Tag Archives: holiday puzzle

The 2025 GCHQ Christmas Challenge Launches Tomorrow!

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One government agency in England celebrates Christmas a little bit differently than most.

The GCHQ — or Government Communications Headquarters — provides security and intelligence services for the British government. Back when they were known as GC&CS — Government Code and Cypher School — they were responsible for funding Bletchley Park and its successes cracking the German “Enigma” code during World War II.

And now, they provide one of the coolest and puzzliest challenges of the year, designed for solvers aged eleven to eighteen to test their skills, hoping to inspire the next generation of puzzle solvers.

Yes, it’s time once again for the GCHQ Christmas card.

GCHQ card
A look at 2021’s GCHQ Christmas Card.

We provided detailed breakdowns of their Christmas cards in 2016 and 2021, and if you’d like a sample of the GCHQ Christmas Challenge, they have an archive of puzzles from three previous years ready for you to solve!

The 2025 edition of the GCHQ Christmas Challenge launches tomorrow, Wednesday December 10th for the general public. (Schools were able to register for early access to the puzzles, complete with lesson-planning materials, which is very cool.)

Here’s what the GCHQ has to say about the event:

At GCHQ, we love creating puzzles and breaking codes. That’s why every year we create the GCHQ Christmas Challenge, a series of fiendish brainteasers and puzzles, designed by our very own team of codebreakers. It encourages children aged 11-18 to think laterally and work as a team, as well as showcasing some of the skills they might need to become a spy.

The puzzles are not designed to be solved alone, and each student will bring something different to the challenge. At GCHQ, we believe the right mix of minds enables us to solve seemingly impossible problems.

I’ve always been impressed with what festive puzzly efforts GCHQ brings each year, and I can’t wait to see what the 2025 edition has in store for solvers.

So, fellow puzzlers, do you accept this year’s Christmas Challenge? Let us know in the comments section below!

Ornamental Puzzling!

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Let’s do one last festive post before the new year begins!

Last week, a reddit user posted a picture of this Christmas ornament, and asked if the grid could actually be filled.

I happily accepted that challenge.

Now, there are a few caveats here. Obviously this is not a traditional crossword grid. It has no symmetry (either radial or axial), and it is littered with one- and two-letter entries, which are not allowed. There is also the small matter of the bottom left corner being completely disconnected from the rest of the grid.

Here is the empty grid with MERRY and CHRISTMAS preset (without the pencil blocking several squares):

Now, to stick to the reddit request, I left the grid mostly as is.

However, I could not in good conscience have part of the grid disconnected from the rest, so I removed a single black square in order to connect the grid fully.

There we go.

Oh. And one additional challenge: I only allotted myself ten minutes to fill the grid.

As usual in crossword construction, I tried to avoid abbreviations and variant spellings as much as possible (even with the two-letter entries), and keep the vocabulary as accessible as possible.

The only real challenge in this grid was finding a seven-letter word starting with R that aligned nicely with CHRISTMAS as the neighboring word.

In keeping with the holiday theme, I chose RAISINS, as the California Raisins and their long-lost classic Christmas special came to mind.

From that point, it was a pretty quick job filling in the rest of the grid.

There are more plurals than I’d prefer, and DYNAST is by far the most difficult entry in terms of vocabulary, but otherwise, I’m pleased with my nine minutes and thirteen seconds’ worth of work.

What do you think?

I might come back to this one and see if I could clean it up more. Eliminate all the plurals, or maybe put themed words for all the border words along the edge. Something to really challenge me.

But for now, I think this will do.

Please check out the reddit post to see other puzzlers’ attempts at filling this ornament’s unusual layout. Or maybe even accept the challenge yourself! If you do, I’d love to see your fill.

Happy puzzling, everyone! And Happy New Year!

Answers to our Reworded Holiday Songs Puzzle!

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village-carolers
Image courtesy of The Sun Papers.

A week ago, I shared a holiday puzzle rewording 31 different Christmas songs and carols. And now it’s time to reveal the answers!

1.) Move hitherward the entire assembly of those who are loyal in their belief.

Oh Come All Ye Faithful

2.) Listen, the celestial messengers produce harmonious sounds.

