2020–2021
1,020 posts
2021 601
December 2021
- Reversals
- Bang 3
- Imagining the Worst
- Toynbee Tiles
- Homage 2
- The Fence Telephone
- Will Power
- In a Word
- A Missed Train
- Summary
- RSS Quiz
- “A Little Short Story”
- Zipf’s Law
- Windtowers
- Simplest Terms
- “The Black Patch”
- A Christmas Puzzle
- Unquote
- Concealed Shoes
- Black and White
- Reunited
- Unwinese
- A Private World
- Three in One
- Precocious
- Network
- Turning Back Time
- Crowd Control
- Keep Right
- Onlookers
- Self-Portrait
- Intangible Assets
- The Other Half
- Love and Law
- The Wollemi Pine
- Mystery Guest
- Presence
- In a Word
- Data
- Palindromic Substrings
- Balance
- Reunion
- Head Over Heels
- Literally
- Eventful
- Three Predictions
- Pointlessness Exalted
- Out, Out!
- Small World
- In a Word
- The Nearby Daughter
- A Perfect Alphabet
- With All Speed
November 2021
- A Welcome Outcome
- Easy Does It
- Unquote
- Podcast Episode 365: Lateral Thinking Puzzles
- The Open Christmas Letter
- The Green Cathedral
- Black and White
- A for Effort
- Second Strike
- See You Around
- Lodging a Complaint
- Full Circle
- Misdemeanor
- Podcast Episode 364: Sidney Cotton’s Aerial Reconnaissance
- The Tree of 40 Fruit
- In Plain Sight
- Fowl Grace
- Silent Speech
- A One-Sided Score
- The Débutante
- Nocturne
- A Good Walk Spoiled
- A Legal Fiction
- Inspiration
- Supply and Demand
- Podcast Episode 363: The Lambeth Poisoner
- Noc
- Just Checking
- Progress
- The Blythe Intaglios
- The Trust Game
- Blissymbols
- First Class
- In a Word
- Extra Credit
- A Box Code
- Unquote
- Hall’s Marriage Theorem
- Key Testimony
- The Silent Trade
- Landscape Portrait
- Free Enterprise
- Black and White
- Shop Talk
- The President’s Mystery
- Freeze!
- The Chatsworth Violin
- Tilt 3
- Part Two
- Precocious
October 2021
- The Giant of Castelnau
- Forgotten Pearls
- Enduring Advice
- A Feathered Nest
- Mama Bird
- “The Hammock Puzzle”
- Inspiration
- Exercise
- Two for One
- Lincoln at Rest
- Podcast Episode 362: The Leatherman
- The Wilcoxon Speech
- Excerpts
- Equilibrium
- Hope and Change
- Playing to Type
- Footwork
- In a Word
- The Mozart of the Sea
- Payment in Kind
- “The Frogs and Tumblers”
- Unquote
- Podcast Episode 361: A Fight Over Nutmeg
- Boo 9
- Notes 2
- Unnatural Beauty
- Black and White
- Character Study
- Diplomacy
- A Guest Appearance
- Self-Study
- Plausible Deniability
- Podcast Episode 360: Haggard’s Dream
- Turning Point
- House Rules
- Order 3
- Starting Funds
- A Geometric Illusion
- A Cool Customer
- Progress
- Ear and Eye
- In a Word
- “The Roadside Littérateur”
- Podcast Episode 359: Stranded in Shangri-La
- Triple Threat
- The Grim Reaper Paradox
- Unquote
- Youth and Genius
September 2021
- Credit
- First Light
- Eye Music
- Looking Up
- Settling Accounts
- Different
- Black and White
- Court Order
- A Silver Lining
