Given the products of diagonally opposite cells - can you complete this Sudoku?
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 mathematically themed crossword.
This sudoku requires you to have "double vision" - two Sudoku's for the price of one
A Sudoku that uses transformations as supporting clues.
A Sudoku with clues as ratios.
Follow-up to the February Game Rules of FEMTO.
A new card game for two players.
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.
Four numbers on an intersection that need to be placed in the
surrounding cells. That is all you need to know to solve this
Two sudokus in one. Challenge yourself to make the necessary
Here is a machine with four coloured lights. Can you develop a strategy to work out the rules controlling each light?
This pair of linked Sudokus matches letters with numbers and hides a seasonal greeting. Can you find it?
A Sudoku with a twist.
A Sudoku with clues as ratios or fractions.
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, who take turns to move the counters. The player to remove the last counter from the board wins.
A Sudoku based on clues that give the differences between adjacent cells.
A Sudoku with clues given as sums of entries.
This second Sudoku article discusses "Corresponding Sudokus" which are pairs of Sudokus with terms that can be matched using a substitution rule.
Help the bee to build a stack of blocks far enough to save his
friend trapped in the tower.
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.
All you need for this game is a pack of cards. While you play the
game, think about strategies that will increase your chances of
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.
1. LATE GRIN (2 solutions)
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...
An article for teachers and pupils that encourages you to look at the mathematical properties of similar games.
A game for 2 people. Take turns joining two dots, until your opponent is unable to move.
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.
A game in which players take it in turns to choose a number. Can you block your opponent?
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.
Match the cards of the same value.
Can you identify the mathematicians?
This article shows how abstract thinking and a little number theory throw light on the scoring in the game Go.
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
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?
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!
Square It game for an adult and child. Can you come up with a way of always winning this game?
To avoid losing think of another very well known game where the
patterns of play are similar.
Can you beat Piggy in this simple dice game? Can you figure out
Piggy's strategy, and is there a better one?
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.
Advent Calendar 2010 - a mathematical game for every day during the
run-up to Christmas.
Match pairs of cards so that they have equivalent ratios.
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.
Can you be the first to complete a row of three?
Can you beat the computer in the challenging strategy game?