Tag Archives: genius

The Guardian Cryptic Crossword Treasure Hunt… Revealed!

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cryptic

Cryptic crosswords have been getting a lot of attention this year.

Josh Wardle launched his Parseword daily puzzle, Barry Joseph has taken us on a fascinating journey into Stephen Sondheim’s love of puzzles and games (review coming soon!), and The Observer celebrated one hundred years of cryptic crossword puzzles back in March.

And just last week, The Guardian pulled back the curtain on a multi-year surprise for solvers that celebrated not only a milestone in longevity, but in creativity as well.

On May 6th, The Guardian published their 30,000th cryptic puzzle, which was set by one of the most celebrated voices in cryptic puzzles, Arachne. Crossword editor Alan Connor called the cryptic puzzle “a perfect little enigma.”

Now, that would have been milestone enough, but as it turns out, the setters of The Guardian had something much more elaborate in store for their loyal solvers: a treasure hunt spanning MANY cryptics.

They’d started two years beforehand.

Back in 2024, they began brainstorming something special for Cryptic #30,000.

A few months later, a series of entries began appearing in the bottom row of particular cryptics. Entries like WELL DONE, BRAVO, and HERE were intended to draw the eye of attentive puzzle fans. (This would prove helpful later for people searching back through the puzzle archives, once they’d learned about the treasure hunt.)

But the creative team were careful going forward, utilizing only chunks of words (ISOURF, INALCH, ALLENG) and not full entries. I can imagine the confusion for those keen-eyed solvers who were already on the trail when the pattern suddenly changed.

This continued throughout 2025 with solvers none the wiser.

The treasure hunt began in earnest when cryptic #30,000 was published.

In cryptic #30,000, Arachne included the phrases PERIMETER TODAY and QUICK CROSSWORD reading out in the grid. (The Quick Crossword accompanies the daily cryptic in The Guardian.) Solvers who then completed the Quick Crossword would then find the following message reading out clockwise on the perimeter of the grid:

LEADER I TAILORED BADLY

A cryptic clue was hidden in the perimeter letters!

This cryptic clue can be parsed with “Leader” as the definition, and “badly” indicating that “I tailored” needs to be rearranged. “I tailored” anagrams into EDITORIAL, pointing to the piece Alan Connor wrote that day in celebration of the 30,000th cryptic.

Arachne had also included the word ACROSTIC in Cryptic #30,000 as a subliminal hint to solvers for where to look in the editorial that day.

And if you read the first letter of each paragraph in Connor’s editorial, you get the message LAST THIRTY-FIVE PRIMES.

No, wait, wrong Prime…

Diabolical work. That was the pattern to follow in order to uncover which puzzles were part of their long-running secret message, indicating the actual cryptic puzzle numbers to search through, starting with #29581 and ending with #29989.

So what was the message? What was the final result of a year and a half of seeding and sneaking and devious wordplay?

29581 WELLDONE
29587 BRAVO
29599 HERE
29611 INCONCLUSION
29629 ISOURF
29633 INALCH
29641 ALLENG
29663 EAREYOU
29669 KEEPINGUPGREAT
29671 THEREWI
29683 LLBEAWON
29717 DERF
29723 ULPRIZ
29741 EBUTFIR
29753 STYOUM
29759 USTENT
29761 ERARAC
29789 ENOTAN
29803 ACTUALATHLETIC
29819 RACEOFC
29833 OURSETH
29837 ATWOULD
29851 BEWEIRD
29863 NOTTHAT
29867 ITSACER
29873 EBRALRA
29879 CEINTHE
29881 FORMOFA
29917 CROSSWORDPUZZLE
29921 ITSAGEN
29927 IUSPUBL
29947 ISHEDAT
29959 NOONBST
29983 TOMORROW
29989 GODSPEED

Well done, bravo, here in conclusion is our final challenge. Are you keeping up? Great, there will be a wonderful prize but first you must enter a race. Not an actual athletic race of course, that would be weird. Not that. It’s a cerebral race in the form of a crossword puzzle. It’s a Genius published at noon BST tomorrow. Godspeed!

Naturally, when the hour arrived, a Genius crossword appeared, set by the one and only Enigmatist, another beloved name in the field of cryptics.

Duncan over at Fifteen Squared did an amazing breakdown of not just the treasure hunt but the puzzle that awaited solvers at the end, and it is a mind-bending bit of puzzling.

To start, there were no answer length at the end of each clue, which is definitely a break with tradition when it comes to cryptic crosswords. And that’s for a good reason.

Solvers had to add a letter to many of the answers in order to form the words RECKON, DEDUCE, REASON, and IDEATE beyond the boundaries of the grid.

Yes, they had to think outside the box.

Many of the answers referred to luminaries in their various fields (EINSTEIN, ESCHER, LEONARDO, MANDELA, WATSON, CERVANTES, etc.), making the Genius crossword rather literal.

The first letter of every clue ALSO had something to hide. When you removed the names of two more geniuses reading out acrostic-style, BEETHOVEN and ARAUCARIA (yet another beloved cryptic setter), you get the message IT IS WHAT GENIUSES DO.

Which ties back to thinking outside the box.

Wow. What a puzzle.

So, did the puzzle live up to the hype after ALL of this amazing build-up?

I’ll give the last word to Redditor colinbeveridge, who shared this heartfelt response to the entire endeavor:

I’ve finally followed the rabbit-hole all the way to the bottom and… wow. Just blown away by the whole thing, to the point of tears at the final mic-drop.

