Tree path 3 levels Indian Defense: Anti-Nimzo-Indian › Queen's Indian Defense › Petrosian Variation
- Chess Codex
- Indian Defense: Anti-Nimzo-Indian E10
- Queen's Indian Defense E12
- Petrosian Variation E12 you are here
Queen's Indian Defense: Petrosian Variation
Overview
Queen's Indian Defense: Petrosian Variation is a named branch in the Indian Defenses group of chess theory, classified under ECO E12.
The Indian Defenses group covers Indian defences — hypermodern lines where Black challenges the centre with pieces rather than pawns.
It begins with 7 plies and takes 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 to reach the canonical position.
In the opening tree, this line branches off from Queen's Indian Defense, part of the broader Indian Defense: Anti-Nimzo-Indian system.
2 named variations grow from this line, including Queen's Indian Defense: Kasparov-Petrosian Variation, Farago Defense.
Together the deeper variations number 12 across the full subtree.
Use the board to walk through every move, check how the position has scored on Lichess, or take it head-to-head against Stockfish.
- ECO code
- E12
- Group
- Indian Defenses (E)
- Plies
- 7
- Parent
- Queen's Indian Defense
- Direct variations
- 2
- Total in subtree
- 12
This overview is generated automatically from the opening's metadata. A more detailed, human-written description is on the way — and you can speed it up by suggesting one yourself.
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Variations (2)
Show all 12 sub-variations (full subtree)
- E12 Queen's Indian Defense: Kasparov-Petrosian Variation 9-ply
- E12 Farago Defense 10-ply
- E12 Andersson Variation 10-ply
- E12 Hedgehog Variation 10-ply
- E12 Main Line 10-ply
- E12 Marco Defense 10-ply
- E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Classical Variation 12-ply
- E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Modern Variation 12-ply
- E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Kasparov Attack 13-ply
- E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Petrosian Attack 13-ply
- E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Rashkovsky Attack 13-ply
- E12 Queen's Indian Defense: Kasparov-Petrosian Variation, Romanishin Attack 13-ply