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Comments in green were written by me. Comments in blue were not written by me.
2017-12-19
@
Matthew
: Thank you for the clarification!
I don't want to spoil the answer for anyone, but my Christmassy picture looks like a
well dressed bird
.
Claudio
on
/blog/47
Archive
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2026
May 2026
World Cup stickers 2026
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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
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Zines, pt. 2
Jan 2024
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2023
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Christmas card 2023
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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 -10+e√2+5√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
▼ show ▼
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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
▼ show ▼
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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
▼ 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
pac-man
estimation
golden ratio
flexagons
wordle
rust
mean
wave scattering
manchester science festival
triangles
kings
numerical analysis
programming
books
manchester
accuracy
noughts and crosses
realhats
weak imposition
sound
thirteen
fonts
pokémon
matrix of minors
arrangement puzzles
london
inline code
squares
latex
hats
oeis
preconditioning
london underground
ucl
christmas card
tmip
matrices
sport
convergence
live stream
javascript
dragon curves
misleading statistics
talking maths in public
stickers
graphs
turtles
propositional calculus
bempp
electromagnetic field
advent calendar
plastic ratio
go
gerry anderson
bots
braiding
guest posts
correlation
polynomials
golden spiral
mathsteroids
video games
puzzles
mathsjam
royal institution
cross stitch
the aperiodical
frobel
alphabets
rugby
hannah fry
logo
data visualisation
speed
signorini conditions
coins
error bars
interpolation
tennis
python
draughts
stirling numbers
dinosaurs
boundary element methods
craft
recursion
rhombicuboctahedron
arithmetic
fractals
dataset
pascal's triangle
determinants
finite element method
hexapawn
logic
runge's phenomenon
binary
matrix of cofactors
chalkdust magazine
royal baby
anscombe's quartet
news
harriss spiral
sorting
crossnumber
warwick
phd
numbers
datasaurus dozen
inverse matrices
european cup
pythagoras
platonic solids
weather station
radio 4
christmas
php
gather town
crosswords
wool
friendly squares
finite group
ternary
crochet
game of life
regular expressions
probability
coventry
newcastle
countdown
matrix multiplication
big internet math-off
logs
machine learning
errors
sobolev spaces
light
national lottery
asteroids
geometry
approximation
pokémon wordle
simultaneous equations
folding paper
fence posts
captain scarlet
tetris
geogebra
chess
mathslogicbot
game show probability
raspberry pi
crossnumbers
edinburgh
pizza cutting
world cup
football
databet
quadrilaterals
computational complexity
statistics
palindromes
pi approximation day
standard deviation
chebyshev
martin gardner
gaussian elimination
reddit
nonograms
people maths
kenilworth
final fantasy
menace
pi
24 hour maths
data
folding tube maps
trigonometry
bluesky
bodmas
reuleaux polygons
bubble bobble
cambridge
dates
graph theory
map projections
nine men's morris
curvature
hyperbolic surfaces
matt parker
zines
a gamut of games
partridge puzzle
youtube
exponential growth
games
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 -10+e√2+5√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
a gamut of games
bubble bobble
gerry anderson
martin gardner
folding paper
realhats
curvature
games
cambridge
rugby
latex
people maths
kenilworth
manchester
machine learning
crosswords
electromagnetic field
go
ucl
christmas card
the aperiodical
bluesky
trigonometry
nonograms
arithmetic
asteroids
databet
chalkdust magazine
weather station
matrix of cofactors
logo
speed
cross stitch
bempp
datasaurus dozen
preconditioning
noughts and crosses
wave scattering
oeis
statistics
python
world cup
graphs
coventry
raspberry pi
nine men's morris
frobel
captain scarlet
finite group
pascal's triangle
bots
matrices
determinants
numbers
platonic solids
rhombicuboctahedron
data visualisation
fonts
stickers
friendly squares
menace
matrix of minors
wordle
tetris
mathsjam
data
hyperbolic surfaces
rust
fractals
european cup
matt parker
map projections
christmas
hexapawn
misleading statistics
fence posts
inverse matrices
accuracy
computational complexity
probability
matrix multiplication
tmip
phd
live stream
dinosaurs
binary
golden ratio
24 hour maths
crossnumber
triangles
error bars
draughts
royal baby
bodmas
arrangement puzzles
estimation
partridge puzzle
propositional calculus
sorting
final fantasy
wool
approximation
pi
london
hannah fry
tennis
golden spiral
finite element method
reuleaux polygons
graph theory
alphabets
pi approximation day
manchester science festival
interpolation
weak imposition
plastic ratio
radio 4
hats
warwick
thirteen
newcastle
video games
programming
game of life
braiding
game show probability
quadrilaterals
logs
gaussian elimination
folding tube maps
books
logic
mean
harriss spiral
advent calendar
dates
chess
chebyshev
errors
dragon curves
pizza cutting
puzzles
turtles
signorini conditions
guest posts
inline code
ternary
pythagoras
zines
sport
countdown
mathsteroids
boundary element methods
mathslogicbot
javascript
reddit
kings
edinburgh
geogebra
numerical analysis
crossnumbers
sound
palindromes
talking maths in public
pokémon
pokémon wordle
youtube
dataset
php
sobolev spaces
runge's phenomenon
squares
flexagons
crochet
light
exponential growth
anscombe's quartet
coins
national lottery
simultaneous equations
london underground
stirling numbers
recursion
big internet math-off
news
pac-man
royal institution
football
gather town
standard deviation
correlation
craft
geometry
polynomials
convergence
regular expressions
© Matthew Scroggs 2012–2026
I don't want to spoil the answer for anyone, but my Christmassy picture looks like a well dressed bird.
on /blog/47