- Langley’s Adventitious Angles
- Miniatures
- Fleeting
- Extra Credit
- Even Up
- The Black Beetle
- Protocol
- Closer
- The Switchback Puzzle
- Local Materials
- The Case of the Speluncean Explorers
- Perspective
- In a Word
- The Cat Gap
- Out of the Way
- Overhead
- Kitchen Aid
- Unquote
- Saying Goodbye
- Made to Order
- Podcast Episode 358: The Radium Girls
- “Forgotten Words Are Mighty Hard to Rhyme”
- Blood Brothers
- “Epitaph on Fop, A Dog Belonging to Lady Throckmorton”
- Black and White
- “A Match Puzzle”
- Sorcery
- Exam Week
- Benedetti’s Puzzle
- To Town
- Podcast Episode 357: Scenes From an Earthquake
- Berkson’s Paradox
- Something New
- An Antarctic Disappearance
- Cutting It Fine
- Anscombe’s Quartet
- Coincidence
- Growing Room
- Choosing
August 2021
- Meno’s Paradox
- The Billups Neon Crossing Signal
- In a Word
- Podcast Episode 356: A Strawberry’s Journey
- Landscapes
- The Fortsas Hoax
- Slow Life
- $50 for All
- Dark Days
- Paint Job
- Unquote
- Golden Joinery
- Sale
- Away From It All
- Black and White
- Podcast Episode 355: The Auckland Islands Castaways
- The Perfect Box
- A Portable Bed
- Footwork
- Self-Improvement
- Real Time
- For the Record
- The Paradox of the Just Law
- Shared Birthdays
- Justified Killing
- Slow Burn
- Sweet Music
- Podcast Episode 354: Falling Through a Thunderstorm
- The Conway Circle Theorem
- The Queens Giant
- The Picnic
- Battlefield ID
- In a Word
- Digit Work
- The Emaciated Child
- Still Waters
- Identity
- Exchange
- Unquote
- Podcast Episode 353: Lateral Thinking Puzzles
- Skulduggery
- “Fear Is the Bane of the Happy”
- Black and White
- Ethology
- Above It All
- Upscale
- Tank Hunt
- Simple Enough
- Salutations
- Packing Numbers
- Limerick
- The Wine-Bin
- Travel Broadens the Mind
July 2021
- “Fine Words Butter No Parsnips”
- It Begins
- Sea Horses
- Signing Off
- Misc 85
- The Right Place
- Implementia
- Problem Solved
- Skylon
- In a Word
- Podcast Episode 352: A Victorian Hippopotamus
- Making a Point
- Officers
- A Rare Eagle
- Unquote
- Wandering Minds
- Fieldwork
- Please Help!
- Repeater
- Words and Motion
- Fixing a Point
- Black and White
- Podcast Episode 351: Notes and Queries
- The Vesper
- Ventriloquism
- The Long Way
- Missing
- The Empty Library
- Enlightenment
- “Typesetting Tarradiddle”
- Mr. Lucky
- Math Notes
- “Dare to Be Yourself”
- Brahmagupta’s Theorem
- Podcast Episode 350: Symmes’ Hole
- Lorina Bulwer
- Choice Blindness
- Fredkin’s Paradox
- All Wet
- Unquote
- So Ordered
- Boxing Day
- Uncombable Hair Syndrome
- In a Word
- Dicto Simpliciter
- Podcast Episode 349: The National Hotel Disease
- The Asch Conformity Experiments
- Time Trouble
- Black and White
- Mission Accomplished
- Inventory
June 2021
- The British Flag Theorem
- The Garden of Eden
- Harmony
- Do It Yourself
- Quickie
- Podcast Episode 348: Who Killed the Red Baron?
