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Comments in green were written by me. Comments in blue were not written by me.
2025-01-26
Love the statistics! Thanks, again, for making the advent puzzle for us!
Jessica Marsh
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How to write a crossnumber
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Friendly squares
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A regular expression Christmas puzzle
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Chalkdust issue 17
Apr 2023
Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
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Off-by-one errors
Christmas card 2022
Nov 2022
Christmas (2022) is coming!
Oct 2022
24 Hour Maths Game Show
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Approximating π
Feb 2022
Build your own MENACE
Jan 2022
Christmas (2021) is over
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Dec 2021
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Nov 2021
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May 2021
Close encounters of the second kind
Jan 2021
Christmas (2020) is over
2020
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Dec 2020
Christmas card 2020
Nov 2020
Christmas (2020) is coming!
Jul 2020
Happy -3+τ-φ 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
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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
Mar 2019
realhats
Jan 2019
Christmas (2018) is over
2018
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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
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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
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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
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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
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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
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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
frobel
fence posts
pac-man
rhombicuboctahedron
chebyshev
countdown
game show probability
matrix multiplication
datasaurus dozen
flexagons
edinburgh
pi approximation day
arrangement puzzles
logs
finite element method
kenilworth
map projections
harriss spiral
fractals
braiding
bodmas
guest posts
inline code
royal institution
sorting
christmas card
squares
signorini conditions
graph theory
coventry
matrix of minors
finite group
talking maths in public
weather station
approximation
electromagnetic field
turtles
runge's phenomenon
books
sound
menace
light
gaussian elimination
errors
phd
manchester science festival
friendly squares
crochet
hyperbolic surfaces
football
video games
royal baby
tennis
newcastle
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programming
raspberry pi
speed
inverse matrices
trigonometry
noughts and crosses
wordle
sobolev spaces
zines
alphabets
pi
computational complexity
nine men's morris
wave scattering
gather town
data visualisation
london
javascript
partridge puzzle
tetris
preconditioning
games
standard deviation
dragon curves
world cup
data
probability
stirling numbers
geogebra
latex
kings
captain scarlet
interpolation
polynomials
accuracy
national lottery
hexapawn
reuleaux polygons
logo
palindromes
bempp
manchester
ternary
sport
a gamut of games
nonograms
determinants
exponential growth
mean
asteroids
bots
news
ucl
anscombe's quartet
numbers
the aperiodical
game of life
tmip
arithmetic
golden spiral
databet
pokémon
mathsteroids
youtube
pascal's triangle
fonts
crossnumbers
24 hour maths
gerry anderson
misleading statistics
correlation
martin gardner
christmas
recursion
bluesky
final fantasy
matt parker
live stream
wool
thirteen
realhats
propositional calculus
rust
matrices
machine learning
numerical analysis
chalkdust magazine
pokémon wordle
boundary element methods
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cambridge
bubble bobble
stickers
dates
folding tube maps
european cup
quadrilaterals
geometry
cross stitch
warwick
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convergence
platonic solids
oeis
php
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draughts
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graphs
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folding paper
mathslogicbot
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hats
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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 -3+τ-φ 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
gaussian elimination
triangles
the aperiodical
coventry
london
coins
braiding
golden spiral
mathslogicbot
propositional calculus
people maths
exponential growth
realhats
a gamut of games
radio 4
pi
mean
misleading statistics
menace
fonts
recursion
kings
reddit
finite element method
javascript
electromagnetic field
crosswords
books
accuracy
bodmas
sport
big internet math-off
palindromes
binary
youtube
matrix of minors
newcastle
wave scattering
christmas card
ucl
martin gardner
php
geometry
stickers
news
countdown
craft
logs
plastic ratio
games
nine men's morris
ternary
manchester science festival
curvature
error bars
chess
weak imposition
golden ratio
european cup
regular expressions
dates
sobolev spaces
stirling numbers
raspberry pi
dragon curves
reuleaux polygons
graph theory
programming
probability
video games
phd
hats
geogebra
pokémon
statistics
asteroids
partridge puzzle
rhombicuboctahedron
gerry anderson
noughts and crosses
arrangement puzzles
runge's phenomenon
crochet
cross stitch
friendly squares
crossnumbers
computational complexity
live stream
platonic solids
sorting
pac-man
warwick
map projections
errors
wool
light
bots
logic
24 hour maths
dataset
numerical analysis
anscombe's quartet
machine learning
rugby
arithmetic
cambridge
harriss spiral
signorini conditions
football
logo
pokémon wordle
bubble bobble
chebyshev
manchester
game of life
mathsteroids
convergence
simultaneous equations
captain scarlet
weather station
wordle
oeis
bluesky
databet
latex
christmas
guest posts
inverse matrices
fence posts
puzzles
correlation
pizza cutting
crossnumber
determinants
pi approximation day
folding paper
matrix multiplication
graphs
inline code
pythagoras
nonograms
world cup
rust
trigonometry
squares
tmip
quadrilaterals
mathsjam
estimation
hexapawn
flexagons
data
finite group
national lottery
python
final fantasy
go
sound
kenilworth
datasaurus dozen
polynomials
fractals
royal institution
matrix of cofactors
pascal's triangle
tetris
game show probability
dinosaurs
frobel
bempp
thirteen
talking maths in public
zines
speed
boundary element methods
royal baby
alphabets
preconditioning
matrices
chalkdust magazine
folding tube maps
data visualisation
london underground
hannah fry
interpolation
tennis
gather town
edinburgh
matt parker
standard deviation
turtles
advent calendar
hyperbolic surfaces
approximation
numbers
draughts
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