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Senior Puzzles Daily

Free puzzles

Text size: Large
Theme: Morning

Large print Colorku

Grid size

Go to today’s Colorku

Learn to play: start with how to solve Sudoku

Large print Colorku: Sudoku with shapes

Colorku follows the rules of Sudoku exactly, but replaces the numbers with bold coloured shapes. The 9 by 9 grid uses nine shapes: a circle, a square, a triangle, a diamond, a star, a plus, a heart, a hexagon and a ring. The 6 by 6 grid uses the first six. Every row, every column and every box must hold each shape once. If you can solve a Sudoku, you can solve a Colorku, and many people find shapes a friendly change from reading numbers.

Colour is never the only clue. Each shape is drawn with a heavy dark outline, and the shapes differ in form, so they can be told apart even if you cannot tell the colours apart, in all three themes. Each key on the pad also shows a small number, and the shapes are drawn big enough to see clearly. You can enlarge the whole page with the text size buttons.

Two sizes, three levels

The 9 by 9 grid is the full-size puzzle. The 6 by 6 grid has boxes two squares tall and three wide, and is a gentler place to begin. Each size comes in three levels. Easy and Medium can always be finished by spotting the one square where a shape fits, or the one shape a square can hold. Hard needs a little more, such as a naked pair. The free Colorku each day is the 9 by 9 Easy, and members will be able to play both sizes at every level.

Hints, undo and saving

If you are stuck, press Hint. The first press highlights a row, column or box where a move is waiting, and a second press fills the shape in. Hints only change the stars you earn: three stars for none, two for one or two, and one for three or more. The time you take never lowers your stars, the timer counts up rather than down, and Zen Mode hides it.

Undo is always one press away, and nothing needs dragging. Your progress is saved on your own device after every move. Free players keep it there; members will be able to play unlimited puzzles every day, and their scores and history on every device. To print a puzzle, press Ctrl+P (Cmd+P on a Mac): the buttons drop away and the grid prints large. If you prefer numbers, try large print Sudoku.

Frequently asked questions

What is Colorku?
Colorku is Sudoku played with bold coloured shapes instead of numbers. Fill the grid so that every row, column and box holds each shape once. The 9 by 9 grid uses nine shapes and the 6 by 6 grid uses six.
Can I play if I cannot tell some colours apart?
Yes. Every shape has a different form and a heavy dark outline, so shape is what tells them apart, and colour is only decoration. Each key on the pad also shows a small number.
Is it harder than Sudoku?
No. The rules and the levels are the same as Sudoku, and the puzzles are built the same way. Easy puzzles can be finished by spotting the one square where a shape fits, or the one shape a square can hold.
Can I get a hint?
Yes. Press Hint once to highlight a row, column or box where a move is waiting, and press it again to fill the shape in. The Hint button shows how many hints you have used so far. Hints are unlimited. They only change the stars you earn: three stars for none, two for one or two, and one for three or more.
Is Colorku free?
The 9 by 9 Easy Colorku is free every day, with no account and no ads. Members will be able to play the 6 by 6 size and the Medium and Hard levels, and can play unlimited puzzles every day.