National Puzzle Day is January 29th every year. It was created by Jody Jill in 2002 as a way to share her joy of puzzles. I found out about it yesterday and decided to place a geocaching puzzle today. Even though I missed it by one day this year I hope you will enjoy this Light Up puzzle.
Here are the rules for solving a Light Up puzzle, from Wikipedia:
Light Up is played on a rectangular grid of white and black cells. The player places light bulbs in white cells such that no two bulbs shine on each other, until the entire grid is lit up. A bulb sends rays of light horizontally and vertically, illuminating its entire row and column unless its light is blocked by a black cell. A black cell may have a number on it from 0 to 4, indicating how many bulbs must be placed adjacent to its four sides; for example, a cell with a 4 must have four bulbs around it, one on each side, and a cell with a 0 cannot have a bulb next to any of its sides. An unnumbered black cell may have any number of light bulbs adjacent to it, or none. Bulbs placed diagonally adjacent to a numbered cell do not contribute to the bulb count.
To solve this Light Up puzzle ignore the numbers in the light squares of the puzzle.
After you have solved the Light Up puzzle, it will require simple addition to get the coordinates. There are eight marked regions on the grid, labeled 'A' - 'H'. In each region total the digits in the squares where you have placed a light bulb. The value for each region is the rightmost digit (digit in the 1's place) of this total.
The coordinates for this cache are N 41° 1A.BCD' W 111° 5E.FGH'.
You can validate your puzzle solution with certitude.
Congratulations to runninbear1 and Dix1 for being first-to-find.
