A game for two players who take turns to select two numbers that add up to a square number. 
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Enter the names of the players.
Player 1:
Player 2:
StartEach adjacent pair of numbers on the line must add up to a square number.
THE LINE


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Exam Style questions are in the style of GCSE or IB/Alevel exam paper questions and worked solutions are available for Transum subscribers.
The maximum number of cards that can be arranged in a row is 17.
16, 9, 7, 2, 14, 11, 5, 4, 12, 13, 3, 6, 10, 15, 1, 8, 17.
See Graph Theory for a proof.
See Extension for the 123 situation.
See Square Pairs for the related lesson Starter.
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