E93
King's Indian Defense: Petrosian Variation, Keres Defense
1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nh5 11. h4
The King's Indian Defense: Petrosian Variation, Keres Defense is a chess opening classified under ECO code E93. It is reached after the moves 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. d5 Nbd7 8. Bg5 h6 9. Bh4 g5 10. Bg3 Nh5 11. h4.
It belongs to the King's Indian Defense family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
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