411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e5/2. Nf3/2...Nc6/3. Bb5/3...f5/4. Nc3/4...fxe4/5. Nxe4/5...Nf6/6. Nxf6/6...Qxf6/7. Qe2
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tright Ruy Lopez, Schliemann Defence rd bd kd bd rd pd pd pd pd pd pd nd qd bl pd nl pl pl pl pl ql pl pl pl rl bl kl rl Common moves: 7...Be7 - only move
Attempting to defend the e-pawn with moves like 7...d6 or 7...Bd6 are ultimately futile. Either 7...d6 8.d4 or 7...Bd6 8.d4 (not allowing Black the trick 8.Bxc6 dxc6 9.d4 Bg4) just win it outright.
So instead Black gambits the pawn with 7...Be7. The compensation will be in the form of open lines for the rooks and an unopposed light-squared bishop.Ruy Lopez