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

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5

Queen's Indian Defense: Kasparov-Petrosian Variation, Classical Variation after 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5 87654321abcdefgh

The Queen's Indian Defense: Kasparov-Petrosian Variation, Classical Variation is a chess opening classified as ECO E12, reached after 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5. It is a line of the Queen's Indian Defense. White is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 32 times by this move order. White won 50%, 3% were drawn and Black won 47%. The most popular continuation is 7. Bg5 (44% of games).

Engine evaluation: +0.32 (Stockfish, depth 44; best line 7. Qc2 c5 8. g3 Be7 9. Bg2 O-O)

ECO
E12
Moves
12 plies
FEN
rn1qkb1r/pbp2ppp/1p3n2/3p4/3P4/P1N2N2/1P2PPPP/R1BQKB1R w KQkq - 0 7
PGN
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 exd5

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Results by rating

Average ratingGamesWhite / draw / Black
1500-1999450%50%
2000+2850%46%
All3250%47%

Most played moves

MoveGamesWhite / draw / Black
7. Bg514 (44%)29%71%
7. Bf47 (22%)71%29%
7. g35 (16%)60%20%20%
7. Qc23 (9%)67%33%
7. Qa4+2 (6%)50%50%
7. e31 (3%)100%

Master games

303 over-the-board games are classified under this line (White 45%, draw 26%, Black 29%). The strongest:

Search all games of the Queen's Indian Defense: Kasparov-Petrosian Variation, Classical Variation and its sub-variations

Highest-rated Lichess games

Comes from

Queen's Indian Defense: Kasparov-Petrosian Variation, Main Line 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5

More Queen's Indian Defense lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.