Every detective in the world got these same crime scenes on 2026-11-03 — each difficulty published twice, once untimed and once as time attack. Each case is procedurally generated and then proved to have exactly one logical solution before it is published, including the cases where somebody is lying. You place every suspect back on the map using only their testimony: exactly one person per row, never two in a column. Whoever is left alone with the victim did it.
A 5×5 grid across 4 rooms: Bear pit, Gift shop, Elephant yard, Aviary. Six statements, five squares nobody could stand on, and no assumption anywhere: elimination alone closes it.
A 5×5 grid across 3 rooms: Bear pit, Aviary, Entrance. Six statements, five squares nobody could stand on, and no assumption anywhere: elimination alone closes it.
A 6×6 grid across 4 rooms: Aviary, Lion den, Café, Entrance. Five statements, nine squares nobody could stand on, and fewer statements than suspects — every line has to be squeezed twice.
A 6×6 grid across 5 rooms: Café, Elephant yard, Gift shop, Entrance, Bear pit. Eight statements, nine squares nobody could stand on, and no assumption anywhere: elimination alone closes it.
An 8×7 grid across 5 rooms: Lion den, Main path, Aviary, Bear pit, Elephant yard. Nine statements, ten squares nobody could stand on, and one round of assume-and-test after elimination ran dry.
A 7×7 grid across 5 rooms: Lion den, Gift shop, Elephant yard, Aviary, Bear pit. Eight statements, ten squares nobody could stand on, and no assumption anywhere: elimination alone closes it.
An 8×8 grid across 6 rooms: Elephant yard, Aviary, Bear pit, Penguin pool, Café, Main path. Fifteen statements, fifteen squares nobody could stand on, and one round of assume-and-test after elimination ran dry — and one of the eight was lying throughout.
The twist: one suspect is an accomplice — every statement they make is false.
A 9×8 grid across 7 rooms: Entrance, Bear pit, Lion den, Penguin pool, Café, Main path, Aviary. Thirteen statements, fifteen squares nobody could stand on, almost as many rooms as suspects, so a room claim nearly names a square, and one round of assume-and-test after elimination ran dry.
A 9×9 grid across 7 rooms: Bear pit, Main path, Aviary, Elephant yard, Penguin pool, Café, Gift shop. Fifteen statements, fifteen squares nobody could stand on, and two rounds of assume-and-test after elimination ran dry — and one of the nine was lying throughout.
The twist: one suspect is an accomplice — every statement they make is false.
A 10×9 grid across 7 rooms: Aviary, Café, Main path, Bear pit, Gift shop, Lion den, Penguin pool. Eleven statements, sixteen squares nobody could stand on, and two rounds of assume-and-test after elimination ran dry.
The twist: the accusation also demands the motive, not just the name.
The grid size is the size of the crime scene, so a 10×9 expert case is a far larger search than a 5×5 beginner one — but the difficulty is really carried by the clues, not the square count. A beginner case tells you almost directly where somebody stood. An expert case tells you where somebody was not, three times, and expects you to do the rest — and on half of them one of those statements is a lie told to protect the killer. If a case lists a motive, naming the right person is not enough on its own; you have to prove why.
How to play · Solving cases with a liar · Techniques
Every day's cases — the calendar · ← the cases for 2 November