[Event "Reti Opening: King's Indian Defense and Grunfeld Defense Setups (1.Nf3 Nf6 2.c4 g6 3.b4): Reti Opening: King's Indian Defense and Grunfeld Defense Setups (1.Nf3 Nf6 2.c4"] [Date "2018.11.29"] [Result "*"] [Variant "Standard"] [ECO "A15"] [Opening "English Opening: Anglo-Indian Defense, King's Indian Formation"] [StudyName "Reti Opening: King's Indian Defense and Grunfeld Defense Setups (1.Nf3 Nf6 2.c4 g6 3.b4)"] [ChapterName "Reti Opening: King's Indian Defense and Grunfeld Defense Setups (1.Nf3 Nf6 2.c4"] [ChapterURL "https://lichess.org/study/zVm7QK6t/uveeRF6U"] [Annotator "https://lichess.org/@/flohahn22"] [UTCDate "2018.11.29"] [UTCTime "17:05:42"] [Orientation "white"] 1. Nf3 Nf6 2. c4 g6 { In these lines, Black's idea is to go for a King's Indian setup or Grunfeld setup. } 3. b4 { We've mentioned several alternatives for White in our opening guide. This is an ambitious idea for White, immediately gaining space on the queenside. The idea is that White usually plays on the queenside anyway. Against the King's Indian, for example, White can save several tempi if he gets to play b4 so easily. } 3... Bg7 (3... a5!? { This is an interesting try for Black, immediately questioning the pawn. } 4. b5 Bg7 5. Bb2 O-O 6. g3 { The following game is a model game on how to play with White from here. } 6... d6 7. Bg2 e5 8. d3 Nbd7 9. Qc2 Nc5 10. Nc3 Bf5 11. Nd2 Qc8 12. O-O Bh3 13. Nd5 Nxd5 14. cxd5 Bxg2 15. Kxg2 a4 16. Rab1 b6 17. a3 f5 18. Qc4 Qd7 19. d4 exd4 20. Bxd4 Bxd4 21. Qxd4 Rfe8 22. e3 Qf7 23. Rfd1 Re5 24. Nf3 Re4 25. Qc3 h6 26. Rb4 Rf8 27. h4 Rfe8 28. Rbd4 Nb3 29. Rc4 Nc5 30. Rcd4 Qg7 31. Qc2 Qf7 32. Kg1 Kg7 33. Rc4 Kg8 34. Qc3 R8e7 35. Rdd4 Re8 36. Qc2 R8e7 37. Rd1 Re8 38. Rcd4 Kh7 39. Rc4 Kg8 40. Rcd4 Kf8 41. Rc4 Rxc4 42. Qxc4 Re4 43. Qc3 Kg8 44. Qc2 Qf6 45. Rd4 g5 46. Qc4 Kf7 47. Kg2 Kg6 48. hxg5 hxg5 49. Nd2 Re8 50. g4 Rh8 51. Qc2 Kg7 52. gxf5 Qh6 53. Kf1 Qh1+ 54. Ke2 Qg2 55. f6+ Kxf6 56. Qc3 Ke7 57. Re4+ Nxe4 58. Qg7+ { Stocek, Jiri - Rasik, Vitezslav, 1-0, Pardubice Czech op 21st, 2010, https://lichess.org/50wMXvkP }) 4. Bb2 O-O { Here, White has a choice. He can play 5.e3 and 5.g3. The first option is a viable possibility which might promise White a slight edge. Yet, as we fianchettoed our light-squared bishop in each line so far, we keep doing this here. This might suit Reti players more than playing 5.e3. } 5. g3 { Black not has to decide if he wants to go for the King's Indian Defense (5...d6) or the Grunfeld Defense (5...d5). } 5... d6 (5... d5 { Against the Grunfeld setups, White gets an extra pawn in the center which promises him the better chances in the long run. } 6. cxd5 Nxd5 (6... Qxd5!? 