- A Plate of 1,000 Cookies
- Wanderlust
- Extended Engagement
- Self-Made Man
- Thomsen’s Theorem
- Public Spirit
- Evolution
- “Fermat’s Last Theorem”
- Bottema’s Theorem
- The Aventine Keyhole
- Unquote
- Podcast Episode 347: The Cottingley Fairies
- The Friendship Medals
- “The Horse of Joy”
- Round Here
- In a Word
- “A Quaint Address”
- “Secret for Thirty-Two Years”
- The Great Picture
- State House
- Neighbors
- Black and White
- Podcast Episode 346: A Desperate Winter in Antarctica
- Other Means
- Hooper’s Paradox
- Best Intentions
- Model
- “The Slash”
- Misc 84
- Last Words
- Unpretentious
- In the Dark
- “Imitative Chess”
- The Hidden Element
- Podcast Episode 345: Climbing Mont Blanc
- Streets and Order
- Obstacle Course
- Stonework
- Unquote
- Abstract Art
- Preview
- Snapshot
- Conditions
- Time Games
May 2021
- Neighbors
- “Stray Sayings”
- In a Word
- Resolution
- A Look Back
- Moving Up
- Mosaic
- “Abbey Amor”
- The Paradox of the Question
- Small Talk
- A Little Television
- Black and White
- Podcast Episode 344: Martin Couney’s Incubator Babies
- Quickie
- Blanche Monnier
- Cause and Effect
- Rendezvous
- Tribute
- Getting Around
- Attention to Detail
- Letters and Numbers
- Plea 3
- Unquote
- Podcast Episode 343: Operation Cowboy
- Memorial
- Amplitude
- Match Point
- Riddles
- The Nightingale Monument
- Relative
- In a Word
- The Seconds Pendulum
- Crossing
- Consequences
- Progress
- Podcast Episode 342: A Slave Sues for Freedom
- Trompe L’Oeil
- Nowhere Man
- An Old Friend
- The River Witham Sword
- Monometer
- Piecework
- An Elevated Perspective
- “Appendicitis”
- More Loops
- The Savage Breast
- “Ode on a Grecian Urn Summarized”
- Podcast Episode 341: An Overlooked Bacteriologist
- Expenses
- Seating Trouble
April 2021
- Unquote
- Seeing Red
- Nowheresville
- Cutting Cake
- Best Friends
- First Things First
- “The Individual and the World”
- The Presidents’ Tree
- In a Word
- Podcast Episode 340: A Vanished Physicist
- Road Games
- Jacob’s Ladder
- Remembering
- Choosing Sides
- Security
- Waste Not, Want Not
- The Bishop Problem
- Endless
- The Hawking Index
- A Packing Problem
- Black and White
- Podcast Episode 339: The Baron of Arizona
- Brave New World
- Ambiance
- The Basket Tree
- Egg Hunt
- A Look Ahead
- Right Enough
- Unquote
- Sickness and Health
- Ape Talk
- A Spider’s World
- Advice 3
- Memorial
- Viewpoint
- Throughput
- Art and Commerce
- In a Word
- Out of the Way
- “American Ships Head to Gulf”
- Double Duty
- A Reindeer Cyclone
- First Contact
- False Memory
- Moving Day
- Podcast Episode 338: A Point of Law
- Horse Sense
- The Ghost Train
- Surrounded
- Easter Fare
- Wine and Roses
- Two Birds
March 2021
- Expansive
- Better Safe
- “A Rubric on Rubik Cubics”
- Black and White
- Unquote
- Podcast Episode 337: Lost in a Daydream
- Outlook
- High and Dry
- Apt 4
- A Rare Voice
- The Haidbauer Incident
- An Early Mark
- Punctuation
- A Confusing Country
- The Horizontal Falls
- In a Word
- Podcast Episode 336: A Gruesome Cure for Consumption
- Storm Warning
- More Fortuitous Numbers
- On and Off
- Direction
- Eye Music
- Oddity
- A Self-Characterizing Figure
- Meditation
- Bright Idea
- The Endless House
- Certainty
- Podcast Episode 335: Transporting Obelisks
- If You Can’t Beat ‘Em …
- Lessons Learned
- Express
- Chin King
- Being There
- Provisions
- Easy Does It
- Black and White
- Rock Music
- One Solution
- Unquote
- Podcast Episode 334: Eugene Bullard
