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selected games

GM Erdos is playing in a St Louis RR and is off to a quiet start

Naroditsky-Erdos

London System

St Louis Winter A 2019 Rd1

After 21.Rf2(Diagram)

Black is going about his business of snuffing the life out of the game and taking no risk. Black has a safe structure with a sensitive but not weak e6-pawn while White’s kingside is a bit suspicious. The Nf5 is more active than its counterpart but the issue now is can Black aim for more than just holding his ground

What do you recommend for Black(probably there is more than one good move) as there is not much happening in the position.

After 21.Rf2