One player acts as Sherlock Holmes for the round. They select a choice in each of five clue categories (age & sex, height & weight, color of hair, access, and weapon) and hides his choices from the other players. The other players move around the board trying to decipher which clues the Holmes player chose.
When one player decides they have enough information to go to 221B Baker St., they move there and all of the non-Holmes players make their best guesses in all five categories. Players score 20 points for a correct guess. The player who made it to 221B Baker St. earns a 100-point bonus if they get all five categories correct. Holmes scores 10 points for each incorrect guess made by any player.
After scoring, the next player becomes Holmes and another round is played. This continues until each player has been Holmes once. Scores for all of the rounds are added up to determine the winner.