Daily Shikaku

What is Daily Shikaku?

Daily Shikaku is a daily number logic puzzle where you divide a grid into rectangles. Each rectangle must contain exactly one number, and that number tells you how many cells the rectangle must cover. A 4 must cover 4 cells, a 6 must cover 6 cells, and every square on the board must belong to one valid region.

The puzzle looks calm at first, but the challenge comes from space control. One rectangle may fit by itself, yet still be wrong if it blocks another clue or leaves an impossible empty cell. Daily Shikaku rewards patient deduction, careful shape testing, and the satisfying moment when the whole grid finally divides cleanly.

Daily Shikaku Game Rules

• Each rectangle must contain exactly one number. A rectangle with no number is invalid, and a rectangle with two numbers is also invalid.
• The number must match the rectangle area. If the clue is 5, its rectangle must cover exactly 5 cells.
• Rectangles can have different shapes. A 6 may be 1×6, 2×3, 3×2, or 6×1 if the board allows it.
• Rectangles cannot overlap. A cell can belong to only one rectangle.
• The entire grid must be filled. No gaps, stray cells, or unused spaces can remain.
• The trap: a rectangle can be mathematically correct but strategically wrong. If it leaves nearby cells with no possible region, the shape must be changed.
• Daily Shikaku uses simple area rules, but every rule matters:
• Visual area example:
• A clue of 4 can be solved in different rectangle shapes:
• 1 × 4 → [ ][ ][ ][ ]

How To Play Daily Shikaku?

1. Player Action: 1 = one single cell
   Game Response: The game shows feedback or moves you to the next clue.
   What You Learn: Use the feedback to narrow the next guess.
2. Player Action: 2 = 1×2 or 2×1
   Game Response: The game shows feedback or moves you to the next clue.
   What You Learn: Use the feedback to narrow the next guess.
3. Player Action: 4 = 1×4, 2×2, or 4×1
   Game Response: The game shows feedback or moves you to the next clue.
   What You Learn: Use the feedback to narrow the next guess.
4. Player Action: 6 = 1×6, 2×3, 3×2, or 6×1
   Game Response: The game shows feedback or moves you to the next clue.
   What You Learn: Use the feedback to narrow the next guess.

Strategy & Tips

• Start with 1s, 2s, and 3s. Small clues often create fixed regions that guide the rest of the board.
• Use corners and edges. These clues have fewer expansion options and are easier to confirm.
• Think in factors. A 9 may be 1×9 or 3×3, while a 7 usually forms a long strip.
• Avoid creating isolated cells. If a leftover cell cannot join any valid rectangle, your layout needs revision.
• Do not lock big rectangles too early. Large clues can block smaller regions if placed carelessly.
• Use elimination. When most shapes for a number collide with other clues, the remaining shape is often correct.

Daily Shikaku FAQ

Final Take

Daily Shikaku is a clean, satisfying logic puzzle for players who enjoy Sudoku-style thinking, grid puzzles, and number-based deduction. Its rules are simple enough to learn quickly, but each board becomes a careful battle for space. If you like daily puzzles that are calm, visual, and genuinely strategic, Daily Shikaku is worth playing.