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.

A game for 2 people. Take turns placing a counter on the star. You win when you have completed a line of 3 in your colour.

Got It game for an adult and child. How can you play so that you know you will always win?

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

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

A game for 2 players. Given an arrangement of matchsticks, players take it is turns to remove a matchstick, along with all of the matchsticks that touch it.

Can you explain the strategy for winning this game with any target?

Here is a chance to play a version of the classic Countdown Game.

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

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

Play this game and see if you can figure out the computer's chosen number.

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 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.

A game in which players take it in turns to try to draw quadrilaterals (or triangles) with particular properties. Is it possible to fill the game grid?

A game for 2 players that can be played online. Players take it in turns to select a word from the 9 words given. The aim is to select all the occurrences of the same letter.

Solve this Sudoku puzzle whose clues are in the form of sums of the numbers which should appear in diagonal opposite cells.

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

A Sudoku that uses transformations as supporting clues.

Four numbers on an intersection that need to be placed in the surrounding cells. That is all you need to know to solve this sudoku.

The idea of this game is to add or subtract the two numbers on the dice and cover the result on the grid, trying to get a line of three. Are there some numbers that are good to aim for?

Factors and Multiples game for an adult and child. How can you make sure you win this game?

Some Games That May Be Nice or Nasty for an adult and child. Use your knowledge of place value to beat your opponent.

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

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...

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

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

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.

Two sudokus in one. Challenge yourself to make the necessary connections.

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. . . .

Nim-7 game for an adult and child. Who will be the one to take the last counter?

This is a game for two players. You will need some small-square grid paper, a die and two felt-tip pens or highlighters. Players take turns to roll the die, then move that number of squares in. . . .

A simple game for 2 players invented by John Conway. It is played on a 3x3 square board with 9 counters that are black on one side and white on the other.

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

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

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.

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

This game challenges you to locate hidden triangles in The White Box by firing rays and observing where the rays exit the Box.

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

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.

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

Two sudokus in one. Challenge yourself to make the necessary connections.

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

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

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?