411 REFERENCE · Wikibooks
Chess Opening Theory/1. d4/1...Nf6/2. c4/2...g6/3. Nc3/3...d5/4. cxd5/4...Nxd5/5. e4/5...Nxc3/6. bxc3/6...Bg7/7. Nf3/7...c5
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Grünfeld Defence
7...c5
This move is the key pawn lever, taking advantage of the diagonal. Note that the long diagonal is weak. Without this lever, d4 would be indestructible and the Grünfeld defence would be unsound. White has four main moves, the most theoretical being /8. Rb1/.
Theory table
8. Rb1 O-O 9. Be2 cxd4 10. cxd4 Qa5+ 11. Bd2 Qxa2 8. Be2 Nc6 8. h3 O-O 9. Be2 cxd4 10. cxd4 Nc6 11. Be3 8. Bb5+ Nc6 9. O-O O-O
See also
Grünfeld Defence