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ECO C66: Ruy Lopez: Berlin Defense

ECO C66 is part of volume C, Open Games. The Lichess chess-openings dataset files 7 named lines under it. The shortest is Ruy Lopez: Berlin Defense, Improved Steinitz Defense: 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6. 6 of the 7 are lines of the Ruy Lopez: Berlin Defense.

That position has come up in 1,933,610 Lichess games between players rated 1600 to 2500: White won 53.6%, 5.1% were drawn and Black won 41.3%.

OpeningMovesGamesLength
Ruy Lopez: Berlin Defense, Improved Steinitz Defense 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 1.9M 4 moves
Ruy Lopez: Closed Berlin Defense, Chigorin Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Nd7 437 5 moves
Ruy Lopez: Berlin Defense, Closed Wolf Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 exd4 68K 6 moves
Ruy Lopez: Berlin Defense, Hedgehog Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 58K 6 moves
Ruy Lopez: Berlin Defense, Closed Bernstein Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bg5 11K 7 moves
Ruy Lopez: Berlin Defense, Closed Showalter Variation 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O d6 5. d4 Bd7 6. Nc3 Be7 7. Bxc6 9,414 7 moves
Ruy Lopez: Berlin Defense, Tarrasch Trap 1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 Bd7 5. Nc3 Nf6 6. O-O Be7 7. Re1 O-O 21K 7 moves