Murder Mystery Sudoku

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Case #18 Sunday, 18 October 2026
Tricky · 30 clues
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CASE FILE

Night Train to Vienna. Mr. Julian Marsh was found dead in a locked sleeping compartment somewhere in the Alps, at 12:10 am. Six people had a motive and the chance. The sudoku holds the truth: solve it, read the three marked cells, and name the killer.

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0:00

Suspects

  • 1Conductor Brandt
  • 2Mrs. Whitaker
  • 3Major Kessler
  • 4Nina the Journalist
  • 5Mr. Delacroix
  • 6The Dining Steward

Weapons

  • 1Ice pick
  • 2Sleeping powder
  • 3Walking cane
  • 4Luggage strap
  • 5Letter opener
  • 6Silver teapot

Locations

  • 1Dining car
  • 2Sleeping compartment
  • 3Luggage van
  • 4Locomotive
  • 5Observation car
  • 6Corridor
  1. SThe suspect is the number in row 4, column 7.
  2. WThe weapon is the number in row 9, column 1.
  3. LThe location is the number in row 3, column 4.
To check your answer
  1. The three numbers are all different.
  2. The weapon number is smaller than the suspect number.
  3. The location number is odd.

Who did it?

You have 3 accusations. Make them count.

1. Solve the sudoku

Fill every row, column and 3×3 box with the numbers 1 to 9. Tap a cell, then a number. Turn on Notes to pencil in possibilities.

2. Read the evidence

The three red cells marked S, W and L hold the numbers of the suspect, the weapon and the location.

3. Name the killer

Make your accusation. You get three tries. A new case opens every day at midnight, New York time.

Daily Whodunit
Case file No. 018
Confidential Murder Mystery Sudoku Sunday, 18 October 2026 Tricky ■■■□

Night Train to Vienna

Victim
Mr. Julian Marsh
Scene
In a locked sleeping compartment somewhere in the Alps
Time of death
12:10 am
123456789
123456789
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The evidence

  • SThe suspect is the number in row 4, column 7.
  • WThe weapon is the number in row 9, column 1.
  • LThe location is the number in row 3, column 4.

Corroborating facts

  • The three numbers are all different.
  • The weapon number is smaller than the suspect number.
  • The location number is odd.

The accusation

Case
closed

Killer

Weapon

Location

DetectiveTime