Euclid's Game

At the beginning of this simple game, the applet below displays a board with two numbers. At any time you can use the edit control to input a positive difference of any two numbers already present on the board. The loser is the player unable to make a move. If you wish the computer to move first, check the box "Please start".

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Euclid's game, interactive

What if applet does not run?

Explanation


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