Solve simple colour-by-number puzzles linked to Christmas and winter, and gain a deeper understanding of image representation.
Pixel puzzles turn the ways images are represented as a series of numbers representing pixels into puzzles. The simplest ones as on this page are a simple variant of colour-by-number puzzles. More complex puzzles are based on compression algorithms.
Links
For a wide range of pixel puzzles with other pictures that also include one that help practice times tables, symmetry and more, visit our main pixel puzzle page. For lots of different kinds of unplugged Christmas Computing activities visit our Christmas computing page.
Below are lots of downloadable sheets to print off, with the answers visible so you can see what the pictures are – or send kids to our “Bit of cs4fn” website where they can download them directly themselves without seeing the answers first.
The Computing
One way images are represented and so stored in a computer or digital camera is as a grid of numbers. This way of representing an image is called a bitmap image or a raster image. Find out more about the computing and computational thinking lessons on our main pixel puzzle page.
The Puzzles
Father Christmas
- Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas (colour key)[PDF]
- Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas (black and white key)[PDF]
- Solution Sheet: Simple Colour by Number Pixel Puzzle – Christmas [PDF]
- Raw Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas (colour key)[PDF] – same puzzle as above but without instructions etc
- Raw Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas (black and white key)[PDF] – same puzzle as above but without instructions etc
- Raw Solution Sheet: Simple Colour by Number Pixel Puzzle – Christmas [PDF]
Robot Rudolph, by Elisa Huen
- Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas Robot 1 [PDF]
- Raw Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas Robot Raw Puzzle Sheet 1 [PDF]
- Solution Sheet: Simple Colour by Number Pixel Puzzle – Christmas Robot 1 Solution [PDF]
Robot Snowman, By Elaine Huen
- Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas Robot 2 [PDF]
- Raw Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas Robot Raw Puzzle Sheet 2 [PDF]
- Solution Sheet: Simple Colour by Number Pixel Puzzle – Christmas Robot 2 Solution [PDF]
Christmas Pudding, by Elaine Huen
- Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas Pudding [PDF]
- Solution Sheet: Simple Colour by Number Pixel Puzzle – Christmas Pudding Solution [PDF]
- Raw Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas Pudding Raw Version [PDF]
Robot Christmas Elf
- Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas Future (colour key)[PDF]
- Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas Future (black and white key)[PDF]
- Solution Sheet: Simple Colour by Number Pixel Puzzle – Christmas Future [PDF]
- Raw Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas Future (colour key)[PDF] – same puzzle as above but without instructions etc
- Raw Puzzle Sheet: Simple Colour by Number Pixel Puzzle – Christmas (black and white key)[PDF] – same puzzle as above but without instructions etc
- Raw Solution Sheet: Simple Colour by Number Pixel Puzzle – Christmas [PDF]
Symmetrical Pixel Puzzles
A variation of a simple pixel puzzle is a symmetrical pixel puzzle. See our page of these puzzles for more christmas puzzles.
For more …
- Visit our main pixel puzzle page
- Visit our Christmas computing page
- Visit our “Bit of cs4fn” puzzle page