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2023-12-24
Whoaaaa just saw the clue for the 24th. This is gonna be fun to unpack! Definitely a step up from previous years!
Thanks @
Matthew
: and @
Allan Taylor
: for the tips!
Seth Cohen
on
/blog/107
×4
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Archive
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Mixing Wordle with other games
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2025
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The partridge puzzle
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TMiP 2025 puzzle hunt
Jun 2025
A nonogram alphabet
Mar 2025
How to write a crossnumber
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Friendly squares
2024
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A regular expression Christmas puzzle
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Chalkdust issue 17
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Logo Asteroids
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Mathsteroids on hyperbolic surfaces
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The databet
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Off-by-one errors
Christmas card 2022
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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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2021
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Dec 2021
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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 -12+5e-π+√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
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Nov 2012
Tube map Platonic solids, pt. 2
Oct 2012
Tube map Platonic solids
Tags
frobel
determinants
bots
coins
london underground
games
matrix of minors
bempp
pokémon
tmip
fractals
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christmas
matrix of cofactors
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preconditioning
hats
go
graphs
the aperiodical
crosswords
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numbers
rugby
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pi
php
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folding paper
inverse matrices
reddit
inline code
matrix multiplication
harriss spiral
signorini conditions
wool
chalkdust magazine
computational complexity
countdown
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exponential growth
final fantasy
error bars
manchester
stickers
finite element method
manchester science festival
captain scarlet
statistics
wave scattering
news
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craft
thirteen
national lottery
reuleaux polygons
arrangement puzzles
football
weather station
errors
stirling numbers
convergence
dates
people maths
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ucl
cross stitch
a gamut of games
kenilworth
fonts
advent calendar
pokémon wordle
london
chebyshev
crossnumbers
chess
noughts and crosses
menace
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braiding
runge's phenomenon
regular expressions
estimation
sobolev spaces
crochet
trigonometry
curvature
asteroids
programming
logic
anscombe's quartet
24 hour maths
light
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graph theory
simultaneous equations
bluesky
pi approximation day
interpolation
binary
recursion
logs
nonograms
gerry anderson
hexapawn
fence posts
friendly squares
kings
wordle
datasaurus dozen
bubble bobble
coventry
golden ratio
christmas card
sport
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mathslogicbot
world cup
talking maths in public
misleading statistics
martin gardner
guest posts
accuracy
python
realhats
bodmas
partridge puzzle
oeis
nine men's morris
plastic ratio
weak imposition
zines
folding tube maps
geometry
gather town
tetris
approximation
pythagoras
live stream
ternary
logo
boundary element methods
mathsjam
latex
hannah fry
propositional calculus
mathsteroids
radio 4
gaussian elimination
big internet math-off
palindromes
standard deviation
dinosaurs
hyperbolic surfaces
royal baby
golden spiral
game of life
game show probability
warwick
matt parker
draughts
books
triangles
databet
rust
puzzles
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javascript
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pac-man
rhombicuboctahedron
newcastle
dragon curves
phd
data
electromagnetic field
geogebra
tennis
probability
map projections
dataset
raspberry pi
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 -12+5e-π+√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
weather station
curvature
matt parker
24 hour maths
crossnumbers
london
matrix multiplication
frobel
football
manchester
bluesky
thirteen
ternary
logs
bots
crosswords
hexapawn
bempp
graph theory
london underground
crochet
guest posts
javascript
electromagnetic field
final fantasy
advent calendar
sorting
sound
a gamut of games
errors
datasaurus dozen
pascal's triangle
chess
friendly squares
mathslogicbot
graphs
zines
game of life
matrices
news
sport
misleading statistics
big internet math-off
folding paper
determinants
warwick
pizza cutting
rust
correlation
kenilworth
weak imposition
plastic ratio
partridge puzzle
phd
finite element method
manchester science festival
arrangement puzzles
finite group
wave scattering
golden ratio
alphabets
tetris
accuracy
radio 4
binary
countdown
rhombicuboctahedron
cambridge
braiding
squares
menace
chalkdust magazine
regular expressions
talking maths in public
ucl
newcastle
dataset
map projections
signorini conditions
interpolation
world cup
bodmas
pac-man
wordle
go
coventry
realhats
fractals
kings
people maths
databet
stirling numbers
golden spiral
puzzles
hannah fry
approximation
national lottery
the aperiodical
pokémon wordle
pythagoras
speed
hats
sobolev spaces
propositional calculus
machine learning
martin gardner
reuleaux polygons
video games
stickers
live stream
christmas
runge's phenomenon
dragon curves
polynomials
mean
palindromes
turtles
oeis
trigonometry
pokémon
quadrilaterals
games
mathsteroids
christmas card
pi approximation day
edinburgh
exponential growth
nonograms
fence posts
wool
european cup
hyperbolic surfaces
light
convergence
python
cross stitch
royal baby
tennis
pi
standard deviation
computational complexity
platonic solids
books
flexagons
preconditioning
tmip
geometry
coins
youtube
error bars
data visualisation
raspberry pi
asteroids
recursion
logo
inverse matrices
harriss spiral
statistics
programming
gerry anderson
boundary element methods
matrix of minors
arithmetic
nine men's morris
inline code
fonts
royal institution
probability
numbers
latex
crossnumber
rugby
dinosaurs
logic
craft
noughts and crosses
bubble bobble
simultaneous equations
folding tube maps
mathsjam
game show probability
gather town
draughts
anscombe's quartet
chebyshev
dates
estimation
numerical analysis
data
gaussian elimination
captain scarlet
reddit
triangles
geogebra
matrix of cofactors
php
© Matthew Scroggs 2012–2026
Thanks @Matthew: and @Allan Taylor: for the tips!
on /blog/107