To draw lines in Lines to Fills Online, simply drag and drop the colorful blocks by connecting them. You can use either your finger on a touchscreen device or a mouse on a computer.

No, there is no time limit in Lines to Fills Online. You can play at your own pace and take as much time as you need to complete each level.

No, there is no possibility of losing in Lines to Fills Online. The game is designed to be relaxing and stress-free, allowing you to enjoy the process of solving puzzles.

The objective of Lines to Fills Online is to fill in all areas within the outlined puzzle shapes by connecting colorful blocks to form continuous lines. You must ensure there are no gaps left inside the shapes.

While there isn't a traditional difficulty progression, the game features over 100 unique levels that gradually increase in complexity. Each level challenges you to think creatively to find solutions.

Yes, Lines to Fills Online is fully compatible with mobile devices. You can enjoy the game on both smartphones and tablets, as well as on computers and laptops.

Although there isn't an explicit tutorial, the game's simple mechanics make it easy to understand. Start by experimenting with connecting blocks and filling in shapes to get familiar with the gameplay.

While there isn't a specific progress tracking system, you can keep track of the levels you've completed by playing through the numbered levels from start to finish.