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The Puzzler

The Puzzler

One Man's Quest to Solve the Most Baffling Puzzles Ever, from Crosswords to Jigsaws to the Meaning of Life
by A.J. Jacobs 2022 368 pages
3.93
3k+ ratings
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Key Takeaways

1. Puzzles Cultivate a Mindset for Solving Life's Complexities

Doing puzzles can make us better thinkers, more creative, more incisive, more persistent.

A transformative worldview. The author's journey into the world of puzzles revealed that they are far more than mere pastimes; they are powerful tools for cognitive and personal development. Engaging with puzzles fosters a "puzzle mindset"—a ceaseless curiosity about the world and a persistent desire to find solutions, whether in crosswords or complex societal issues. This mindset encourages a proactive, analytical approach to challenges, moving beyond simple observation to active engagement.

Beyond mental sharpness. While puzzles offer mild evidence of delaying cognitive decline, their true benefit lies in their ability to shift our worldview. They act as a "balm against anxiety, anger, depression," providing a structured environment to practice problem-solving skills applicable to real life. From navigating personal relationships to understanding global politics, the lessons learned from puzzles—like persistence and seeking fresh perspectives—can be invaluable.

Historical impact. Puzzles have historically played significant roles beyond entertainment, influencing religion, love, and even war. For instance, the British secret service famously used a crossword puzzle in The Daily Telegraph to recruit codebreakers against the Nazis, demonstrating how puzzle-solving skills can directly contribute to critical real-world outcomes. This underscores the profound, often unseen, influence of puzzles on human history and progress.

2. The Universal Allure: Finding Order and Certainty in Chaos

With crosswords, there is one correct answer. So that’s comforting.

The "aha!" moment. At the core of every puzzle's appeal is the arc of bafflement, wrestling, and eventual solution, encapsulated by the Japanese puzzlemaker Maki Kaji's elegant formula: ? → !. This journey from confusion to clarity provides a unique psychological satisfaction, a dopamine hit that reinforces the pleasure of exercising our abilities. It's a mini-drama of conflict and resolution, mirroring the narratives we seek in art and life.

A wired human need. Psychologist Paul Bloom suggests two compatible theories for our puzzle obsession. Culturally, we learn to associate effort with positive feelings, understanding that good things come from hard work. More fundamentally, we may be "wired within us to take pleasure in the exercise of our abilities," as puzzles serve as practice for solving real-world problems, a crucial evolutionary advantage.

Certainty in an uncertain world. In a confusing and often unpredictable reality, puzzles offer a rare sense of control and definitive closure. As actor Neil Patrick Harris and crossword editor Will Shortz note, unlike life's messy problems, puzzles have a tidy resolution, allowing us to achieve a fleeting moment of perfection. This certainty provides a comforting escape and a tangible measure of accomplishment.

3. Embrace Flexibility and the "Way of the Eraser" for Growth

Good advice for both life and puzzles.

Flexibility over rigidity. A crucial lesson from crosswords, particularly from legendary constructor Peter Gordon, is the importance of mental flexibility. This means being open to new perspectives and not falling in love with initial hypotheses. The author's struggle with a crossword clue ("Bee relative") where "API" (bees) was incorrect, and the answer was "OPIE" (Aunt Bee's nephew), perfectly illustrates the need to abandon preconceived notions.

The power of mistakes. The "Way of the Eraser" symbolizes the acceptance of mistakes and tentative beliefs. Using a pencil and eraser, or the digital delete key, encourages experimentation without fear of permanent error. This approach fosters epistemic humility, recognizing that most beliefs are hypotheses awaiting new evidence, ready to be updated or discarded.

Beyond puzzles. This flexible mindset extends to all aspects of life, from parenting to marriage. The author's commitment to holding core beliefs "in pen" (like kindness) while keeping others "in pencil" (open to revision) reflects a profound shift in thinking. This adaptability, honed through puzzle-solving, allows for continuous learning and a more nuanced understanding of the world.

4. Shift Perspective: Scale Down and Reframe Problems for Solutions

The lesson my students taught me is that I’m good at thinking outside the box. But I realized, I’m inside my own bigger box. And maybe we all are.

Thinking "outside the box." The origin of this cliché lies in an actual puzzle, demonstrating that solutions often require breaking expectations and viewing problems from an entirely new angle. Math puzzle expert Tanya Khovanova highlights how her students, when faced with the "five apples, five friends" riddle, offered solutions "even farther out of the box" than the traditional answer, revealing the limits of even an expert's conventional thinking.

