REBEL 15.1

Maybe Boban does not know how to post a .pgn here? That is easy Boban but not even Chris has posted his own pgn's yet. Or maybe Boban never makes copies of his games, or stores them in some different format?

Posting individual positions in this forum is only possible with a pgn (I think), or making a full screenshot and then posting that via imgBB perhaps (very circumspect all), or Manfred Rosenboom's old tool I think.

What Boban describes could be related to Zugzwang but it is impossible to know with just a description of what you think you saw somewhere... Maybe install Ed's new Arena plus Rebel on your computer? (so you can make a .pgn with that)

Yep, and it's described here - https://prodeo.actieforum.com/t76-how-to-post-chess-games-and-puzzles

No, I know how to post a pgn. But I was at my ill mother's home where I did not have an internet connection. I posted when I went home for a few hours.

I will prepare several pgn in a few days, if I can.