suguru puzzle   tectonic puzzel

We like to receive at your suggestions for improvements and additions to this website.

LEV     PUZ        

Purenrupu ("Pure Loop") is a logic puzzle. It is created by Naoki Inaba (Japan). A square grid contains several black cells. You have to draw a single loop. The loop visits all the empty cells exactly once.

Follow the instructions below to create the Purenrupu puzzles from this website.

  • LEV: choose your starting level. The number of available puzzles is in parentheses.
  • PUZ: enter the number of the puzzle that you want to make.
  • START: the puzzle of your choice will now be loaded.
  • Choose one of the 7 options below the puzzle.
  • Click on a cell in the grid where you want to have that shape.
  • Click ✓ to check the Purenrupu puzzle for errors.
  • Click SOL to show solution.