411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...e6/2. d4/2...d5/3. Nc3/3...Nf6/4. Bg5/4...Be7/5. e5/5...Nfd7
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Classical variation C14 Classical variation
5...Nfd7
Retreating the knight, preparing to trade bishops. White can choose to initiate the trade with /6. Bxe7/, or they can go for the dangerous /6. h4/, the Alekhine-Chatard attack.
Theory table
6. Bxe7 Qxe7 Alekhine-Chatard attack 6. h4
References
French Defence Traditional_line:_4.Bg5_Be7_5.e5_Nfd7_6.Bxe7_Qxe7