Smaller boards, around 5×5, with more obvious rectangle combinations to get started.
Divide the grid.
Fit every clue.
Gridlock is a daily logic puzzle where every number defines the exact area of one rectangle.
- Category
- Logic
- Play time
- 3–10 minutes
- Format
- Daily puzzle
- Difficulty
- Easy · Medium · Hard
- Input
- Mouse, touch, or trackpad
One grid. One clue per rectangle.
Read the clues
Each number tells you the exact number of cells in its rectangle.
Draw a rectangle
Create a rectangular region containing that numbered clue.
Use every cell
The entire board must be divided into rectangles with no gaps or overlaps.
Keep one clue in each region
Every completed rectangle must contain exactly one numbered clue.
A clue of 6 must sit inside a rectangle of exactly six cells.
Why players enjoy Gridlock
Simple rules, meaningful depth
One idea to learn, and a puzzle that keeps rewarding careful thought.
Calm, untimed problem solving
No clock and no pressure — solve at exactly your own pace.
Different board sizes and levels
Pick a quick warm-up or settle into a larger, deeper grid.
A satisfying daily ritual
A fresh grid to complete every day, and an archive to catch up.
A challenge for every kind of solver.
Larger boards, around 10×10, with more possible rectangle combinations to weigh.
Large boards, around 15×15, that reward planning ahead and careful deduction.
A new grid every day.
Gridlock is built around a daily ritual — one featured puzzle each day, with everything you need to keep the streak going.
One puzzle per day
A fresh, hand-tuned grid goes live every day.
Calendar & archive
Browse previous days and catch up on any you missed.
Completion history
Keep track of the grids you've finished and your current streak.
Plays on every screen
Responsive, touch-friendly play across desktop, tablet, and mobile.
Gridlock, branded for your audience.
Publishers and brands can launch Gridlock under their own identity, on their own domain, with advertising outside the puzzle and access to engagement analytics.