The cases for 2026-08-16
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 2026-08-16 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 Late Shift at Halloran & Co. — the Mwangi file
EASY · 14 cluesSecurity says nobody left between the last badge-in and midnight. The ledger says a small fortune did. Pin every employee to a desk before the auditor takes the elevator up. Statements were taken from all 4 employees; Abel Mwangi's is the first page.
- 1. Priya Nair was in a lower-numbered desk than Umar Haddad.
- 2. The employee with the energy drink was right next to the employee from IT.
- 3. Abel Mwangi was in a lower-numbered desk than the employee from marketing.
- 4. The employee with the matcha latte was somewhere after the employee with the green tea but before the employee with the energy drink.
- 5. Abel Mwangi and the employee with the matcha latte are the same person.
- 6. The employee with the matcha latte was in the desk right before the employee from marketing.
- 7. Priya Nair and the employee from accounting are the same person.
- 8. The employee with the green tea was right next to the employee from facilities.
- 9. Priya Nair was in the desk right before the employee from IT.
- 10. The employee with the cold brew was right next to the employee from accounting.
- 11. The employee with the green tea was in the desk right before the employee from IT.
- 12. Abel Mwangi was in a lower-numbered desk than Umar Haddad.
- 13. The employee with the energy drink and the employee from facilities had exactly 2 desks between them.
- 14. The employee with the cold brew was in the desk right before the employee from accounting.
The Midnight Bank at the Casino Verlaine — the Ostrovsky file
MEDIUM · 10 cluesA fake high-value chip worth a fortune slipped through the cashier's cage just before the house closed the books. Every suspect sat in a different private gaming room set out in a single long row. Trace the row and unmask the forger. 5 players, 5 rooms, and no two accounts that quite agree — start with Lev Ostrovsky.
- 1. Cordelia Frost was in the room right before whoever stacked the ivory chips.
- 2. Vivienne Laroche and whoever stacked the amber chips are the same person.
- 3. Vivienne Laroche and the dominoes player are the same person.
- 4. Whoever stacked the silver chips was in the room right before whoever stacked the rose-gold chips.
- 5. Whoever stacked the pearl chips was in a lower-numbered room than whoever stacked the silver chips.
- 6. The gin rummy player was right next to whoever stacked the silver chips.
- 7. Bianca Reymond was somewhere after Salvatore Greco but before Lev Ostrovsky.
- 8. Cordelia Frost and the solitaire player had exactly 2 rooms between them.
- 9. Bianca Reymond and the mahjong player are the same person.
- 10. The dominoes player was in the room right before whoever stacked the pearl chips.
The Cloister Scandal at Wexford College — the Albright file
HARD · 15 cluesBy the time the chapel bells rang, every story matched: locked library, missing volume, a corridor of scholars who saw nothing. The rooms know better. Place every professor before the college calls its hearing. Statements were taken from all 5 professors; Dr. Albright's is the first page.
- 1. The professor who claimed to be at the porter's lodge was in the room right before whoever the porter saw at half past eight.
- 2. The professor reading the treatise on optics and whoever the porter saw at half past eight had exactly 2 rooms between them.
- 3. The professor reading the star chart was in the room right before whoever the porter saw at eleven o'clock.
- 4. The professor reading the botanical atlas was right next to the professor who claimed to be at the pantry.
- 5. Dr. Albright was in a lower-numbered room than the professor reading the Greek primer.
- 6. The professor reading the star chart was right next to the professor who claimed to be at the porter's lodge.
- 7. The professor reading the botanical atlas and whoever the porter saw at eleven o'clock are the same person.
- 8. The professor reading the treatise on optics and whoever the porter saw at quarter to one are the same person.
- 9. Tutor Penhallow was right next to the professor who claimed to be at the rose garden.
- 10. Provost Crewe was right next to the professor who claimed to be at the pantry.
- 11. Tutor Penhallow and the professor who claimed to be at the dining hall are the same person.
- 12. The professor reading the star chart was in a lower-numbered room than the professor who claimed to be at the pantry.
- 13. Magister Finch was somewhere after Chaplain Sykes but before Provost Crewe.
- 14. Dr. Albright was in the room right before the professor who claimed to be at the archives.
- 15. Chaplain Sykes and whoever the porter saw at ten o'clock had exactly 3 rooms between them.
Every Verdict case has exactly one solution, provably reachable by deduction alone — no guessing required. Can you close all three?