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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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2026
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A new puzzle every day
Mixing Wordle with other games
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2025
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The partridge puzzle
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Jun 2025
A nonogram alphabet
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How to write a crossnumber
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Christmas (2024) is over
Friendly squares
2024
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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 2+g-φ-5√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
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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
arrangement puzzles
fence posts
dataset
reddit
partridge puzzle
oeis
turtles
coins
polynomials
flexagons
matrix multiplication
exponential growth
folding tube maps
edinburgh
rhombicuboctahedron
tennis
pokémon
gerry anderson
mathsjam
computational complexity
a gamut of games
bempp
london
coventry
games
recursion
misleading statistics
datasaurus dozen
logs
crossnumbers
finite group
stickers
fractals
kings
captain scarlet
finite element method
matt parker
graph theory
trigonometry
pi approximation day
football
craft
alphabets
speed
matrices
braiding
signorini conditions
24 hour maths
video games
determinants
light
royal baby
hats
rugby
european cup
radio 4
pythagoras
phd
programming
nine men's morris
golden spiral
logic
christmas
game of life
mathslogicbot
fonts
pac-man
game show probability
frobel
cambridge
gather town
pokémon wordle
platonic solids
estimation
approximation
triangles
nonograms
matrix of cofactors
reuleaux polygons
palindromes
statistics
boundary element methods
people maths
sport
cross stitch
crosswords
hexapawn
tmip
guest posts
christmas card
bots
harriss spiral
rust
plastic ratio
numbers
ucl
wordle
hannah fry
london underground
correlation
numerical analysis
kenilworth
chebyshev
dates
quadrilaterals
preconditioning
golden ratio
national lottery
runge's phenomenon
news
wave scattering
accuracy
crochet
friendly squares
graphs
geogebra
sorting
folding paper
puzzles
dragon curves
draughts
binary
simultaneous equations
curvature
mathsteroids
convergence
wool
advent calendar
weather station
live stream
geometry
martin gardner
pizza cutting
data
mean
inline code
squares
probability
inverse matrices
electromagnetic field
weak imposition
latex
machine learning
logo
warwick
python
raspberry pi
youtube
go
php
interpolation
map projections
dinosaurs
matrix of minors
manchester science festival
arithmetic
sobolev spaces
gaussian elimination
chess
error bars
royal institution
manchester
hyperbolic surfaces
pascal's triangle
sound
final fantasy
the aperiodical
world cup
newcastle
ternary
chalkdust magazine
talking maths in public
javascript
stirling numbers
crossnumber
anscombe's quartet
pi
asteroids
zines
realhats
big internet math-off
bluesky
noughts and crosses
standard deviation
errors
books
menace
propositional calculus
data visualisation
regular expressions
bodmas
bubble bobble
thirteen
databet
tetris
countdown
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 2+g-φ-5√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
gerry anderson
bluesky
kenilworth
matt parker
ucl
24 hour maths
zines
friendly squares
light
dataset
programming
hexapawn
manchester
bots
european cup
world cup
big internet math-off
chebyshev
sobolev spaces
datasaurus dozen
realhats
platonic solids
warwick
draughts
python
crossnumbers
coventry
squares
pizza cutting
go
dates
video games
christmas card
coins
football
interpolation
data visualisation
fractals
inverse matrices
games
countdown
reddit
simultaneous equations
mathsteroids
determinants
quadrilaterals
crochet
hyperbolic surfaces
phd
game of life
flexagons
cross stitch
matrix multiplication
matrices
martin gardner
ternary
convergence
rugby
arrangement puzzles
final fantasy
misleading statistics
finite group
data
curvature
estimation
mathslogicbot
boundary element methods
people maths
geogebra
probability
nine men's morris
chess
wordle
numbers
tmip
plastic ratio
trigonometry
finite element method
nonograms
youtube
harriss spiral
correlation
inline code
mean
wool
cambridge
rhombicuboctahedron
rust
recursion
signorini conditions
partridge puzzle
folding tube maps
crossnumber
errors
bempp
national lottery
approximation
graphs
advent calendar
polynomials
game show probability
hats
mathsjam
matrix of minors
javascript
bubble bobble
chalkdust magazine
tetris
accuracy
numerical analysis
electromagnetic field
binary
runge's phenomenon
sorting
error bars
oeis
preconditioning
standard deviation
regular expressions
anscombe's quartet
pokémon
graph theory
fonts
exponential growth
sport
turtles
books
databet
live stream
royal baby
kings
pi
wave scattering
statistics
fence posts
christmas
machine learning
noughts and crosses
palindromes
logo
braiding
newcastle
speed
dinosaurs
latex
edinburgh
craft
alphabets
radio 4
puzzles
dragon curves
frobel
london underground
matrix of cofactors
hannah fry
crosswords
pythagoras
gaussian elimination
golden ratio
guest posts
stirling numbers
reuleaux polygons
a gamut of games
logs
news
sound
folding paper
the aperiodical
bodmas
pascal's triangle
royal institution
propositional calculus
gather town
golden spiral
thirteen
weather station
pokémon wordle
talking maths in public
arithmetic
php
pac-man
pi approximation day
asteroids
captain scarlet
tennis
raspberry pi
logic
computational complexity
stickers
menace
manchester science festival
weak imposition
london
geometry
triangles
map projections
© Matthew Scroggs 2012–2026
on /blog/23