You may also like


Nine squares with side lengths 1, 4, 7, 8, 9, 10, 14, 15, and 18 cm can be fitted together to form a rectangle. What are the dimensions of the rectangle?

Drawing Polygons

I wonder which polygons we can draw on dotty paper...

Drawing Squares

Take a look at the video showing squares drawn on dotty grids...

Approaching Midnight What Next?

Age 7 to 14

If you are fascinated by being able to win, try playing around with changing the settings of the game (for example, the start time, the time steps, who starts etc.) and see what happens. (You'll need to scroll down the interactive to see the 'Settings' button.)

Can you still find a winning strategy?

Full screen version

Want to see how others played around?

See what Jennie tried          See what Bernard tried          See what Liz tried

Let us know your thoughts by submitting a solution.

Taking it further ...