Tying the knight on b6 to the defence of the c4-pawn to prevent ...Nc8 and ...b7-b5.
6...Rd7 7.Nf1 Rfd8 8.Ne3 Kh8 9.Qb2 g5?! 10.Rf1 cxb3 11.axb3 Rg8 12.Bd3 Qf8 13.Ne2
This loses at once.
White should have played 8.b3 although after Qa8+! 9.Kg1 c3 Black would have a clear advantage.
White should have played 8.b3 although after Qa8+! 9.Kg1 c3 Black would have a clear advantage.