Ruy Lopez: Open

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4

Ruy Lopez: Open is catalogued under ECO code C80. It is reached after 5 moves (10 half-moves): 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4. After the last move it is White to play. White opens 1. e4. It is a named variation of the Ruy Lopez, which has 235 catalogued lines in total. 1 deeper line continue from here, listed below.

Position shown after the last move; White to play.