After 6...Nxc3?! 7.Qb3 Nb5 8.Bb2 0-0-0 9.f5 White gets some initiative – Botvinnik.
Thanks to his safer king and superior minor piece, Black has a clear advantage.
Initiating favourable exchanges in order to install an eternal knight on d5.
Forcing the exchange of the other knight, thus eliminating the last defender of the d5-square.
Preparing Nc2-e3-d5 with a typical "good knight vs. bad bishop" scenario.
Swapping the active bishop on h6, as a first step to a future position with good knight vs. bad bishop.