Play Cluedo

Shuffle the 3 decks separately and select the top card from each and place in the middle.

Reshuffle all 3 decks together and deal out to all players

Place a game piece on each starting point for each character.  Each player chooses a character but all game pieces must be on the board to play the game.

The players then mark off the cards they have on their clue sheets.

In the normal game, each player has to roll the dice to go to a room and make a selection.  To speed up, you can skip this and allow the players to simply move from room to room making their guesses.

When a player is in a room, they can guess the murder weapon and murderer.  The other players then need to confirm secretly to the player if they have any of the cards the player has mentioned. This is marked on the clue sheet.

Continue to take turns until someone is ready to make an accusation.  If correct, you win (i.e. all players confirm they don't have any of the cards and then the cards are checked).  If anyone does have one of the items mentioned, you are out of the game.

If you are correct, you win.