Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
Given the products of diagonally opposite cells - can you complete this Sudoku?
A game that tests your understanding of remainders.
A game for two people, or play online. Given a target number, say 23, and a range of numbers to choose from, say 1-4, players take it in turns to add to the running total to hit their target.
Two sudokus in one. Challenge yourself to make the necessary
A Sudoku based on clues that give the differences between adjacent cells.
This pair of linked Sudokus matches letters with numbers and hides a seasonal greeting. Can you find it?
A Sudoku that uses transformations as supporting clues.
This second Sudoku article discusses "Corresponding Sudokus" which are pairs of Sudokus with terms that can be matched using a substitution rule.
A game in which players take it in turns to choose a number. Can you block your opponent?
This sudoku requires you to have "double vision" - two Sudoku's for
the price of one
A simple game of patience which often comes out. Can you explain
This article explains the use of the idea of connectedness in networks, in two different ways, to bring into focus the basics of the game of Go, namely capture and territory.
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.
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
An article for teachers and pupils that encourages you to look at the mathematical properties of similar games.
A simple game for 2 players invented by John Conway. It is played
on a 3x3 square board with 9 counters that are black on one side
and white on the other.
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.
Match pairs of cards so that they have equivalent ratios.
A game for 2 players
The game of go has a simple mechanism. This discussion of the principle of two eyes in go has shown that the game does not depend on equally clear-cut concepts.
A Sudoku with a twist.
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.
Spiralling Decimals game for an adult and child. Can you get three decimals next to each other on the spiral before your partner?
A Sudoku with clues as ratios.
Four numbers on an intersection that need to be placed in the
surrounding cells. That is all you need to know to solve this
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.
Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?
There are nasty versions of this dice game but we'll start with the nice ones...
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
Who said that adding, subtracting, multiplying and dividing
couldn't be fun?
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 spot the similarities between this game and other games you
know? The aim is to choose 3 numbers that total 15.
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
Advent Calendar 2010 - a mathematical game for every day during the
run-up to Christmas.
Some Games That May Be Nice or Nasty for an adult and child. Use your knowledge of place value to beat your oponent.
Practise your diamond mining skills and your x,y coordination in this homage to Pacman.
Can you be the first to complete a row of three?
A game for 2 or more people, based on the traditional card game
Rummy. Players aim to make two `tricks', where each trick has to
consist of a picture of a shape, a name that describes that shape,
and. . . .
Square It game for an adult and child. Can you come up with a way of always winning this game?
Match the cards of the same value.
Help the bee to build a stack of blocks far enough to save his
friend trapped in the tower.
Investigations based on an Indian game.
A Sudoku with clues as ratios or fractions.
This is an interactive net of a Rubik's cube. Twists of the 3D cube become mixes of the squares on the 2D net. Have a play and see how many scrambles you can undo!
This is a simple version of an ancient game played all over the world. It is also called Mancala. What tactics will increase your chances of winning?
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 loser is the player who takes the last counter.
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.