Strategies for reframing:

  • Reverse it: Turn the problem upside down, sometimes literally (e.g., the number sequence 16 06 68 88 __ 98, which is 87 when viewed upside down).
  • Figure out the real goal: Strip away irrelevant details to identify the core objective (e.g., the fly on bikes problem, where the fly's back-and-forth path is irrelevant to its total distance flown).
  • Make it small: Reduce complex problems to their simplest versions (e.g., the green-eyed guru puzzle, scaled down to two or three islanders to reveal the underlying logic).

Life's mullets and perspectives. This problem-solving approach extends to daily life. The author's decision to only cut the front of his hair during quarantine, realizing that only the front would be seen on Zoom, is a humorous example of reframing a problem to its essential goal. Similarly, optical illusions like the face/vase or Ebbinghaus illusion teach us that our perceptions are not pure; they are shaped by context and preconceptions, underscoring the power of chosen frames.

5. Beyond the Surface: Uncovering Hidden Meanings While Avoiding Deception

We have this desire to know things that are hidden or secret. If you put ‘secret’ or ‘lost’ in the title of a book, it will sell.

The treasure hunt instinct. Visual puzzles, particularly hide-and-seek variations like "Where's Waldo?" or Pieter Bruegel the Elder's Netherlandish Proverbs, tap into a primal human desire to discover hidden things. This "treasure hunt instinct" encourages us to look more closely at the world, to notice details, and to appreciate the subtle nuances often overlooked in our fast-paced lives.

The peril of apophenia. However, this instinct carries a significant danger: apophenia, the tendency to see patterns or hidden meanings where none exist. The Baltimore Sun's infamous "Spot the difference" correction, where two identical images were mistakenly printed, drove readers "half-insane" searching for nonexistent variations, serving as a "Kafkaesque" metaphor for life's potential meaninglessness.

Conspiracy and self-deception. The Masquerade book, which hid clues to a buried golden rabbit, led to widespread obsession and self-deception, with treasure hunters digging up acres of countryside and clinging to their theories even after the prize was found. Similarly, The Da Vinci Code's plot, while entertaining, largely relies on fabricated hidden symbols. These examples highlight how easily our pattern-matching brains can be swayed by compelling narratives, even in the absence of evidence, leading to phenomena like QAnon.

6. The Art of Puzzle Design: Creativity Within Constraints

If art is all about creativity within constraints, crosswords go above and beyond, with more constraints than haiku or Broadway musicals.

Crafting mental delights. The creation of puzzles is an art form, demanding immense creativity and ingenuity within strict limitations. Legendary crossword maker Peter Gordon, for instance, navigates numerous rules: avoiding "crosswordese," preventing "Naticks" (obscure crossings), ensuring accuracy, and maintaining grid symmetry. These constraints, rather than stifling creativity, often force designers to innovate and find elegant solutions.

Human touch vs. machine. While computers can generate countless logic puzzles, master creators like Tetsuya Miyamoto (KenKen) and Thomas Snyder (Sudoku) argue that handcrafted puzzles possess a unique artistry. They speak of puzzles that "tell stories," with elegant "breadcrumb trails" and surprising twists that evoke a deeper connection with the solver's mind, a quality machines cannot replicate.

The puzzlemaker's dilemma. A good puzzle aims to evoke a specific emotional response: pride in solving, mixed with a touch of shame for not seeing the obvious sooner. However, designers must walk a fine line, avoiding puzzles that are too random, too unclear, or require excessive "busywork" without sufficient "checkpoints" or moments of revelation. The goal is to challenge, not to infuriate, ensuring the solver remains engaged in the struggle.

7. The Journey is the Reward: Embracing the Struggle and Imperfection

Do not want the answer. Just enjoy the trial and error.

The value of the "arrow." Maki Kaji, the "godfather of Sudoku," emphasized that the true essence of puzzling lies not just in the "!" (solution) but in the "→" (the journey of trial and error). This philosophy encourages embracing the process, the "dancing with numbers" or the meditative state of fitting jigsaw pieces, rather than solely fixating on the end result.

Learning from "successful failures." KenKen inventor Tetsuya Miyamoto, a self-professed "serial failure," believes that "failure is much more important than success." His life philosophy, rooted in Buddhist principles, advocates for enjoying the struggle and understanding that "Fail 10,000 times, big success." This perspective reframes setbacks as essential steps on the path to mastery and deeper understanding.

