Queen's Pawn Game: London System, with e6: what should White play?

In this standard position from the Queen's Pawn Game: London System, with e6, White's most robust and widely played continuation is c3. This pawn thrust fortifies the center, blunts Black's pressure against the d4 square, and secures an engine evaluation of +0.20. Chosen in 70.6% of recorded games (1.08M recorded), c3 provides White with a 54.0% scoring rate while maintaining a reliable classical structure.

The Strategic Value of c3

The primary objective of c3 is establishing a rock-solid pawn wedge alongside d4 and e3. This structure effectively neutralizes counterplay along the c-file and gives White the option to preserve the dark-squared bishop if challenged. In an illustrative engine continuation, play develops along the sequence c3 Nf6 Nbd2 Nh5 Bg5 f6, demonstrating how White can handle an immediate attempt by Black to contest the bishop on f4.

Alternative Minor Piece Developments

White can also bypass the immediate pawn move in favor of faster piece mobilization. The pin Bb5 represents the second most common choice, occurring in 13.9% of games (213K recorded) with an evaluation of +0.17 and a 49.8% White score. An illustrative line runs Bb5 cxd4 exd4 Bd6 Bxd6 Qxd6, leading to an early exchange of bishops. Alternatively, developing the knight via Nbd2 is seen in 8.3% of games (128K recorded, +0.16 evaluation, 52.1% score), where Nbd2 Bd6 Bg3 Bxg3 hxg3 Qb6 shows Black challenging the kingside structure.

Additional Bishop Options

Other variations feature the light-squared bishop developing to alternative squares on the kingside. White opts for Bd3 in 3.9% of games (59K recorded), scoring 50.3% with an evaluation of +0.16; an illustrative line continues Bd3 Nf6 O-O Qb6 b3 Nh5. Finally, the modest Be2 accounts for 3.3% of games (51K recorded) with an evaluation of +0.20 and a 52.5% score, where Be2 cxd4 exd4 Bd6 Bxd6 Qxd6 mirrors the central clarification seen in the b5-bishop lines.