Overview
221B Baker Street: The Master Detective Game is a deduction board game where each player assumes the role of Sherlock Holmes. Players move around a map of Victorian London, visiting locations to gather clues that help solve a mystery case. The first player to deduce the correct answers and return to 221B Baker Street wins. Cases involve identifying elements such as the killer, weapon, and motive.
Components
- 1 Playing Board (map of London)
- 1 Die
- 6 Tokens (player pieces)
- 20 Case Cards
- Clue Booklet
- Answer Booklet
- Solution Checklist pad
- 8 Scotland Yard cards
- 8 Skeleton Key cards
Setup
- Each player selects a token and places it at 221B Baker Street on the board.
- Each player takes 1 Skeleton Key card and 1 Scotland Yard card.
- Place remaining Scotland Yard and Skeleton Key cards at their designated locations on the board.
- Each player obtains a Solution Checklist sheet and a pen or pencil.
- One player takes a Case Card and reads the adventure aloud — read once quickly, then again more slowly.
Turn Structure
- Roll the die to determine who goes first (highest roll). Play proceeds clockwise.
- On each turn, a player rolls the die and moves their token that many spaces in any direction (except diagonally).
- Upon arriving at a location, the player may look at the clue for that location in the Clue Booklet. Players have up to 30 seconds to study a clue and must look at only the clue they are entitled to see.
- Players record clue information on their Solution Checklist.
- When a player believes they have solved the case, they must return to 221B Baker Street via normal turns and rolls.
Actions
Movement
- Roll the die and move that exact number of spaces.
- Movement may be in any direction (but not diagonal).
- Players must land exactly on a location entrance to enter and read a clue.
Reading Clues
- General Statement Clues: Provide factual information about the case.
- Puzzle Clues: Syllable-based riddles labeled by category (killer, weapon, motive, etc.), often split across multiple locations — players must assemble complete answers from parts found at different locations.
Using Scotland Yard Cards
- After visiting a location and leaving, a player may place their Scotland Yard card over the entrance to seal it off, preventing other players from entering.
- Restrictions: Cannot seal 221B Baker Street, Scotland Yard itself, or the Locksmith shop.
- Replacement Scotland Yard cards can be obtained by visiting Scotland Yard (if the player does not currently hold one).
Using Skeleton Key Cards
- A Skeleton Key card can be played to unlock any location sealed by a Scotland Yard card.
- Place the Skeleton Key on top of the Scotland Yard card blocking the entrance.
- Replacement Skeleton Key cards can be obtained by visiting the Locksmith shop (if the player does not currently hold one).
Carriage Depot
- When a player enters the Carriage Depot, they may either check the clue there OR immediately (without checking the clue) move to any other location on the board without rolling the die.
- Alternatively, check the clue and then on a subsequent visit, use the free movement.
Scoring / Victory Conditions
- A player must return to 221B Baker Street via regular turns and die rolls.
- The player announces their solution to all lettered items on the Case Card (e.g., a) killer, b) weapon, c) motive).
- The player does NOT need to explain the full intricacies of the case — only give correct answers to all items.
- If correct: that player wins the game.
- If incorrect: that player is eliminated from the game. Remaining players continue playing.
Special Rules & Edge Cases
- Players may NOT announce a solution unless their token is at 221B Baker Street.
- A player may only make one solution attempt. An incorrect guess means elimination.
- Scotland Yard cards and Skeleton Key cards are single-use but can be replaced at their respective locations.
- The Carriage Depot provides a powerful mobility advantage — it allows free teleportation to any location without a die roll.
- Clues at sealed locations are hidden from all players until the seal is broken with a Skeleton Key.
- Players should take careful notes on their Solution Checklist, as clues may be cryptic or require combining information from multiple locations.
Player Reference
Turn Sequence:
- Roll die → Move token
- Enter location → Read clue (30 sec max) → Record notes
- Optionally play Scotland Yard card when leaving a location
- When ready: return to 221B → Announce solution
Special Locations:
| Location | Effect |
|—|—|
| Carriage Depot | Free movement to any location (no die roll needed) |
| Scotland Yard | Pick up replacement Scotland Yard card |
| Locksmith | Pick up replacement Skeleton Key card |
| 221B Baker Street | Starting point; must return here to announce solution |
Card Usage:
| Card | Use | Cannot Seal |
|—|—|—|
| Scotland Yard | Seal a location entrance | 221B, Scotland Yard, Locksmith |
| Skeleton Key | Unlock a sealed location | — |