Puzzle 1
Description
Puzzle 1 is a puzzle game taking place on a grid. The player's goal is to change every tile from the initial "up" state into a "down" state. Whenever an "up" tile is clicked, its state is changed from "up" to "down", but its neighboring tiles (in a pattern indicated by the shape drawn on the tile) also switch their state (from "up" to "down" or vice versa).
The grids can be set to different sizes, and it's possible to ask for a hint about what tile to press.
