MATRIX PORTAL M_PORTAL 🎃

Tools Puzzles Maze Leaderboard Workshop Elite Log in Register

Halloween at the Portal. The Hollow, a haunted cipher maze, is free to play until 2 November. Enter The Hollow

Universal Logic Grid

Dynamic Logic Puzzle Solver

Home / Tools / Universal Logic Grid

Create Custom Logic Grid

Build your own logic grid puzzle by filling in the form below:

Puzzle Title:

Row Labels (comma-separated):

Column Labels (comma-separated):

Clues (separate with | pipe character):

Instructions:

Enter a title for your puzzle
Add row and column labels separated by commas
Optionally add clues separated by the pipe character (|)
Click "Generate Grid" to create your custom logic puzzle
Share the URL with others to let them solve your puzzle!

Clues

How to Use:

Click cells to cycle through states: Empty → Check (✓) → Cross (✗) → Empty
Check (✓) marks a confirmed match between row and column
Cross (✗) eliminates impossible combinations
Your progress is automatically saved to this browser
Use the clues above to deduce the correct matches
Click "Share Puzzle" to get a URL you can send to others

×

Share This Grid

Copy this URL to share your puzzle:

© 2026 Matrix Portal | What's new | Privacy | Terms | Contact