Fill

FILL Colors - Connect the starting and ending block with one line.

FILL – connect the blocks with one line - is easy and hard puzzle game simultaneously. 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.

During your commute, before you sleep… enjoy downtime with brain training.

The rules are extremely simple.

Just fill in all of the blocks using only one line.

Use hints for puzzles that are too hard to solve.

Hints are also free, of course.

4 levels of difficulty.

A whopping 2,000 puzzles.

Don’t get too cozy—the puzzles get harder as you go along.

Fill - connect the blocks with one line FEATURES:

☆ totally free to play

☆ dozen of puzzles

☆ different difficulty levels

☆ suitable for all ages

☆ new levels update every week

☆ free hints

☆ small app size

☆ no wifi needed