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.

A Sudoku that uses transformations as supporting clues.

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

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

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

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

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 Sudoku with clues given as sums of entries.

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.

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...

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

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

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.

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

Help the bee to build a stack of blocks far enough to save his friend trapped in the tower.

Four Go game for an adult and child. Will you be the first to have four numbers in a row on the number line?

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

A game for 2 people using a pack of cards Turn over 2 cards and try to make an odd number or a multiple of 3.

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

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

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

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

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

This challenge is a game for two players. Choose two numbers from the grid and multiply or divide, then mark your answer on the number line. Can you get four in a row before your partner?

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

A game for 2 people that everybody knows. You can play with a friend or online. If you play correctly you never lose!

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

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

In this game, you can add, subtract, multiply or divide the numbers on the dice. Which will you do so that you get to the end of the number line first?

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.

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

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.

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.

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

A game for 2 or more players with a pack of cards. Practise your skills of addition, subtraction, multiplication and division to hit the target score.

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.