Chess.Reimagined.
Play chess, review your moves and learn from your games. Then try Wandelzug, our puzzle where your piece changes with every move.
The app is in testing right now. Want to join the test? Email us at support@denkarena.com.
Collect all three coins. Select the piece, then tap a marked square – or drag it straight there.
Moves: 0 · Best: 3
Select the piece.
A different piece after every move.Meet Wandelzug ↗
Wandelzug: every move transforms your piece
Collect coins with a piece that changes how it moves after every turn. The pieces move as they do in chess, but the goal is different.

Collect all the coins
Land on every coin square with your piece. The fewer moves you need, the more stars you get.
Your piece changes
After every move it becomes the next piece in the sequence, for example from rook to bishop and then to knight.
Levels, workshop and daily puzzle
240 levels in twenty chapters, 96 of them free, and every day a puzzle that is the same for everyone. In the workshop you build your own levels and share them by code.
Portals, gates with keys, stamp squares and numbered coins gradually add new rules.
The games
Chess
Play the computer on ten difficulty levels, with a friend on the same phone or against players online with a chess clock. Games through “Find an opponent” count towards your chess rating; games with friends by code are unrated.
Game analysis
After the game, analysis highlights important mistakes and better moves. Revisit those positions in mistake training and find a better move yourself.
Learn chess
13 short lessons: how each piece moves, how to capture, escape check and deliver mate. At the end you play your first game.
Chess puzzles
Over 800 verified checkmate puzzles, from mate in 1 to mate in 3. Solve the daily puzzle or try the three-minute sprint.
Sudoku
120 Sudokus, grouped by the technique you need to solve them. With notes, hints and optional mistake checking.
Minesweeper and Connect Four
Minesweeper where every board can be solved without guessing. Connect Four against the computer on four levels.
A closer look at DenkArena
Choose a section to see how it works in the app.
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Understand your mistakes
Revisit important moments in a game. Analysis suggests better moves and explains what they change.
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Your piece changes with every move
Collect the coins and plan for your next piece. The fixed sequence shows how your piece will change.
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Focus on your game
The board, clock and moves in one place. Play the computer, with a friend or online.
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Find the decisive move
Practise checkmate puzzles without a time limit. If you view a solution, you can follow it on the board.
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Room to work things out
Enter numbers, note possible candidates and choose whether mistakes are shown immediately.
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Get back to your game
Continue an unfinished game, choose something to play or solve the daily puzzle. Keep track of your progress.
Keep going
Solve the daily Wandelzug puzzle and keep your streak. Jokers save it if you miss a day.
Separate online chess ratings for Bullet, Blitz and Rapid. Compete with friends in weekly leagues.
Statistics for every game, achievements with titles and frames you cannot buy in the shop, and a thinking profile that summarises your progress in the games.
Send a chess game as a link. Anyone who opens it can replay it move by move and play on themselves.
Made fair
Play puzzles and computer games without an account. Online chess and progress backups require a free account: email and code, no password.
Ads only appear between games, never while you play.
No ads, additional levels in Wandelzug, Sudoku and chess puzzles, all computer difficulty levels and the option to publish your own levels. Cancel at any time.
Large text and a high-contrast mode are available in Settings.
Frequently asked questions
What does DenkArena cost?
The app is free and shows ads now and then, but never during a game. Premium costs €0.99 a month. Cancel at any time.
Do I need an account?
You can play puzzles and computer games without one. A free account is needed for online chess. It also lets you back up your progress and transfer it to another phone.
Is DenkArena available for iPhone?
At the moment DenkArena is only available for Android.
What data do you store?
Only what the app’s features need. All details are in the privacy policy.
How can I delete my account?
In the app under Settings, or on the delete account page.
Have a question, an idea or a bug to report?
Write to us, we read every message.
support@denkarena.com