Chessicous teaches chess the way the best language apps teach words: short lessons, instant feedback, and a streak that keeps you coming back. Our mascot Pip is a pawn with a dream of reaching the last rank. Walk the course with Pip and you’ll both get promoted.
What’s here
- The course: from how the pieces move to rook endgames, opening repertoires and attacking play.
- Puzzles: tens of thousands of rated puzzles, sorted into themes like forks, pins and back-rank mates.
- Opening explorer: every named opening, with practice drills.
- Endgame trainer: must-know endgames against a perfect tablebase defender.
- Play Stockfish at ten strength levels, and review your games move by move.
Credits and licenses
Chess analysis is powered by Stockfish 19 via stockfish.js, which runs in your browser. Stockfish is free software licensed under the GNU GPL v3; its source code is available at github.com/official-stockfish/Stockfish and github.com/nmrugg/stockfish.js.
Puzzles come from the Lichess puzzle database and opening names from lichess-org/chess-openings, both released under CC0. Endgame drills use the Lichess Syzygy tablebase. Thank you, Lichess!
Say hello
Ideas, bugs, or a favourite opening we should cover? Email hello@chessicous.com.