411 REFERENCE · Wikibooks
Chess Opening Theory/1. e4/1...c6/2. d4/2...d5/3. e5/3...Bf5/4. Nc3/4...e6/5. g4/5...Bg6/6. Nge2/6...c5/7. h4/7...h5
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Van der Wiel Attack
7... h5 · Caro-Kann Defence - Advance Variation, Van Der Wiel Attack
White must continue to harass the black bishop, otherwise they have given up all initiative. Black looks like they have lost the h pawn, but they have active counterplay on the queenside.
Theory table
8. Nf4
Caro–Kann Defence