Rules of 'Train'

A train starts at Station No.1 and passes through the stations in numerical order. The journey cannot cross or overlap and must visit every cell exactly once.

EXAMPLE:


UNIQUE SOLUTION:

3 comments:

  1. This is one of my favourite puzzles!

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  2. The puzzle would be more interesting if multiple paths would be allowed. There would be more cells with the same number and it would be not clear from the beginning which number belongs to which path.

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