It’s as if a dedicated team of clever people co-ordinated in secret for a year and a half to deliver something that felt like it was designed just for me (and possibly you, if you’re here). Gorgeous, beautiful work.

WELL DONE and BRAVO, Guardian editors and setters and contributors. What an amazing gift to offer your solvers.

Good luck topping this one when you get to the next 30,000 puzzle goal line!

Are you a cryptic solver, fellow puzzler? Would you have been unable to unravel The Guardian’s crafty clues and hidden hints? Let me know in the comments section below! I’d love to hear from you.

Celebrating the Puzzly Legacy of John Horton Conway

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The worlds of puzzles and mathematics overlap more than you might think. I’m not just talking about word problems or mathy brain teasers like the Birthday Puzzle or the jugs of water trap from Die Hard with a Vengeance.

For twenty-five years, Martin Gardner penned a column in Scientific American called Mathematical Games, adding a marvelous sense of puzzly spirit and whimsy to the field of mathematics, exploring everything from the works of M.C. Escher to visual puzzles like the mobius strip and tangrams. He was also a champion of recreational math, the concept that there are inherently fun and entertaining ways to do math, not just homework, analysis, and number crunching.

And on more than one occasion, Gardner turned to the genius and innovative thinking of John Horton Conway for inspiration.

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[Image courtesy of Wikipedia.]

Conway was best known as a mathematician, but that one word fails to encapsulate either his creativity or the depth of his devotion to the field. Conway was a pioneer, contributing to some mathematical fields (geometry and number theory among them), vastly expanding what could be accomplished in other fields (particularly game theory), and even creating new fields (like cellular automata).

Professor of Mathematics, Emeritus, Simon Kochen said, “He was like a butterfly going from one thing to another, always with magical qualities to the results.” The Guardian described him in equally glowing terms as “a cross between Archimedes, Mick Jagger and Salvador Dalí.”

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[Image courtesy of Cornell.edu.]

His most famous creation is The Game of Life, a model that not only visually details how algorithms work, but explores how cells and biological forms evolve and interact.

Essentially, imagine a sheet of graph paper. In The Game of Life, you choose a starting scenario, then watch the game proceed according to certain rules:

  • Any live cell with fewer than two live neighbors dies, as if by underpopulation.
  • Any live cell with two or three live neighbors lives on to the next generation.
  • Any live cell with more than three live neighbors dies, as if by overpopulation.
  • Any dead cell with exactly three live neighbors becomes a live cell, as if by reproduction.

The process plays out from your starting point completely without your intervention, spiraling and expanding outward.

It’s the ultimate if-then sequence that can proceed unhindered for generations. It is a literal launchpad for various potential futures based on a single choice. It’s mind-bending and simple all at once. (And you can try it yourself here!)

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[Image courtesy of Sign-Up.To.]

But that’s far from Conway’s only contribution to the world of puzzles.

Not only did he analyze and explore puzzles like the Soma cube and Peg Solitaire, but he created or had a hand in creating numerous other puzzles that expanded upon mathematical concepts.

I could delve into creations like Hackenbush, the Angel Problem, Phutball/Philosopher’s Football, Conway’s Soldiers, and more — and perhaps I will in the future — but I’d like to focus on one of his most charming contributions: Sprouts.

Sprouts is a pencil-and-paper strategy game where players try to keep the game going by drawing a line between two dots on the paper and adding a new dot somewhere along that line.

The rules are simple, but the gameplay can quickly become tricky:

  • The line may be straight or curved, but must not touch or cross itself or any other line.
  • The new spot cannot be placed on top of one of the endpoints of the new line. Thus the new spot splits the line into two shorter lines.
  • No spot may have more than three lines attached to it.

Check out this sample game:

sprouts

[Image courtesy of Fun Mines.]

It’s a perfect example of the playfulness Conway brought to the mathematical field and teaching. The game is strategic, easy to learn, difficult to master, and encourages repeated engagement.

In a piece about Conway, Princeton professor Manjul Bhargava said, “I learned very quickly that playing games and working on mathematics were closely intertwined activities for him, if not actually the same activity.”

He would carry all sorts of bits and bobs that would assist him in explaining different concepts. Dice, ropes, decks of cards, a Slinky… any number of random objects were mentioned as potential teaching tools.

Professor Joseph Kohn shared a story about Conway’s enthusiasm for teaching and impressive span of knowledge. Apparently, Conway was on his way to a large public lecture. En route, he asked his companions what topic he should cover. Imagine promising to do a lecture with no preparation at all, and deciding on the way what it would be about.

Naturally, after choosing a topic in the car, the lecture went off without a hitch. He improvised the entire thing.

Of course, you would expect nothing less from a man who could recite pi from memory to more than 1100 digits? Or who, at a moment’s notice, could calculate the day of the week for any given date (employing a technique he called his Doomsday algorithm).

Conway unfortunately passed away earlier this month, due to complications from COVID-19, at the age of 82.

His contributions to the worlds of mathematics and puzzles, not to mention his tireless support of recreational math, cannot be overstated. His work and his play will not soon be forgotten.

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[Image courtesy of Macleans.]

If you’d like to learn more about Conway, be sure to check out Genius at Play: The Curious Mind of John Horton Conway by Siobhan Roberts.

[My many thanks to friend of the blog Andrew Haynes for suggesting today’s subject and contributing notes and sources.]

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