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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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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
Feb 2022
Build your own MENACE
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Close encounters of the second kind
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2020
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Dec 2020
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Nov 2020
Christmas (2020) is coming!
Jul 2020
Happy -62+e+gτ-√3 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
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▲ 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
chalkdust magazine
24 hour maths
manchester
video games
map projections
machine learning
pascal's triangle
royal institution
crosswords
football
tennis
palindromes
coins
fonts
captain scarlet
ucl
bluesky
hannah fry
arrangement puzzles
nine men's morris
matrix of minors
matt parker
coventry
triangles
inverse matrices
speed
data visualisation
bots
partridge puzzle
thirteen
crochet
gerry anderson
recursion
simultaneous equations
arithmetic
dinosaurs
asteroids
games
boundary element methods
dataset
estimation
mathsteroids
stickers
london underground
bempp
golden ratio
pi
alphabets
error bars
matrix of cofactors
stirling numbers
sport
trigonometry
tmip
oeis
folding tube maps
radio 4
ternary
finite element method
rugby
martin gardner
misleading statistics
hyperbolic surfaces
matrices
manchester science festival
reddit
weak imposition
numerical analysis
latex
mathslogicbot
fence posts
edinburgh
nonograms
newcastle
graph theory
guest posts
mathsjam
chess
python
platonic solids
zines
advent calendar
logic
kings
reuleaux polygons
draughts
world cup
numbers
graphs
bodmas
inline code
dates
databet
phd
determinants
fractals
wave scattering
statistics
bubble bobble
london
dragon curves
matrix multiplication
wool
talking maths in public
sobolev spaces
data
pythagoras
anscombe's quartet
noughts and crosses
programming
light
propositional calculus
a gamut of games
geometry
craft
royal baby
big internet math-off
quadrilaterals
regular expressions
datasaurus dozen
pokémon
signorini conditions
puzzles
rhombicuboctahedron
hats
polynomials
news
countdown
computational complexity
cambridge
folding paper
final fantasy
game show probability
accuracy
electromagnetic field
rust
menace
crossnumber
interpolation
go
youtube
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tetris
frobel
books
people maths
standard deviation
plastic ratio
friendly squares
mean
raspberry pi
golden spiral
harriss spiral
braiding
kenilworth
curvature
chebyshev
runge's phenomenon
finite group
pokémon wordle
javascript
approximation
flexagons
php
preconditioning
national lottery
game of life
geogebra
live stream
probability
the aperiodical
convergence
weather station
crossnumbers
hexapawn
gaussian elimination
christmas card
realhats
sound
pizza cutting
logs
cross stitch
wordle
errors
binary
pi approximation day
christmas
sorting
gather town
logo
warwick
exponential growth
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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 -62+e+gτ-√3 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
computational complexity
triangles
people maths
latex
electromagnetic field
national lottery
matrix multiplication
royal baby
matrices
statistics
craft
recursion
folding tube maps
hats
tennis
captain scarlet
go
24 hour maths
rhombicuboctahedron
guest posts
machine learning
polynomials
talking maths in public
kenilworth
signorini conditions
nonograms
warwick
wool
estimation
mathsjam
arrangement puzzles
propositional calculus
reddit
coins
geometry
trigonometry
pokémon
raspberry pi
hyperbolic surfaces
numbers
crossnumbers
accuracy
error bars
countdown
news
graphs
fractals
video games
harriss spiral
weather station
nine men's morris
rugby
london
edinburgh
platonic solids
game of life
preconditioning
golden ratio
manchester
newcastle
gerry anderson
plastic ratio
alphabets
sound
mathsteroids
partridge puzzle
pi
cross stitch
dataset
friendly squares
live stream
standard deviation
golden spiral
a gamut of games
programming
stirling numbers
game show probability
databet
sport
logic
sorting
pokémon wordle
dinosaurs
stickers
speed
pythagoras
gaussian elimination
world cup
braiding
squares
tetris
youtube
gather town
pascal's triangle
palindromes
probability
pac-man
javascript
coventry
puzzles
data
exponential growth
finite group
christmas
curvature
folding paper
frobel
approximation
crossnumber
anscombe's quartet
pi approximation day
phd
london underground
chess
regular expressions
manchester science festival
quadrilaterals
bodmas
errors
python
wave scattering
ternary
numerical analysis
oeis
matrix of minors
books
data visualisation
advent calendar
noughts and crosses
draughts
matt parker
inverse matrices
wordle
binary
european cup
christmas card
weak imposition
big internet math-off
crochet
map projections
radio 4
php
arithmetic
bluesky
simultaneous equations
tmip
flexagons
dates
graph theory
fence posts
determinants
boundary element methods
games
asteroids
ucl
sobolev spaces
misleading statistics
royal institution
runge's phenomenon
the aperiodical
rust
finite element method
mean
bempp
cambridge
thirteen
final fantasy
mathslogicbot
pizza cutting
interpolation
menace
convergence
realhats
bubble bobble
light
chalkdust magazine
geogebra
chebyshev
fonts
matrix of cofactors
dragon curves
turtles
datasaurus dozen
kings
zines
martin gardner
logs
football
logo
crosswords
bots
inline code
hexapawn
correlation
reuleaux polygons
hannah fry
© Matthew Scroggs 2012–2026
on /blog/23