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.

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

A game for 2 players. Set out 16 counters in rows of 1,3,5 and 7. Players take turns to remove any number of counters from a row. The player left with the last counter looses.

A game for 2 players with similaritlies to NIM. Place one counter on each spot on the games board. Players take it is turns to remove 1 or 2 adjacent counters. The winner picks up the last counter.

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.

This article invites you to get familiar with a strategic game called "sprouts". The game is simple enough for younger children to understand, and has also provided experienced mathematicians with. . . .

Some puzzles requiring no knowledge of knot theory, just a careful inspection of the patterns. A glimpse of the classification of knots and a little about prime knots, crossing numbers and. . . .

Match pairs of cards so that they have equivalent ratios.

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

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

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

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.

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.

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

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.

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?

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

Slide the pieces to move Khun Phaen past all the guards into the position on the right from which he can escape to freedom.

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. . . .

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

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.

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

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 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.

All you need for this game is a pack of cards. While you play the game, think about strategies that will increase your chances of winning.

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

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. . . .

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.

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

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

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

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

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

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

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?

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.

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

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.

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

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