What Murder Grid is
A daily deduction puzzle. You solve a 6×6 sudoku to earn evidence, use that evidence to catch the two liars among five statements, and then name the culprit, the room and the weapon. Your sudoku skill is the currency you buy clues with.
The rules in short
- Fill the 6×6 grid with 1–6 — no repeats in a row, a column, or a 2×3 box.
- Completing a row or a box opens the envelope pinned to it. Inside is evidence.
- Forensics narrows the scene. An alibi clears one suspect — but only once you know where and with what.
- Each forensic result contradicts exactly one statement: one about the room, one about the weapon. Those two people are lying.
- The culprit is one of the two liars. Lock the room and weapon with the three true statements, then read the alibis.
Three things that help immediately
- Chase rows before boxes. On a 6×6 grid a row usually closes first, so you bank evidence earlier.
- Re-read every alibi once the room and weapon are fixed. Before that they are undecidable — this is where the game is won.
- Pin the liars first, think about the culprit second. The structure is two-stage: two liars, then one of them.
Questions
Does the puzzle change daily? Yes — generated deterministically from the date, so everyone plays the same case on the same day. You can also pick a difficulty.
Can a case have two answers? No. A full year of cases is verified before release: the sudoku solution is unique, and so are the culprit, room and weapon.
Do I need an account? No. Your history stays in your browser and is never sent to a server.
Full rules and strategy →