Chess, for two players or against the computer
A board of 64 squares, 16 pieces per side and a single goal: checkmate the opponent's king. This site explains the rules and trains you with verified positions. In the works: Échecs, for playing two-player on the same device, against the computer on 8 levels or with a friend remotely, offline and without an account.
The app has not been released yet. iPhone and iPad versions and an Android version are planned; no release date has been announced.
On phone and tablet
Screenshots of the app's test version, a two-player game on the same device. The app is designed for phone and tablet, in portrait and landscape; there is no desktop-format screenshot.
Where to start?
The rules
How the pieces move, checkmate, castling, en passant, promotion and all the draws, with diagrams.
Learn
Getting started with the app, playing with a friend, then a few tips to play better.
Worked exercises
6 positions for beginners: mate in one, mate or stalemate, castling, en passant and promotion.
Frequently asked questions
Offline play, account, remote games, computer levels, draw by repetition.
Chess in a few lines
Two players, White and Black, take turns. Each piece has its own movement: the rook in a straight line, the bishop diagonally, the queen both, the knight in an L, the king one square, the pawn straight ahead.
A king under attack is in check; if it cannot escape, it is checkmated and the game is lost. Three special moves often surprise beginners: castling, en passant and promotion.
A game can also end in a draw: by stalemate, for lack of pieces to checkmate, by repetition of the same position or after a long series of moves without a capture. To get off to a good start, try the worked exercises.