Playing Against the Nimzo-Indian Defense: Qc2

After 4.Qc2 c5, you have several natural-looking moves. The most popular choice in the database is e3 (26,880 games), which leads to a 50.7% score for White — decent but not the best. The engine's favourite is dxc5 (20,485 games), scoring an excellent 52.2%, and that is the only move Stockfish recommends. Two other common moves, a3 (47.8%) and Nf3 (49.5%), are playable but yield weaker results. The most dangerous trap here is that the tempting d5 and the developing Bg5 are both outright mistakes — and the statistics back that up harshly. Let's look at what works and what hurts.

Simply take the pawn: dxc5. The engine continues with dxc5 O-O a3 Bxc5, and the evaluation is +0.37 in your favour. You emerge from the opening up a pawn (temporarily) and with a solid central structure. Black gets easy development and a pawn back quickly — but White keeps a small but stable edge throughout. The score of 52.2% over 20,485 games confirms this is your strongest practical choice. It is also the only move that avoids giving Black clear counterplay. The follow-up is straightforward: after Black castles, you play a3, forcing the bishop to declare its intentions, and you recapture on c5 with the queen if needed.

The statistics are unforgiving here. d5 has been played 6,498 times and scores only 42.4% — that is a losing performance for White. The engine calls it an inaccuracy, costing you about a full pawn. Instead of a small edge, you end up worse. Why? Because after d5 Black gets ...d6 and the dark-squared bishop remains active, while you have loosened your centre without gaining anything concrete. Even worse is Bg5, played only 1,899 times and scoring a miserable 34.6%. This is classified as a blunder, losing roughly 3.0 pawns. Black can respond with ...h6, forcing you to make an awkward decision about the bishop, and the initiative swings heavily to Black. Stick to dxc5 and you will be fine.

The full picture from 94,517 games: White wins 49.1%, draws 4.1%, and Black wins 46.8%. That is a razor-thin margin in practice, even though the engine gives White a slight edge. The opening is theoretically fine for both sides, but the key takeaway is that your choice on move 5 determines everything. The engine says dxc5 is best, and the numbers confirm it yields the highest White win rate of any serious option (52.2%). By contrast, if you pick e3 (the most common move) you drop to 50.7% — not terrible, but it gives Black more equality. And if you choose d5 or Bg5, you are playing into Black's hands. The lesson: trust the capture on c5 and you will keep the pressure on.