Shikaku of the Day
Rate itDivide each day's grid into rectangles that hold one number equal to their area, at five difficulty levels.
on shikakuofthe.day
Shikaku of the Day puts out five new Shikaku puzzles every day, from Easy to Master. You split the grid into rectangles and squares so that each one holds exactly one number and covers that many cells. A timer runs while you solve, and an archive keeps the last 30 days.
About Shikaku of the Day
Shikaku of the Day is a free browser site for the Japanese logic puzzle Shikaku, made by Ciesukki, who also makes the word games Rabbel and WordWavr. Each day it publishes five puzzles, one per level: Easy, Medium, Hard, Expert and Master. Every puzzle carries a code with its level and date, such as #MEDIUM261020, so everyone plays the same grids.
The rules are short. The grid holds scattered numbers, and you divide the whole grid into rectangles (squares count) so that every rectangle contains exactly one number and its area in cells equals that number. There can be no gaps and no overlaps. A rectangle whose area does not match its number is outlined in red.
On a computer you click and drag between two corners to draw a rectangle and right-click to remove one; on a phone you tap the first and last cell and press and hold to delete. Easy starts at a 5x5 grid and Medium is 10x10, with larger boards above that. Undo, Clear all and zoom settings from 100% to 200% help on big boards, and a stats page keeps your solves on your device.
An archive lists the last 30 days with all five levels each, so a missed day can be filled in later. The site is free and needs no account; a Google ad shows below the board.
It suits fans of number logic puzzles who want a quick daily grid or a longer Master challenge, with nothing to install.
How to play Shikaku of the Day
- Open the site and pick a level from Easy to Master.
- Press Start Game to begin the timer.
- Drag from one corner cell to another to draw a rectangle around a number (on a phone, tap the first and last cell).
- Make each rectangle's area match its single number; one that does not match is outlined in red, and right-click or press and hold removes it.
- Cover the whole grid with no gaps or overlaps to finish.
Screenshots
Tips
- Start with numbers near corners and edges, which have fewer ways to grow.
- Think in factors: a 12 can only be 1x12, 2x6 or 3x4, so rule out shapes that do not fit.
- Look for cells that only one number can reach and claim them first.
Questions
Is the puzzle the same for everyone?
Yes. Each day's five puzzles are labelled with the level and date, and every player gets the same grids.
How many difficulty levels are there?
Five: Easy, Medium, Hard, Expert and Master, each with a new grid every day.
Can I play past days?
Yes. The archive lists the last 30 days, with all five levels for each.
Can I play on a phone?
Yes. Tap the first and last cell of a rectangle, and press and hold to remove one.
Does it have ads?
Yes. The site is free and shows a Google ad below the board; there is no sign-up.
Ratings and reviews
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