411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e6/2. d4/2...d5/3. e5/3...c5/4. c3/4...Nc6/5. Nf3/5...Qb6/6. Bd3/6...cxd4/7. cxd4
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French Defence: Advance Variation rd bd kd bd nd rd pd pd pd pd pd qd nd pd pd pl pl bl nl pl pl pl pl pl rl nl bl ql kl rl
7.cxd4
This is an obvious recapture and it also sets a devious trap! If black continues 7... Nxd4? 8. Nxd4 Qxd4??, 9. Bb5+ wins the queen.
Theory table
+789...
Nxd4?Nxd4
Qxd4??Bb5+ +-...
Bd7=