Indian Defense: what should Black play?

In this position arising from the Indian Defense, Black's most critical and engine-favored response is c5, immediately challenging White's central setup with an even evaluation of +0.00. While alternatives such as e6 and d5 are played with far greater frequency, striking at the d4 pawn provides Black with full equality and dynamic counterplay. Across approximately 3.50M recorded games, this early pawn push offers Black the lowest scoring rate for White among the major choices.

Strategic implications of 2...c5

Choosing c5 takes advantage of White's modest setup involving the pawn on c3, which occupies the natural developing square of the b1. Although played in only 14.4% of recorded games (503K recorded), it restricts White's scoring rate to 49.6%. The engine's illustrative continuation runs c5 d5 e6 c4 b5 Nf3, demonstrating how Black can swiftly challenge White's spatial control in the center and on the queenside.

Classical alternatives with 2...e6 and 2...d5

The vast majority of players opt for more conventional setups. The most popular choice is e6, selected in 46.8% of games (1.64M recorded, eval +0.12), where White scores 52.5% and the engine highlights the line e6 Bg5 c5 e3 b6 h3. Meanwhile, d5 is the second most common move at 36.6% (1.28M recorded, eval +0.05), resulting in a 50.9% score for White alongside the line d5 Nf3 c5 dxc5 e6 Be3. Both variations lead to solid, symmetrical pawn structures rather than immediate central tension.

Minor tries: 2...c6 and 2...h6

Less frequent responses keep the game within standard defensive parameters but concede minor tempos. The solid c6 appears in 1.9% of games (67K recorded, eval +0.05), leading into the line c6 Nf3 d5 Bf4 Bf5 Qb3 with White scoring 52.9%. The prophylactic h6 is seen in only 0.3% of games (9.9K recorded, eval +0.13), with White scoring 50.5% after h6 e3 d5 Bd3 e6 Nd2.