N/A

Link each pair of numbers with a continuous pipe line. Move horizontally or vertically through the cells. All cells in the grid must be used.
Rules of Play
- Every number must be connected to its matching partner via an unbroken and unsplit path.
- No path may cross another or double back on itself.
- Every square on the grid must be filled with a color.
Features:
- Over 2000+ free puzzles
- Multiple sizes, from 6x6 to 11x16
- Tips
There is no foolproof logical way to solve this seemingly easy puzzle. Or, as Nikoli puts it, 'the puzzle requires inspired guessing and puzzling sense.'
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