SOLUTION: John has a board with 11 squares. He puts a coin in each of eight neighbouring squares without
leaving any empty squares between the coins. What is the maximum number of squares i
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leaving any empty squares between the coins. What is the maximum number of squares i
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Question 1135193: John has a board with 11 squares. He puts a coin in each of eight neighbouring squares without
leaving any empty squares between the coins. What is the maximum number of squares in which one
can be sure that there is a coin? Answer by ikleyn(52884) (Show Source):
