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...b5/7. e5/7...h6/8. Bh4/8...g5/9. Nxg5/9...hxg5/10. Bxg5/10...Nbd7
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Botvinnik variation D44 Botvinnik variation
10...Nbd7
Black defends the knight on f6 again to prevent 11. Bxf6 forking the queen and the rook.
This is the first big branching point in the Botvinnik variation. White has two main options.
/11. g3/, the Lilienthal variation, delays capturing the knight on f6 and prepares to fianchetto White's light-squared bishop.
/11. exf6/ takes the hanging knight immediately. While it often transposes back into the Lilienthal, it gives Black more options to deviate from the Lilienthal.
Theory table
all Lilienthal variation 11. g3 Bb7 12. Bg2 Qb6 13. exf6 O-O-O 14. O-O 11. exf6 Szabo variation 11. Qf3 Bb7 12. Be2
References
See also