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. Qe2/6...d5/7. Nxf6/7...gxf6/8. d4
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tright Ruy Lopez, Schliemann Defence rd bd qd kd bd rd pd pd pd pd nd pd bl pd pd pl nl pl pl pl ql pl pl pl rl bl kl rl Common moves: 8...Bg7 - only move8...Bg7 is a deceptive move. Yes, it defends the vulnerable e-pawn - but not by attacking the square it's standing on, which wouldn't actually work because it would still have three attackers and two (non-pinned) defenders. Instead it defends the e-pawn indirectly by allowing ...O-O, which will unpin the c6-knight and, more importantly, allow the king's rook to come to the e-file and make the white king and queen uncomfortable.
8...e4 looks impressive but it just freezes Black's central pawns into a block of ice. White can play around the block of ice with Nh4, Bf4 and Qh5, or can play c4 which hits the block of ice with a hammer.
8...Bg4 is also not as powerful as it looks, because 9.dxe5 fxe5 10.Qxe5+ breaks the pin with check, and 9...Bxf3 10.Qxf3 just gives up the bishop pair for nothing. Possibly less than nothing, as it speeds up the White queen's journey to h5.Ruy Lopez