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Try and trace along all the lines in each of these puzzles without lifting the pen from the paper and only tracing each line once. One of the following puzzles is impossible. All of the rest can be done. The impossible puzzle will be given in the next issue.
DID YOU KNOW? - Euler puzzles are named after the man who devised the method of knowing if they are possible or not. Leonard Euler was an 18th century mathematician who devised a rule for mapping routes to eliminate unneccessary travel and backtracking.
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