Hark, the Herald Angels Sing

3.) Proceed forth declaring upon a specific geological alpine formation.

Go Tell It on the Mountain

4.) Nocturnal timespan of unbroken quietness.

Silent Night

5.) Embellish the interior passageways.

Deck the Halls

6.) An emotion excited by the acquisition or expectation of good given to the terrestrial sphere.

Joy to the World

7.) Twelve o’clock on a clement night witnessed its arrival.

It Came Upon a Midnight Clear

8.) The Christmas preceding all others.

The First Noel

9.) Small municipality in Judea southeast of Jerusalem.

Oh Little Town of Bethlehem

10.) In a distant location the existence of an improvised unit of newborn children’s slumber furnishings.

Away in a Manger

11.) Tintinnabulation of vacillating pendulums in inverted, metallic, resonant cups.

Jingle Bells

12.) The first person nominative plural of a triumvirate of far eastern heads of state.

We Three Kings (of Orient Are)

13.) Geographic state of fantasy during the season of Mother Nature’s dormancy.

Winter Wonderland

14.) In awe of the nocturnal timespan characterized by religiosity.

Oh Holy Night

15.) Natal celebration devoid of color, rather albino, as an hallucinatory phenomenon for me.

I’m Dreaming of a White Christmas

16.) Expectation of arrival to populated areas by mythical, masculine perennial gift-giver.

Here Comes Santa Claus

17.) Obese personification fabricated of compressed mounds of frozen minute crystals.

Frosty the Snowman

18.) Tranquility upon the terrestrial sphere.

Peace on Earth

19.) Omnipotent supreme being who elicits respite to ecstatic distinguished males.

God Rest Ye Merry Gentlemen

20.) Diminutive masculine master of skin-covered percussionistic cylinders.

Little Drummer Boy

21.) Jovial Yuletide desired for the second person singular or plural by us.

Have Yourself a Merry Little Christmas OR We Wish You a Merry Christmas

22.) Allow winter precipitation in the form of atmospheric water vapor in crystalline form to descend.

Let It Snow, Let It Snow, Let It Snow

23.) A first-person observer witnessed a female progenitor engaging in osculation with a hirsute nocturnal intruder.

I Saw Mommy Kissing Santa Claus

24.) Your continued presence remains the sole Yuletide request of the speaker in question.

All I Want For Christmas Is You OR You’re All I Want for Christmas

25.) Permanent domicile during multiple specific celebratory periods.

(There’s No Place Like) Home for the Holidays

26.) Diminutive person regarded as holy or virtuous known by the informal moniker shared by two former Russian tsars.

Little St. Nick

27.) More than a passing resemblance to an annual winter festival is emerging.

It’s Beginning to Look a Lot Like Christmas

28.) Are you registering the same auditory phenomenon I am currently experiencing?

Do You Hear What I Hear?

29.) Overhead at the summit of the suburban residence.

Up on the House Top

30.) Attractive or otherwise visually pleasing wood pulp product.

Pretty Paper

31.) Parasitic European shrub accompanied by a plant with prickly green leaves and baccate qualities.

Mistletoe and Holly OR The Holly and the Ivy

How did you do? Did you get them all, or did one or two stump you? Let me know!

Here We Come A-Wassailing, With Some Reworded Carols!

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village-carolers
Image courtesy of The Sun Papers.

A few years ago, I posted a holiday puzzle that had been floating around the Internet for years. It was a list of Christmas songs and carols whose titles had been reworded, and it was up to the reader to identify the actual titles.

It was a popular post, but something about the list always bothered me. There were 21 reworded titles, which didn’t strike me as very Christmassy at all. I mean, why not 12? Or 24? Or, heck, 25?

So, I did something about it.

I added 10 new reworded titles to the list, bringing the total to 31, one for every day in December. Let’s see how many of you can crack all 31 titles, shall we? Enjoy!

1.) Move hitherward the entire assembly of those who are loyal in their belief.

2.) Listen, the celestial messengers produce harmonious sounds.

3.) Proceed forth declaring upon a specific geological alpine formation.

4.) Nocturnal timespan of unbroken quietness.

5.) Embellish the interior passageways.

