Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...a6/4. Ba4/4...Nf6/5. O-O/5...Be7/6. Re1/6...b5/7. Bb3

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Ruy Lopez Main Line
a b c d e f g h
8 a8 b8 c8 d8 e8 f8 g8 h8 8
7 a7 b7 c7 d7 e7 f7 g7 h7 7
6 a6 b6 c6 d6 e6 f6 g6 h6 6
5 a5 b5 c5 d5 e5 f5 g5 h5 5
4 a4 b4 c4 d4 e4 f4 g4 h4 4
3 a3 b3 c3 d3 e3 f3 g3 h3 3
2 a2 b2 c2 d2 e2 f2 g2 h2 2
1 a1 b1 c1 d1 e1 f1 g1 h1 1
a b c d e f g h
Position in Forsyth-Edwards Notation(FEN)


Parent: Ruy Lopez

Ruy Lopez Main Line[edit]

Black is no longer under any direct threat and may continue developing. Of the three natural moves, 7...Bb7 is considered a sideline, while the important difference between the main moves 7...d6 and 7...O-O is that the latter move allows the Marshall Gambit: 8...d5. Of course, Black still has the option of 8...d6, and since in modern times 7...d6 is almost always followed by 8...O-O anyway, whereas 7...O-O may cause White to panic at the prospect of a Marshall Gambit and play an anti-Marshall line, there seems to be no reason other than habit for 7...d6 to be preferred over 7...O-O.

Historically, 7...d6 was played to hold the e-pawn and allow 8...Na5, but this has not been a popular line since the 1930s.

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  • Modern Chess Openings 15th ed, 2008. Nick de Firmian. Random House, New York. ISBN 0-8129-3682-5.