📖 About

Castle Wall is a loop-building puzzle where you construct a single continuous wall around a grid. Numbers in cells indicate how many walls surround that cell. The wall must form a closed loop and cannot cross itself. A medieval-themed logic challenge that tests your spatial reasoning!

🎯 Objectives

Draw a single closed loop of walls that satisfies all numeric clues. Each number indicates how many of its four edges contain wall segments.

🎮 How to Play

Click cell edges to draw walls. Draw a single closed loop of walls. Numbers show how many walls surround that cell (0-4). The wall cannot cross itself.

💡 Tips

• ✓ Start with 0 clues - they mean no walls in that direction
• ✓ Walls must connect to form a single loop
• ✓ Use the clue numbers to limit possibilities
• ✓ Mark cells that definitely cannot be walls

❓ Frequently Asked Questions