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.
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.
Ready to play?
Press Play to load the game. The page stays light until you choose to start.
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