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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

< Chess Opening Theory‎ | 1. e4‎ | 1...e5‎ | 2. Nf3‎ | 2...Nc6‎ | 3. Bb5‎ | 3...a6‎ | 4. Ba4‎ | 4...Nf6‎ | 5. O-O‎ | 5...Nxe4
Ruy Lopez Open Defence
a b c d e f g h
8a8 black rookb8 black kingc8 black bishopd8 black queene8 black kingf8 black bishopg8 black kingh8 black rook8
7a7 black kingb7 black pawnc7 black pawnd7 black pawne7 black kingf7 black pawng7 black pawnh7 black pawn7
6a6 black pawnb6 black kingc6 black knightd6 black kinge6 black kingf6 black kingg6 black kingh6 black king6
5a5 black kingb5 black kingc5 black kingd5 black kinge5 black pawnf5 black kingg5 black kingh5 black king5
4a4 white bishopb4 black kingc4 black kingd4 white pawne4 black knightf4 black kingg4 black kingh4 black king4
3a3 black kingb3 black kingc3 black kingd3 black kinge3 black kingf3 white knightg3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 white pawnd2 black kinge2 black kingf2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 white knightc1 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)

r1bqkb1r/1ppp1ppp/p1n5/4p3/B2Pn3/5N2/PPP2PPP/RNBQ1RK1 b

Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4
Parent: Ruy Lopez

Ruy Lopez Open Defence

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White is once again threatening to win Black's e-pawn, although Black is temporarily a pawn up anyway. More importantly, Black needs to complete her development and if possible reinforce the crusading knight on e4, but the immediate ...d5 would leave the c6-knight pinned allowing the powerful Nxe5. 6...Be7 is a semi-useful move, but to really get to grips with the situation Black should play 6...b5 preparing ...d5 by chasing the bishop away.

Black can also accept White's gambit with 6...exd4, which leads to a wonderful mess.

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References

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Wikipedia has related information at Ruy Lopez

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