- Waiting in Style
- A Little Game
- “Short Road to Wealth”
- Recall
- Math Notes
- Vice Compression
- Do It Yourself
- “A Friction Paradox”
- The Longyou Caves
- A Lucrative Loop
- In a Word
- Red Flag Laws
February 2021
- Reverse Buoyancy
- Dedication
- “Piccadilly Underground Station”
- Engine Trouble
- “A Bully Is Always a Coward”
- Fitting
- Astrobiology
- Trying
- Reflection
- Beholder
- Asked and Answered
- Podcast Episode 333: Stranded in the Kimberley
- Back and Forth
- Black and White
- Oh 11
- The Stranger’s Room
- Life and Art
- Misc 83
- Unquote
- Getting There
- Moderation
- Decision Time
- Podcast Episode 332: Princess Caraboo
- Disappearing Act
- Handiwork
- Inspiration
- Route Cause
- Guilty
- Lucky Seven
- In a Word
- One World
- Tribute
- Sesquipedalian
- Podcast Episode 331: The Starvation Doctor
- Spaceship Away
- The Short of It
- Last Look
- Elbow Room
- Back to Basics
- A Promising Paradox
- Nonentity
- A Different View
- Black and White
- Locke’s Index
- All Together Now
- Podcast Episode 330: The Abernathy Boys
January 2021
- Looking Up
- Unquote
- One Nation, Indivisible
- A Folded Cube
- Calendar Boy
- Three in One
- Quickie
- Still Life
- “The Thirty-Six Dramatic Situations”
- The Inquisitive Artist
- Disappearing Act
- Podcast Episode 329: The Cock Lane Ghost
- In a Word
- The Pizza Theorem
- A New Outlook
- A Look Back
- A Stand of Seats
- Math Notes
- Exchange
- Illustration
- “De Nyew Testament”
- Podcast Episode 328: A Canine Prisoner of War
- Black and White
- Navy Barrage
- Student Debt
- Irregular
- Twice-Told Tale
- Unquote
- A New Perspective
- A Familiar Face
- Command Performance
- A Near Miss
- Podcast Episode 327: The Misplaced Tourist
- “Problem for Poultry Farmers”
- “Self-Explanatory”
- Child’s Play
- Vanishing Act
- A Special Year
- Small World
- Math Notes
- The Flettner Rotor
- More Bad Verse
- Prime Circles
- In a Word
- Podcast Episode 326: The Recluse of Herald Square
- Technique
- Wave
2020 419
December 2020
- Background
- Decorum
- Correspondence
- Undefined
- Black and White
- Home Primes
- Unquote
- Podcast Episode 325: Lateral Thinking Puzzles
- De Bruijn’s Theorem
- Two Christmas Quizzes
- Fortunate Numbers
- The Coinage Shield
- The Clever Way
- Duress
- Taylor–Couette Flow
- Application
- Gravity
- Podcast Episode 324: The Bizarre Death of Alfred Loewenstein
- Franklin’s Magickest Square
- An Elevated View
- Hex
- “Sleeping Man a Suicide”
- MIThenge
- Hostilities
- Neighbors
- A Nursery Sonnet
- The Isdal Woman
- Clout
- In a Word
- Podcast Episode 323: The Blind Traveler
- O Canada
- A Last Goodbye
- First Things First
- Moving Parts
- A Little Latin
- Black and White
- The Chrysler Norseman
- Grammatical Illusions
- Quickie
- The Value of Disagreement
- Unquote
- Podcast Episode 322: Joseph Medicine Crow
- The Substitute
- Quarters
- Old Booty’s Ghost
- After You
- “Half-Hanged Smith”
- Constrained Travel
- Misc 82
- Edge Case
- A Christmas Puzzle
- A Sad Mystery
November 2020
- Colloquy
- Podcast Episode 321: The Calculating Boy
- The Logic House
- Knowledge and Belief
- Art and Commerce
- Foursquare
- The Boekenkast
- In a Word
- Shikaku
- Straight and Narrow
- Podcast Episode 320: John Hornby and the Barren Lands
- Black and White
- Hoist/Petard
- Fair Exchange
- Donkey Sentences
- The Love List
- Boom Town
- Across the Universe
- Another First
- The Hard Way
- Next Steps
- Unquote
