Logic game
Signal Grid
Playable nowA compact number logic game about placing signals cleanly across a 6x6 grid. Choose a difficulty, fill the missing cells, and lock every row, column, and signal box into place.
Select Play to load Signal Grid. It only downloads when you start.
How it plays
Each puzzle starts with a handful of fixed numbers. Fill the empty cells using numbers 1 to 6 so that each row, column, and 2x3 signal box contains every number once.
Your aim
Complete the grid by placing every number correctly without breaking the row, column, or signal box rules.
Good to know
- Each row must contain the numbers 1 to 6 once.
- Each column must contain the numbers 1 to 6 once.
- Each 2x3 signal box must contain the numbers 1 to 6 once.
- Easy, medium, and hard puzzles are available from the setup screen.
- The game only loads when you press Play.
ยง Next
More games
Try another quick browser game.
Solitaire A classic Klondike-style browser Solitaire game for quiet five-minute victories, near misses, and suspiciously stubborn kings. Pyramid A quick card-pairing puzzle where players clear the pyramid by pairing exposed cards that total thirteen. Scrambled A word game with quick Free Play rounds and Theme Hunt puzzles where solved words help reveal a hidden final answer.