Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6

Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred after 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 87654321abcdefgh

The Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred is a chess opening classified as ECO C70, reached after 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6. It is a line of the Ruy Lopez. White is to move.

In 12.6 million rated Lichess games (blitz and slower), this position was reached 91 times by this move order. White won 43%, 4% were drawn and Black won 53%. The most popular continuation is 5. O-O (53% of games).

Engine evaluation: +0.41 (Stockfish, depth 38; best line 5. c3 b5 6. Bb3 Bg7 7. d4 exd4)

ECO
C70
Moves
8 plies
FEN
r1bqkbnr/1ppp1p1p/p1n3p1/4p3/B3P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 0 5
PGN
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6

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

Results by rating

Average ratingGamesWhite / draw / Black
0-14991346%54%
1500-19992442%58%
2000+5443%50%
All9143%53%

Most played moves

MoveGamesWhite / draw / Black
5. O-O48 (53%)48%46%
5. c318 (20%)33%61%
5. d412 (13%)42%58%
5. d38 (9%)50%50%
5. Nc34 (4%)100%
5. Qe21 (1%)100%

Master games

982 over-the-board games are classified under this line (White 37%, draw 24%, Black 39%). The strongest:

Search all games of the Ruy Lopez: Morphy Defense, Fianchetto Defense Deferred and its sub-variations

Highest-rated Lichess games

Comes from

Ruy Lopez: Morphy Defense (3. Bb5 a6) 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6

More Ruy Lopez 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.