DenkArena · Chess & logic

Chess.Reimagined.

Play chess, review your moves and learn from your games. Then try Wandelzug, our puzzle where your piece changes with every move.

Coming soon to Google PlaySee the app

The app is in testing right now. Want to join the test? Email us at support@denkarena.com.

WandelzugTry a short example

Collect all three coins. Select the piece, then tap a marked square – or drag it straight there.

RookBishopKnight
0 / 3 Coins

Moves: 0 · Best: 3

Select the piece.

A different piece after every move.Meet Wandelzug ↗

240Wandelzug levels
800+chess puzzles
10chess strength levels
8languages

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.

Screen: Wandelzug

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.

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Choose a section to see how it works in the app.

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Game analysis

Understand your mistakes

Revisit important moments in a game. Analysis suggests better moves and explains what they change.

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Wandelzug

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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Chess

Focus on your game

The board, clock and moves in one place. Play the computer, with a friend or online.

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Chess puzzles

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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Sudoku

Room to work things out

Enter numbers, note possible candidates and choose whether mistakes are shown immediately.

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Home

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

Daily streak

Solve the daily Wandelzug puzzle and keep your streak. Jokers save it if you miss a day.

Chess ratings and leagues

Separate online chess ratings for Bullet, Blitz and Rapid. Compete with friends in weekly leagues.

Achievements and profile

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.

Share 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 without an account

Play puzzles and computer games without an account. Online chess and progress backups require a free account: email and code, no password.

No ads in the middle of a game

Ads only appear between games, never while you play.

Premium for €0.99 a month

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.

Easy to read

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

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