Dacha Tactics #81 - GothemChess topples the light resistence

I saw this in a Gothamchess video, he was showing this interesting position where there is 1 and only 1 winning move. It got me thinking about how we can use the colors as a proper guide to finding this outstanding idea of his. So, the color $ is equal, but it would seem the critical color is absolutely light. Blacks queen on light attacks our king and also prevents monkey business on light, c6, d7, etc. Black's king is shaky, but if he escapes to safety, that will be an absolute shame. So, we need some light help!! Any little bit may topple the black defenses...