0h h1

0h h1 is a super simple but extremely "brain-hacking" logic puzzle game belonging to the minimalist puzzle genre. Although it looks gentle and cute with two colors, red and blue, inside it hides a system of challenging logic rules.

How to play game 0h h1

You will play on an 8x8 square grid; each cell can be red or blue.

Your task is to fill in the blank cells with colors to satisfy the following 3 rules:

There are no 3 consecutive cells of the same color in a row or column.

Each row and column must have an equal number of red and blue cells.

In an 8x8 board, each row must have 4 red cells + 4 blue cells.

There are no two rows or two columns that are exactly the same: Need diversity in models, no duplication.

You click on the blank cell to change the color: switch between red, blue, or leave it blank.

When you fill in the wrong answer, the game will warn you by highlighting the red border, helping you recognize the rule that is violated.

Try it now to see how many questions you can conquer with 0h h1!