What is the earliest position where black has forced mate in under 10 moves on white to move (and vice versa)? - Quora
Chess: What is the longest sequence of moves that force a checkmate? - Quora
Chess Puzzles of the day - LONGEST Forced move White to move mate black in 13 moves.... Any different way...? 1. Qb5+ 2. Ke1Bxf2+ 3. Kxf2Qc5+ 4. Kf1Qc1+ 5. Kf2Qxd2+ 6. Kg3Qe3+
What is the longest mating line ever declared at the chessboard before initiating the combination? - Quora
Articles
Longest Forced Mate in 549 | These Moves Look F#!&ing Random !! - YouTube
The Longest Forced Checkmate I've Ever Seen !! ( 130 Moves ) !!😱😲 - YouTube
Longest Forced Checkmate in 549 Moves 😱😲| Chess - YouTube
White to move and mate in 585. (Longest forced mate ever found) : r/AnarchyChess