King's Indian Defense: Normal Variation: what should White play?

In the King's Indian Defense: Normal Variation, White's most accurate response according to computer evaluation is h3, which yields a slight +0.19 advantage. This pawn thrust immediately challenges Black's active bishop on g4 before committing White's own light-squared bishop. While Be2 remains the overwhelmingly popular choice in human games, h3 clarifies the central tension and resolves the pin on the f3 knight under favorable circumstances.

Challenging the Bishop with h3

Although Be2 has been chosen in 67.9% of the 12,428 recorded games (yielding a 46.7% score for White), engine analysis favors h3, which appears in 21.2% of games with a 47.3% score. By questioning the bishop immediately, White forces Black to define their intentions along the c8-h3 diagonal. A standard illustrative line runs h3 dxe5 Bxe5 Bxf3 Qxf3 Bxe5, where White accepts trades in the center while maintaining active piece play.

Alternatives and Central Clarifications

White can also look to release the tension with exd6, seen in 9.0% of encounters with an evaluation of -0.39 and a 44.7% score. An illustrative continuation following that pawn trade is exd6 Nxd6 Be5 Bxe5 dxe5 Nf5, which allows Black comfortable piece activity. Other attempts, such as Qb3 (played in 1.0% of games, scoring 44.0%, evaluated at -0.45) and Qe2 (0.9% of games, scoring 38.2%, evaluated at -0.76), both allow counterplay via Qb3 Nd7 Rd1 c5 dxc5 Nxc5 and Qe2 Nd7 Rd1 c5 dxc5 Nxc5, leaving White under slight pressure.