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4 October 2026 / CASE FILE 100Easy

The cut ribbon

The unauthorised decoration and a forgotten offcut were once a single ribbon. Their lengths point to someone.

3 min100 points

The festival’s principal costume appears with a gold ribbon that nobody was supposed to cut. It was a sample reserved for the exhibition, but someone turned it into a decoration during rehearsal.

Three people each received a gold ribbon. The offcut is left on the table. The records preserve the original length of each allocation; one sum can solve the mystery before the curtain rises.

What we know for certain

One of these people cut their own ribbon once and attached the decoration. The recovered offcut is everything left over. No ribbons were joined, materials stretched or allocations exchanged. The measurements are exact and given in centimetres.

L

Lía Domènech

Dressmaker
A
«My ribbon had enough spare length for lots of decorations.»
M

Marc Sol

Dancer
B
«The one I received was two metres long.»
N

Nadia Valls

Wardrobe assistant
C
«I had the shortest ribbon.»

Opening these five clues does not cost points.

01The costume’s ribbon

The decoration measures 125 centimetres from end to end. It has no joins, hidden folds or overlapping sections.

02The forgotten offcut

The only remaining offcut measures 75 centimetres. Its cut edge matches the decoration’s.

03The morning allocations

Lía received 240 centimetres; Marc 200; Nadia 180. All three lengths appear on the signed allocation record.

04A single cut

The recording of the worktop shows one straight cut, although it does not identify the hands. No fragment fell to the floor.

05The final check

Nobody returned, lent or received another ribbon during rehearsal. The decoration and the offcut retain their original width.

BEFORE OPENING THE ENVELOPE

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