Line 120 covers the main line of the Classical Variation of Modern Benoni.
A highly investigated sharp line occurs after 7… Bg7 8. h3 O-O 9. Bd3 b5. White now has two main options: the first is 10. Bxb5, and after the forced 10… Nxe4 11. Nxe4 Qa5+ 12. Nfd2 Qxb5 13. Nd6 Qa6 Black has sufficient compensation; the second is 10. Nxb5, where after 10… Re8 11. O-O Nxe4 12. Re1 a6! Black should be doing fine, too.
[Diagram: White to Move] Black has sacrificed a piece, but he is ready to recapture it. How should White proceed?
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