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?

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

Everthing you have always wanted to do with dominoes! Some of these games are good for practising your mental calculation skills, and some are good for your reasoning skills.

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.

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...

A game for 2 people. Take turns joining two dots, until your opponent is unable to move.

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.

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.

A game for 1 or 2 people. Use the interactive version, or play with friends. Try to round up as many counters as possible.

Can you make the birds from the egg tangram?

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

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?

A Sudoku with clues given as sums of entries.

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

This is a game for 2 players. Each player has 4 counters each, and wins by blocking their opponent's counters. A good follow-on from two stones.

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

This is a challenging game of strategy for two players with many interesting variations.

A game for 1 person. Can you work out how the dice must be rolled from the start position to the finish? Play on line.

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.

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.

This article for teachers describes several games, found on the site, all of which have a related structure that can be used to develop the skills of strategic planning.

The game uses a 3x3 square board. 2 players take turns to play, either placing a red on an empty square, or changing a red to orange, or orange to green. The player who forms 3 of 1 colour in a line. . . .

This article, the second in the series, looks at some different types of games and the sort of mathematical thinking they can develop.

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

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 game for 1 person to develop stategy and shape and space awareness. 12 counters are placed on a board. Counters are removed one at a time. The aim is to be left with only 1 counter.

This article supplies teachers with information that may be useful in better understanding the nature of games and their role in teaching and learning mathematics.

A shunting puzzle for 1 person. Swop the positions of the counters at the top and bottom of the board.

Design your own scoring system and play Trumps with these Olympic Sport cards.

In this matching game, you have to decide how long different events take.

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

You'll need two dice to play this game against a partner. Will Incey Wincey make it to the top of the drain pipe or the bottom of the drain pipe first?

Here are a collection of games from around the world to try during the holidays or the last few weeks of term.

Try this matching game which will help you recognise different ways of saying the same time interval.

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

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

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.

Totality game for an adult and child. Be the first to reach your agreed total.

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

In this game for two players, you throw two dice and find the product. How many shapes can you draw on the grid which have that area or perimeter?

Board Block Challenge game for an adult and child. Can you prevent your partner from being able to make a shape?

Use the tangram pieces to make our pictures, or to design some of your own!

Here is a version of the game 'Happy Families' for you to make and play.

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