The Ruy Lopez: 1.e4 e5 2.Nf3... 4.Ba4 arises after 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 and falls under ECO code C70. White chooses to keep their bishop. They keep the pressure on Black's knight, and indirectly on the e5 pawn that it defends. The key difference between this position and the position after 3. Bb5 is that now Black has the option of b5, whenever they like, which will cut off the threat of Bxc6 followed by Nxe5 for good. Black doesn't need to play ...b5 until White protects their e-pawn (see below) so usually concentrates on development first. Black's main priority should be to develop their kingside and castle. 4...Nf6 is by far the most common continuation 1 and most principled move. Black starts development of their kingside while also threatening the e4 pawn. This is just referred to as the main line , rather than the Berlin defence deferred. With 108,612 games in the master database, it is one of the most popular opening choice.
History and Notable Players
It arises from the Ruy Lopez: Morphy Defense. Among the most prolific practitioners on the White side are Viswanathan Anand (269 games), Vlastimil Jansa (238 games), Michael Adams (207 games). On the Black side, notable exponents include Svetozar Gligoric (295 games), Alexander G Beliavsky (269 games), Oleg M Romanishin (266 games).
Statistics
Based on 108,612 master-level games:
- White wins: 37%
- Black wins: 25%
- Draws: 38%
White has a significant statistical advantage in this line, reflecting the initiative that comes with the first move.
Main Lines and Variations
After 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4, the main continuations include:
- Ruy Lopez: 1.e4 e5 2.Nf3... d6
- Ruy Lopez: 1.e4 e5 2.Nf3... Nf6
- Ruy Lopez: 1.e4 e5 2.Nf3... 5.0-0
- Ruy Lopez: 1.e4 e5 2.Nf3... 5.c3
- Ruy Lopez: 1.e4 e5 2.Nf3... 5.0-0
- Ruy Lopez: 1.e4 e5 2.Nf3... Bd7
- Ruy Lopez: 1.e4 e5 2.Nf3... d6
- Ruy Lopez: 1.e4 e5 2.Nf3... Nxe4
- Ruy Lopez, Closed Defence
- Ruy Lopez: 1.e4 e5 2.Nf3... 6.d4
- Ruy Lopez, Closed Defence: 1.e4 e5 2.Nf3... 6.Qe2
- Ruy Lopez: 1.e4 e5 2.Nf3... g6
Each of these lines leads to distinct types of positions and requires its own understanding of the resulting pawn structures and piece placements.
Common Mistakes to Avoid
- Neglecting development: In the Ruy Lopez: 1.e4 e5 2.Nf3... 4.Ba4, it can be tempting to make extra pawn moves early on. However, falling behind in development can be punished quickly, especially in open positions where opponent pieces can find active squares.
- Playing without a plan: Each position in the Ruy Lopez: 1.e4 e5 2.Nf3... 4.Ba4 demands a specific approach. Understand whether you should be attacking, defending, or maneuvering before making your move. Random moves lead to random results.
- Forgetting about piece coordination: Chess pieces are strongest when they work together. A single piece attacking alone is easy to defend against, but coordinated pieces can create unstoppable threats.
Practice on Chessiverse
The best way to learn the Ruy Lopez: 1.e4 e5 2.Nf3... 4.Ba4 is through practice. On Chessiverse, you can play chess against computer opponents from any opening or custom position. Our AI bots range from beginner to grandmaster level, each with unique playing styles — from aggressive attackers to solid defenders. Choose a bot that matches your rating and work your way up as you master the opening's key ideas.
