The idea of this game is to add or subtract the two numbers on the dice and cover the result on the grid, trying to get a line of three. Are there some numbers that are good to aim for?
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.
There are nasty versions of this dice game but we'll start with the nice ones...
Can you work out how to win this game of Nim? Does it matter if you go first or second?
This second Sudoku article discusses "Corresponding Sudokus" which are pairs of Sudokus with terms that can be matched using a substitution rule.
An interactive activity for one to experiment with a tricky tessellation
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 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.
Given the products of diagonally opposite cells - can you complete this Sudoku?
A game for 2 people that can be played on line or with pens and paper. Combine your knowledege of coordinates with your skills of strategic thinking.
A game to be played against the computer, or in groups. Pick a 7-digit number. A random digit is generated. What must you subract to remove the digit from your number? the first to zero wins.
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
A Sudoku that uses transformations as supporting clues.
An interactive game for 1 person. You are given a rectangle with 50 squares on it. Roll the dice to get a percentage between 2 and 100. How many squares is this? Keep going until you get 100. . . .
A shunting puzzle for 1 person. Swop the positions of the counters at the top and bottom of the board.
Who said that adding, subtracting, multiplying and dividing
couldn't be fun?
Design your own scoring system and play Trumps with these Olympic Sport cards.
Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?
In this matching game, you have to decide how long different events take.
Two sudokus in one. Challenge yourself to make the necessary
A game that tests your understanding of remainders.
A train building game for 2 players.
A number card game for 2-6 players.
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.
This pair of linked Sudokus matches letters with numbers and hides a seasonal greeting. Can you find it?
A card pairing game involving knowledge of simple ratio.
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 for 2 people that everybody knows. You can play with a
friend or online. If you play correctly you never lose!
This sudoku requires you to have "double vision" - two Sudoku's for
the price of one
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?
Try to stop your opponent from being able to split the piles of counters into unequal numbers. Can you find a strategy?
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
A Sudoku with a twist.
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.
How good are you at estimating angles?
Work out the fractions to match the cards with the same amount of
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.
A Sudoku with clues as ratios.
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.
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.
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 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.
A fun game for two. You'll need some counters.
A simple game of patience which often comes out. Can you explain
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.
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
This is a challenging game of strategy for two players with many interesting variations.
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. . . .
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?