6.) An emotion excited by the acquisition or expectation of good given to the terrestial sphere.

7.) Twelve o’clock on a clement night witnessed its arrival.

8.) The Christmas preceding all others.

9.) Small municipality in Judea southeast of Jerusalem.

10.) In a distant location the existence of an improvised unit of newborn children’s slumber furnishings.

11.) Tintinnabulation of vacillating pendulums in inverted, metallic, resonant cups.

12.) The first person nominative plural of a triumvirate of far eastern heads of state.

13.) Geographic state of fantasy during the season of Mother Nature’s dormancy.

14.) In awe of the nocturnal timespan characterized by religiosity.

15.) Natal celebration devoid of color, rather albino, as an hallucinatory phenomenon for me.

16.) Expectation of arrival to populated areas by mythical, masculine perennial gift-giver.

17.) Obese personification fabricated of compressed mounds of frozen minute crystals.

18.) Tranquility upon the terrestial sphere.

19.) Omnipotent supreme being who elicits respite to ecstatic distinguished males.

20.) Diminutive masculine master of skin-covered percussionistic cylinders.

21.) Jovial Yuletide desired for the second person singular or plural by us.

22.) Allow winter precipitation in the form of atmospheric water vapor in crystalline form to descend.

23.) A first-person observer witnessed a female progenitor engaging in osculation with a hirsute nocturnal intruder.

24.) Your continued presence remains the sole Yuletide request of the speaker in question.

25.) Permanent domicile during multiple specific celebratory periods.

26.) Diminutive person regarded as holy or virtuous known by the informal moniker shared by two former Russian tsars.

27.) More than a passing resemblance to an annual winter festival is emerging.

28.) Are you registering the same auditory phenomenon I am currently experiencing?

29.) Overhead at the summit of the suburban residence.

30.) Attractive or otherwise visually pleasing wood pulp product.

31.) Parasitic European shrub accompanied by a plant with prickly green leaves and baccate qualities.

How many did you unravel, fellow puzzlers? Let us know in the comments section below! We’d love to hear from you!

Tackling the GCHQ 2021 Christmas Card!

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GCHQ card

Every year, one of the puzzliest challenges many solvers will encounter all year descends upon the world, as the GCHQ issue their Christmas card.

The GCHQ — or Government Communications Headquarters — provides security and intelligence services for the British government. Back when they were known as GC&CS — Government Code and Cypher School — they were responsible for funding Bletchley Park and its successes cracking the German “Enigma” code during World War II.

This year’s Christmas card was directed toward solvers with a secondary school education (essentially solvers age 11 and up), and was less complicated than offerings in previous years, but still offered an engaging challenge.

Here’s the link in case you’d like to try it for yourself.

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*

Last chance before we walk through the solution!

***

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*

Okay, ready? Good! Let’s do this!

GCHQ card 1a

Clue number one is an easy one, as you simply read the first letter of each word in the message. Your solution is CHRISTMAS.

Clue number two is a simple 4×4 across-and-down grid where 1-Across and 1-Down are the same word, 2-Across and 2-Down are the same word, and so on. The completed grid reads:

T H I S
H O O T
I O W A
S T A G

And the letters in THIS are highlighted in the grid, so the solution is THIS.

GCHQ card 1b

Clue number three is a complete-the-sequence puzzle where the names of the Hogwarts houses from Harry Potter are listed, but each house in the sequence has more letters missing from the beginning and end of the word. Slytherin is the missing house, and with three letters missing from the beginning and end of the word, your solution is THE.

Clue number four is a Blackout! or Minesweeper-style puzzle where you deduce the location of bombs in the grid according to numbers in the neighboring squares. Once you’re marked off each of the bombs, the remaining spaces form letters and spell out a word. Your solution is SAFE.

GCHQ card 1c

Clue number five is a mnemonic device, and solvers must puzzle out what chain of related words is represented by the device. In this case, the major taxonomic ranks that are used to organize related living things are represented, and the word Kindly points toward the second word in the taxonomic ranks, so your solution is Kingdom.

Clue number six has three overlapping circles, each with letters inside, and you have to figure out not only what the words are, but what missing six-letter word would sit in the middle of this Venn diagram.

