For White· 14 lines

Réti Opening - Symmetrical Defense (2...g6)

Black meets your fianchetto with ...g6, building a King's Indian setup with ...d6, ...Nbd7, and ...e5. You answer with d4, c4, Nc3, and e4, then play h3 and Re1, planning f3 and Be3. Watch for ...Nc5, which threatens to win your e4 pawn. Meet ...d5 with cxd5, aiming to recapture on d5.

Let's learn the Symmetrical Defense! Black mirrors our setup with a kingside fianchetto. We fianchetto our own bishop to g2 and castle kingside for safety. Let's begin with 1.Nf3.

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Main line

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Key lines

The free lines of this chapter, each one trainable move by move.

  1. Main Line: position after 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nbd7 7. Nc3 e5 8. e4 exd4 9. Nxd4 Re8 10. h3 Nc5 11. Re1
    Main Line

    … 8... exd4 9. Nxd4 Re8 10. h3 Nc5 11. Re1

  2. 2...d5: position after 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bg4 5. h3 Bh5 6. c4
    2...d5

    … 2. g3 d5 3. Bg2 c6 4. O-O Bg4 5. h3 Bh5 6. c4

  3. 2...d5: position after 1. Nf3 Nf6 2. g3 d5 3. Bg2 c6 4. O-O Bf5 5. d3 e6 6. Nh4
    2...d5

    … 2. g3 d5 3. Bg2 c6 4. O-O Bf5 5. d3 e6 6. Nh4

  4. 2...d5: position after 1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O g6 5. c4
    2...d5

    … 2. g3 d5 3. Bg2 c5 4. O-O g6 5. c4

  5. 2...d5: position after 1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d4 e6
    2...d5

    … 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d4 e6

  6. 2...d5: position after 1. Nf3 Nf6 2. g3 d5 3. Bg2 e6
    2...d5

    … 2. g3 d5 3. Bg2 e6

  7. 2...c5: position after 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O e5 5. e4
    2...c5

    … 2. g3 c5 3. Bg2 Nc6 4. O-O e5 5. e4

  8. 2...c5: position after 1. Nf3 Nf6 2. g3 c5 3. Bg2 Nc6 4. O-O g6 5. c4
    2...c5

    … 2. g3 c5 3. Bg2 Nc6 4. O-O g6 5. c4

  9. 5...d5: position after 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 dxc4 7. Na3 c3 8. bxc3 c5 9. Bb2 Nc6 10. Re1 cxd4 11. cxd4 Ne4 12. Qc2
    5...d5

    … 5. d4 d5 6. c4 dxc4 7. Na3 c3 8. bxc3 c5 9. Bb2 Nc6 10. Re1 cxd4 11. cxd4 Ne4 12. Qc2

  10. 5...d5: position after 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d5 6. c4 c6 7. cxd5 cxd5 8. Nc3 Nc6 9. Ne5 e6 10. Nxc6 bxc6 11. Bf4
    5...d5

    … 5. d4 d5 6. c4 c6 7. cxd5 cxd5 8. Nc3 Nc6 9. Ne5 e6 10. Nxc6 bxc6 11. Bf4

  11. 6...Nc6: position after 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nc6 7. Nc3 a6 8. b3 Rb8 9. d5 Na5 10. Bg5 c5 11. dxc6 Nxc6 12. Qd2
    6...Nc6

    … 6. c4 Nc6 7. Nc3 a6 8. b3 Rb8 9. d5 Na5 10. Bg5 c5 11. dxc6 Nxc6 12. Qd2

  12. 6...Nc6: position after 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nc6 7. Nc3 e5 8. dxe5 dxe5 9. Bg5 Be6 10. Qa4
    6...Nc6

    … 6. c4 Nc6 7. Nc3 e5 8. dxe5 dxe5 9. Bg5 Be6 10. Qa4

  13. 6...c6: position after 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 c6 7. Nc3 Nbd7 8. e4
    6...c6

    … 6. c4 c6 7. Nc3 Nbd7 8. e4

  14. 7...c5: position after 1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O 5. d4 d6 6. c4 Nbd7 7. Nc3 c5 8. b3
    7...c5

    … 7. Nc3 c5 8. b3

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