Time to put on your deerstalker and see if you've got what it takes to be a detective — but do it quickly or others will solve the case first.
In Crazy Sherlock you must identify five clues related to the crime: the criminal's eye color, their height, their accessory, the location, and the time. The game contains 18 clue cards divided into these five categories, and to start, place one card from each category to the side, shuffle the remaining cards and deal them out as evenly as possible.
When the round starts, start a 15-second timer. Each player has so much time to look at their cards, after which they pass them to the left, the timer restarts, and they can look at their new cards. They keep passing cards until someone takes the announcement token, which stops the timer. This person makes their guess in each clue category, then looks at the cards set aside. If correct, they receive a case token indicating 1; if they already have a case token, they win the game.
If they get it wrong, they lose a case token (if they have one), then the round continues, with the change that this person passes cards, but doesn't get to guess. Continue playing until someone guesses correctly, or only one player remains, in which case they automatically win.
With the "Doctor Watson" variant, each player takes a voting token at the start of the game, and when someone announces their guess, all other players simultaneously reveal whether they think the guesser is correct. If everyone votes yes, the gambler automatically wins a clue token. If the votes are split and the guess is correct, the guesser wins a clue token and gives a clue token to someone who supported them; if the votes are split and the guess is incorrect, everyone who voted for the guesser is also out of the round. The first player to collect three clue tokens wins.