Queen's Indian Defense: Riumin Variation (8. Nc3 d5)

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 7. O-O O-O 8. Nc3 d5

Queen's Indian Defense: Riumin Variation after 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 7. O-O O-O 8. Nc3 d5 87654321abcdefgh

The Queen's Indian Defense: Riumin Variation is a chess opening classified as ECO E16, reached after 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 7. O-O O-O 8. Nc3 d5. 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 9 times by this move order. White won 56%, 11% were drawn and Black won 33%. The most popular continuation is 9. cxd5 (33% of games).

Engine evaluation: +0.46 (Stockfish, depth 42; best line 9. cxd5 exd5 10. Qc2 Nbd7 11. Rad1 Re8)

ECO
E16
Moves
16 plies
FEN
rn1q1rk1/pbp1bppp/1p2pn2/3p4/2PP4/2N2NP1/PP1BPPBP/R2Q1RK1 w - - 0 9
PGN
1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 7. O-O O-O 8. Nc3 d5

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

Results by rating

Average ratingGamesWhite / draw / Black
1500-1999333%67%
2000+667%16%17%
All956%33%

Most played moves

MoveGamesWhite / draw / Black
9. cxd53 (33%)67%33%
9. Ne53 (33%)33%67%
9. Qc22 (22%)100%
9. b31 (11%)100%

Master games

50 over-the-board games are classified under this line (White 46%, draw 22%, Black 32%). The strongest:

Search all games of the Queen's Indian Defense: Riumin Variation and its sub-variations

Highest-rated Lichess games

Comes from

Queen's Indian Defense: Riumin Variation (7… O-O 8. Nc3) 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 Be7 7. O-O O-O 8. Nc3

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.