One Player Game Fill the game board with the counters from both boxes. Avoid lining up four numbers with a common factor (other than one). A trophy is available for filling all the cells of the game board.
Two Player Game Each player has a box of counters to choose from. Take it in turns to drop a counter into the game board. The winner is the first to line up four numbers with a common factor (other than one).
Drag the counters into the area above the game board then release.
Here are examples of four numbers that have a common factor:
15,10,20,20 - Common factor 5
8,4,20,24 - Common factor 4
21,18,15,24 - Common factor 3
You can earn a Transum trophy for completing the one-player challenge.
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