Lines To Fill Game

Lines to Fill is a color-matching puzzle from Kek Games where the challenge is entirely visual: an outlined shape sits on the board, and it's yours to fill completely using a set of colored block pieces. Drag each piece into the outline, work out how the shapes interlock, and keep going until every cell inside the border is covered.

There's no clock and no way to actually lose a level — a piece simply won't fit where it doesn't belong, so a level only ends when you've solved it. That makes it a genuinely low-pressure kind of puzzle: quick to pick up, easy to put down mid-level, and built around chipping away at one shape at a time rather than racing a score, with hundreds of levels to work through.

Controls

Click and hold a piece with the left mouse button to drag it into place on desktop, or drag it with your finger on a touchscreen. Release over an empty cell inside the outline to drop it.

Tips

• Since there's no timer, study the outline before placing anything — working out which piece has to go in the tightest corner first avoids dead ends later.
• If a piece won't fit anywhere you try, place a different piece first; shapes tend to clear more easily from the edges inward.

It suits anyone who wants a puzzle to fill a spare five minutes, or a much longer stretch, without any pressure to be fast.