A Ramadan night in the old city. A café full of football fans, a goal at 22:47, and an old watchmaker dead behind his bench. Two of his clocks stopped that night. Only one of them is telling the truth.
The Watchmaker of Qasr Sellam
The investigation
You are the consulting detective. On Thursday 12 March 2026, in the middle of Ramadan, Ammi Salah Bencheikh, the old watchmaker of Qasr Sellam, was killed in his workshop while the whole street was watching a football match. This is a short case: twelve documents, about forty minutes. Open them in any order. Two of them are puzzles the old man left behind: a letter that hides a second message, and two tracing cards that open his safe. The notebook keeps a timeline for you. When you know who, when and why, file your accusation.
12 documents4 suspects
Police reports
Official findings, timelines and first statements.
Witness statements
What people saw — or say they saw.
Phone records
Calls and messages, to the minute.
Financial records
Accounts, receipts and money that moved.
Crime scene photos
The scene as it was found. Look twice.
Maps
Who was where, and how long it took to get there.
Forensic reports
What the body and the evidence reveal.
Personal documents
Letters, diaries and notes never meant to be read.
Mehdi Bencheikh
36 · Nephew and apprentice
Kamel Ouali
54 · Watch dealer, Bordj El Bahr
Houria Zemmouri
47 · Sweet shop next door
Brahim Kaddour
63 · Café owner, across the street
What you’ll need to solve
When you are ready, you file your accusation. Each answer must be backed by the evidence — then the full solution is revealed.
Who did it?
Name the culprit.
Why?
Find the motive.
How?
Explain the method.
Case file #001
FAQ
The first case is free, no code needed. For the others, order on the site (BaridiMob or CCP): once the payment is checked, the case is added to your account and you play directly in your browser.
No. Everything is online, on phone or computer. You can still take notes on paper if you like.
Yes. Open an investigation room: your friends join with a code, each on their own phone, and only you need the case. Or gather around one screen.
In the Accuse tab, each question has a “Hint” button: it rules out one wrong answer (never the right one). Each hint costs 1 point from your final score. Before that, re-read the statements and fill in the notebook timeline: everything is in the file.
No. All cases, people and places are fictional.
22 documents · 3 suspects
The heart doctor who saved hundreds is found dead in his home office. A broken window, a stolen phone, a love note in the fridge — and a glass of apple juice that has not finished talking.
19 documents · 5 suspects
Hôtel du Mirage, Timimoun. A sandstorm. A locked room. And a phone call from a man who was already dead.
19 documents · 5 suspects
A night express stopped in a ravine. A sleeping car locked at both ends. Six passengers, one attendant, and a little dog that knew everyone.
