This pair of linked Sudokus matches letters with numbers and hides a seasonal greeting. Can you find it?
This second Sudoku article discusses "Corresponding Sudokus" which are pairs of Sudokus with terms that can be matched using a substitution rule.
Two sudokus in one. Challenge yourself to make the necessary
A Sudoku based on clues that give the differences between adjacent cells.
A Sudoku with clues given as sums of entries.
This sudoku requires you to have "double vision" - two Sudoku's for
the price of one
A Sudoku that uses transformations as supporting clues.
Solve this Sudoku puzzle whose clues are in the form of sums of the
numbers which should appear in diagonal opposite cells.
A Sudoku with clues as ratios.
Given the products of diagonally opposite cells - can you complete this Sudoku?
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 Sudoku with clues as ratios or fractions.
A Sudoku with a twist.
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.
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.
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 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 2 people. Take turns to move the counters 1, 2 or 3
spaces. The player to remove the last counter off the board wins.
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 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.
Follow-up to the February Game Rules of FEMTO.
Here is a solitaire type environment for you to experiment with. Which targets can you reach?
Can you identify the mathematicians?
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.
A new card game for two players.
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 simple version of an ancient game played all over the world. It is also called Mancala. What tactics will increase your chances of winning?
Who said that adding, subtracting, multiplying and dividing
couldn't be fun?
Advent Calendar 2010 - a mathematical game for every day during the
run-up to Christmas.
A game for 2 people. Take turns joining two dots, until your opponent is unable to move.
Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?
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
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 game that tests your understanding of remainders.
This article shows how abstract thinking and a little number theory throw light on the scoring in the game Go.
A game for 1 person to play on screen. Practise your number bonds
whilst improving your memory
A game for 2 players
Investigations based on an Indian game.
A game in which players take it in turns to choose a number. Can you block your opponent?
A simple game of patience which often comes out. Can you explain
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.
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. . . .
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.
How good are you at estimating angles?
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
There are nasty versions of this dice game but we'll start with the nice ones...
Can you spot the similarities between this game and other games you
know? The aim is to choose 3 numbers that total 15.