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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. d4/6...exd4/7. Re1

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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 | 6...exd4
The latest reviewed version was checked on 14 June 2017. There is 1 pending change awaiting review.
Ruy Lopez:Riga Variation
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 kingf5 black kingg5 black kingh5 black king5
4a4 white bishopb4 black kingc4 black kingd4 black 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 white rookf1 black kingg1 white kingh1 black king1
a b c d e f g h
Position in Forsyth-Edwards Notation (FEN)

r1bqkb1r/1ppp1ppp/p1n5/8/B2pn3/5N2/PPP2PPP/RNBQR1K1 b

Moves: 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 exd4 7. Re1
Parent: Ruy Lopez

Ruy Lopez:Riga Variation

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Black is in danger of seeing some large pieces fall off the board in the next few moves. In addition to the piece currently en prise, the f3-knight is threatening to take on d4 ganging up on the c6-knight and freeing the f-pawn to advance to f3 and win the house.

Black has to start some sort of counterattack, and the way to do this is with 7...d5 ignoring the pin on the c6-knight. 7...f5 is too little too late (8. Nxd4 b5 9. Bb3 Qh4 10. g3 Qf6 11. Nxc6 dxc6 12. f3), and 7...Qe7 swaps one pin for another (8. Bxc6 dxc6 9. Nfd2 Bf5 10. Qf3 just about wraps things up). Anything else drops the knight.

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References

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Wikipedia has related information at Ruy Lopez

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