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Comments in green were written by me. Comments in blue were not written by me.
2022-12-26
Another year of great puzzles, Matt! I really appreciate it and look forward to working these every year.
Dan Whitman
on
/blog/97
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Archive
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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
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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
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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 -1+π 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
▼ show ▼
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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
kenilworth
regular expressions
friendly squares
bots
platonic solids
finite element method
reddit
javascript
partridge puzzle
raspberry pi
menace
wordle
determinants
weak imposition
geometry
datasaurus dozen
wool
sound
rhombicuboctahedron
nonograms
pokémon
the aperiodical
approximation
royal institution
binary
pac-man
preconditioning
hyperbolic surfaces
matrices
game show probability
numerical analysis
tennis
sobolev spaces
mathsteroids
news
dates
countdown
video games
standard deviation
pythagoras
warwick
games
crossnumbers
flexagons
coins
convergence
plastic ratio
map projections
fence posts
books
realhats
alphabets
manchester
quadrilaterals
crossnumber
error bars
bubble bobble
golden spiral
inverse matrices
estimation
pokémon wordle
advent calendar
anscombe's quartet
trigonometry
ternary
hexapawn
light
ucl
computational complexity
stirling numbers
turtles
squares
frobel
exponential growth
zines
correlation
cross stitch
harriss spiral
php
draughts
recursion
boundary element methods
cambridge
finite group
national lottery
chebyshev
simultaneous equations
polynomials
folding paper
arithmetic
braiding
matrix of minors
data visualisation
oeis
christmas card
manchester science festival
chess
coventry
phd
signorini conditions
noughts and crosses
crochet
logo
chalkdust magazine
rust
gerry anderson
probability
youtube
fonts
machine learning
python
edinburgh
crosswords
dragon curves
matrix of cofactors
palindromes
live stream
tetris
kings
arrangement puzzles
mathslogicbot
craft
london underground
fractals
matrix multiplication
databet
curvature
logic
errors
latex
numbers
world cup
programming
sport
a gamut of games
martin gardner
radio 4
royal baby
gaussian elimination
football
pi
tmip
game of life
london
weather station
golden ratio
thirteen
big internet math-off
reuleaux polygons
interpolation
puzzles
triangles
electromagnetic field
speed
people maths
geogebra
propositional calculus
bempp
misleading statistics
graphs
captain scarlet
gather town
folding tube maps
bluesky
mean
bodmas
sorting
wave scattering
accuracy
graph theory
hannah fry
go
pi approximation day
hats
nine men's morris
stickers
rugby
inline code
christmas
runge's phenomenon
pascal's triangle
dinosaurs
final fantasy
dataset
asteroids
data
matt parker
talking maths in public
logs
newcastle
guest posts
pizza cutting
mathsjam
24 hour maths
european cup
statistics
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 -1+π 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
partridge puzzle
hexapawn
dates
wave scattering
reddit
chess
warwick
approximation
sobolev spaces
golden spiral
gaussian elimination
error bars
chalkdust magazine
numbers
curvature
craft
raspberry pi
reuleaux polygons
dragon curves
pac-man
logs
london
harriss spiral
quadrilaterals
captain scarlet
tennis
ucl
data
draughts
folding paper
edinburgh
convergence
geogebra
gerry anderson
arithmetic
fonts
royal baby
kings
nine men's morris
datasaurus dozen
databet
simultaneous equations
misleading statistics
stickers
binary
trigonometry
bempp
final fantasy
platonic solids
dinosaurs
puzzles
coins
chebyshev
manchester science festival
mathslogicbot
zines
plastic ratio
folding tube maps
thirteen
propositional calculus
nonograms
a gamut of games
manchester
geometry
preconditioning
sorting
pizza cutting
phd
game show probability
youtube
tetris
tmip
london underground
crochet
php
ternary
inverse matrices
oeis
matrix of minors
speed
runge's phenomenon
interpolation
crossnumber
games
wool
live stream
advent calendar
hyperbolic surfaces
finite group
mathsjam
arrangement puzzles
sport
graph theory
bodmas
pi approximation day
weather station
world cup
accuracy
gather town
newcastle
asteroids
probability
martin gardner
squares
turtles
cross stitch
statistics
weak imposition
royal institution
standard deviation
coventry
pokémon
regular expressions
pi
crossnumbers
electromagnetic field
machine learning
numerical analysis
bubble bobble
javascript
fractals
talking maths in public
signorini conditions
latex
24 hour maths
friendly squares
matrix multiplication
determinants
recursion
flexagons
golden ratio
anscombe's quartet
graphs
the aperiodical
bluesky
finite element method
kenilworth
fence posts
inline code
correlation
football
stirling numbers
exponential growth
logic
noughts and crosses
light
go
hannah fry
matrix of cofactors
estimation
dataset
radio 4
palindromes
logo
braiding
bots
pythagoras
guest posts
christmas card
countdown
news
cambridge
hats
data visualisation
errors
matt parker
crosswords
mean
programming
frobel
boundary element methods
people maths
map projections
menace
national lottery
computational complexity
books
rust
wordle
pokémon wordle
alphabets
realhats
game of life
pascal's triangle
christmas
polynomials
rhombicuboctahedron
matrices
big internet math-off
european cup
video games
triangles
python
rugby
mathsteroids
sound
© Matthew Scroggs 2012–2026
on /blog/97