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Mr. Jack

#21763BGG ↗

2006 · 2-2 players · 30min · weight 2.17 · 19,003 ratings

v2 v3 fit 0.469

BGG raw

ID
21763
Name
Mr. Jack
Year
2006
Rank
459
Min players
2
Max players
2
Playing time
30
Min playtime
30
Max playtime
30
Avg weight
2.1718
Num weights
1199
Bayes avg
6.76728
Average
6.96052
Users rated
19003
Num owned
25439
Wanting
385
Wishing
3244
Num comments
3860
Fetched at
Sat Apr 25 2026 16:15:55 GMT+0000 (Coordinated Universal Time)
Mechanisms (4)
Grid MovementHexagon GridOpen DraftingVariable Player Powers
Categories (2)
DeductionMurder / Mystery
Description (1000 chars)

In Mr. Jack, one of the two players represents Jack the Ripper, who will be one of the eight characters on the board. This player knows which character is Mr. Jack, and his goal is to flee from the district as soon as possible (or avoid being accused for eight turns). The other player represents an independent investigator (not represented on the board) who tries to guess the identity of Jack — but he can make only one accusation during the game! During each turn, the players move the characters, using their special powers and placing them either in shadow or light. At the end of each turn, the witnesses declare whether Jack is visible — that is, in light or adjacent to another character — or not (alone in the shadows). This allows the investigator to know which characters are innocent. As the turns progress, the investigator tries to eliminate suspects while Jack tries to escape. Intuition, logic, and cold blood will be necessary for each of the two participants.

LLM v2 (wide)

Core verb
move character, light or shadow
Decision shape
mixed:social+combinatorial
Reward schedule
delayed
Aesthetics
["Challenge", "Narrative"]
Core loop pitch
Move suspects around Whitechapel; the witness reveals if Jack is lit or hidden, narrowing identity each turn.
Translation difficulty
Easy
Difficulty reason
Tight 2-player deduction with deterministic logic. Already ported (Mr Jack Pocket on iOS/Android) and on BGA.
Direct digital port
Mr Jack Pocket (iOS/Android, Hurrican)
Port kind
first_party
Closest loop translation
none yet
Primitive tags
["suspect_elimination_logic", "shared_pawn_drafting", "lit_versus_shadow_state", "deduction_constraint_propagation", "character_power_swap"]
Confidence
0.75
Extracted at
Mon Apr 27 2026 11:40:03 GMT+0000 (Coordinated Universal Time)
Raw v2 JSON (919 chars)
{
  "game_id": 21763,
  "name": "Mr. Jack",
  "core_verb": "move character, light or shadow",
  "decision_shape": "mixed:social+combinatorial",
  "reward_schedule": "delayed",
  "aesthetics": [
    "Challenge",
    "Narrative"
  ],
  "core_loop_pitch": "Move suspects around Whitechapel; the witness reveals if Jack is lit or hidden, narrowing identity each turn.",
  "mobile_translation_difficulty": "Easy",
  "translation_difficulty_reason": "Tight 2-player deduction with deterministic logic. Already ported (Mr Jack Pocket on iOS/Android) and on BGA.",
  "direct_digital_port": "Mr Jack Pocket (iOS/Android, Hurrican)",
  "direct_digital_port_kind": "first_party",
  "closest_loop_translation": "none yet",
  "primitive_tags": [
    "suspect_elimination_logic",
    "shared_pawn_drafting",
    "lit_versus_shadow_state",
    "deduction_constraint_propagation",
    "character_power_swap"
  ],
  "confidence": 0.75
}

LLM v3 (deep)

Not yet enriched at v3 (deep pass).