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2023-12-09
The clue for today's puzzle just made everything make way more sense.
Seth Cohen
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/blog/107
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"Uncanny" royal coincidence
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Archive
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2026
May 2026
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Mixing Wordle with other games
Feb 2026
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2025
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Christmas card 2025
Nov 2025
Christmas (2025) is coming!
Sep 2025
The partridge puzzle
Aug 2025
TMiP 2025 puzzle hunt
Jun 2025
A nonogram alphabet
Mar 2025
How to write a crossnumber
Jan 2025
Christmas (2024) is over
Friendly squares
2024
Dec 2024
A regular expression Christmas puzzle
Christmas card 2024
Nov 2024
Christmas (2024) is coming!
Feb 2024
Zines, pt. 2
Jan 2024
Christmas (2023) is over
2023
▼ show ▼
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Dec 2023
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Nov 2023
Christmas (2023) is coming!
Zines
Sep 2023
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May 2023
Chalkdust issue 17
Apr 2023
Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
Jan 2023
Christmas (2022) is over
2022
▼ show ▼
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Dec 2022
Off-by-one errors
Christmas card 2022
Nov 2022
Christmas (2022) is coming!
Oct 2022
24 Hour Maths Game Show
Mar 2022
Approximating π
Feb 2022
Build your own MENACE
Jan 2022
Christmas (2021) is over
2021
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Dec 2021
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Nov 2021
Christmas (2021) is coming!
Sep 2021
TMiP 2021 puzzle hunt
May 2021
Close encounters of the second kind
Jan 2021
Christmas (2020) is over
2020
▼ show ▼
▲ hide ▲
Dec 2020
Christmas card 2020
Nov 2020
Christmas (2020) is coming!
Jul 2020
Happy -12+5e-π+√3 Approximation Day!
May 2020
A surprising fact about quadrilaterals
Interesting tautologies
Mar 2020
Log-scaled axes
Feb 2020
PhD thesis, chapter ∞
PhD thesis, chapter 5
PhD thesis, chapter 4
PhD thesis, chapter 3
Inverting a matrix
PhD thesis, chapter 2
Jan 2020
PhD thesis, chapter 1
Gaussian elimination
Matrix multiplication
Christmas (2019) is over
2019
▼ show ▼
▲ hide ▲
Dec 2019
Visualising MENACE's learning
Christmas card 2019
Nov 2019
Christmas (2019) is coming!
Sep 2019
A non-converging LaTeX document
TMiP 2019 treasure punt
Jul 2019
Big Internet Math-Off stickers 2019
Jun 2019
Proving a conjecture
Apr 2019
Harriss and other spirals
Mar 2019
realhats
Jan 2019
Christmas (2018) is over
2018
▼ show ▼
▲ hide ▲
Dec 2018
Christmas cross stitch
MENACE in fiction
Christmas card 2018
Nov 2018
Christmas (2018) is coming!
Sep 2018
Runge's Phenomenon
Jul 2018
World Cup stickers 2018, pt. 3
Mathsteroids
Jun 2018
World Cup stickers 2018, pt. 2
May 2018
A bad Puzzle for Today
Apr 2018
Building MENACEs for other games
Mar 2018
A 20,000-to-1 baby?
World Cup stickers 2018
Jan 2018
Origins of World War I
Christmas (2017) is over
2017
▼ show ▼
▲ hide ▲
Dec 2017
Christmas card 2017
Nov 2017
Christmas (2017) is coming!
MENACE at Manchester Science Festival
Jun 2017
Big Ben Strikes Again
Mar 2017
The end of coins of constant width
Dragon curves II
Feb 2017
The importance of estimation error
Jan 2017
Is MEDUSA the new BODMAS?
2016
▼ show ▼
▲ hide ▲
Dec 2016
Christmas (2016) is over
Video game surfaces
Christmas card 2016
Nov 2016
Christmas (2016) is coming!