Accepting incompleteness. The author's experience with the 48,000-piece jigsaw puzzle, abandoned after a larger one was released, and the Mount Fuji puzzle box that only opened when dropped, highlight the reality that not all puzzles yield to traditional "solutions." Sometimes, the lesson is about accepting imperfection, letting go of overambitious goals, or finding unconventional ways to achieve a form of closure. This acceptance of uncertainty and ambiguity can be a profound life skill.

8. Puzzles as a Catalyst for Human Connection and Cooperation

It’s not the puzzles you solve, it’s the people you meet.

Shared struggle, shared bonds. Puzzle events, from the World Jigsaw Puzzle Championship to the MIT Mystery Hunt, reveal puzzles as powerful social connectors. The shared experience of grappling with a difficult challenge fosters camaraderie, teamwork, and even "jigsaw diplomacy," as seen when the author's family received a bear mascot from the Russian champions. This bonding transcends national borders and cultural differences.

Bridging divides. Research by behavioral economist Cass Sunstein suggests that puzzles can even bridge political divides. While debating issues often drives liberals and conservatives further apart, working together on a crossword puzzle can foster cooperation and mutual understanding. This highlights the potential for puzzles to create common ground in an increasingly polarized world.

Teamwork and diverse minds. Large-scale puzzle hunts, like the MIT Mystery Hunt, thrive on diverse teams comprising engineers, astronomers, and pop culture experts. The need for varied knowledge and problem-solving approaches underscores the value of collaboration. Even in individual pursuits, the author's experience with his son solving a difficult chess problem or with Ellie Grueskin tackling Miyamoto's KenKen masterpiece demonstrates the power of shared effort and perspective-taking.

9. The Paradox of Choice: Finding Freedom and Creativity in Limitations

The enemy of art is the absence of limitations.

Constraints breed creativity. The overwhelming nature of limitless options can be paralyzing. Puzzles, by their very nature, impose strict rules and boundaries, which paradoxically unleash creativity. Whether it's the intricate guidelines for crossword construction or the specific movements required for a Rubik's Cube, these limitations force the mind to innovate and find elegant solutions within a defined framework.

Freedom from decision-making. The contrast between mazes and labyrinths illustrates the appeal of structured paths. While mazes offer choices and the challenge of getting lost, labyrinths provide a single, winding path, offering "freedom FROM choice." This can be a welcome respite from the constant decision-making of daily life, providing a meditative and serene experience, akin to Barack Obama's fantasy of a T-shirt shop selling only one item.

The Goldilocks zone. Effective puzzle design, and indeed effective problem-solving, lies in finding the "Goldilocks zone"—puzzles that are neither too easy nor too impossible. Too few constraints can lead to overwhelming ambiguity, while too many can make a puzzle impenetrable or tedious. The challenge for puzzlemakers is to craft limitations that guide, inspire, and ultimately reward the solver's ingenuity.

10. Infinite Puzzles Reflect Humanity's Boundless Ingenuity

There are 43 quintillion combinations of the Rubik’s Cube—and yet, somehow, humans have figured out how to twist the sides into that single arrangement of solid red, blue, yellow, and so on.

Conquering the unimaginable. The sheer scale of possibilities in some puzzles, like the Rubik's Cube's 43 quintillion combinations or the Octahedron Starminx's 2 followed by 137 zeroes, is mind-boggling. Yet, humans consistently find ways to impose order on this chaos, demonstrating an extraordinary capacity for ingenuity and persistence. This ability to find a "needle in a haystack the size of the moon" is a testament to our problem-solving drive.

Generation puzzles and the vastness of time. Recursive puzzles, such as the Chinese ring puzzle or the Tower of Hanoi, embody the concept of "generation puzzles," designed to take generations to solve. The author's custom-made "Jacobs' Ladder," requiring 1.2 decillion moves (1 followed by 33 digits), serves as a physical manifestation of the vastness of time and human ambition. It's a reminder of our place in the grand scheme of the universe and the potential for enduring legacies.

Optimism for the future. Despite the daunting complexity of some puzzles and the rise of artificial intelligence, the author finds optimism in human ingenuity. Chess master Garry Kasparov, famously beaten by Deep Blue, believes the future lies in "humans collaborating with machines," leveraging human creativity alongside machine processing power. This collaborative spirit, combined with the meditative practice of engaging with infinite puzzles, offers a hopeful vision for tackling the world's most intractable problems.

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