Everything people ask before their first case.
Yes. The daily puzzle is free to play online, with unlimited hints and no sign-up. There is nothing to buy on the website.
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.
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.
Never. Every puzzle has exactly one solution reachable by pure logic, and the generator proves it before the puzzle is published.
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.
Yes, in any modern mobile browser with nothing to install. The board, tools and clues all fit on one screen.
No. Your progress is stored in your own browser — no email, no password, no account.
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.
The puzzles involve a fictional crime but contain no graphic content. The App Store rates the app 12+.
