Game Rules:

1. Rule 1: The main objective of the game is to completely fill the given puzzle shape with colorful blocks, leaving no empty spaces.
2. Rule 2: To play, simply click and drag one of the colored blocks onto the grid, drawing a line that fills the adjacent squares.
3. Rule 3: You can only draw lines horizontally or vertically, not diagonally. Each line must be continuous and cannot cross over itself or other lines.
4. Rule 4: You can start drawing from any block and can undo or redraw lines as many times as you like. There is no penalty for making mistakes.
5. Rule 5: The level is complete when all empty spaces within the shape are filled. There are hundreds of unique levels to challenge your spatial reasoning skills.

Controls:

1. Draw Line: Click and hold the left mouse button (or tap and hold on a mobile device) on a colored block, then drag to draw a line.
2. Undo: Click the 'Undo' button or press 'Ctrl+Z' (Windows) or 'Cmd+Z' (Mac) to undo your last move.
3. Restart Level: Click the 'Restart' button to clear the board and start the level over again.

FAQ:

1. Q: Is there a time limit for each level?

No, there are no time limits in Lines to Fill. You can take your time to plan your moves and solve the puzzles at your own pace.

2. Q: Can I play the game on my phone or tablet?

Yes, Lines to Fill is playable on both computers and mobile devices. You can enjoy the game wherever you go.

3. Q: How many levels are there in the game?

There are hundreds of unique levels to challenge you in Lines to Fill. The difficulty gradually increases as you progress, offering a satisfying progression.