Four Knights Game: Spanish Variation, Symmetrical Variation (6. d3 d6)

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6

Four Knights Game: Spanish Variation, Symmetrical Variation after 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6 87654321abcdefgh

The Four Knights Game: Spanish Variation, Symmetrical Variation is a chess opening classified as ECO C49, reached after 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6. It is a line of the Four Knights Game. White is to move. 3 named lines continue from this position.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 106 times by this move order. White won 53%, 4% were drawn and Black won 43%. The most popular continuation is 7. Bg5 (61% of games).

Engine evaluation: +0.19 (Stockfish, depth 50; best line 7. Ne2 Ne7 8. c3 Ba5 9. Ng3 c6)

ECO
C49
Moves
12 plies
FEN
r1bq1rk1/ppp2ppp/2np1n2/1B2p3/1b2P3/2NP1N2/PPP2PPP/R1BQ1RK1 w - - 0 7
PGN
1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6

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

Results by rating

Average ratingGamesWhite / draw / Black
0-14992658%38%
1500-19991833%67%
2000+6256%39%
All10653%43%

Most played moves

MoveGamesWhite / draw / Black
7. Bg565 (61%)55%42%
7. Ne2
Spanish Variation, Symmetrical Variation (6… d6 7. Ne2)
13 (12%)69%23%
7. Bxc68 (8%)25%12%63%
7. h36 (6%)33%67%
7. Bd25 (5%)40%60%
7. a35 (5%)60%40%
7. Nd52 (2%)50%50%
7. Be31 (1%)100%

Master games

276 over-the-board games are classified under this line (White 47%, draw 26%, Black 27%). The strongest:

Search all games of the Four Knights Game: Spanish Variation, Symmetrical Variation and its sub-variations

Highest-rated Lichess games

Comes from

Four Knights Game: Spanish Variation, Double Spanish (5… O-O 6. d3) 1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3

Continuations

More Four Knights Game 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.