Italian Game: Two Knights Defense: what should White play?

In the Italian Game: Two Knights Defense, White faces a symmetrical and highly theoretical position where the most statistically successful choice is h3, which maintains a slight engine evaluation of +0.00 and has been played in 74,000 recorded games. While b4 is the most frequent continuation, appearing in 49.3% of the 297,004 games at this position, it leads to a slightly lower engine evaluation of -0.13. White generally seeks to consolidate the center or expand on the queenside while managing the tension between the minor pieces on c4 and c5.

Strategic Objectives for White

The move d3 is a solid alternative played in 16.6% of games, resulting in an engine evaluation of +0.03. This move reinforces the e4 pawn and prepares a slow maneuvering game, often leading to the line d3 a5 h3 Be6 Bxe6 fxe6. By contrast, the most popular move b4 immediately challenges the c5, forcing it to the b6 square as seen in the sequence b4 Bb6 d3 Nd4 Nxd4 Bxd4.

Prophylaxis and Development

Choosing h3 serves a prophylactic purpose, preventing Black from pinning the f3 with a future bishop development to g4. White scores 51.9% from this position, the highest among the primary options. The engine suggests that after h3, the game often transitions into a structure involving h3 a5 d3 Be6 Bxe6 fxe6, where White accepts doubled pawns for Black in exchange for central control.

Rare and Engine Alternatives

While human players heavily favor b4, the engine identifies Rb1 and Kh1 as playable but less optimal alternatives, both having zero recorded games in this specific database. Rb1 carries an evaluation of -0.11 and prepares for queenside action, while Kh1 at -0.25 is a deep waiting move. These lines typically involve Black responding with active piece play, such as Bg4 or centralizing the knight with Nd4.