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Comments in green were written by me. Comments in blue were not written by me.
2026-01-18
Will you be posting solutions? I have what is to me an acceptable answer but I think I might be missing a couple of squares
Ewan Leeming
on
/blog/121
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A surprising fact about quadrilaterals
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Log-scaled axes
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PhD thesis, chapter ∞
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Inverting a matrix
PhD thesis, chapter 2
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PhD thesis, chapter 1
Gaussian elimination
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Visualising MENACE's learning
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A non-converging LaTeX document
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Big Internet Math-Off stickers 2019
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Proving a conjecture
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Harriss and other spirals
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realhats
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Christmas cross stitch
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Runge's Phenomenon
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Mathsteroids
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A bad Puzzle for Today
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Building MENACEs for other games
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A 20,000-to-1 baby?
World Cup stickers 2018
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Origins of World War I
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MENACE at Manchester Science Festival
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Big Ben Strikes Again
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The end of coins of constant width
Dragon curves II
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The importance of estimation error
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Is MEDUSA the new BODMAS?
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Logical contradictions
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Tube map kaleidocycles
Jul 2016
Solving the cross diagonal cover problem
Jun 2016
Braiding, pt. 2
Braiding, pt. 1
Making names in Life
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Euro 2016 stickers
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Proving Pythagoras' theorem
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The
Mathematical Games
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How to kick a conversion
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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
wordle
quadrilaterals
tennis
ternary
reddit
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games
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hexapawn
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pokémon wordle
anscombe's quartet
finite group
zines
hats
realhats
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dinosaurs
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books
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mean
crossnumbers
oeis
weak imposition
tmip
triangles
bots
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logic
standard deviation
pi
databet
sound
talking maths in public
nine men's morris
errors
manchester
squares
bempp
gerry anderson
regular expressions
machine learning
bodmas
friendly squares
misleading statistics
data visualisation
correlation
video games
london underground
asteroids
coins
game of life
polynomials
youtube
dataset
nonograms
frobel
cross stitch
stickers
rust
raspberry pi
thirteen
kings
runge's phenomenon
weather station
go
christmas
craft
sorting
plastic ratio
flexagons
simultaneous equations
gather town
approximation
platonic solids
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chalkdust magazine
guest posts
football
folding tube maps
tetris
logo
matrix of minors
folding paper
determinants
game show probability
accuracy
speed
interpolation
logs
matrix of cofactors
stirling numbers
partridge puzzle
turtles
light
exponential growth
trigonometry
mathsjam
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sobolev spaces
24 hour maths
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noughts and crosses
latex
pokémon
a gamut of games
dates
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kenilworth
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 -26+eg 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
chebyshev
sport
martin gardner
logo
electromagnetic field
games
royal baby
sorting
dates
talking maths in public
final fantasy
palindromes
countdown
pythagoras
youtube
convergence
weak imposition
mathsteroids
edinburgh
triangles
zines
christmas
manchester
correlation
matrix of minors
gaussian elimination
kenilworth
dinosaurs
bots
crossnumbers
hannah fry
alphabets
kings
matrix of cofactors
estimation
a gamut of games
european cup
arithmetic
pokémon wordle
hexapawn
wordle
london underground
propositional calculus
people maths
fence posts
trigonometry
standard deviation
pizza cutting
raspberry pi
matrix multiplication
dataset
fractals
finite element method
24 hour maths
asteroids
wool
machine learning
mathsjam
errors
ucl
cross stitch
pokémon
sobolev spaces
bempp
arrangement puzzles
geometry
statistics
sound
reddit
captain scarlet
logs
platonic solids
noughts and crosses
folding tube maps
nonograms
menace
crosswords
preconditioning
interpolation
crochet
boundary element methods
javascript
oeis
geogebra
error bars
world cup
pi
matt parker
live stream
mathslogicbot
golden ratio
puzzles
inverse matrices
databet
manchester science festival
numerical analysis
coventry
data visualisation
royal institution
weather station
harriss spiral
golden spiral
graphs
hyperbolic surfaces
rugby
runge's phenomenon
binary
video games
latex
inline code
mean
speed
exponential growth
radio 4
bodmas
friendly squares
chalkdust magazine
phd
big internet math-off
craft
bluesky
cambridge
game show probability
map projections
tmip
simultaneous equations
pac-man
finite group
go
php
programming
braiding
london
probability
turtles
plastic ratio
logic
hats
computational complexity
tetris
numbers
anscombe's quartet
game of life
football
crossnumber
stirling numbers
thirteen
partridge puzzle
polynomials
wave scattering
light
newcastle
pascal's triangle
coins
christmas card
fonts
datasaurus dozen
ternary
guest posts
determinants
gather town
misleading statistics
folding paper
python
pi approximation day
squares
national lottery
curvature
regular expressions
matrices
draughts
bubble bobble
dragon curves
frobel
stickers
news
reuleaux polygons
gerry anderson
flexagons
warwick
realhats
graph theory
recursion
signorini conditions
rhombicuboctahedron
advent calendar
the aperiodical
tennis
chess
approximation
nine men's morris
data
accuracy
books
quadrilaterals
rust
© Matthew Scroggs 2012–2026
on /blog/121