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2025-12-20
The clue on the 20th is breaking my brain.
Seth Cohen
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Approximating π
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Happy -10+e√2+5√3 Approximation Day!
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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
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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
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realhats
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Christmas cross stitch
MENACE in fiction
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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
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2017
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Christmas card 2017
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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
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Christmas (2016) is over
Video game surfaces
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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
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2015
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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
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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
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Dec 2013
Assorted christmaths
Pointless probability
Jul 2013
"Uncanny" royal coincidence
Raspberry Pi weather station
2012
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Nov 2012
Tube map Platonic solids, pt. 2
Oct 2012
Tube map Platonic solids
Tags
radio 4
determinants
weather station
gerry anderson
triangles
flexagons
reddit
stirling numbers
hexapawn
inverse matrices
mathsteroids
logo
oeis
geometry
national lottery
pizza cutting
error bars
chebyshev
speed
data visualisation
a gamut of games
frobel
zines
raspberry pi
pythagoras
gaussian elimination
hannah fry
geogebra
matt parker
alphabets
kenilworth
php
rugby
runge's phenomenon
pac-man
bubble bobble
sobolev spaces
quadrilaterals
matrices
cambridge
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nonograms
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inline code
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final fantasy
christmas card
go
curvature
numbers
partridge puzzle
bots
live stream
books
wool
the aperiodical
approximation
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gather town
graphs
errors
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harriss spiral
estimation
fence posts
data
javascript
tennis
manchester
sorting
propositional calculus
signorini conditions
chess
world cup
golden ratio
boundary element methods
regular expressions
fonts
craft
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programming
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dinosaurs
24 hour maths
reuleaux polygons
coins
dates
cross stitch
ucl
newcastle
logs
people maths
ternary
realhats
pascal's triangle
stickers
anscombe's quartet
finite group
computational complexity
bodmas
mathslogicbot
plastic ratio
video games
misleading statistics
squares
advent calendar
mathsjam
polynomials
pokémon
bluesky
thirteen
noughts and crosses
crosswords
london
chalkdust magazine
weak imposition
warwick
preconditioning
electromagnetic field
hats
wave scattering
rhombicuboctahedron
recursion
kings
braiding
fractals
folding paper
probability
youtube
talking maths in public
logic
folding tube maps
hyperbolic surfaces
databet
python
countdown
pi approximation day
games
interpolation
game show probability
royal institution
edinburgh
datasaurus dozen
numerical analysis
sound
guest posts
rust
sport
martin gardner
matrix of cofactors
matrix of minors
coventry
news
correlation
platonic solids
football
machine learning
golden spiral
wordle
statistics
london underground
crossnumber
asteroids
arrangement puzzles
menace
accuracy
tmip
friendly squares
crochet
light
dataset
nine men's morris
european cup
christmas
arithmetic
phd
mean
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pi
map projections
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binary
crossnumbers
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dragon curves
game of life
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captain scarlet
puzzles
royal baby
matrix multiplication
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Archive
Show me a random blog post
▼ show ▼
▲ hide ▲
2026
May 2026
World Cup stickers 2026
Apr 2026
A new puzzle every day
Mixing Wordle with other games
Feb 2026
Christmas (2025) is over
2025
Dec 2025
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 ▼
▲ hide ▲
Dec 2023
Christmas card 2023
Nov 2023
Christmas (2023) is coming!
Zines
Sep 2023
TMiP 2023 puzzle hunt
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 ▼
▲ hide ▲
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
▼ show ▼
▲ hide ▲
Dec 2021
Christmas card 2021
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 -10+e√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
warwick
menace
big internet math-off
games
speed
standard deviation
christmas card
royal baby
a gamut of games
rhombicuboctahedron
talking maths in public
noughts and crosses
polynomials
logic
pizza cutting
triangles
oeis
24 hour maths
crossnumber
reddit
european cup
programming
recursion
wordle
kings
stirling numbers
london
football
finite group
tennis
logs
quadrilaterals
captain scarlet
bempp
pi
datasaurus dozen
frobel
golden spiral
rugby
tetris
puzzles
gerry anderson
databet
reuleaux polygons
pac-man
plastic ratio
graphs
manchester science festival
final fantasy
statistics
matrix of cofactors
edinburgh
turtles
geometry
simultaneous equations
machine learning
squares
approximation
youtube
error bars
exponential growth
thirteen
go
runge's phenomenon
pascal's triangle
gather town
world cup
computational complexity
bubble bobble
pokémon wordle
mathsteroids
arithmetic
javascript
guest posts
game show probability
news
correlation
errors
folding paper
live stream
data
kenilworth
binary
fractals
phd
rust
ternary
flexagons
game of life
php
arrangement puzzles
curvature
mathslogicbot
martin gardner
dragon curves
electromagnetic field
boundary element methods
inverse matrices
fence posts
numerical analysis
fonts
sound
raspberry pi
partridge puzzle
golden ratio
wave scattering
regular expressions
latex
inline code
ucl
graph theory
braiding
matrices
data visualisation
light
pi approximation day
chalkdust magazine
crossnumbers
folding tube maps
bodmas
weak imposition
craft
geogebra
dates
cambridge
python
map projections
mean
newcastle
dataset
dinosaurs
logo
hats
palindromes
anscombe's quartet
cross stitch
hannah fry
interpolation
weather station
asteroids
stickers
matrix multiplication
video games
national lottery
coins
bots
chebyshev
books
estimation
hexapawn
trigonometry
nine men's morris
draughts
probability
pokémon
coventry
radio 4
convergence
accuracy
preconditioning
matrix of minors
nonograms
sorting
london underground
harriss spiral
royal institution
hyperbolic surfaces
christmas
wool
numbers
advent calendar
the aperiodical
crosswords
misleading statistics
tmip
sobolev spaces
zines
crochet
friendly squares
matt parker
sport
determinants
signorini conditions
people maths
alphabets
finite element method
realhats
chess
bluesky
mathsjam
manchester
pythagoras
platonic solids
countdown
gaussian elimination
propositional calculus
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on /blog/120