Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...a6/4. Ba4/4...Nf6/5. O-O/5...Nxe4/6. d4/6...b5/7. Bb3/7...d5/8. dxe5/8...Be6/9. Nbd2

Ruy Lopez Open Defence
a b c d e f g h
8a8 black rookb8 black kingc8 black kingd8 black queene8 black kingf8 black bishopg8 black kingh8 black rook8
7a7 black kingb7 black kingc7 black pawnd7 black kinge7 black kingf7 black pawng7 black pawnh7 black pawn7
6a6 black pawnb6 black kingc6 black knightd6 black kinge6 black bishopf6 black kingg6 black kingh6 black king6
5a5 black kingb5 black pawnc5 black kingd5 black pawne5 white pawnf5 black kingg5 black kingh5 black king5
4a4 black kingb4 black kingc4 black kingd4 black kinge4 black knightf4 black kingg4 black kingh4 black king4
3a3 black kingb3 white bishopc3 black kingd3 black kinge3 black kingf3 white knightg3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 white pawnd2 white knighte2 black kingf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 black kingc1 white bishopd1 white queene1 black kingf1 white rookg1 white kingh1 black king1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)
Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. Nbd2
Parent: Ruy Lopez

Ruy Lopez Open Defence

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The old line goes: 9...Nc5 10. c3 d4 11. cxd4 Nxd4. The new variation goes: 11.Ng5!? Qxg5. Black is thought to equalize in both lines.