7. Bg2 { The queen is a bit misplaced on d5. } { [%csl Rd5][%cal Gg2d5] } 7... Nc6 8. Nc3 { [%csl Rd5][%cal Gc3d5] } 8... Qd8 (8... Qh5 9. b5 { [%csl Rc6][%cal Gb5c6] } 9... Na5 { [%csl Rc4][%cal Ga5c4] } 10. Qa4 b6 11. O-O Bh3 12. Rfc1 Bxg2 13. Kxg2 $14 { [%csl Rc7][%cal Gc1c7] }) 9. b5 Na5 { [%csl Rc4][%cal Ga5c4] } 10. d3 c6 11. bxc6 Nxc6 12. O-O Be6 13. Rb1 $14 { Of course, there are many options for Black to develop his pieces. However, White has a slight pull in these types of positions. His pieces are excellently placed and he has an extra central pawn. } { [%csl Rb7][%cal Gb1b7,Yd1a4,Gf1c1] }) 7. Bxg7 Kxg7 { [%csl Rb4][%cal Gd5b4] } 8. Qb3 { Objectively speaking, Black should be able to obtain an equal game from this position. However, he needs to play clever moves. White again has an extra central pawn and if Black plays too casually and allows White to catch up in development, he will be slightly worse. } 8... Nc6 { [%csl Rb4][%cal Gd5b4,Gc6b4] } 9. b5 Na5 10. Qb2+ Kg8 { [%csl Rc4][%cal Ga5c4] } 11. d3 c6 12. Bg2 cxb5 13. Qxb5 Bg4 14. O-O Rc8 15. h3 Be6 16. Ng5 $14 { [%csl Re6][%cal Gg5e6,Yg5e4,Yb1d2,Gd2c4,Gf1c1,Ga1b1] }) 6. Bg2 e5 { Black plays a King's Indian setup. } 7. d3 { This is a sensible setup for White. He not only managed to already expand on the queenside, but also has his dark-squared bishop on a sensible square. The on f3 can be transferred to the queenside via d2. White has fantastic chances for an opening advantage from here. } 7... Nh5 { This is the most direct approach for Black to start counterplay on the kingside with ...f7-f5. Moreover, Black also has to tactical threat ….e5-e4 which White has to deal with. } (7... Nc6 { Black usually needs to bring this knight over to the kingside to increase his attacking potential. } 8. b5 { [%csl Rc6][%cal Gb5c6] } 8... Ne7 9. O-O Nh5 10. Nc3 f5 11. a4 f4 12. Ne4 h6 13. d4! Bf5 14. Nh4! { [%csl Rf5,Rg6][%cal Gh4f5,Gh4g6] } 14... Be6 { [%csl Rc4][%cal Ge6c4] } 15. dxe5 dxe5 16. Qc2 { [%csl Rc4][%cal Gc2c4] } 16... g5 17. Nf3 Bf5 { [%csl Re4,Rc2][%cal Gf5c2] } (17... g4?! 18. Nxe5 $18) 18. Nxe5 $16 { The position is quite tactical but it all works for White who already has a close to winning advantage. }) (7... a5 { Black wants to stop the expansion of White's a-pawn with this move. } 8. b5 { [%cal Rb8c6,Gb8d7] } 8... Nbd7 9. O-O Nc5 10. Nfd2! { [%csl Rb7][%cal Gg2b7] } 10... Bg4 { [%csl Rd3][%cal Gc5d3] } 11. h3 Bf5 12. Nc3 Qe7 13. Nb3 Nfd7 14. Nd5 { [%csl Rc7,Re7][%cal Gd5c7,Gd5e7] } 14... Qd8 $14) 8. O-O? (8. Nc3 { This move is directed against ...e4. } 8... f5 9. O-O h6 { [%cal Gg6g5] } 10. a4 { White builds up on the queenside. } 10... g5 11. b5 f4 12. Nd2 g4 13. a5 Nd7 14. a6 { [%csl Gb7][%cal Ga6b7,Yg2b7] } 14... Rb8 15. Bd5+ Kh8 16. axb7 Bxb7 17. Rxa7 $16 { White has a close to winning advantage. } { [%csl Rb7][%cal Yd5b7,Ga7b7] }) 8... e4 9. Bxg7 exf3 10. Bxf8 fxg2 { [%csl Rf1][%cal Gg2f1] } 11. Kxg2 Qxf8 $17 { Black has two pieces for a rook and a pawn which gives him the clearly better chances in the middlegame. } *