411 REFERENCE · Wikibooks
Chess Opening Theory/1. d4/1...d5/2. c4/2...c6/3. Nf3/3...Nf6/4. Nc3/4...dxc4/5. a4/5...Bf5/6. e3/6...e6/7. Bxc4
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Dutch Variation D18-D19 Dutch Variation Euwe Variation
7. Bxc4
White reclaims their lost pawn. Black should follow up with /7...Bb4/, pinning White's knight and putting it on a square where it can't be kicked out by pawns.
/7...Nbd7/ is also possible, but will most likely transpose back into the main line.
Theory table
7...Bb4 8. O-O +
References
See also