Live recording and Solution to the dreaded Sunday Puzzle

The Sunday Puzzles are reaaaaalllyyy hardddd. Scores of chess.com players often flood the chess.com comments with endless despair about how they were unable to solve or understand the Sunday Puzzle (or even how ez it was... Like whatevs.) 

Thankfully salvation has come for you today! I have the answer and key to this solution as well as my thought process going through this puzzle around how to solve it!

Live recording of me solving

Solution and break-down

Day 21