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The image features the phrase Oh no in a stylized font above two overlapping circles: one turquoise and one red
The image features the phrase Oh no in a stylized font above two overlapping circles: one turquoise and one red

0h n0

The image features the phrase Oh no in a stylized font above two overlapping circles: one turquoise and one red

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About 0h n0

Figure out the number of blue and red dots on the field in this minimalist logic puzzle!

If you like classics like Minesweeper, you’ll enjoy 0h n0. Your mission in this logic puzzle is to figure out which dots should be blue and which should be red across the grid. Here’s how it works: blue dots “see” other blue dots in the same row and column, and the number shows how many they can spot. Red dots block their line of sight. Fill out the grid and get all the dots in the right spots to solve the puzzle. Ready for a real brain workout?

The 0h n0 game on Play123 has a leaderboard for saving scores.

Game Publisher: Famobi

More Games Like This

Looking for more brain-teasers like 0h n0? I totally got hooked on 0h h1 - it has similar logic-based gameplay but with red and blue tiles. For another mental workout try Get 10 Plus where matching numbers becomes seriously addictive. The Number Games collection has tons more puzzlers that will keep your mind sharp. I also had fun with Connect Dots which puts a fresh spin on classic puzzle mechanics.

Gameplay Video

Ratings and Reviews

James D
James D

author

A Brain-Teasing Puzzle with Colorful Twists

3.2
Have you ever just wanted a puzzle game that vacillated between pleasant and infuriating? Enter 0h n0, a brain tickler that will probably leave you feeling impressed, and a little confused. Visuals here are an absolute treat; imagine if the classic vibe of Minesweeper got doused with a healthy layer of blue & red paint.

The rules are wonderfully simple: you have a grid, you have blue dots that you can count on, and red dots that enjoy playing peekaboo. But don’t be fooled by the minimalist design: the challenge ramps up fast, with blue dots signifying how many more blues they themselves can be ‘observed’ by. Still those damn red dots get in the way quicker than a cheeky brother helps you.

I plunged in, imagining I would be solving this logic puzzle in a heartbeat. I had to take my hat off to the creators for that because the puzzles had me scratching my head more than a few times and this is no walk in the park. And judging by the incomings from the gaming world, I was far from alone in this 'ah-ha! and 'oh-no!' moments. People have found this cute puzzle game exercises your brain in a lot of ways with just a few levels to get through during day.

And while it won’t exact a white-knuckle test, it’s a fun, engage-your-brain kind of jog worth taking.

And speaking of scores, you can save and compare them on Play123, so you may find yourself competing silently with other puzzle enthusiasts. You’re in for an engaging time with 0h n0, where the blues and reds will definitely have you seeing colorful patterns in your dreams.

Review 317 - 0h n0
5.0

Number of votes: 3