Monday, 7 October 2024

Walker

Today’s GAPP is a Lighthouses, another genre both in the WPC and on my backlog! 🗼 🚨

Rules: Place boats into some cells so that each given lighthouse illuminates the indicated number of boats. Lighthouses illuminate all cells in a straight line vertically and horizontally. Boats and other lighthouses do not block the light. Boats may not touch each other or the lighthouses, not even diagonally.

Gray cells without numbers are also lighthouses, and can't touch boats.

Here's a GAPP 101: If a 1x2 rectangle must contain a boat, you can mark empty the cells next to the rectangle's long side. Also look out for lines of 1x2 rectangles, like 2 boats in a 1x4 rectangle.

Interface Note: In Penpa, mark boats with either shaded cells or stars. (These require fewer clicks than submarines / water cells in Battleship mode.)

Example (Penpa): https://tinyurl.com/ysnylv3a

Solve in 2:30 or under for a Speedy Sloth! 🦥
Complete in 4:30 or under for a Quick Crab! 🦀
And all solvers who complete the puzzle will earn a Light House Sparrow!

Puzzle (Penpa): https://tinyurl.com/yohvx3oz