# A holiday game among friends

My name is Rozemarijn. I invited my friends Eleni, James, Helmut, Chiara and Pierre to participate in a fun game since we are all on Christmas holidays.

For the set up, I asked each one of them to write a message on a piece of paper, then fold it and place it in a jar. The message is composed of a couple of letters and I explained to them how to derive them. We all followed the instructions, including myself. Then I unfolded the pieces of paper to check if everybody followed my instructions correctly.

These were the 6 messages:

• FW
• ZT
• PK
• KX
• JN
• MC

One of the messages looked a bit weird. After a quick online search, I confirmed that one of my friends did not follow my instructions correctly. What should (s)he have written?

These are all

Abbreviations for how to say "Merry Christmas" around the world...

They are

FW - Fröhliche Weihnachten (German) ZT - Not sure? PK - Prettige Kerst (Dutch) KX - Καλά Χριστούγεννα (Greek) JN - Joyeux Noël (French) MC - Merry Christmas (English)

So, if we assume that everyone's name is based on a country of origin, then...

Chiara (Italian) should have used "BN" - “Buon Natale”

• Specifically, rot13(HF Ratyvfu, fvapr n Oevg jbhyq or zber yvxryl gb fnl "Unccl Puevfgznf" be "UP") Dec 6 '21 at 21:07