MYSTERYIC: Murder SudokuDETECTIVE GAME

Free Online Murder Mystery Game — Today's Detective Sudoku Puzzle

PUZZLE

Loading…

—

    New puzzle in — midnight US Eastern · solved 0 so far

    How to Play Murder Sudoku

    Every clue is a fact, and exactly one arrangement of suspects can satisfy all of them at once. Your job is to find it — by elimination, not by trial and error.

    1

    The red skull is the victim

    No one can be placed on that square; some clues describe positions relative to it.

    2

    Read the clues as facts

    “Hugo stood right beside the table.” “Nora was west of Percy.” Nothing is misleading and nothing is probable. Tap a clue to strike it out once you have used it.

    3

    Place suspects on the plan

    Pick a suspect from the strip, then tap a square. The sudoku rule applies: no two suspects may share a row or a column, so every placement closes a whole row and column for everyone else.

    4

    Eliminate until one answer stands

    Use Cross to mark squares a suspect cannot occupy and Notes to jot candidates. When only one arrangement survives every clue, the case closes.

    Full guide with examples →

    A Logic Puzzle That Never Asks You to Guess

    What separates this from most free online brain games.

    One provable solution

    Each puzzle is produced by a solver that must reach the answer through a ladder of logical rules. If it needs a guess, the puzzle is thrown away and never published.

    A new case every day

    One puzzle a day, the same one for everybody, replaced at midnight US Eastern Time. Difficulty climbs as the days go by — from Apprentice to Master.

    Everything here is free

    No account, no paywall, no ads on the site, and hints cost nothing. The website is the complete game — the app simply adds offline play.

    Plays anywhere

    Phone, tablet or desktop, in any modern browser, on one screen with no scrolling. Progress stays in your browser, not on a server.

    Mysteryic

    Not enough with one a day?

    The free iOS app carries 1000 puzzles offline in 18 languages — play as many as you like, with no connection.

    Get the free app

    Frequently Asked Questions

    Everything people ask before their first case.

    Is this puzzle game really free?

    Yes. The daily puzzle is free to play online, with unlimited hints and no sign-up. There is nothing to buy on the website.

    What is murder sudoku?

    It is a deduction puzzle that borrows one rule from sudoku: no two suspects may share a row or a column. You read the clues, place every suspect on a 6×6 floor plan, and the single arrangement that satisfies all the clues names the killer.

    When does the new puzzle appear?

    Every day at midnight US Eastern Time. The countdown under the board shows exactly how long is left, and the page refreshes itself when the clock runs out.

    Do I need to guess?

    Never. Every puzzle has exactly one solution reachable by pure logic, and the generator proves it before the puzzle is published.

    Can I play yesterday's puzzle?

    No — the daily puzzle is the whole point, and it is gone when the day turns. The free iOS app has 1000 puzzles you can play whenever you want.

    Can I play on my phone?

    Yes, in any modern mobile browser with nothing to install. The board, tools and clues all fit on one screen.

    Do I need to create an account?

    No. Your progress is stored in your own browser — no email, no password, no account.

    What do the tools do?

    Place puts the selected suspect on a square. Cross marks squares a suspect cannot occupy. Notes writes a suspect's initial as a reminder. Erase clears a square. Hint places one suspect correctly — free and unlimited here.

    Is it suitable for children?

    The puzzles involve a fictional crime but contain no graphic content. The App Store rates the app 12+.