I found this to be the hardest puzzle in the card by far, as I tried and failed in numerous attempts to anagram the letters into recognizable words. Finally, I decoded the shortest word — LEEDS — only because I remembered that this is a British organization and I have friends who live in Leeds.

Leeds led me to unraveling the other two answers — MANCHESTER and NEWCASTLE — and my meager knowledge of European football provided the missing six-letter word. The solution is UNITED.

GCHQ card 1d

Clue number seven is a simple cryptogram, and is quickly decoded to read “This is the 7th question: people born between nineteen forty-six and nineteen sixty-four are commonly known as baby what?”

The solution appears to be BOOMERS, but there is an additional instruction to follow after decoding the message, and you must encode the answer. Following the same letter-substitution rule, BOOMERS becomes KEEPING, and that is your solution.

GCHQ card 2

Now each word must be placed in order on the tree for your message to properly read out.

  • The word BABY in clue 7 points toward the stroller icon, so our message begins with KEEPING.
  • The lightning bolt icon refers to Harry Potter, so the word THE from clue 3 goes next.
  • The soccer ball icon points to clue 6, so the word UNITED continues the message.
  • The word KINGDOM from clue 5 aligns with the crown icon, so that’s our fourth word.
  • The lock icon is most closely associated with SAFE from clue 4, so that’s next.
  • At first, I thought the image of the Stag was a Harry Potter reference, but I then realized that STAG was one of the answers in clue 2’s grid, so this was the place for THIS.
  • Finally, the present is the perfect spot for clue 1’s solution, CHRISTMAS.

And the message is revealed, celebrating the mission of the GCHQ itself: Keeping the United Kingdom Safe This Christmas.

Did you unravel this festive puzzly challenge, fellow PuzzleNationers? Let us know in the comments section below! We’d love to hear from you.

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Solution to Last Week’s Merry Birthday Puzzle!

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A week ago, we shared a brain teaser sent in by a PuzzleNationer named Darrin (who credited Marilynn Rapp Buxton as the creator of the puzzle). Darrin challenged us to solve the following logic puzzle.

Today, we’re going to share not only the solution, but how we got there! Please enjoy this brief solve and tutorial, submitted by one of your fellow PuzzleNationers!

Four friends — two girls named Holly and Joy, two boys named Kris and Noel — all celebrate their birthdays during December. Though none was born on Christmas Day — each was born on a different day — they all have festive names. Can you figure out each person’s last name and order of birth?

1. Nobody’s first name goes with the traditional last name (Berry, Fully, Kringle, or Singer) that you might expect.
2. Someone’s birthday is three days after their friend Joy’s birthdate.
3. Holly’s birthday is three days before Noel’s and three days after Kris’.
4. Miss Fully’s birthdate is six days after Joy’s.
5. Noel’s birthdate is six days after the one whose last name is Berry.

christmas elves

[Image courtesy of Moji-Moji Design on ravelry.]

Let’s sort out the order of birth first.

We know from rule 3 that Holly’s birthdate is three days before Noel’s and three days after Kris’s. So their birthdate order is Kris, Holly, Noel.

But we also know from rule 2 that someone’s birthday is three days after Joy’s. Since they all have different birthdays, that means Joy’s birthday comes first in the order, giving us Joy, Kris, Holly, Noel.

Rule 4 tells us that Miss Fully’s birthdate is six days after Joy’s, so Holly’s last name is Fully.

Rule 5 states that Noel’s birthday is six days after the one whose last name is Berry, so Kris’s last name is Berry.

That gives us Joy ____, Kris Berry, Holly Fully, Noel ____.

Rule 1 tells us all four last names — Berry, Fully, Kringle, and Singer — and that nobody’s first name goes with the traditional last name that you might expect. Logically, those names would be Holly Berry, Joy Fully, Kris Kringle, and Noel Singer.

Since Kringle and Singer are the two remaining last names, and Singer can’t go with Noel, our final list reads Joy Singer, Kris Berry, Holly Fully, Noel Kringle.

How did you do, fellow PuzzleNationers? Did you solve this one? Let us know in the comments section below! We’d love to hear from you.

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