Neo-Old Indian / Modern: 3.Bf4: what should White play?

In the Neo-Old Indian or Modern Defense variation with 3.Bf4, White's most active and engine-preferred continuation is c4, which claims space in the center and provides an evaluation of +0.37. Played in 38.7% of recorded games (34K recorded), this advance stakes an early claim on the d5-square and discourages immediate central breaks by Black. White retains a solid positional advantage while preparing to develop the remaining queenside pieces.

Strategic Objectives of the C-Pawn Push

Advancing the c-pawn with c4 clamps down on key central squares and establishes classic Queen's Pawn spatial control against Black's flexible setup. An illustrative engine continuation demonstrates this approach through c4 Nd7 h3 e5 Bh2 Ngf6, where White creates a retreat square for the f4 bishop before Black challenges the center. By maintaining a firm pawn on c4, White blunts counterplay and preserves an enduring spatial grip.

Popular Alternative Setups

Although c4 is the engine's primary recommendation, practical play frequently features the classical development Be2. This modest developing move is White's most common choice in the database, appearing in 48.6% of games (43K recorded) with an evaluation of +0.32, as seen in the sample path Be2 Nc6 O-O e5 dxe5 Nxe5. Other aggressive setups include e4 (eval +0.44), expanding the pawn center immediately, and Nc3 (eval +0.41), which is chosen in 12.7% of games (11K recorded) to prepare central advances while following lines like Nc3 Nd7 e4 a6 a4 b6. White may also choose Qd2 (+0.43), supporting queenside expansion and piece coordination along the Qd2 Nd7 Nc3 a6 e4 b5 pathway.