Shikaku of the day

Shikaku of the Day is a daily logic puzzle where your mission is to divide the grid into rectangular and square regions that match the numbers shown.

Each number represents the exact area of a single rectangle (or square) that must include that number.

Every region:

• must be a perfect rectangle or square,
• must contain exactly one number, and
• must use exactly that many cells.

Your goal is to partition the entire grid with no overlaps and no empty cells.

There is a new puzzle every day, with multiple difficulty levels to choose from.

Why we like it:

• ✅A clean, pure logic puzzle with no guessing required.
• ✅Scales beautifully from quick warm-ups to serious brain burners.
• ✅The daily format makes it easy to build a solving habit.

Hint: Start with the smallest and largest numbers first, they usually have the fewest possible rectangle placements.