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2025-06-09
One day a sentient super general AI is going to stumble upon this page and consider it the origin of life.
Mark Hartnady
on
/blog/19
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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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2025
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A nonogram alphabet
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How to write a crossnumber
Jan 2025
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2024
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A regular expression Christmas puzzle
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Zines
Sep 2023
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May 2023
Chalkdust issue 17
Apr 2023
Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
Jan 2023
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Dec 2022
Off-by-one errors
Christmas card 2022
Nov 2022
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Oct 2022
24 Hour Maths Game Show
Mar 2022
Approximating π
Feb 2022
Build your own MENACE
Jan 2022
Christmas (2021) is over
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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
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Nov 2012
Tube map Platonic solids, pt. 2
Oct 2012
Tube map Platonic solids
Tags
hyperbolic surfaces
sobolev spaces
big internet math-off
mathslogicbot
reuleaux polygons
chebyshev
php
mathsteroids
determinants
sound
kings
numerical analysis
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christmas
folding tube maps
propositional calculus
python
martin gardner
statistics
cross stitch
geometry
standard deviation
crosswords
golden spiral
24 hour maths
tmip
news
football
quadrilaterals
flexagons
matrix of cofactors
arithmetic
nine men's morris
matrix multiplication
pizza cutting
manchester science festival
arrangement puzzles
fence posts
preconditioning
games
data visualisation
coins
approximation
gaussian elimination
countdown
folding paper
nonograms
gerry anderson
the aperiodical
draughts
recursion
ternary
plastic ratio
a gamut of games
finite element method
wordle
bluesky
logic
live stream
runge's phenomenon
light
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partridge puzzle
hannah fry
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london
binary
bodmas
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braiding
mean
wave scattering
bempp
noughts and crosses
golden ratio
stickers
people maths
guest posts
pi
pi approximation day
phd
world cup
simultaneous equations
coventry
matrix of minors
dinosaurs
interpolation
asteroids
fonts
polynomials
latex
royal institution
harriss spiral
chess
game of life
rhombicuboctahedron
royal baby
oeis
curvature
misleading statistics
books
map projections
london underground
dragon curves
geogebra
manchester
radio 4
national lottery
kenilworth
hats
exponential growth
machine learning
speed
realhats
numbers
youtube
databet
graph theory
craft
gather town
edinburgh
bots
crossnumber
menace
pac-man
logs
stirling numbers
regular expressions
anscombe's quartet
raspberry pi
matrices
squares
rugby
errors
talking maths in public
puzzles
weak imposition
programming
mathsjam
pascal's triangle
graphs
platonic solids
turtles
go
datasaurus dozen
hexapawn
triangles
crochet
dates
friendly squares
tetris
matt parker
finite group
tennis
error bars
inverse matrices
javascript
estimation
newcastle
electromagnetic field
probability
fractals
wool
frobel
pokémon wordle
ucl
warwick
inline code
signorini conditions
data
trigonometry
european cup
palindromes
weather station
reddit
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sport
final fantasy
logo
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captain scarlet
video games
advent calendar
convergence
sorting
cambridge
accuracy
rust
correlation
christmas card
crossnumbers
zines
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
christmas card
crossnumber
mathslogicbot
zines
polynomials
oeis
hats
manchester science festival
approximation
datasaurus dozen
big internet math-off
matrix of cofactors
football
accuracy
convergence
pi approximation day
logic
correlation
edinburgh
folding tube maps
error bars
bots
estimation
kenilworth
dragon curves
royal baby
curvature
nonograms
live stream
wave scattering
people maths
european cup
pac-man
platonic solids
ucl
exponential growth
map projections
inline code
finite group
kings
sorting
wordle
errors
databet
mean
pi
stickers
computational complexity
interpolation
finite element method
world cup
hyperbolic surfaces
gerry anderson
captain scarlet
gaussian elimination
the aperiodical
reddit
php
noughts and crosses
data visualisation
sound
programming
pokémon wordle
boundary element methods
statistics
misleading statistics
numbers
matrix of minors
video games
harriss spiral
christmas
logs
realhats
fractals
martin gardner
hexapawn
determinants
geometry
games
data
anscombe's quartet
royal institution
standard deviation
frobel
ternary
light
pokémon
latex
dates
cross stitch
matt parker
cambridge
guest posts
crossnumbers
bluesky
bempp
draughts
asteroids
crosswords
manchester
mathsjam
mathsteroids
fonts
phd
dataset
talking maths in public
simultaneous equations
gather town
game of life
weather station
stirling numbers
national lottery
graphs
bubble bobble
matrices
chebyshev
a gamut of games
arithmetic
chalkdust magazine
chess
countdown
final fantasy
arrangement puzzles
inverse matrices
regular expressions
flexagons
pythagoras
palindromes
rust
advent calendar
alphabets
game show probability
bodmas
tmip
runge's phenomenon
matrix multiplication
propositional calculus
reuleaux polygons
go
sport
speed
signorini conditions
weak imposition
squares
recursion
tennis
coins
javascript
python
trigonometry
preconditioning
raspberry pi
newcastle
london
tetris
nine men's morris
dinosaurs
wool
folding paper
rugby
radio 4
golden ratio
logo
electromagnetic field
machine learning
fence posts
pizza cutting
plastic ratio
books
hannah fry
golden spiral
graph theory
rhombicuboctahedron
probability
braiding
turtles
sobolev spaces
puzzles
youtube
news
crochet
friendly squares
partridge puzzle
quadrilaterals
binary
pascal's triangle
numerical analysis
geogebra
london underground
menace
coventry
24 hour maths
triangles
warwick
craft
thirteen
© Matthew Scroggs 2012–2026
on /blog/19