In this logic puzzle game, you complete grids by coloring tiles blue or red according to specific rules. Use this app to solve puzzles across various grid sizes with no guessing required. Includes unlimited puzzles, time trials, achievements, and leaderboards.
AppRecs review analysis
AppRecs rating 4.4. Trustworthiness 74 out of 100. Review manipulation risk 30 out of 100. Based on a review sample analyzed.
★★★★☆
4.4
AppRecs Rating
Ratings breakdown
5 star
87%
4 star
7%
3 star
2%
2 star
1%
1 star
3%
What to know
✓
Credible reviews
74% trustworthiness score from analyzed reviews
✓
High user satisfaction
87% of sampled ratings are 5 stars
About 0h n0
It's 0h h1's companion game!
Remember that little logic game called 0h h1? Well, we've made a challenging new puzzle game to go along with it! Meet its companion... 0h n0.
0h n0 is a lovely little logic game that follows its own three rules:
- Blue dots can see others in their own row and column.
- Their numbers tell how many.
- Red dots block their view.
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 n0 gives you unlimited puzzles for all grid sizes:
5 x 5
6 x 6
7 x 7
8 x 8
And now included: 4 x 4 and 9 x 9 boards! Yay :D
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 n0 is free, without ads, without social network requirements, without locked features and without nag screens. 0h n0 is a little gift to you. We hope you enjoy it.
0h n0 can also be played on 0hn0.com.
And if you haven't played its sibling yet, go visit 0hh1.com.
Remember that little logic game called 0h h1? Well, we've made a challenging new puzzle game to go along with it! Meet its companion... 0h n0.
0h n0 is a lovely little logic game that follows its own three rules:
- Blue dots can see others in their own row and column.
- Their numbers tell how many.
- Red dots block their view.
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 n0 gives you unlimited puzzles for all grid sizes:
5 x 5
6 x 6
7 x 7
8 x 8
And now included: 4 x 4 and 9 x 9 boards! Yay :D
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 n0 is free, without ads, without social network requirements, without locked features and without nag screens. 0h n0 is a little gift to you. We hope you enjoy it.
0h n0 can also be played on 0hn0.com.
And if you haven't played its sibling yet, go visit 0hh1.com.
0h n0 Screenshots
Tap to Rate:
Reviews for 0h n0
Mitchell O'Shea
12/6/2025
Similar to 0h hi, fun puzzle game. Does get a bit repetitive after some time. Would give 5 stars if the game could be expanded further, additional difficulty added (not only bigger size board), etc.
Elliot Carusone
8/24/2025
fun
