English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (6… d6 7. O-O O-O)

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 Bxc3 6. dxc3 d6 7. O-O O-O

English Opening: King's English Variation, Four Knights Variation, Fianchetto Line after 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 Bxc3 6. dxc3 d6 7. O-O O-O 87654321abcdefgh

The English Opening: King's English Variation, Four Knights Variation, Fianchetto Line is a chess opening classified as ECO A29, reached after 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 Bxc3 6. dxc3 d6 7. O-O O-O. It is a line of the English Opening. White is to move.

This exact move order didn't appear in our sample of 12.6 million Lichess games: it's a rare line.

Engine evaluation: −0.03 (Stockfish, depth 34; best line 8. Ne1 h6 9. Nc2 Bf5 10. Ne3 Be4)

ECO
A29
Moves
14 plies
FEN
r1bq1rk1/ppp2ppp/2np1n2/4p3/2P5/2P2NP1/PP2PPBP/R1BQ1RK1 w - - 2 8
PGN
1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4 5. Bg2 Bxc3 6. dxc3 d6 7. O-O O-O

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

Master games

6 over-the-board games are classified under this line (White 33%, draw 34%, Black 33%). The strongest:

Search all games of the English Opening: King's English Variation, Four Knights Variation, Fianchetto Line and its sub-variations

Comes from

English Opening: King's English Variation, Four Knights Variation, Fianchetto Line (4. g3 Bb4) 1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6 4. g3 Bb4

More English Opening 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.