Featured Puzzle: Lighthouses #4

On this day in 1798, the US Congress commissioned the first federal lighthouse. Then, 200 years later, Ronald Regan created National Lighthouses Day on August 7th. Interestingly, this law made many lighthouse grounds open to the public.

Hidden somewhere in this grid are a group of single-cell tugboats. Can you use the clues provided by the lighthouses to find them all?

• Lighthouses reveal all boats that share a row and column with it. Nothing blocks the lighthouse’s light.
• Numbers count how many boats are revealed by that lighthouse.
• Each boat is lit by at least one lighthouse.
• No boat is adjacent to any other boat or lighthouse in any direction, including diagonally.