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Comments in green were written by me. Comments in blue were not written by me.
2015-12-25
@
asdf
: Five completely correct entries so far. I'll announce the first batch of winners soon...
Matthew
on
/blog/23
Archive
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2026
May 2026
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A new puzzle every day
Mixing Wordle with other games
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Jun 2025
A nonogram alphabet
Mar 2025
How to write a crossnumber
Jan 2025
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Friendly squares
2024
Dec 2024
A regular expression Christmas puzzle
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Zines, pt. 2
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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
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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
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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
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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
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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
▼ 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
a gamut of games
determinants
fonts
news
graph theory
flexagons
matrix of cofactors
squares
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newcastle
kenilworth
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golden ratio
game show probability
dragon curves
rugby
plastic ratio
correlation
numbers
mathsjam
estimation
matt parker
tmip
turtles
manchester science festival
approximation
inline code
graphs
geogebra
partridge puzzle
folding tube maps
crochet
finite element method
mean
frobel
menace
logs
countdown
pokémon wordle
pac-man
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pizza cutting
harriss spiral
dates
braiding
map projections
speed
thirteen
hexapawn
pokémon
guest posts
bubble bobble
realhats
exponential growth
signorini conditions
pascal's triangle
electromagnetic field
talking maths in public
boundary element methods
sound
regular expressions
palindromes
logic
logo
bluesky
live stream
cambridge
draughts
dinosaurs
tetris
martin gardner
chalkdust magazine
mathslogicbot
errors
final fantasy
advent calendar
christmas card
machine learning
london underground
accuracy
latex
platonic solids
standard deviation
simultaneous equations
hannah fry
london
databet
folding paper
phd
rhombicuboctahedron
pythagoras
rust
recursion
golden spiral
sorting
puzzles
zines
matrix of minors
runge's phenomenon
trigonometry
computational complexity
python
light
gaussian elimination
sport
statistics
ucl
dataset
weak imposition
warwick
preconditioning
crosswords
polynomials
reddit
probability
hats
christmas
big internet math-off
ternary
noughts and crosses
stirling numbers
friendly squares
php
royal baby
people maths
the aperiodical
wordle
anscombe's quartet
tennis
game of life
error bars
bodmas
chebyshev
bots
matrix multiplication
reuleaux polygons
arrangement puzzles
gerry anderson
javascript
geometry
curvature
national lottery
kings
matrices
triangles
asteroids
data
wool
coventry
datasaurus dozen
fence posts
captain scarlet
edinburgh
craft
arithmetic
raspberry pi
quadrilaterals
books
go
programming
sobolev spaces
propositional calculus
crossnumber
european cup
interpolation
oeis
manchester
bempp
fractals
finite group
convergence
gather town
cross stitch
coins
wave scattering
pi
24 hour maths
binary
inverse matrices
mathsteroids
youtube
misleading statistics
chess
numerical analysis
radio 4
nine men's morris
alphabets
stickers
weather station
crossnumbers
world cup
pi approximation day
games
hyperbolic surfaces
nonograms
video games
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
error bars
palindromes
christmas
weather station
fonts
geogebra
arithmetic
computational complexity
puzzles
programming
manchester
pac-man
crochet
games
flexagons
logic
football
newcastle
world cup
pizza cutting
determinants
accuracy
boundary element methods
captain scarlet
dataset
european cup
standard deviation
thirteen
geometry
curvature
databet
ucl
kenilworth
friendly squares
pokémon wordle
data visualisation
edinburgh
martin gardner
draughts
interpolation
mathsteroids
pythagoras
coins
books
advent calendar
gather town
graph theory
datasaurus dozen
dinosaurs
hats
stickers
dates
reuleaux polygons
data
youtube
rust
crosswords
squares
wordle
talking maths in public
preconditioning
triangles
dragon curves
phd
logo
tennis
noughts and crosses
inline code
royal baby
bubble bobble
python
london
bempp
signorini conditions
stirling numbers
speed
sorting
convergence
inverse matrices
misleading statistics
london underground
guest posts
cambridge
realhats
24 hour maths
turtles
pascal's triangle
sobolev spaces
javascript
gerry anderson
a gamut of games
braiding
anscombe's quartet
the aperiodical
machine learning
plastic ratio
statistics
mean
wave scattering
trigonometry
kings
hannah fry
golden ratio
mathsjam
rhombicuboctahedron
matrix of minors
ternary
cross stitch
people maths
latex
final fantasy
fractals
golden spiral
map projections
light
chebyshev
matt parker
craft
video games
wool
regular expressions
polynomials
arrangement puzzles
crossnumbers
php
crossnumber
probability
pi
warwick
asteroids
propositional calculus
national lottery
alphabets
hyperbolic surfaces
nonograms
bots
approximation
correlation
pokémon
folding paper
chess
exponential growth
graphs
sound
gaussian elimination
news
quadrilaterals
simultaneous equations
runge's phenomenon
reddit
mathslogicbot
recursion
rugby
tetris
menace
manchester science festival
weak imposition
matrices
nine men's morris
matrix of cofactors
coventry
fence posts
folding tube maps
zines
hexapawn
platonic solids
live stream
matrix multiplication
bluesky
game of life
oeis
royal institution
partridge puzzle
go
electromagnetic field
logs
numbers
raspberry pi
frobel
binary
harriss spiral
chalkdust magazine
bodmas
finite group
sport
finite element method
numerical analysis
tmip
errors
countdown
game show probability
radio 4
big internet math-off
estimation
christmas card
pi approximation day
© Matthew Scroggs 2012–2026
on /blog/23