Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
Can you work out how to win this game of Nim? Does it matter if you go first or second?
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. . . .
How good are you at estimating angles?
A game for 2 people. Take turns placing a counter on the star. You win when you have completed a line of 3 in your colour.
A game that tests your understanding of remainders.
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.
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.
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. . . .
Solve this Sudoku puzzle whose clues are in the form of sums of the
numbers which should appear in diagonal opposite cells.
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.
Interactive game. Set your own level of challenge, practise your table skills and beat your previous best score.
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 Sudoku with clues as ratios.
A Sudoku that uses transformations as supporting clues.
To avoid losing think of another very well known game where the
patterns of play are similar.
Can you spot the similarities between this game and other games you know? The aim is to choose 3 numbers that total 15.
This pair of linked Sudokus matches letters with numbers and hides a seasonal greeting. Can you find it?
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 Sudoku with a twist.
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
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. 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 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.
Slide the pieces to move Khun Phaen past all the guards into the position on the right from which he can escape to freedom.
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?
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
A game for 2 players
Practise your diamond mining skills and your x,y coordination in this homage to Pacman.
Two sudokus in one. Challenge yourself to make the necessary
Spiralling Decimals game for an adult and child. Can you get three decimals next to each other on the spiral before your partner?
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.
A collection of games on the NIM theme
A Sudoku with clues given as sums of entries.
A Sudoku based on clues that give the differences between adjacent cells.
A game for 1 person to play on screen. Practise your number bonds
whilst improving your memory
Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?
Investigations based on an Indian game.
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.
Can you discover whether this is a fair game?
A Sudoku with clues as ratios or fractions.
Four numbers on an intersection that need to be placed in the
surrounding cells. That is all you need to know to solve this
A game in which players take it in turns to turn up two cards. If
they can draw a triangle which satisfies both properties they win
the pair of cards. And a few challenging questions to follow...
A simple game of patience which often comes out. Can you explain
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.
This sudoku requires you to have "double vision" - two Sudoku's for the price of one