Queen's Indian Defense: Kasparov-Petrosian Variation, Hedgehog Variation

1.
1. d4
2. Nf6
2.
3. c4
4. e6
3.
5. Nf3
6. b6
4.
7. a3
8. Bb7
5.
9. Nc3
10. g6

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The Queen's Indian Defense: Kasparov-Petrosian Variation, Hedgehog Variation is a chess opening classified under ECO code E12 (Indian defences). It is a variation of the Queen's Indian Defense family. Step through the moves on the board above, then play the line yourself or review it with the built-in engine.