5. Bg2 Nc6 6. Nf3 h6 Secures g5 6... Be7 7. Nh4+/= 7. O-O+/- Be7 8. d5 Ne5 8... exd5 9. cxd5 Ne5 10. Nxe5 dxe5 11. Qb3+/- 9. dxe6 Bxe6 10. Nxe5 dxe5 11. Bxb7 Qxd1 12. Rxd1 Weaker is 12. Nxd1 Rd8+/= 12... Rb8 13. Bc6+ Bd7 14. Bxd7+ Nxd7 15. Nd5 Bd6 16. Be3 White threatens to win material: Be3xa7 >= 16. b3+/- 16... O-O? 16... >= Rxb2 17. Bxa7 c6+/- 17. Rac1 >= 17. Nxc7 makes it even easier for White 17... Bxc7 18. Rxd7 Rfc8+- 17... c5? 17... Nb6 18. c5 Nxd5 19. Rxd5+- (19. cxd6?! is much weaker 19... Nxe3 20. fxe3 cxd6=) 18. Ne7+ >= 18. Nc3 nails it down 18... Nb6 19. Rxd6 Nxc4 20. Rd3 Nxe3 21. Rxe3 (21. fxe3?! Rxb2 22. Rd7 Ra8+-) 21... Rxb2 22. Rxe5+- 18... Bxe7 19. Rxd7 Bg5 20. Bxg5 hxg5 21. Rd5 21. Rc2!? Rfd8 22. Rxa7 Rbc8+- 21... f6 21... Rxb2 22. Rxe5 Rc8 23. a3+/= 22. Rxc5 22. b3!? Rfc8 23. Kg2+/- 22... Rxb2+/= White has a new passed pawn: c4. 23. Rc7 White threatens to win material: Rc7xa7 23... Rxa2 24. e3 24. c5!? is interesting 24... Rxe2 25. c6+/= 24... Rd8 25. c5 Kh7 26. c6 White advances the passed pawn 26... Rdd2 Black threatens to win material: Rd2xf2 27. Rf1 27. Rxa7 Rxa7 28. c7 Rd1+ 29. Rxd1 Rxc7= 27... Rdc2=/+ 28. Rc8 Rab2 28... Ra6 29. c7=/+ 29. Rc7 White threatens to win material: Rc7xa7 29... Rb6 30. Rxa7 Rbxc6 31. Kg2 R6c3 32. Kh3 Rc1 33. Rxc1 Rxc1 34. Kg2 Rc2 35. Ra8 f5 35... Rc4 36. h3= 36. Re8 36. Ra5 Kg6+/= 36... e4 This push gains space 36... Rc5 37. g4 g6 38. Re7+ Kg8 39. f3= 37. g4+/= g6 38. Re5 Rc4 39. gxf5 gxf5 40. Rxf5 Kg6 41. Re5 Kf6 Black threatens to win material: Kf6xe5 42. Rd5 Rc6 43. Rd4 White threatens to win material: Rd4xe4 43... Re6 44. Kg3 Re5 44... Ke5 45. Rb4 Re7 46. f3 exf3 47. Kxf3 Rf7+ 48. Kg4+/= 45. Rd6+ 45. Kg4!?+/- 45... Kf5+/= 46. h4 46. Rd8 Re7+/= 46... gxh4+= 47. Kxh4 Re8 48. Rd5+ Kg6 48... Ke6 49. Rd4 Kf5 50. Rb4= 49. Kg4+/= Rf8 49... Ra8 50. Rd6+ Kg7 51. Re6+/= 50. Kg3 50. Rg5+!? Kh6 51. Rf5 Rg8+ 52. Kf4+/- 50... Re8 50... Kf6 51. Rh5= 51. Kf4 51. Ra5!?+/= 51... Rf8+= 52. Kxe4 Rxf2 White has a new passed pawn: e3. 53. Re5 Kf6 54. Rd5 Ke6 55. Ra5 Kd6 56. Ra7 Ke6 57. Kd3 1-0 [Fritz 9 (60s)]