To avoid losing think of another very well known game where the patterns of play are similar.

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.

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.

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 moves.

Can you beat the computer in the challenging strategy 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.

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.

Match pairs of cards so that they have equivalent ratios.

Square It game for an adult and child. Can you come up with a way of always winning this game?

Help the bee to build a stack of blocks far enough to save his friend trapped in the tower.

An article for teachers and pupils that encourages you to look at the mathematical properties of similar games.

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. . . .

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!

Four numbers on an intersection that need to be placed in the surrounding cells. That is all you need to know to solve this sudoku.

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.

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. . . .

Can you beat Piggy in this simple dice game? Can you figure out Piggy's strategy, and is there a better one?

This pair of linked Sudokus matches letters with numbers and hides a seasonal greeting. Can you find it?

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 Sudoku based on clues that give the differences between adjacent cells.

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.

Here is a solitaire type environment for you to experiment with. Which targets can you reach?

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.

This second Sudoku article discusses "Corresponding Sudokus" which are pairs of Sudokus with terms that can be matched using a substitution rule.

Can you work out how to win this game of Nim? Does it matter if you go first or second?

A Sudoku with clues given as sums of entries.

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.

This sudoku requires you to have "double vision" - two Sudoku's for the price of one

Two sudokus in one. Challenge yourself to make the necessary connections.

Two sudokus in one. Challenge yourself to make the necessary connections.

Take turns to place a decimal number on the spiral. Can you get three consecutive numbers?

Basic strategy games are particularly suitable as starting points for investigations. Players instinctively try to discover a winning strategy, and usually the best way to do this is to analyse. . . .

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 off again?

Some Games That May Be Nice or Nasty for an adult and child. Use your knowledge of place value to beat your oponent.

A simple game of patience which often comes out. Can you explain why?

Collect as many diamonds as you can by drawing three straight lines.

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.

Advent Calendar 2010 - a mathematical game for every day during the run-up to Christmas.