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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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PhD thesis, chapter ∞
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PhD thesis, chapter 1
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A bad Puzzle for Today
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Optimal Pac-Man
Tube map stellated rhombicuboctahedron
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Logic bot
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Electromagnetic Field talk
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Tennis maths
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World Cup stickers
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Countdown probability, pt. 2
Countdown probability
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New machine unfriendly £1 coin, pt. 2
New machine unfriendly £1 coin
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Assorted christmaths
Pointless probability
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"Uncanny" royal coincidence
Raspberry Pi weather station
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Tube map Platonic solids, pt. 2
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Archive
Show me a random blog post
▼ show ▼
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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 -2+g+π-τ-√2 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
simultaneous equations
quadrilaterals
craft
braiding
sound
football
polynomials
geogebra
electromagnetic field
map projections
royal institution
game show probability
fonts
sport
gaussian elimination
pythagoras
nonograms
reuleaux polygons
final fantasy
boundary element methods
hats
databet
inverse matrices
matrix of cofactors
games
crossnumber
squares
frobel
approximation
fractals
coventry
realhats
national lottery
christmas card
tmip
zines
regular expressions
estimation
gather town
chalkdust magazine
flexagons
captain scarlet
misleading statistics
london
news
logs
tetris
platonic solids
nine men's morris
crochet
dinosaurs
sorting
edinburgh
thirteen
trigonometry
rhombicuboctahedron
fence posts
inline code
anscombe's quartet
rugby
big internet math-off
light
plastic ratio
radio 4
recursion
pokémon
chebyshev
alphabets
interpolation
matrix of minors
weather station
mathslogicbot
draughts
pascal's triangle
finite element method
pi
binary
video games
runge's phenomenon
machine learning
guest posts
world cup
books
live stream
reddit
correlation
datasaurus dozen
people maths
matrices
graph theory
the aperiodical
golden spiral
php
triangles
menace
go
countdown
raspberry pi
a gamut of games
numbers
bodmas
matrix multiplication
wave scattering
folding paper
statistics
latex
pizza cutting
ternary
crosswords
noughts and crosses
tennis
convergence
exponential growth
warwick
graphs
coins
computational complexity
turtles
logic
game of life
stickers
data visualisation
partridge puzzle
folding tube maps
determinants
bluesky
crossnumbers
24 hour maths
wool
finite group
standard deviation
pac-man
pi approximation day
curvature
youtube
logo
javascript
hexapawn
london underground
asteroids
hyperbolic surfaces
signorini conditions
manchester science festival
advent calendar
cambridge
puzzles
programming
talking maths in public
friendly squares
ucl
stirling numbers
wordle
christmas
bempp
dataset
rust
bubble bobble
mathsjam
kings
mean
error bars
errors
bots
pokémon wordle
numerical analysis
hannah fry
matt parker
golden ratio
oeis
probability
geometry
dragon curves
kenilworth
arithmetic
cross stitch
speed
python
arrangement puzzles
dates
gerry anderson
european cup
newcastle
royal baby
sobolev spaces
martin gardner
manchester
accuracy
palindromes
weak imposition
harriss spiral
preconditioning
propositional calculus
chess
phd
mathsteroids
data
© Matthew Scroggs 2012–2026
on /blog/121