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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
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A new puzzle every day
Mixing Wordle with other games
Feb 2026
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2025
Dec 2025
Christmas card 2025
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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
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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
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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 -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
▼ 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
simultaneous equations
reddit
raspberry pi
gerry anderson
partridge puzzle
bots
light
christmas card
nine men's morris
thirteen
speed
platonic solids
the aperiodical
graph theory
interpolation
crossnumber
gaussian elimination
pokémon
chess
games
programming
bempp
quadrilaterals
correlation
cambridge
rhombicuboctahedron
captain scarlet
standard deviation
databet
reuleaux polygons
propositional calculus
fractals
anscombe's quartet
game show probability
estimation
flexagons
books
people maths
inline code
noughts and crosses
accuracy
wool
recursion
video games
pizza cutting
geometry
coventry
computational complexity
sport
logo
mathslogicbot
determinants
graphs
sound
misleading statistics
curvature
python
alphabets
crosswords
turtles
game of life
folding tube maps
christmas
probability
craft
arrangement puzzles
runge's phenomenon
pi
numbers
asteroids
edinburgh
big internet math-off
hexapawn
bluesky
ternary
rugby
approximation
convergence
exponential growth
sobolev spaces
golden ratio
mathsjam
countdown
advent calendar
a gamut of games
braiding
mean
pokémon wordle
talking maths in public
guest posts
news
weather station
bodmas
kenilworth
youtube
pac-man
dragon curves
puzzles
dates
data visualisation
matt parker
menace
draughts
fence posts
national lottery
logs
harriss spiral
matrix multiplication
matrix of cofactors
chalkdust magazine
error bars
squares
fonts
coins
final fantasy
boundary element methods
wordle
tennis
regular expressions
royal institution
radio 4
signorini conditions
statistics
live stream
finite group
trigonometry
hats
weak imposition
football
london underground
stirling numbers
rust
go
zines
hannah fry
errors
binary
finite element method
data
ucl
martin gardner
oeis
tetris
dinosaurs
kings
royal baby
hyperbolic surfaces
geogebra
php
cross stitch
arithmetic
logic
machine learning
pascal's triangle
datasaurus dozen
pythagoras
inverse matrices
tmip
nonograms
24 hour maths
manchester science festival
chebyshev
folding paper
realhats
sorting
phd
mathsteroids
newcastle
bubble bobble
crossnumbers
matrix of minors
stickers
javascript
palindromes
european cup
london
pi approximation day
polynomials
world cup
friendly squares
map projections
latex
crochet
dataset
golden spiral
plastic ratio
electromagnetic field
frobel
matrices
preconditioning
warwick
gather town
numerical analysis
manchester
triangles
wave scattering
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
folding tube maps
kings
bempp
mathsteroids
captain scarlet
dragon curves
bots
data
error bars
polynomials
preconditioning
gerry anderson
football
graph theory
pi approximation day
people maths
craft
pizza cutting
london
rugby
numerical analysis
gaussian elimination
programming
correlation
regular expressions
latex
crosswords
hannah fry
coventry
crochet
wool
arithmetic
interpolation
squares
logic
convergence
cambridge
binary
pokémon wordle
platonic solids
mean
bluesky
alphabets
determinants
propositional calculus
news
radio 4
finite element method
signorini conditions
wordle
probability
folding paper
the aperiodical
databet
youtube
newcastle
errors
statistics
arrangement puzzles
pythagoras
thirteen
approximation
matrices
cross stitch
sound
raspberry pi
inverse matrices
tetris
logs
weak imposition
wave scattering
frobel
hexapawn
accuracy
zines
pokémon
geogebra
fractals
royal baby
game of life
palindromes
boundary element methods
misleading statistics
stirling numbers
reuleaux polygons
christmas
turtles
manchester science festival
hyperbolic surfaces
logo
warwick
light
chess
mathslogicbot
sport
golden ratio
world cup
advent calendar
standard deviation
bodmas
inline code
martin gardner
a gamut of games
weather station
reddit
final fantasy
books
kenilworth
triangles
graphs
go
recursion
gather town
nine men's morris
oeis
realhats
geometry
crossnumber
computational complexity
python
menace
live stream
fonts
numbers
edinburgh
pascal's triangle
chebyshev
dinosaurs
runge's phenomenon
electromagnetic field
exponential growth
crossnumbers
estimation
coins
quadrilaterals
ternary
pi
friendly squares
chalkdust magazine
london underground
video games
puzzles
plastic ratio
christmas card
machine learning
simultaneous equations
matt parker
fence posts
asteroids
countdown
braiding
tmip
harriss spiral
partridge puzzle
dataset
hats
sobolev spaces
game show probability
games
sorting
matrix of minors
curvature
24 hour maths
pac-man
flexagons
rhombicuboctahedron
javascript
manchester
trigonometry
european cup
matrix multiplication
map projections
national lottery
matrix of cofactors
guest posts
stickers
datasaurus dozen
big internet math-off
noughts and crosses
nonograms
speed
bubble bobble
phd
royal institution
dates
anscombe's quartet
golden spiral
ucl
draughts
rust
tennis
php
talking maths in public
data visualisation
mathsjam
finite group
© Matthew Scroggs 2012–2026
on /blog/97