Openings guide
Chess openings explained.
A chess opening is the first phase of the game, where both players fight for useful squares, safe kings, and pieces that can actually join the game. Good opening play is not about reciting a perfect script. It is about reaching positions where your next moves make sense.
What an opening should do
Most sound openings solve the same problems: bring pieces out, contest the center, keep the king safe, and avoid moving the same piece too often without a reason. The details change, but those goals are the anchor.
How ECO codes help
ECO codes group openings from A to E. A covers flank openings, B covers many replies to 1.e4, C covers open games after 1.e4 e5, D covers queen-pawn systems, and E covers Indian defenses. The code is a filing system, not a judgment of quality.
Study plans before traps
Traps are memorable, but plans win more games. For each opening you play, learn the pawn breaks, the pieces that usually trade, and the squares your minor pieces want. Then use the drill on an opening page to make the move order reliable.
Start studying
Browse the ECO library, choose a line that appears in your games, and practice it until you can play it without hints.
Browse openings