Blunder
Awards EntryLearn from your own mistakes.
Blunder is a modern chess training app that helps you improve by studying the mistakes you actually make. Connect your Lichess or Chess.com account, or play directly against Stockfish. Every completed game is analysed automatically, with missed tactics, inaccuracies and blunders transformed into personalised review drills. Instead of solving random puzzles, you'll revisit positions from your own games using a spaced repetition system designed to strengthen pattern recognition and reinforce better decision-making over time. Blunder keeps your training focused on the positions that matter most—your own. Features • Personalised Review — Every mistake becomes a review card you'll revisit until it's second nature. • Automatic Analysis — Import games from Lichess or Chess.com, or play against Stockfish directly inside the app. • Spaced Repetition — Learn using an evidence-based review system that reinforces positions just before you're likely to forget them. • Pattern Recognition — Build lasting intuition by repeatedly solving tactical and positional mistakes from your own games. • Progress Tracking — Watch your weakest areas improve as you master previously difficult positions. Blunder isn't another puzzle app. It's a training system built around the games you've already played, helping you spend less time analysing and more time improving.
