"loadgame deep-blue 2" -- load game 2 of deep-blue's history list.
"loadgame %1" -- load game %1 of your personal library.
"loadgame 5" -- load game 5 in your search list
Loadgame is only available when playing wild variant 20, and then
only at the start of the game. It copies the final position and move
list of the specified game to the w20 game you are playing. This can
be used to play games starting from an arbitrary position, e.g.
for practicing a certain opening or type of endgame. You can also use
loadgame to play out a history game in which one of the players
resigned or ran out of time.
Note that if your opponent does a loadgame of a position that you
don't want to play, you can abort unilaterally before you move. But
even so, there is some potential for trickery, so we do not advise
playing rated w20 games. Also note that this is NOT the normal way
to resume an adjourned game (just "match" your opponent).