Indian Defense: West Indian Defense: what should Black play?

In the Indian Defense: West Indian Defense, the optimal choice according to engine evaluation is c5, which strikes immediately at the White central pawn wedge. Although O-O and d6 are substantially more frequent in practice, c5 offers an engine evaluation of -0.10 while White scores only 44.7% across 9.4K recorded games. By challenging the d4-square without delay, Black directly tests White's setup before completing kingside development.

Counterplay with c5

The move c5 appears in 2.1% of the 450,223 recorded games in this position. In the engine main line c5 d5 b5 cxb5 a6 bxa6, Black initiates queenside friction resembling Benko-style structures. By confronting the d4 pawn immediately, Black disrupts White's control over the center and seeks active piece play along the flank.

Popular alternatives: O-O and d6

The vast majority of games continue along more classical paths. The move O-O represents 52.6% of database entries (237K games) with an evaluation of +0.01, leading to lines like O-O Nc3 d5 Rc1 dxc4 e4, where White scores 47.4%. Alternatively, d6 covers 37.9% of games (171K recorded) with an evaluation of +0.03, often proceeding through d6 Nc3 Bf5 e3 Ne4 Nxe4 with White scoring 47.8%.

Other central responses

Black may also opt for d5, played in 6.8% of games (31K recorded), which transposes into central symmetry evaluated at +0.00 via d5 Nc3 O-O Rc1 dxc4 e4 where White scores 50.0%. Finally, the provocative Nh5 appears in 0.6% of games (2.7K recorded) with an evaluation of +0.13, challenging the bishop directly in lines such as Nh5 Bc1 O-O e4 d6 Nc3.