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Select Play Now in the embedded player, then Start. You can continue as a guest. For an unrevealed case, click once to reveal it and again to open the puzzle.
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Play Murdoku Online Free
Murdoku is a deduction puzzle by Manuel Garand. Use the clues to place people in a crime scene, then identify who was alone with the victim.
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New to Murdoku? Read the rulesFollow a worked Murdoku deduction example
The embedded version currently supports desktop computers only. On a phone, open Murdoku on the official site.
Play MURDOKU in Your Browser
Play Murdoku online free in your browser. Place suspects at the crime scene, solve the Sudoku-style murder mystery, and reveal the killer. No download.
Murdoku rules and first moves
Start with definite placements, eliminate impossible squares, and use the completed scene to identify the killer. Rules and a full desktop Car Repair case checked on October 11, 2026.
Notes versus confirmed placements
Select a suspect. A short click on the grid writes a note; press and hold to confirm that person’s location. Use Undo to reverse your last action.
One person in each row and column
Every placement rules out that row and column for the remaining people.
Read the scene legend
Objects can mark blocked spaces; rooms and floor markings help interpret the clues.
Check what “beside” means
Use a neighboring square above, below, left or right, within the same area. Diagonal squares do not qualify.
Separate candidates from facts
If several squares still fit, keep them as possibilities rather than treating a guess as a confirmed placement.
Find who was alone with the victim
Solve the positions first, then check who shares the victim’s area with nobody else.
Phone availability
The upstream embedded version blocked phones during the October 11 check. Use a desktop here, or open the official site using the link above the player.
Overview
Murdoku is a deduction puzzle by Manuel Garand. Use the clues to place people in a crime scene, then identify who was alone with the victim.
The grid contains people and locations rather than a conventional set of Sudoku numbers. Each person must occupy a different row and column, while also satisfying the clues for that case.
Read the scene legend before placing anyone: furniture and other marked spaces can restrict where a person may stand. The official site offers free online cases and separate puzzle books.
Worked example (invented for this guide, not a solution to an official case): imagine Mira can stand at either row 2, column 1 or row 2, column 4. A different clue fixes Leo at row 5, column 1. Because two people cannot share a column, Mira’s first candidate is eliminated, leaving row 2, column 4.
That placement also removes row 2 and column 4 from the remaining people’s candidates. Keep repeating this process, but check every clue before confirming a location. A clue about a room narrows the options; it does not necessarily identify a single square.
The final question is about the area containing the victim, not simply the nearest person on the grid. Identify the one person alone with the victim after the full arrangement satisfies the clues.
Keywords
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How to Play
Read every clue and the scene legend. Start with a person whose clue identifies a specific area or feature.
After placing a person, rule out their row and column for everyone else. Recheck earlier clues whenever a new placement removes possibilities.
When all positions fit the clues, find the person sharing an area with the victim and nobody else. That person is the killer.
Game references
Browser controls and troubleshooting
Treat “beside” as a horizontal or vertical neighbor in the same area, not a diagonal.
Use the clues and occupied rows to eliminate options before guessing.
Do not place a person on furniture just because it fits a clue: check the scene legend for blocked squares.
Avoid naming a killer from one clue. Finish the arrangement and verify the victim’s area first.
If the player stalls, try Reload player or the separate game page. Reloading may lose unsaved progress; saving and controller options depend on the loaded game.
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FAQ
What kind of puzzle is Murdoku?
Murdoku is a deduction puzzle with people, locations and clues. It uses row-and-column elimination, but its goal is to identify the person who was alone with the victim.
How do I solve a Murdoku case?
Use the clues and scene legend to place each person in a unique row and column. Then find the person who shares an area with the victim and nobody else.
Where can I find the original Murdoku rules?
The Game references section links to Manuel Garand’s official Murdoku site and a printable case with the full rules.
Does “beside” include diagonal squares?
No. In the official Courtroom rules, beside means a horizontal or vertical neighboring square in the same area.
Is the worked example an answer to a real case?
No. Mira and Leo are fictional names in an original teaching example. It demonstrates elimination without revealing an official puzzle solution.
Why will the embedded game not start on my phone?
The upstream player currently restricts this entry to desktop computers. Use the official-site link above the player for phone play. Website language settings do not remove the upstream device restriction.
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