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

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

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

How long does it take to brush your teeth? Can you find the matching length of time?

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

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. . . .

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

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.

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.

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

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.

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.

In this game for two players, the idea is to take it in turns to choose 1, 3, 5 or 7. The winner is the first to make the total 37.

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

Can you beat the computer in the challenging strategy game?

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

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

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.

An interactive activity for one to experiment with a tricky tessellation

An interactive game to be played on your own or with friends. Imagine you are having a party. Each person takes it in turns to stand behind the chair where they will get the most chocolate.

A game for two people that can be played with pencils and paper. Combine your knowledge of coordinates with some strategic thinking.

A Sudoku that uses transformations as supporting clues.

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.

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

Here are some more upper primary strategy games for you to play.

This article outlines how strategy games can help children develop logical thinking, using examples from the NRICH website.

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?

Use your knowledge of place value to try to win this game. How will you maximise your score?

What might your first lesson with a new class look like? In this article, Cherri Moseley makes some suggestions for primary teachers.

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

In this article for teachers, Liz Woodham describes the criteria she uses to choose mathematical games for the classroom and shares some examples from NRICH.

Use your addition and subtraction skills, combined with some strategic thinking, to beat your partner at this game.

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

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

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

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

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.

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

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.

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

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

A train building game for two players. Can you be the one to complete the train?

Calculate the fractional amounts of money to match pairs of cards with the same value.

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

A game for 2 players. Draw a daisy with at least 5 petals. Shade 1 or 2 petals next to each other. The winner shades the last petal.