- Podcast Episode 319: Friedrich Kellner’s Opposition
- A New Knot
- A Captivating Entertainment
- The Mysterious Melody
- The Final Frontier
- Arithmetic Billiards
- Remembrance
- A Prime Formula
- Spreading Word
- The Buchowski Paradox
- Something Else
- The Kobon Triangle Problem
- Going Up
- Caution
- In a Word
- Heavens
- The Church Cipher
- “The New Europe”
- Testamentary Matters
- Company
- World Music
- Black and White
- Podcast Episode 318: Peace Pilgrim
- Hoary-Headed Frosts
October 2020
- In the Beginning
- Wishful Thinking
- Still Life
- More Reversible Verse
- Lesson 2
- Getaway
- Careful
- Harmony
- Euphony
- Unquote
- Podcast Episode 317: Lateral Thinking Puzzles
- Birdsong
- Brave New World
- The Curse of Billy Penn
- A Glass Darkly
- Climate Music
- Board Meeting
- The Impossible Dream
- Results
- Never Mind
- A Sleeping Cat
- In a Word
- Podcast Episode 316: A Malaysian Mystery
- Resource Management
- The Third Card
- The Tunnel of Eupalinos
- Clockwork
- The Safety Scoop
- Animation
- Time Share
- Traffic Lights
- Black and White
- The Persian Princess
- Podcast Episode 315: Beryl Markham’s Unconventional Life
- Watch Your Step
- Miss and Hit
- Throwing a Curve
- Local Rules
- Figure and Ground
- Experiment
- The Burned House Phenomenon
- Unquote
- For What It’s Worth
- Remedy
- Podcast Episode 314: The Taliesin Murders
- Turnabout
- The Swampman
- Bird Brains
- Magic 6
- Emily
- In a Word
September 2020
- A New Lease
- The Body in the Cylinder
- The AVE Mizar
- Living Sculpture
- Duty
- Podcast Episode 313: The Santa Claus Association
- Dürer’s Unfolding Problem
- Pursuit
- Repose
- First Things First
- Family Resemblance
- Outreach
- “Hannibal, Missouri”
- What’s in a Name?
- Black and White
- Distinction
- Missing
- Podcast Episode 312: The Last of the Yahi
- Red Square
- Elephants and Locomotives
- The Incentive Trap
- Unquote
- Ethology
- Root Words
- Better Safe
- Scoops
- A Perfect Square
- Reliable
- One of a Kind
- Podcast Episode 311: A Disputed Russian Princess
- Risk Analysis
- In a Word
- A Moving Target
- The Longest Game
- Competing Squares
- A New Perspective
- No Waiting
- A Banana Split
- Unspoken
- Unraveled
- Podcast Episode 310: The Case of Bobby Dunbar
- Black and White
- Long Distance
- Art and Artifice
- Company
- Faux Faulkner
- A Tanned Pascal
- Early Warning
- Aiming High
- Elegance
August 2020
- Unquote
- Podcast Episode 309: The ‘Grain of Salt’ Episode
- Top Drawer
- Clearance
- All for One
- Mirror Therapy
- “The House”
- A Stressful Game
- Small World
- The Stairs of Reconciliation
- One Two Three
- Intentions
- In a Word
- Podcast Episode 308: Nicholas Winton and the Czech Kindertransport
- Fact and Fiction
- A Perfect Bore
- An Unexpected Party
- Forward and Back
- An Even Dozen
- Specimen
- For the Record
- Noted 18
- Thinking Big
- Math Notes
- Two in One
- The Moses Bridge
- Local Fauna
- Black and White
- Conversation Piece
- A Late Arrival
- Coming Attractions
- A Discreet Correspondence
- Left and Right
- Unquote
- Russell’s Decalogue
- All’s Fair
- Twice True
- Podcast Episode 307: The Cyprus Mutiny
- Voting With One’s Feet
- A Bimagic Queen’s Tour
- The Isolator
- Memorial
- Inside Business
- An Odd Word
- Moving Words
- In a Word
- Bending the Rules
- For What It’s Worth
- Laconic
- Podcast Episode 306: The Inventor Who Disappeared
- All Aboard
- Origins
- Starting Up
July 2020
- Podcast Episode 305: Cast Away in the New World
