📖 About

Bullpen (also known as Shikaku) is a satisfying logic puzzle where you partition the grid into rectangles! Each numbered cell must be contained in a rectangle exactly that size. Rectangles cannot overlap and must cover the entire grid. It's a perfect blend of spatial reasoning and arithmetic—deduce the shape and position of each pen from the number clues!

🎯 Objectives

Divide the entire grid into rectangular regions so that each numbered cell is contained in a rectangle of exactly that area. Every cell must belong to exactly one rectangle, and rectangles cannot overlap.

🎮 How to Play

Click and drag to create rectangles on the grid. Each number indicates the area of its rectangle. Rectangles cannot overlap and must cover the entire grid. Each rectangle contains exactly one number.

💡 Tips

• ✓ Start with regions that have the most constraints
• ✓ Prime numbers can only be 1×N rectangles
• ✓ Each rectangle must contain exactly one number
• ✓ Rectangles cannot overlap or cross region boundaries

❓ Frequently Asked Questions