is it possible to fix it:
in a script let say .kickban nick (only one space between .kickban and nick - works ok)
but when
.kickban nick (2 spaces between .kickban and nick - doesn't work)
Are you shure it's the dcc command? As far as I can understand from what he said is from his tcl script or something, not from eggdrop channel commands. Anyway, the things you've said are correct.
Once the game is over, the king and the pawn go back in the same box.