Start with any number of counters in any number of piles. 2 players take it in turns to remove any number of counters from a single pile. The winner is the player to take the last counter.

Given the products of diagonally opposite cells - can you complete this Sudoku?

Start with any number of counters in any number of piles. 2 players take it in turns to remove any number of counters from a single pile. The loser is the player who takes the last counter.

Help the bee to build a stack of blocks far enough to save his friend trapped in the tower.

Can you beat the computer in the challenging strategy game?

A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.

To avoid losing think of another very well known game where the patterns of play are similar.

This is an interactive net of a Rubik's cube. Twists of the 3D cube become mixes of the squares on the 2D net. Have a play and see how many scrambles you can undo!

Match pairs of cards so that they have equivalent ratios.

Who said that adding, subtracting, multiplying and dividing couldn't be fun?

Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?

Square It game for an adult and child. Can you come up with a way of always winning this game?

There are nasty versions of this dice game but we'll start with the nice ones...

A game that tests your understanding of remainders.

The aim of the game is to slide the green square from the top right hand corner to the bottom left hand corner in the least number of moves.

Players take it in turns to choose a dot on the grid. The winner is the first to have four dots that can be joined to form a square.

Can you beat Piggy in this simple dice game? Can you figure out Piggy's strategy, and is there a better one?

This pair of linked Sudokus matches letters with numbers and hides a seasonal greeting. Can you find it?

A game to make and play based on the number line.

Here is a solitaire type environment for you to experiment with. Which targets can you reach?

Practise your diamond mining skills and your x,y coordination in this homage to Pacman.

A game for 2 or more people, based on the traditional card game Rummy. Players aim to make two `tricks', where each trick has to consist of a picture of a shape, a name that describes that shape, and. . . .

A game for 2 players. Take turns to place a counter so that it occupies one of the lowest possible positions in the grid. The first player to complete a line of 4 wins.

Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.

An ordinary set of dominoes can be laid out as a 7 by 4 magic rectangle in which all the spots in all the columns add to 24, while those in the rows add to 42. Try it! Now try the magic square...

Basic strategy games are particularly suitable as starting points for investigations. Players instinctively try to discover a winning strategy, and usually the best way to do this is to analyse. . . .

A simple game of patience which often comes out. Can you explain why?

This article explains the use of the idea of connectedness in networks, in two different ways, to bring into focus the basics of the game of Go, namely capture and territory.

An article for teachers and pupils that encourages you to look at the mathematical properties of similar games.

A game for 1 person to play on screen. Practise your number bonds whilst improving your memory

A game in which players take it in turns to choose a number. Can you block your opponent?

Can you work out how to win this game of Nim? Does it matter if you go first or second?

Collect as many diamonds as you can by drawing three straight lines.

A game for 2 players. Can be played online. One player has 1 red counter, the other has 4 blue. The red counter needs to reach the other side, and the blue needs to trap the red.

The computer starts with all the lights off, but then clicks 3, 4 or 5 times at random, leaving some lights on. Can you switch them off again?

We think this 3x3 version of the game is often harder than the 5x5 version. Do you agree? If so, why do you think that might be?

Unmultiply is a game of quick estimation. You need to find two numbers that multiply together to something close to the given target - fast! 10 levels with a high scores table.

Many natural systems appear to be in equilibrium until suddenly a critical point is reached, setting up a mudslide or an avalanche or an earthquake. In this project, students will use a simple. . . .

Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?

Spiralling Decimals game for an adult and child. Can you get three decimals next to each other on the spiral before your partner?

A game in which players take it in turns to turn up two cards. If they can draw a triangle which satisfies both properties they win the pair of cards. And a few challenging questions to follow...

First Connect Three game for an adult and child. Use the dice numbers and either addition or subtraction to get three numbers in a straight line.

Advent Calendar 2010 - a mathematical game for every day during the run-up to Christmas.

This sudoku requires you to have "double vision" - two Sudoku's for the price of one

A maths-based Football World Cup simulation for teachers and students to use.