Every detective in the world got these same crime scenes on 2026-10-26 — 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 3 rooms: Tropical House, Lily Pond, Compost Yard. Six statements, five squares nobody could stand on, and no assumption anywhere: elimination alone closes it.
Cracked by 7 detectives so far.
A 5×5 grid across 3 rooms: Lily Pond, Cactus House, Visitor Center. Eight statements, three squares nobody could stand on, and enough testimony that the surplus is what pins the last two down.
Cracked by 3 detectives so far.
A 6×6 grid across 5 rooms: Lily Pond, Tropical House, Orchid House, Cactus House, Visitor Center. Seven statements, eight squares nobody could stand on, and no assumption anywhere: elimination alone closes it.
Cracked by 6 detectives so far.
A 6×6 grid across 4 rooms: Lily Pond, Garden Path, Cactus House, Seed Vault. Six statements, seven squares nobody could stand on, and no assumption anywhere: elimination alone closes it.
Cracked by 2 detectives so far.
A 7×7 grid across 6 rooms: Compost Yard, Cactus House, Tropical House, Orchid House, Lily Pond, Palm Pavilion. Nine statements, ten squares nobody could stand on, almost as many rooms as suspects, so a room claim nearly names a square, and no assumption anywhere: elimination alone closes it.
Cracked by 2 detectives so far.
A 7×7 grid across 5 rooms: Orchid House, Tropical House, Palm Pavilion, Cactus House, Lily Pond. Ten statements, nine squares nobody could stand on, and one round of assume-and-test after elimination ran dry.
Cracked by 6 detectives so far.
A 10×8 grid across 6 rooms: Lily Pond, Compost Yard, Cactus House, Orchid House, Tropical House, Visitor Center. Ten statements, thirteen squares nobody could stand on, and one round of assume-and-test after elimination ran dry.
Cracked by 2 detectives so far.
An 8×8 grid across 6 rooms: Orchid House, Palm Pavilion, Tropical House, Compost Yard, Visitor Center, Seed Vault. Sixteen statements, twelve 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.
Cracked by 2 detectives so far.
A 9×9 grid across 8 rooms: Compost Yard, Garden Path, Visitor Center, Tropical House, Orchid House, Cactus House, Seed Vault, Lily Pond. Nineteen statements, sixteen squares nobody could stand on, almost as many rooms as suspects, so a room claim nearly names a square, 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; the accusation also demands the motive, not just the name.
Cracked by 2 detectives so far.
A 9×9 grid across 7 rooms: Garden Path, Orchid House, Lily Pond, Tropical House, Compost Yard, Cactus House, Visitor Center. Twenty statements, thirteen 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.
Cracked by one detective so far.
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 25 October