Oct 2016
Logical contradictions
Palindromic dates
Sep 2016
Tube map kaleidocycles
Jul 2016
Solving the cross diagonal cover problem
Jun 2016
Braiding, pt. 2
Braiding, pt. 1
Making names in Life
May 2016
Euro 2016 stickers
Mar 2016
Proving Pythagoras' theorem
Dragon curves
The
Mathematical Games
of Martin Gardner
Jan 2016
Christmas (2015) is over
2015
▼ show ▼
▲ hide ▲
Nov 2015
Christmas (2015) is coming!
Oct 2015
How to kick a conversion
How much will I win on the new National Lottery?
Aug 2015
How OEISbot works
MENACE
Mar 2015
Optimal Pac-Man
Tube map stellated rhombicuboctahedron
Logic bot, pt. 2
Design your own flexagon
Jan 2015
Tube map Platonic solids, pt. 3
2014
▼ show ▼
▲ hide ▲
Nov 2014
Logic bot
Sep 2014
Electromagnetic Field talk
Jun 2014
Tennis maths
May 2014
World Cup stickers
Apr 2014
Countdown probability, pt. 2
Countdown probability
Mar 2014
New machine unfriendly £1 coin, pt. 2
New machine unfriendly £1 coin
2013
▼ show ▼
▲ hide ▲
Dec 2013
Assorted christmaths
Pointless probability
Jul 2013
"Uncanny" royal coincidence
Raspberry Pi weather station
2012
▼ show ▼
▲ hide ▲
Nov 2012
Tube map Platonic solids, pt. 2
Oct 2012
Tube map Platonic solids
Tags
numbers
exponential growth
harriss spiral
ternary
chess
frobel
curvature
signorini conditions
palindromes
weak imposition
reuleaux polygons
weather station
fractals
data
football
hexapawn
wordle
crosswords
approximation
bluesky
mathsjam
runge's phenomenon
coins
kings
bodmas
squares
reddit
people maths
dataset
london
partridge puzzle
light
bempp
oeis
puzzles
logo
sorting
stirling numbers
computational complexity
cross stitch
inline code
bubble bobble
advent calendar
raspberry pi
accuracy
geometry
turtles
electromagnetic field
national lottery
wave scattering
edinburgh
alphabets
pizza cutting
pokémon wordle
hyperbolic surfaces
a gamut of games
royal baby
matrix multiplication
matrix of minors
tetris
misleading statistics
anscombe's quartet
rugby
estimation
talking maths in public
radio 4
sobolev spaces
noughts and crosses
fence posts
numerical analysis
live stream
newcastle
crossnumber
geogebra
youtube
folding paper
dragon curves
hannah fry
plastic ratio
final fantasy
chalkdust magazine
zines
dinosaurs
pi approximation day
pythagoras
datasaurus dozen
php
polynomials
warwick
chebyshev
captain scarlet
triangles
hats
nine men's morris
menace
flexagons
platonic solids
sport
recursion
royal institution
bots
world cup
convergence
phd
european cup
pascal's triangle
24 hour maths
thirteen
errors
big internet math-off
arrangement puzzles
simultaneous equations
asteroids
rust
christmas card
london underground
cambridge
logic
graph theory
news
standard deviation
mathsteroids
martin gardner
countdown
quadrilaterals
probability
golden ratio
machine learning
nonograms
programming
binary
games
braiding
matrices
speed
game show probability
regular expressions
finite group
gaussian elimination
inverse matrices
manchester
draughts
statistics
arithmetic
pi
books
kenilworth
propositional calculus
game of life
preconditioning
trigonometry
boundary element methods
databet
mean
pac-man
map projections
craft
python
matrix of cofactors
latex
mathslogicbot
correlation
logs
go
dates
interpolation
finite element method
crossnumbers
video games
golden spiral
friendly squares
guest posts
ucl
gerry anderson
error bars
sound
coventry
pokémon
fonts
realhats
matt parker
rhombicuboctahedron
gather town
manchester science festival
graphs
the aperiodical
determinants
christmas
wool
folding tube maps
crochet
tennis
javascript
data visualisation
tmip
stickers
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