The Old Benoni with 2...Nf6 arises after 1.d4 c5 2.d5 Nf6. ECO code: A43.

Overview

This natural developing move heads toward Modern Benoni Defence structures. After c4 by White, the position often transposes into the main lines of the Benoni (A56–A79).

Strategic Themes & Plans

Black plans ...d6, ...g6, ...Bg7, and ...0-0, aiming for the classic Benoni structure with kingside counterplay via ...f5 or ...e6. White develops with c4, Nc3, e4, and seeks queenside expansion.