411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...c6/2. Nc3/2...d5/3. Nf3/3...Nf6/4. e5/4...Ne4/5. d4
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Caro-Kann Defence: Two Knights Attack B10
5. d4 · Caro-Kann Defence: Two Knights Attack
White builds the centre, and Black mostly replies with 5...Nxc3
Theory table
5... Nxc3 5... Qa5 5... Bg4
Caro-Kann