menu

Nederlands

Puzzles

On this page you can find puzzles, which you can solve to get early hints of our announcements. For the older puzzles, solved versions are also attached, together with a high score of the people who were the first to solve the puzzle!

Do you wish to notified when we publish a new puzzle? Subscribe to our mailing list, and we will send you an email whenever we have a new hint for you to solve!

High scores

Festival theme

correct answer submitted by 7 people

  1. Piet van Steen
  2. Cathalijn Leenaars
  3. Pieter-Jan Hoornaert

Scavenger hunt

correct answer submitted by 3 people

  1. Suzanne Luijten
  2. Rob van Heijst
  3. Marte Kaagman

Minesweeper

correct answer submitted by 9 people

  1. Piet & Hanna
  2. Casper Klop
  3. Karel Schuller

Half a year

correct answer submitted by 5 people

  1. Rob van Heijst
  2. Leon Schoorl
  3. Jermaine Ramlakhan

Christmas & new year's puzzle

During the second half of December and the first half of January, the AIVD (general intelligence and security service of the Netherlands) has their christmas puzzle published (only Dutch). As a tribute to this great challenge, you can now find our own logical puzzle below.

If you have found the solution, send an email to containing the solution and your name, and you might get into the high scores at the top of this page!

The puzzle: The solution should be a 6 letter word. Both the solution and the words in the puzzle are Dutch words, but their meaning is not important.

achtzame
bling
dikbil
gouduil
haast
maan
mafkat
pils
prikgil
pruiler
tomaat
zaak
Having trouble finding the answer? Use the following hints (starting with hint 1) to get going!

Half a year to go!

Today, the 26th of November 2021, the NJF will take place exactly half a year from now! Of course this has to be celebrated with a puzzle.

If you have found the answer to the puzzel, send an email to containing the solution and your name, and you might get into the high scores at the top of this page!

The puzzle: Each series of numbers in the left column can be transformed into one number. Match each of these resulting numbers to one element in the right column, and find out what the question mark should be.

2 4 3 2 5 2 97 1 2711 1
2 4 3 2 5 3 73 1 199 1
2 4 3 4 5 2 59 1 653 1
2 5 3 2 5 2 83 1 2767 1
2 5 3 2 5 2 89381 1
EJC 1
Milleniumbug
NJF 1
World record 3
?
Having trouble finding the answer? Use the following hints (starting with hint 1) to get going!

💣 Minesweeper 💣

The correct answer to this puzzle was correctly submitted by 6 people, congratulations! The answer is: all 57 places in the Netherlands with "wijk" in their name! Want to know what this is all about? Finish the minesweeper below and see for yourself!

Click left to open a tile, click right to flag.

Flags left:

Circus scavenger hunt

On the occasion of the circusstad festival in May 2021, Rob van Heijst has developed an online scavenger hunt! Since the theme of next year's NJF is "puzzles", we are happy to feature this scavenger hunt as well! All text is in Dutch, but since the hunt is video based, it should be doable for non-Dutch speakers. :)

To get into the high scores at the top of this page, we asked you to send in the password of the final level. The answer to this was "jongleur", which was correctly answered by 3 people!

Click here to go
to the scavenger hunt

Festival theme

On the 1st of August, it was announced that this year's the festival theme will be "puzzles"! A week earlier we published the two nonograms below, the solutions of which being hints to this theme.

Festival logo

difficulty:
puzzle as pdf
puzzle as svg
puzzle as jpg
puzzle solution

introduction to nonograms

Easy hint

difficulty:
puzzle as pdf
puzzle as svg
puzzle as jpg
puzzle solution

introduction to nonograms

Christmas & new year's puzzle

During the second half of December and the first half of January, the AIVD (general intelligence and security service of the Netherlands) has their christmas puzzle published (only Dutch). As a tribute to this great challenge, you can now find our own logical puzzle below.

If you have found the solution, send an email to containing the solution and your name, and you might get into the high scores at the top of this page!

The puzzle: The solution should be a 6 letter word. Both the solution and the words in the puzzle are Dutch words, but their meaning is not important.

achtzame
bling
dikbil
gouduil
haast
maan
mafkat
pils
prikgil
pruiler
tomaat
zaak
Having trouble finding the answer? Use the following hints (starting with hint 1) to get going!

Half a year to go!

Today, the 26th of November 2021, the NJF will take place exactly half a year from now! Of course this has to be celebrated with a puzzle.

If you have found the answer to the puzzel, send an email to containing the solution and your name, and you might get into the high scores at the top of this page!

The puzzle: Each series of numbers in the left column can be transformed into one number. Match each of these resulting numbers to one element in the right column, and find out what the question mark should be.

2 4 3 2 5 2 97 1 2711 1
2 4 3 2 5 3 73 1 199 1
2 4 3 4 5 2 59 1 653 1
2 5 3 2 5 2 83 1 2767 1
2 5 3 2 5 2 89381 1
EJC 1
Milleniumbug
NJF 1
World record 3
?
Having trouble finding the answer? Use the following hints (starting with hint 1) to get going!

💣 Minesweeper 💣

Unfortunately this game can only be played on a larger screen, using a mouse with a left and right button.

Circus scavenger hunt

On the occasion of the circusstad festival in May 2021, Rob van Heijst has developed an online scavenger hunt! Since the theme of next year's NJF is "puzzles", we are happy to feature this scavenger hunt as well! All text is in Dutch, but since the hunt is video based, it should be doable for non-Dutch speakers. :)

To get into the high scores at the top of this page, we asked you to send in the password of the final level. The answer to this was "jongleur", which was correctly answered by 3 people!

Click here to go to the scavenger hunt


Festival theme

On the 1st of August, it was announced that this year's the festival theme will be "puzzles"! A week earlier we published the two nonograms below, the solutions of which being hints to this theme.

difficulty:
puzzle as pdf, svg, jpg
puzzle solution
introduction to nonograms
difficulty:
puzzle as pdf, svg, jpg
puzzle solution
introduction to nonograms