9:00 am
Croissantgate
There was one croissant left. Now there isn't. Who did it?
Croissantgate is a deduction game: each morning, you read your colleagues' Post-its, place everyone on the floor plan and name who ate the last croissant. Two minutes, the same puzzle for everyone.
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iOS 17 or later · French and English · your progress stays on your iPhone
9:01 am
Your turn
A real little case, right now
Same rules and same moves as the app, on a pocket-sized plan: tap a portrait, their Post-its light up and the plan greys out what they rule out. Put everyone on a clear square, then accuse.
Tap a portrait to see their Post-its.
In this morning
The Post-its
“Next to” covers the 8 surrounding squares, diagonals included.
floor
chair
rug
desk
pot plant
cupboard
Golden rule: the culprit is the only colleague alone in the same room as the box.
The length of a coffee
One case, minute by minute
What happens between opening the app and the email from Management. These are real screenshots of the app.
0:00
Today's office memo
The lobby shows the puzzle number, its difficulty and who's in this morning: 4 colleagues on a 5×5 plan, 5 on a 6×6 plan, and always the croissant box. The same memo for the whole floor.
0:20
Tap a portrait, the plan helps you read
Their Post-its light up and scroll into view, and the plan greys out the squares they rule out. Tap a Post-it: it outlines its zone on the plan. It reads the Post-its one at a time, it doesn't solve anything for you. You can turn the grey off in the settings.
You can stand here- floor
- chair
- rug
Blocked- desk
- pot plant
- cupboard
1:10
Stuck? The coffee machine, in three steps
The “Hint” button opens in stages, and you stop whenever you like. Each stage counts as one hint in your result, and your streak still holds.
- Nudge : the Post-it, row or person to look at
- Explain it : the deduction, and the squares it rules out
- Show me the answer : one person's real spot, placed on the plan
1:52
Everyone is placed: accuse
“Accuse someone” only appears at that point. Your plan is checked at the same time. Management closes the case by email, and you can forward your result as text or as an image, without ever naming the culprit.
The result, for example
Memo no. 1
Four rules, not one more
- Each colleague has a row and a column all to themselves. So does the croissant box.
- You stand on the floor, a chair or a rug. Never on a desk, a pot plant or a cupboard.
- The Post-its say where everyone was, in the same words as the legend. “Next to” covers the 8 surrounding squares.
- Golden rule: the culprit is the only colleague alone in the same room as the box.
The staff board
Twelve suspects, zero alibis
Each morning, a few of them are in. All made up, no real colleague targeted.
Kevinaccounts, king of Excel
SandrineHR, keeper of the holiday planner
Théointern, week three
Gérardwith the company since 1998
NadiaIT, “have you tried restarting?”
Brigittereception, knows everything about everyone
Maximesales, always on the phone
Jean-Micoffee machine officer
Chloémarketing, speaks in LinkedIn posts
Patrickthe boss, always in a meeting
Yannickagile lead, Post-its everywhere
Fabiennelegal, reads the fine print
Ten rooms to search
- Open plan
- Kitchen
- Meeting room
- Boss's office
- Reception
- Phone booth
- Copy room
- Lounge
- Archives
- Server room
The rest of the day
The case is closed. The stack of mugs keeps growing.
Every puzzle closed on the day adds a mug to your streak. The day is checked against a signed time: moving your iPhone's clock forward gets you nowhere.
Whenever you like
A reminder, if you ask for one
“The last croissant has vanished. Investigate?” At the time you choose. Nothing is asked until you touch the setting.
All day
The stack on your Home Screen
A streak widget, small, medium and on the Lock Screen. It opens today's puzzle.
On your break
The archives
Past puzzles, back to #1 on November 1, 2026, to catch up on in the calendar. They don't count towards your streak.
In a meeting
Your numbers on the whiteboard
Streak, record, share of cases with no hints, times over 30 days and time distribution. Nothing leaves this room.
A typical week
- Mon5×5easy
- Tue6×6easy
- Wed5×5medium
- Thu6×6easy
- Fri6×6medium
- Sat6×6medium
- Sun5×5easy
Gentler on Sunday and Monday, tougher on Friday and Saturday. The next one comes out at midnight, Paris time.
371 checked puzzles, each with exactly one solution. They all ship inside the app: you can play offline, and your streak waits for the signal to come back.
Also
- A “stack in danger” alert late in the day, only if you turn it on and your streak is at stake
- Office sounds and haptics, each with its own setting
- Game Center achievements, no leaderboards
- Two Siri shortcuts: “Today's puzzle” and “My streak”
And on the web?
A no-account web page is planned, to play today's puzzle from a link. It isn't online yet.
After 7 pm
The culprit is still at large.
See you tomorrow, at coffee time.
The app goes dark along with your iPhone: that's “the office after 7 pm”.
Coming soon to the App Store