ECO E98 · King's Indian Defense

King's Indian Defense: Orthodox Variation, Classical System, Neo-Classical Line

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3

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Black to move. The arrow shows Stockfish’s best move.
Best move

10… f5+0.60

White is slightly better. Stockfish 18, depth 18.

Analyze this position

In the King's Indian Defense: Orthodox Variation, Classical System, Neo-Classical Line (E98), reached after 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3, Stockfish 18 recommends 10… f5 for Black. White is slightly better (+0.60).

Top engine moves

  1. +0.6010… f5 11. f3 Kh8 12. a3 f4 13. Bf2 g5 14. Nd3 Rg8 15. b4
  2. +0.6110… Kh8 11. f3 f5 12. a3 f4 13. Bf2 g5 14. Nd3 Rg8 15. c5
  3. +0.6510… a5 11. f3 b6 12. a3 Nc5 13. b4 axb4 14. axb4 Rxa1 15. Qxa1

Frequently asked questions

What is the best move in the King's Indian Defense: Orthodox Variation, Classical System, Neo-Classical Line?
After 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. Ne1 Nd7 10. Be3, Stockfish 18 at depth 18 recommends 10… f5 for Black, continuing 11. f3 Kh8 12. a3 f4 13. Bf2 g5 14. Nd3 Rg8 15. b4. White is slightly better (+0.60). The next best moves are 10… Kh8 (+0.61) and 10… a5 (+0.65).
Is the King's Indian Defense: Orthodox Variation, Classical System, Neo-Classical Line a good opening?
Stockfish rates the position at +0.60: white is slightly better. Evaluations this early in the game are small, so practical results depend far more on knowing the plans and typical structures than on the engine's number.
What is the ECO code of the King's Indian Defense: Orthodox Variation, Classical System, Neo-Classical Line?
E98. ECO codes classify chess openings from A00 to E99; E is the volume for indian defenses.

Opening names from the Lichess opening book (CC0). Pieces by Colin M.L. Burnett (GPLv2+).