The Fill
Sharpen your mind with a connect-the-block-style one-line brain training puzzle game.
AVAILABLE
About The Fill
Sharpen your mind with a connect-the-block-style one-line brain training puzzle game. A simple but addictive one-line puzzle game that’s completely free to play. Your brain becomes more active the more you play.
How to Play
- Swipe or draw one continuous line that passes through every block without lifting your finger or mouse.
- You must fill every block in one go; backtracking isn’t allowed.