What changed

History

1. 0.3.02026-09-25
   • NewYou can now play on your own. Pick Play the computer and choose a level from 1 to 6; 1 is the weakest.
   • NewAgainst the computer you can take back moves, and a refresh picks the game up where you left it.
   • NewTwo players can now share one phone or tablet: open Two players and take turns on the same board.
   • NewFinished games against the computer or on one device now have a Review button. It marks inaccuracies, mistakes and blunders and shows a better move on the board.
   • NewA Hint button while you play the computer or a friend on one device: the first press shows which piece to move, the second shows where.
   • NewNew: 3-minute puzzles. Solve as many as you can before time runs out; they get harder as you go, and three wrong moves ends the run.
   • NewYour record against each computer level is shown after every game. Beat a level and the next one is one tap away.
   • NewGames with a friend can be reviewed too, once they are over. The button does not appear during a game.
   • NewNew: an analysis board. Move either side, branch off from any move, paste a PGN or FEN, and see the evaluation and best move for each position.
   • NewFinished games now stay in My games — the last 30, in this browser. Open any of them in the analysis board.
   • NewNew: Learn. Thirteen short lessons where you make the moves — how each piece moves, capturing, check and checkmate, castling, en passant, promotion and stalemate.
   • NewNew: Train. Practise basic mates and endgames against the computer — king and queen, king and rook, two rooks, king and pawn, and the Lucena position — within a move limit.
   • ChangedThe menu is now Computer · Two players · Puzzles · Learn · Train. The rules and guides live under Learn.
2. 0.2.32026-09-19
   • NewA Share button on the puzzle page. The link you send shows the board itself, so people see the position before they open it.
   • ChangedThe shared link always asks the puzzle, never announces that you solved it — the person opening it has not.
3. 0.2.22026-09-18
   • NewThe daily puzzle now carries its date in the address, so a link you share opens the same puzzle even tomorrow.
   • NewAfter you solve a puzzle or show the answer, you can step through the moves. The ← and → keys work too.
   • NewTurn on “Go to the next puzzle when solved” and the next one opens as soon as you finish.
   • ChangedOn phones the puzzle board sits higher, and whose turn it is shows with a king and larger text.
   • ChangedMove sounds are now twice as loud.
   • FixedOn wide screens the Hint, Show answer and Next puzzle buttons were squashed flat. They are full height again.
4. 0.2.12026-09-17
   • NewPlay Chess is now available in 18 languages, including Japanese, Chinese, Spanish, German and Arabic.
   • NewCheckmate patterns now include Anastasia's mate, Boden's mate and Légal's mate, the opening trap, each with a board.
   • NewThe rules page has a short table on how checkmate and stalemate differ.
5. 0.2.02026-09-17
   • NewChess puzzles: one daily puzzle, then as many easy, medium or hard ones as you like. There are about 30,000, from the lichess open database.
   • NewStuck on a puzzle? Hint marks the piece to move, and Show answer plays the move for you.
   • NewFour guides with board diagrams: openings, tactics, checkmate patterns and endgames.
6. 0.1.02026-09-16
   • NewPlay a friend by sending a link or showing a QR code. Neither of you needs an account.