Pearl — Draw Closed Loop Grid

Pearl is a classic logic loop puzzle game : draw a closed loop in the grid, and complete the puzzle according to the hint rules of black and white circles.

Key Features:
[Draw Loops]
Click on grid edges to draw loop segments, drag to draw multiple segments continuously, and easily create closed loops.
[Black and White Hints]
Solve puzzles according to the rules of black circles (corners but adjacent non-corners) and white circles (straight lines but at least one adjacent corner).
[Custom Parameters]
Adjust grid size and difficulty level, from simple to complex, to meet the needs of different players.
[Display Styles]
Choose traditional mode or Loopy style, adjust game visual effects according to personal preference.
[Night Mode]
Enable night mode, use dark background to protect eyes, suitable for gaming in low-light environments.

Instructions:
Objective
Through logical reasoning, based on the hints of black and white circles, draw the unique closed loop in the grid.

Steps
1. Click on grid edges to draw loop segments
2. Drag to draw multiple segments continuously
3. Right-click to mark excluded edges
4. Use keyboard arrow keys to move cursor (optional)
5. Adjust game parameters and display settings

Pro Tips
- Start with black circles as their rules are stricter
- Use white circle rules to infer possible corner positions
- Mark excluded edges to avoid repeated thinking
- Start with easy difficulty and gradually challenge more complex puzzles

Download Pearl now and start your logic puzzle journey!