Casebook vs ONE KILLER LEFT

Every statement is true. And someone is still guilty. Read the testimony side by side, find the contradiction, and name the culprit. In Case Arcs, five cases in each scene tell one story. ◆ Free to start. No subscription (one-time purchase) ◆ No third-party ads ◆ Your records stay on your device HOW IT PLAYS - Nobody lies to you. The statements just don't point anywhere until you cross-reference them - Three kinds of clues: testimony from witnesses, alibis that say where someone was, and scene evidence left behind by the objects themselves - "The Butler was not in the study." "The one who carried the candlestick was in the greenhouse." Mark the grid and rule things out - When the grid is done, one question remains: who is the culprit? - There is exactly one answer, and the app checks that for every case FEATURES Your first case The first time you open the app, you solve a small case together, one step at a time. You can skip it at any time. Today's Case One case a day, built from the date. Everyone gets the same case. Fresh cases Cases are built on the spot, and recent ones are avoided. Four levels From a Minor Case (3x3) to a Cold Case (6x6). Four scenes The Snowed-In Lodge, The Night Express, The Hot-Spring Inn, The Old Manor. Each has its own suspects, objects and rooms, and every case file gives a one-line history for each suspect. Case Arcs Five connected cases in each scene. Read what happened the night before, solve the case, and the next one opens. Hints that teach Instead of filling in the answer, a hint can point you to the two statements worth reading together. You can still open a single cell. Your casebook Every case you close is filed on a shelf with its seal. Detective rank Apprentice, Assistant, Detective, Inspector, Master Detective, Legend. Your stats also show how many times you have named each suspect. Tools of the trade Pencil marks and auto-elimination. WHO IT'S FOR - Readers who have finished every Christie and want to do the detecting - Sudoku players who would rather reason in words than in numbers - Anyone who wants five quiet minutes on the train or before bed - Anyone who likes a story that keeps going, one chapter at a time PRIVACY - No account and no sign-up - Cases are generated on your device, and your records stay there - No third-party advertising or analytics SDKs - The app may contact Apple's public API to show other apps by the same developer. Nothing about you is sent

A name hidden among thousands. No luck, no shortcuts: every clue is a verifiable fact, and only one person fits them all. ONE KILLER LEFT is a pure deduction game, inspired by the mass-elimination mystery books taking off worldwide. Read the clues, cross out whoever doesn't fit, and keep going until only one name remains. FOUR LEVELS, FOUR CHALLENGES · Easy (~100 names) — learn the mechanic in 10 minutes. · Medium (~500 names) — now you're cross-referencing multiple clues at once. · Hard (~2,000 names) — for players who want a real challenge. · Impossible Case (40,000 names) — the flagship mode. This won't be solved in one sitting: your progress saves itself, and you can come back anytime until it's cracked. CASE OF THE DAY A new case every day, the same one for everyone. Compete with yourself, compare results with friends, keep your streak alive. NO SHORTCUTS, UNLESS YOU CHOOSE THEM In the smaller levels, everything is done by hand — like a book and a pencil. In the Impossible Case, you can apply automatic discards if you prefer, but solving it 100% by hand earns its own reward: a badge that shows it. NO ACCOUNT, NO SIGN-UP Just open the app and play. Your progress, rank, and streak are saved right on your device. Do you dare take on 40,000?