Master Detective · 24 May 2026 · Blackwood Hall
A fog-laden evening. An invitation that proved fatal. The manor holds the answer, if only the detective can read its shadows.
This Master Detective case is set in Blackwood Hall and puts 6 suspects, 6 rooms, 6 weapons, 11 clues on the board. 4 detectives filed a correct verdict on the day it ran. Detectives who cracked it took a median of 3 minutes.
Deduce cases are logic-grid deduction puzzles: read the clues, eliminate the impossible, and name who did it, where, and with what. This case was verified by a constraint solver as solvable by deduction alone before it was published. The solution is not published here — the only way to know is to work it out.
Play this case · Play today's case · All past cases · How to solve a logic-grid puzzle