Daily Streak
Solve a puzzle today to start your streak.
This Session
Puzzle Info
How the Puzzle Trainer Works
Each puzzle drops you into a real position from an online game where one side has a forced tactic — a way to win material or deliver checkmate. Find the best move for the side to move; if there's a follow-up, the opponent's only reply plays automatically and you continue until the sequence is complete. Get it right and your puzzle rating goes up; get it wrong (after a second try) and it goes down slightly, using the same win-probability math as the Elo rating calculator — puzzles near your current rating are served more often, so the difficulty tracks you automatically.
Your Rating & Streak Stay on This Device
There's no sign-up and nothing is sent anywhere: your rating, streak, and recently-seen puzzles live entirely in this browser's local storage, the same privacy-first approach used for Trainer Mode and board themes elsewhere on this site. That also means there's no shared leaderboard — this is a personal practice tool, not a competition. Clearing your browser data or using a different device starts you fresh.
About the Puzzles
Puzzle positions are drawn from the Lichess puzzle database, which Lichess releases into the public domain under a CC0 license. A curated set spanning beginner to advanced ratings is bundled with this site so puzzles load instantly and work completely offline once the page has loaded.