Akari

Akari is a Nikoli puzzle genre.

  • Place light bulbs in certain non-shaded cells of the grid.
  • Every cell is on at least one orthogonal line created by a light bulb, terminating at shaded cells.
  • No two lightbulbs appear on the same orthogonal line.
  • Every numerical clue represents exactly the number in the immediately surrounding orthogonal cells.