Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

RGB Logic (Buchstabensalat) Screenshots

iPad

iPhone

About RGB Logic (Buchstabensalat)

RGB logic is a bit like a colorful, simpler Sudoku (but it can actually be really tricky). Simply arrange the colors so there is one of each in every row and column and the arrangement matches the clues on the outside.

A tutorial gently introduces the rules of the game.

There are 10 brand new free puzzles of varying difficulty every day.

You can share any puzzle (even with people who don't have the App yet).

There are also modes called 18, 24 and 50 where you have precisely that number of moves and a ticking clock to solve puzzles. Just one mistake and you won't be able to complete the puzzle.

A one off in app purchase unlocks the full set of 20 puzzles every day and the 24 and 50 modes.

What's New in the Latest Version 4.1

Last updated on Oct 9, 2021

Old Versions

Introductory tutorial shows the tips on the main game screen rather than via a pop up message (so you can most easily read as you learn).

Don't offer to share the introductory tutorial puzzles on completion.

Bugfix for sharing a puzzle (after completion).

Version History

4.1

Oct 9, 2021

4.0

Sep 1, 2021

Many behind the scenes improvements. Support for dark mode.

3.1

Jan 31, 2018

This app has been updated by Apple to display the Apple Watch app icon.

New sharing option on completing a puzzle. Better iPhone X support.

3.0

Oct 25, 2017

Share puzzles with your friends. You can now share any puzzle in RGB Logic.

Plus minor bugfix and various behind the scenes updates.

2.2

Jun 27, 2017

Tweaks and improvements.

2.1

Apr 4, 2017

New 7x7 (5 color) puzzles
More 6x6 (4 color) puzzles
Bugfix (was accepting some solutions which weren't solutions)

2.0

Oct 14, 2016

New modes 18, 24 and 50 where you have precisely that number of moves and a ticking clock to solve puzzles. Just one mistake and you won't be able to complete the puzzle.

New 6x6 puzzles. These puzzles have additional clues with some squares fixed as blanks adding an extra layer to the game.

Now the first 10 puzzles are free each day, along with the 18 mode.

A one-off in app purchase unlocks all puzzles each day and the 24 and 50 modes.

1.1

May 3, 2016

Longer, easier tutorial
Broader selection of difficulties in daily puzzles
Now on iPad

1.0

Mar 31, 2016

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