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Comments in green were written by me. Comments in blue were not written by me.
2019-12-25
@
Seth
: If you find them on the map then that's all you need to do. (And if you didn't find them yet then the entry form won't appear so you definably did everything you need to do.)
Matthew
on
/blog/69
Archive
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A nonogram alphabet
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How to write a crossnumber
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Friendly squares
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A regular expression Christmas puzzle
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Chalkdust issue 17
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Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
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Off-by-one errors
Christmas card 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
2021
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Dec 2021
Christmas card 2021
Nov 2021
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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
▼ show ▼
▲ hide ▲
Nov 2012
Tube map Platonic solids, pt. 2
Oct 2012
Tube map Platonic solids
Tags
pokémon
game show probability
rust
graph theory
newcastle
programming
data
harriss spiral
error bars
chalkdust magazine
python
computational complexity
ucl
kenilworth
braiding
statistics
youtube
numbers
data visualisation
quadrilaterals
light
mathslogicbot
tmip
platonic solids
zines
curvature
chebyshev
video games
hats
php
probability
london underground
stickers
dragon curves
hexapawn
live stream
pascal's triangle
folding tube maps
dataset
craft
nonograms
folding paper
go
noughts and crosses
bempp
crossnumber
errors
realhats
fonts
talking maths in public
squares
polynomials
geometry
inverse matrices
trigonometry
matrix multiplication
countdown
the aperiodical
24 hour maths
sound
cross stitch
friendly squares
matrices
pokémon wordle
crossnumbers
logs
triangles
arithmetic
runge's phenomenon
frobel
propositional calculus
cambridge
advent calendar
sobolev spaces
javascript
final fantasy
dinosaurs
rhombicuboctahedron
alphabets
asteroids
stirling numbers
machine learning
binary
turtles
bodmas
puzzles
rugby
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ternary
bots
wordle
gather town
pi
captain scarlet
martin gardner
reuleaux polygons
bluesky
inline code
logic
bubble bobble
arrangement puzzles
matrix of cofactors
mean
fractals
sport
golden ratio
kings
a gamut of games
fence posts
finite group
royal institution
weather station
game of life
boundary element methods
databet
signorini conditions
edinburgh
matrix of minors
chess
map projections
interpolation
recursion
weak imposition
big internet math-off
tetris
logo
exponential growth
correlation
hannah fry
sorting
convergence
determinants
matt parker
dates
flexagons
national lottery
phd
european cup
manchester science festival
electromagnetic field
royal baby
menace
manchester
latex
palindromes
geogebra
raspberry pi
misleading statistics
tennis
pi approximation day
nine men's morris
wave scattering
gaussian elimination
mathsjam
books
people maths
pac-man
london
regular expressions
golden spiral
pizza cutting
finite element method
warwick
draughts
pythagoras
simultaneous equations
hyperbolic surfaces
gerry anderson
thirteen
coins
estimation
approximation
partridge puzzle
christmas card
guest posts
graphs
accuracy
coventry
oeis
plastic ratio
wool
reddit
crosswords
news
crochet
datasaurus dozen
football
christmas
numerical analysis
mathsteroids
anscombe's quartet
games
world cup
preconditioning
radio 4
speed
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
final fantasy
errors
talking maths in public
kenilworth
braiding
geogebra
triangles
machine learning
london
matrices
palindromes
gather town
data
exponential growth
mathsteroids
martin gardner
books
turtles
hyperbolic surfaces
databet
golden spiral
signorini conditions
advent calendar
alphabets
fractals
hats
news
arithmetic
nine men's morris
european cup
rust
the aperiodical
propositional calculus
wool
binary
sobolev spaces
light
zines
bodmas
geometry
quadrilaterals
menace
game of life
gaussian elimination
rugby
speed
puzzles
bluesky
wave scattering
tmip
sorting
coventry
game show probability
standard deviation
matt parker
boundary element methods
royal baby
24 hour maths
raspberry pi
ucl
stirling numbers
determinants
crossnumbers
noughts and crosses
crochet
crosswords
sound
cambridge
golden ratio
dragon curves
plastic ratio
error bars
football
mean
matrix multiplication
go
arrangement puzzles
approximation
christmas
anscombe's quartet
reuleaux polygons
christmas card
finite group
electromagnetic field
live stream
simultaneous equations
dinosaurs
weather station
bubble bobble
accuracy
people maths
runge's phenomenon
pokémon wordle
platonic solids
manchester science festival
matrix of minors
pi
captain scarlet
javascript
thirteen
pokémon
chalkdust magazine
video games
gerry anderson
finite element method
nonograms
guest posts
computational complexity
matrix of cofactors
correlation
tennis
chess
crossnumber
weak imposition
craft
preconditioning
php
convergence
datasaurus dozen
graphs
partridge puzzle
flexagons
statistics
hexapawn
pythagoras
pizza cutting
royal institution
hannah fry
inline code
friendly squares
inverse matrices
phd
polynomials
logo
python
asteroids
games
a gamut of games
chebyshev
big internet math-off
oeis
world cup
fonts
radio 4
logic
graph theory
tetris
reddit
youtube
frobel
manchester
national lottery
fence posts
mathsjam
interpolation
pac-man
cross stitch
sport
map projections
bots
mathslogicbot
wordle
harriss spiral
recursion
probability
misleading statistics
trigonometry
coins
bempp
logs
estimation
pi approximation day
programming
latex
rhombicuboctahedron
numerical analysis
london underground
realhats
dates
newcastle
kings
countdown
folding tube maps
squares
curvature
edinburgh
numbers
folding paper
warwick
dataset
draughts
data visualisation
ternary
pascal's triangle
stickers
regular expressions
© Matthew Scroggs 2012–2026
on /blog/69