Sam is currently standing on a tree as he watched through the telescope. There is a faint smile on his face as he looked at the Grey-winged man hitting the concealed formation.
Actually, after the shadow was gone and the pigeon was sent, he already moved the whole set up backward.
As for the prisoners, Sam thought of something. He doesn't have any goals on this planet. He doesn't want to develop here or gain influence here. The ruling creatures of this planet are not exactly on friendly terms with him and it would be impossible to develop those friendly terms and these guys already knew most of the details about the players and the game they are playing.
So, he doesn't have to hide some of the cards he has in his hand.
After this thought came, he took the most highly powerful sedative and gave it to the prisoners. He then threw them into the chessboard as a temporary prison. Even if the sedative wore off, the most they can do is feel trapped in an unknown thing.