Digging into my dusted desk found a blue (paper!) notebook with yellow pages....
Suddently a thumbeling memory came over my eyes and remembered a chess play in my youth competitions where at the opponent black move 24...Tfe8 , I exclaimed in a silenced room: "Mate in 5 or 6 moves...!". ...One of a lifetime maybe...
I found it interesting that at 28 depth analysis chess.com (Stockfish) didn't find the forced checkmate :o