Solve logic grid puzzles similar to Einstein's famous zebra puzzle ("Who has the fish?") on your iPad, iPhone or Apple TV!



36 riddles:
• 15x easy (4 values per category)
• 6x medium (5 values per category)
• 15x hard (5 values per category)
• additional levelpacks available via in app purchase

3 layouts:
• classic
• wood
• night
each in the variants
• full/empty
• plus/minus
• check/cross

2 languages:
• german
• english

easy solving of riddles by tapping:
• tap once for "does not match"
• tap twice for "matches"

additional features:
• timer and Game Center support
• current state can be checked at any time
• solving table as assistance for a better overview (iPad only)

completely free of advertising!

compatible devices:
• iPhone 5 or newer
• iPad
• iPad Pro
• Apple TV 4
(requires iOS9/tvOS9 or higher)


If you like the app, please leave me a good review!

If you have questions, problems or suggestions, please contact me by email to

Follow me on Twitter: #luethslogicals

New riddles are in progress and coming soon!

What’s New

Version 5.1.1

• BUGFIX: some devices with iOS9 crashed while opening the in-app-shop

If you like the app, feel free to add an app review. If you have problems or suggestions for improvement, please contact me by sending an e-mail to
I wish you a lot of fun while solving the new puzzles!

Ratings and Reviews

4.4 out of 5
41 Ratings
41 Ratings
madmd75 ,

the hard is not hard

format is good, however

Keishau ,

Fun and challenging

Great fun!

In-App Purchases

X01: MegaPack Vol. 1
contains all 60 puzzles of L01, L02, L03, L04
L01: PuzzlePack Vol. 1
2x easy • 5x medium • 8x hard
L02: PuzzlePack Vol. 2
3x easy • 5x medium • 7x hard
L03: PuzzlePack Vol. 3
5x easy • 5x medium • 5x hard
L04: PuzzlePack Vol. 4
5x easy • 5x medium • 5x hard
L05: PuzzlePack Vol. 5
4x easy • 5x medium • 6x hard


Christian Lueth
32.5 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch. Apple TV.
English, German
Age Rating
Rated 4+
© 2018 Christian Lüth
In-App Purchases
  1. X01: MegaPack Vol. 1 $6.99
  2. L01: PuzzlePack Vol. 1 $1.99
  3. L06: Puzzle Pack Vol. 6 $1.99


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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