Chess Coordinates is a focused, minimalist web trainer for one specific skill: instantly recognizing the names and locations of squares on the chess board. The trainer flashes square names and asks you to click the correct square on an empty board, or shows a highlighted square and asks you to type its coordinate — building the automatic fluency that strong players take for granted.

Board coordinate mastery is foundational for calculation and visualization. Without it, following written analysis, using algebraic notation, and thinking through variations all require additional cognitive overhead. Even a few minutes of daily drilling can eliminate this friction within weeks.

The site is completely free, requires no account, and loads instantly. Lichess has a similar coordinate trainer built into the platform, but Chess Coordinates offers a dedicated version for players who want to focus on this specific skill outside a larger platform.