Ruy Lopez: Closed, Worrall Attack, Castling Line

The Ruy Lopez: Closed, Worrall Attack, Castling Line is a chess opening classified under ECO code C86 in the Open Games & French Defense family, beginning with 1.e4 e5 or 1.e4 e6, including the Italian Game, Ruy Lopez, and French Defense. It is reached after 9 moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. Qe2 Be7 6. O-O b5 7. Bb3 O-O 8. c3 d5 9. d3. The resulting position leaves black to move.