411 REFERENCE · Wikibooks
Chess Opening Theory/1. d4/1...d5/2. c4/2...c6/3. Nc3/3...Nf6/4. Nf3/4...e6/5. Bg5/5...dxc4/6. e4/6...b5
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Botvinnik variation D44 Botvinnik variation
6...b5
Black fortifies the c pawn, but allows White to continue with /7. e5/. While this may look scary, Black does have a way out.
Theory table
all 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5
References
See also