Tuesday, 17 May 2022

Eric Fox

Have you heard of the four-color map theorem? 🗺️ It claims that any "map", or division of a flat plane into distinct regions, can be colored using at most four colors 🔴🟡🔵🟢 such that no adjacent regions are the same color. Today, we'll put that to the test (kind of) with this Four-Color Tiles puzzle!

Rules: Place a number from 1 to 4 into each empty cell such that each cell is orthogonally adjacent to exactly one other which contains the same number.
(Equivalently, divide the grid into dominoes labeled 1-4 without touching dominoes containing the same number)

Example: https://tinyurl.com/yytrzrpv

Solve in 3:30 or under for a Speedy Sloth 🦥
Do it in 7:00 or faster for a Quick Crab 🦀
All successful solvers earn a Four-Colored Falcon 🐦

GAPP: https://tinyurl.com/y47544jj