0h h1

Q42

In-app purchases

About this game

0h h1 is a little logic game that follows three simple rules:

- Three red tiles or three blue tiles next to each other in a row or column isn't allowed
- A full row or column must have as many blue tiles as it has red ones.
- No two rows are the same. No two columns either.

It's up to you to complete the grid without ever having to guess. Simply tap a tile to make it blue or red and complete the grid.

0h h1 is 100% free, without ads or locked content and gives you unlimited puzzles in these grid sizes:

4 x 4
6 x 6
8 x 8
10 x 10
12 x 12

Each puzzle can be played in perfect Zen mode without any pressure. But you can attempt to beat your personal best time in the game's time trials, unlock fun achievements and compete with friends in leaderboards.

0h h1 is akin to Binary Sudoku, also known as Takuzu, Binairo or Binaire.
0h h1 is a little gift to you. I hope you enjoy it.
0h h1 can also be played on 0hh1.com.

And don't forget to check out its sibling game 0h n0! 0hn0.com

Ratings and reviews

I really enjoy this app. It is nice as part of my morning routine just to get my mind working. The grayscale theme is my favorite One thing I really wish there was in it is a way to completely clear the screen for your current puzzle. It is sometimes annoying to have to press the undo button multiple times in those cases. Overall, the game is good, it just needs a full clear button.

Amazing puzzle game! It can either be relaxing or exciting depending on how you play it: back when I started, I loved the huge boards, but now I like to beat the small boards as fast as possible, my best time being 2s on 4x4! I love this game so much, it introduced me to a great developer who I will surely be paying attention to from now on. I just wish there was some sort of way to connect with its community! But I guess that's nothing wrong with the game. Overall it's awesome, love it!!

The simplicity of it is genius!! Love the fact that it requires a little thought to complete the larger ones. A well developed game at its most basic level !!! Doesn't take a lot of space & yet is so addicting to play, without bells & whistles. My first thoughts were oh, this is gonna be a boring download, yet it was far from it & honestly has be coming back to it as one of my favorites when I'm wanting to escape the days stress. I def love it for so many reasons.