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

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.

A game for 2 or more people. Starting with 100, subratct a number from 1 to 9 from the total. You score for making an odd number, a number ending in 0 or a multiple of 6.

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.

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.

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

This second Sudoku article discusses "Corresponding Sudokus" which are pairs of Sudokus with terms that can be matched using a substitution rule.

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?

A game for two people, who take turns to move the counters. The player to remove the last counter from the board wins.

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

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

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 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.

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

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

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

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.

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

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.

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.

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

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

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

Can you beat the computer in the challenging strategy game?

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 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.

Match pairs of cards so that they have equivalent ratios.

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. . . .

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 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. . . .

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

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

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

Dicey Operations for an adult and child. Can you get close to 1000 than your partner?

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

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

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

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

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

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

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

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