Mint Mystery

ONE COIN HAS A SECRET

One of nine coins is heavier. All others weigh exactly the same.
Select a coin, then cycle its place: tray → left pan → right pan → tray.
Use at most two weighings per case. Equal pan counts are required.
Select the culprit and accuse it. One wrong accusation ends the investigation.
Keys 1–9 select · Space cycles place · W weighs · Enter starts/continues
G accuses · C clears · P pauses · R restarts · F fullscreen · Escape exits.