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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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Christmas (2025) is coming!
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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
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Zines, pt. 2
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2023
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Dec 2023
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Christmas (2023) is coming!
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Chalkdust issue 17
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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!
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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!
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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 -4-φ-√2+5√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
london
recursion
tmip
dataset
advent calendar
noughts and crosses
finite group
programming
preconditioning
matrix of cofactors
logs
phd
matrix multiplication
chebyshev
game of life
electromagnetic field
runge's phenomenon
pokémon
simultaneous equations
kings
correlation
youtube
datasaurus dozen
accuracy
martin gardner
boundary element methods
php
weather station
bots
final fantasy
game show probability
mathsjam
cross stitch
pokémon wordle
matrices
pac-man
turtles
inverse matrices
chess
mathslogicbot
weak imposition
frobel
signorini conditions
pizza cutting
news
crossnumber
logo
talking maths in public
graphs
propositional calculus
ternary
computational complexity
newcastle
graph theory
countdown
christmas
pi
royal baby
stirling numbers
alphabets
wool
databet
kenilworth
trigonometry
hats
matt parker
big internet math-off
partridge puzzle
triangles
live stream
people maths
captain scarlet
coins
football
go
games
approximation
the aperiodical
thirteen
map projections
radio 4
video games
european cup
wordle
sobolev spaces
crochet
light
javascript
braiding
errors
convergence
estimation
bempp
data visualisation
gerry anderson
flexagons
polynomials
fence posts
numerical analysis
realhats
reddit
quadrilaterals
christmas card
tennis
geometry
pi approximation day
coventry
fonts
cambridge
data
fractals
python
craft
exponential growth
mean
latex
logic
misleading statistics
anscombe's quartet
hexapawn
platonic solids
numbers
reuleaux polygons
stickers
dragon curves
raspberry pi
asteroids
harriss spiral
regular expressions
ucl
london underground
palindromes
national lottery
sport
warwick
standard deviation
crossnumbers
rhombicuboctahedron
edinburgh
geogebra
oeis
matrix of minors
arithmetic
dinosaurs
folding paper
machine learning
pascal's triangle
hannah fry
squares
crosswords
books
bluesky
folding tube maps
puzzles
zines
inline code
rugby
gaussian elimination
bodmas
nonograms
chalkdust magazine
24 hour maths
nine men's morris
manchester science festival
plastic ratio
arrangement puzzles
draughts
rust
hyperbolic surfaces
sorting
golden spiral
golden ratio
menace
binary
sound
manchester
friendly squares
determinants
wave scattering
error bars
world cup
bubble bobble
gather town
finite element method
interpolation
pythagoras
statistics
tetris
guest posts
speed
mathsteroids
a gamut of games
probability
dates
curvature
royal institution
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