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2025-12-20
The clue on the 20th is breaking my brain.
Seth Cohen
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/blog/120
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Mathsteroids on hyperbolic surfaces
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The databet
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Off-by-one errors
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24 Hour Maths Game Show
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Approximating π
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Build your own MENACE
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2020
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Jul 2020
Happy -6+τφ 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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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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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
draughts
platonic solids
pi
talking maths in public
bots
wool
pokémon
oeis
preconditioning
dates
quadrilaterals
pi approximation day
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mathsjam
wordle
folding paper
games
coventry
bodmas
flexagons
palindromes
accuracy
standard deviation
martin gardner
football
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gaussian elimination
asteroids
geogebra
curvature
zines
final fantasy
graphs
royal baby
binary
the aperiodical
finite element method
cambridge
frobel
sorting
mathsteroids
friendly squares
partridge puzzle
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logo
light
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news
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books
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warwick
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weak imposition
runge's phenomenon
correlation
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realhats
trigonometry
mathslogicbot
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sobolev spaces
raspberry pi
signorini conditions
stirling numbers
php
graph theory
live stream
golden ratio
newcastle
approximation
phd
game of life
data
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machine learning
error bars
advent calendar
people maths
video games
misleading statistics
thirteen
javascript
hyperbolic surfaces
ucl
interpolation
youtube
crochet
chebyshev
london
anscombe's quartet
chess
crossnumbers
gerry anderson
pokémon wordle
reuleaux polygons
a gamut of games
hats
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finite group
boundary element methods
triangles
logic
countdown
convergence
go
logs
bluesky
coins
game show probability
manchester science festival
christmas card
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tennis
rugby
kings
estimation
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arithmetic
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squares
plastic ratio
dataset
nine men's morris
pascal's triangle
fonts
computational complexity
rust
recursion
braiding
python
matrices
nonograms
data visualisation
determinants
inline code
gather town
24 hour maths
london underground
chalkdust magazine
folding tube maps
captain scarlet
errors
national lottery
weather station
regular expressions
sound
numbers
propositional calculus
edinburgh
pizza cutting
menace
sport
european cup
golden spiral
crossnumber
fractals
databet
pythagoras
matrix multiplication
rhombicuboctahedron
polynomials
guest posts
matt parker
noughts and crosses
world cup
ternary
simultaneous equations
cross stitch
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mean
kenilworth
latex
geometry
puzzles
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craft
matrix of cofactors
inverse matrices
crosswords
stickers
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map projections
turtles
matrix of minors
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 -6+τφ 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
wordle
hyperbolic surfaces
youtube
flexagons
logs
quadrilaterals
folding tube maps
kenilworth
the aperiodical
arrangement puzzles
rugby
matrix of minors
stickers
dragon curves
squares
friendly squares
dataset
thirteen
edinburgh
platonic solids
talking maths in public
braiding
newcastle
partridge puzzle
boundary element methods
dinosaurs
hexapawn
crossnumbers
radio 4
zines
wool
runge's phenomenon
stirling numbers
mathslogicbot
computational complexity
databet
sound
golden spiral
rhombicuboctahedron
chess
pokémon
tennis
pi
binary
matrices
captain scarlet
hats
triangles
draughts
geogebra
weak imposition
logo
sobolev spaces
graph theory
pizza cutting
asteroids
fence posts
inverse matrices
rust
exponential growth
datasaurus dozen
numerical analysis
matrix multiplication
hannah fry
speed
simultaneous equations
pythagoras
christmas card
countdown
machine learning
error bars
ternary
ucl
frobel
logic
dates
mathsjam
royal baby
christmas
london
crosswords
books
pi approximation day
phd
regular expressions
wave scattering
crochet
signorini conditions
folding paper
cambridge
trigonometry
probability
sport
programming
chebyshev
python
graphs
gerry anderson
final fantasy
javascript
european cup
latex
bempp
bots
oeis
manchester science festival
propositional calculus
mean
game of life
standard deviation
fonts
numbers
recursion
bluesky
geometry
matt parker
menace
24 hour maths
turtles
bubble bobble
preconditioning
palindromes
correlation
raspberry pi
go
crossnumber
fractals
approximation
harriss spiral
martin gardner
inline code
tetris
weather station
tmip
video games
finite element method
pokémon wordle
golden ratio
plastic ratio
cross stitch
statistics
anscombe's quartet
advent calendar
polynomials
mathsteroids
noughts and crosses
manchester
reuleaux polygons
coventry
kings
warwick
misleading statistics
data visualisation
people maths
coins
arithmetic
nine men's morris
big internet math-off
news
world cup
gaussian elimination
realhats
interpolation
craft
php
royal institution
games
puzzles
alphabets
map projections
national lottery
sorting
reddit
convergence
live stream
london underground
nonograms
errors
light
football
pascal's triangle
guest posts
accuracy
chalkdust magazine
gather town
game show probability
determinants
curvature
finite group
electromagnetic field
bodmas
a gamut of games
data
matrix of cofactors
pac-man
estimation
© Matthew Scroggs 2012–2026
on /blog/120