- Podcast Episode 304: The Dog Who Joined the Navy
- Podcast Episode 303: Camp Stark
- Podcast Episode 302: The Galápagos Affair
- Update 4
June 2020
- Podcast Episode 301: Tschiffely’s Ride
- Podcast Episode 300: Lateral Thinking Puzzles
- Podcast Episode 299: Ursula Graham Bower and the Nagas
- Update 3
- Podcast Episode 298: The Theft of the Mona Lisa
May 2020
- Podcast Episode 297: A Sinto Boxer in Nazi Germany
- Podcast Episode 296: The Little Giants
- Podcast Episode 295: An Unlikely Attempt on Everest
- Podcast Episode 294: ‘The Murder Trial of the Century’
- Update 2
April 2020
- Podcast Episode 293: Lennie Gwyther
- Podcast Episode 292: Fordlandia
- Podcast Episode 291: Half-Safe
- Podcast Episode 290: Voss’ Last Stand
March 2020
- Pausing
- In a Nutshell
- Podcast Episode 289: The Johnstown Flood
- In a Word
- Neuberg’s Theorem
- Divining
- The Last Banana
- Black and White
- For What It’s Worth
- Counting Sheep
- Underground Dining
- Medieval Music
- Secret Message
- Wildlife
- Unquote
- Finger Numerals
- The Georgia Guidestones
- “Settling a Bill”
- Magic 5
- Our System
- The Precarious Picture
- Returning the Favor
- A Near Thing
- Eye to Eye
- Art Criticism
- No Comment
- Podcast Episode 288: Death at the Lane Cove River
- Nuts
- The Paternoster Vents
- Modes of Expression
- A Self-Describing Table
- Math Notes
- In Pain
- In a Word
- Boding
- Pretending the Truth
- Misc 81
- Black and White
- Podcast Episode 287: The Public Universal Friend
- Disharmony
- Reflections
- Stop 4
- The Skynet Series
- Full Speed Ahead
- Manly Faces
- Castaway Depots
- Unquote
- Centrists
- Take 5
- Active and Passive
- Podcast Episode 286: If Day
- So There
February 2020
- Estimating Payments
- The Tonal System
- Nothing Doing
- Finger Painting
- Limerick
- Venn Primes
- How Tigers Are Made
- “It Is Not Enough to Mean Well”
- A Fitting Mascot
- Perspective
- Podcast Episode 285: The Grasshopper Plagues
- “A Remarkable Dream”
- In a Word
- The Carcross Desert
- Wooden Words
- Unquote
- Building Tangents
- Black and White
- A Movable Lake
- A New Word
- Podcast Episode 284: The Red Barn
- Sure Enough
- Gold and Dross
- A Reckoning
- A Lofty Honor
- Water Music
- Etna’s Rings
- Ghosts in Color
- Public Address
- Small World
- The Bramante Staircase
- Podcast Episode 283: The Hermit of Suwarrow
- Heel 3
- Ho Ho Ho
- The Halo Effect
- A Very Bad Day
- Right at Home
- The Digit Factory
- The Grand Tour
- Courtesy
- The “Un-Word”
- Offering
- To Whom It May Concern
- In a Word
- Dried Cats
- All Together Now
- Unquote
January 2020
- Policy
- Black and White
- Genealogy
- Moving Art
- “Lion-Eating Poet in the Stone Den”
- A Little Philosophy
- Marden’s Theorem
- An Early Voice
- Podcast Episode 282: Helga Estby’s Walk
- Applied Chemistry
- An Unexpected Party
- Exchange
- Sro 3
- Math Notes
- The Grave Creek Stone
- Parenthood
- Longplayer
- Last Resident
- Podcast Episode 281: Grey Owl
- Borrowed Gold
- Overheard
- Shifting Ground
- Midnight Oil
- The Writer
- Dunsany’s Chess
- Buried Treasure
- In a Word
- Reversing Relations
- Lost in Translation
- Unquote
- Podcast Episode 280: Leaving St. Kilda
- More Prime Images
- Nine Lives
- False Fronts
- Black and White
- The Liberal Paradox
- Snug 2
- Huaso’s Jump
- Advance Notice
- Sphericons
- The Smithy Code
- Podcast Episode 279: The Champawat Tiger
- Quick Thinking
- All Right Then
- Nets and Tabs
- Moving Up
- Miwin’s Dice
- The Minister’s Treehouse
- Self-Scrutiny