What does a brilliant move mean? and anyone did it until now?
Brilliant move is a move that engine finds only after certain depth.
For example, engine scanned the game with depth 20. However, for
move gives you advantage as for engine at depth 25. Thus, brilliant move
is a move that engine finds to be best only after it is made.
Most commonly brilliant moves arise when you make zwischenzug, retreat instead of recapture,
and sometimes attacks.