GMPuzzles - 2022/12/18 - Castle Wall by Stefan Liew

Puzzle post (and rules) at: https://www.gmpuzzles.com/blog/2022/12/sunday-stumper-castle-wall-by-stefan-liew/
Online solving link: https://gmpuzzles.com/s/221218Outs

Can you solve this hard Sunday Stumper by Stefan Liew? It takes some different kinds of thinking, and here Thomas Snyder (who felt defeated by the puzzle until he caught onto an important observation) shares the secrets that the author hid.

Видео GMPuzzles - 2022/12/18 - Castle Wall by Stefan Liew канала Thomas Snyder