The cases for 2026-08-10
Three deduction cases — Easy, Medium, Hard. Each has exactly one solution, reachable by logic alone. No guessing, ever. Solve any one to keep your streak.
Play these cases →Case Nº 2026-08-10 is free to play for its first 7 days. After that it moves to the Pro vault, and Pro opens it here or in the app.
The Eclipse Night at Cawdor Observatory — the Frost file
EASY · 15 cluesA priceless star map disappeared the night of the eclipse. Each astronomer worked through the dark in a different dome along the ridge. Walk the domes, one by one, and name the thief. The file names 4 astronomers; Wendell Frost's statement sits on top of the pile.
- 1. Wendell Frost was in the dome right before the astronomer tracking the lunar crater.
- 2. Pieter Aldous and the astronomer tracking the double star had exactly 1 dome between them.
- 3. Wendell Frost was in a lower-numbered dome than the astronomer tracking the lunar crater.
- 4. The astronomer using the prism box and the astronomer tracking the lunar crater are the same person.
- 5. Pieter Aldous was in a lower-numbered dome than the astronomer tracking the red planet.
- 6. The astronomer using the field glasses was in a lower-numbered dome than the astronomer using the prism box.
- 7. The astronomer using the field glasses was in the dome right before the astronomer using the celestial globe.
- 8. Soren Vaughn and the astronomer using the field glasses had exactly 1 dome between them.
- 9. The astronomer using the sextant and the astronomer tracking the new star are the same person.
- 10. Pieter Aldous and the astronomer using the sextant are the same person.
- 11. Wendell Frost was in the dome right before the astronomer using the prism box.
- 12. Soren Vaughn and the astronomer tracking the lunar crater are the same person.
- 13. The astronomer tracking the double star was in the dome right before the astronomer tracking the lunar crater.
- 14. Pieter Aldous was in the dome right before the astronomer tracking the red planet.
- 15. Ottoline Grey and the astronomer tracking the red planet are the same person.
Murder on the Coastal Line — the Webb file
MEDIUM · 13 cluesThe Coastal Line runs express after dark — no stops, no excuses. When it braked at dawn a compartment stood empty and nobody would say whose. Rebuild the carriage from the engine back. 5 passengers, 5 compartments, and no two accounts that quite agree — start with Jonah Webb.
- 1. Katya Brandt was in the compartment right before the passenger with the jewelry box.
- 2. Quinn Sutherland was somewhere after Leo Fontaine but before Jonah Webb.
- 3. The passenger with the medical bag was somewhere after the passenger with the typewriter case but before the passenger with the leather satchel.
- 4. The passenger with the leather satchel and the passenger headed to Crestfall are the same person.
- 5. The passenger headed to Dunmore was in the compartment right before the passenger headed to Harborview.
- 6. The passenger with the typewriter case was in the compartment right before the passenger headed to Dunmore.
- 7. The passenger with the typewriter case was right next to the passenger headed to Dunmore.
- 8. Quinn Sutherland was right next to the passenger with the medical bag.
- 9. The passenger with the jewelry box was in the compartment right before the passenger headed to Pinehurst.
- 10. Katya Brandt was right next to the passenger with the jewelry box.
- 11. Katya Brandt was in the compartment right before Quinn Sutherland.
- 12. Tilda Moreno and the passenger headed to Pinehurst are the same person.
- 13. Quinn Sutherland was in a lower-numbered compartment than the passenger with the medical bag.
The Midnight Bank at the Casino Verlaine — the Crane file
HARD · 16 cluesThe Verlaine does not lose — so when the books came up light, the house locked the doors. A row of private rooms, a floor of practiced faces, one forged chip. Unmask the forger, room by room. 5 players, 5 rooms, and no two accounts that quite agree — start with Dashiell Crane.
- 1. The hearts player was in the room right before the player drinking the vermouth.
- 2. Dashiell Crane and the mahjong player are the same person.
- 3. Jasper Quaid was right next to whoever stacked the cobalt chips.
- 4. Émile Tournier and the player drinking the brandy sour had exactly 1 room between them.
- 5. Whoever stacked the amber chips was in the room right before whoever stacked the pearl chips.
- 6. Ingrid Halvorsen was in a lower-numbered room than the player drinking the absinthe.
- 7. Émile Tournier was in a lower-numbered room than the dominoes player.
- 8. Jasper Quaid was right next to the player drinking the brandy sour.
- 9. The craps player was somewhere after the mahjong player but before the high-card player.
- 10. Ingrid Halvorsen was right next to whoever stacked the violet chips.
- 11. Whoever stacked the amber chips was in the room right before the player drinking the champagne.
- 12. Vivienne Laroche was right next to the player drinking the champagne.
- 13. Whoever stacked the pearl chips was in the room right before the player drinking the absinthe.
- 14. Whoever stacked the pearl chips was right next to the player drinking the absinthe.
- 15. The dominoes player and the player drinking the cognac had exactly 1 room between them.
- 16. The dominoes player was in a lower-numbered room than the craps player.
Every Verdict case has exactly one solution, provably reachable by deduction alone — no guessing required. Can you close all three?