Does it make any difference if the investigators can correctly identify the phantom even if they haven't ruled out all the other suspects? I was playing as the investigators. There were three suspects left. I intuited correctly that the phantom had to be Madame Giry, just from intuition and watching the phantom player's concerns. I tried to use my last turn to isolate Giry, but was unable to do so. Does it count as anything if I knew it was Giry but couldn't make it so that she was the only suspect?
My son try's to do this every time, but suspecting and proving are two different things, your supposed to expose and prove who the Phantom is not just suspect. Kills the game play just guessing at who the phantom is, the whole game is creating situations to expose or conceal who the phantom is.
By the rules, as the investigator you must rule out every other suspect during in order to win. The designers other game, Mr Jack, the investigators are allowed to guess (by landing on the same space as a suspect - if that is Mr Jack they win, otherwise they lose)