Starting Position: what should White play?

The starting position of a chess game, classified under ECO C50, presents White with several viable options to claim a central advantage or initiate a specific strategic structure. The most frequent choice is e4, played in 59.1% of over 6.8 billion recorded games, as it immediately controls the d5 and f5 squares while liberating the f1 and d1. While e4 is the most popular, the engine identifies Nf3 and d4 as statistically strong alternatives, both yielding a White scoring percentage of over 52%.

Primary Central Advances

The move e4 remains the standard opening choice, leading to diverse structures such as the Sicilian Defense after e4 c5 Nf3 Nc6 d4 cxd4. It carries an engine evaluation of +0.25. Alternatively, d4 is selected in 25.3% of games, often resulting in the Queen's Gambit or various Indian Defenses, such as the line d4 Nf6 c4 e6 Nf3 d5. This move focuses on solid central control and typically leads to more closed, positional struggles compared to the open lines of the King's Pawn openings.

Flank Openings and Hypermodern Options

White may opt for the English Opening with c4, which accounts for 3.3% of games and carries an evaluation of +0.07. This move avoids early central liquidations and often transposes into lines like c4 e5 g3 Nf6 Bg2 c6. Similarly, Nf3 is a flexible developing move played in 3.6% of games, maintaining a high win rate of 53.4%. It keeps White's options open, frequently leading to the Réti Opening or transposing back into d4 systems.

Fianchetto Developments

The move g3 is a hypermodern choice played in 1.7% of games, preparing to place the f1 on the long diagonal. With an engine evaluation of +0.08, it often leads to the King's Indian Attack or lines similar to g3 e5 c4 Nf6 Bg2 c6. This approach prioritizes long-term pressure from the flank rather than immediate occupation of the center with pawns.