Lichess analysis says checkmate unavoidable. I don't seem to get

im a beginner and i want to know if this was a checkmate because the player left and i don't understand : r/chessbeginners

Game Analysis #3: Nimzowitsch Defense, Franco-Nimzowitsch Variation

I still don't know how to embed a chess position (FEN) in the forum - PLEASE HELP • page 1/1 • Lichess Feedback •

I Have Been Canceled On Twitter and Muted On Lichess - Month in Chess(entials) #2 - Chessentials

TeoKajLibroj's Blog • This tournament was a trip down memory lane • lichess .org

What is the Definition of Mistake in analysis check - is it really appropriate?! • page 1/2 • Lichess Feedback •

General Chess – Hammersmith Chess Club

In chess, why can't an absolutely pinned piece move to deliver checkmate? - Quora

Waterville Chess Club Archives

What defines a blunder vs mistake to a computer analysis? This seems like a blunder from my opponent but the computer doesn't agree. : r/chess

Game awarded draw instead of victory when player timed out. • page 1/2 • Lichess Feedback •