mscroggs
.co.uk
mscroggs
.co.uk
blog
puzzles
academic
talks
contact
subscribe
↓ ☰ ↓
Click here to win
prizes
by solving the
mscroggs.co.uk
puzzle Advent calendar.
Click here to win
prizes
by solving the
mscroggs.co.uk
puzzle Advent calendar.
subscribe
Loading image...
Comment
Comments
Comments in green were written by me. Comments in blue were not written by me.
2022-01-08
Thanks for the advert calendar this year.
By the way, in the "Hardest and easiest puzzles" section, 4 out of the 5 links to the puzzles are to the 2020 puzzles instead of the 2021 puzzles
Alex
on
/blog/93
×2
×2
×2
2022-01-09
@
Alex
: Thanks, I've fixed those links
Matthew
on
/blog/93
×2
×2
×2
×2
×2
Archive
Show me a random blog post
2024
Dec 2024
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+2g√2 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
standard deviation
oeis
quadrilaterals
geogebra
finite element method
misleading statistics
24 hour maths
rugby
pi
game show probability
menace
platonic solids
anscombe's quartet
tmip
mean
matrix multiplication
national lottery
graph theory
python
latex
coins
pizza cutting
machine learning
accuracy
preconditioning
video games
wool
plastic ratio
edinburgh
finite group
speed
stickers
crossnumber
crochet
captain scarlet
countdown
matt parker
manchester science festival
golden ratio
the aperiodical
recursion
dinosaurs
trigonometry
fence posts
talking maths in public
go
golden spiral
zines
geometry
map projections
radio 4
error bars
probability
php
mathsteroids
weather station
logic
phd
martin gardner
triangles
a gamut of games
realhats
pythagoras
fonts
ucl
advent calendar
pascal's triangle
data
signorini conditions
live stream
bots
frobel
game of life
wave scattering
christmas
turtles
weak imposition
electromagnetic field
sobolev spaces
pac-man
draughts
inline code
flexagons
palindromes
hats
news
dates
datasaurus dozen
london underground
hannah fry
computational complexity
numerical analysis
chess
stirling numbers
puzzles
arithmetic
dragon curves
big internet math-off
asteroids
pi approximation day
chalkdust magazine
simultaneous equations
tennis
dataset
numbers
bodmas
raspberry pi
chebyshev
mathsjam
folding tube maps
graphs
reuleaux polygons
noughts and crosses
european cup
reddit
final fantasy
databet
logo
data visualisation
games
squares
hexapawn
royal baby
inverse matrices
gather town
cross stitch
correlation
braiding
people maths
harriss spiral
mathslogicbot
books
javascript
runge's phenomenon
matrices
approximation
binary
interpolation
cambridge
london
rhombicuboctahedron
matrix of minors
youtube
matrix of cofactors
world cup
gerry anderson
exponential growth
statistics
light
gaussian elimination
nine men's morris
errors
guest posts
christmas card
craft
polynomials
boundary element methods
sport
fractals
folding paper
convergence
ternary
manchester
royal institution
programming
logs
hyperbolic surfaces
sorting
bempp
curvature
sound
newcastle
estimation
bubble bobble
determinants
propositional calculus
football
Archive
Show me a random blog post
▼ show ▼
▲ hide ▲
2024
Dec 2024
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+2g√2 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
frobel
runge's phenomenon
24 hour maths
propositional calculus
hexapawn
triangles
weather station
hannah fry
talking maths in public
pythagoras
cambridge
raspberry pi
estimation
matrix multiplication
news
computational complexity
ternary
plastic ratio
london underground
graphs
error bars
exponential growth
dates
sound
tmip
probability
weak imposition
fence posts
coins
zines
big internet math-off
national lottery
logs
determinants
fractals
interpolation
hats
a gamut of games
cross stitch
rugby
bempp
nine men's morris
puzzles
bubble bobble
mathslogicbot
numbers
geogebra
draughts
datasaurus dozen
ucl
turtles
the aperiodical
pizza cutting
realhats
christmas
video games
trigonometry
chess
phd
python
finite element method
flexagons
edinburgh
matrices
football
signorini conditions
programming
speed
statistics
reddit
books
matrix of minors
games
light
youtube
oeis
misleading statistics
mean
binary
standard deviation
javascript
chebyshev
pascal's triangle
craft
squares
reuleaux polygons
gerry anderson
game of life
recursion
london
stickers
crochet
gather town
php
errors
countdown
inverse matrices
golden spiral
chalkdust magazine
folding paper
quadrilaterals
sobolev spaces
wave scattering
dinosaurs
people maths
finite group
captain scarlet
approximation
preconditioning
graph theory
pac-man
noughts and crosses
manchester
matrix of cofactors
mathsjam
data
electromagnetic field
boundary element methods
data visualisation
sport
world cup
bodmas
guest posts
dragon curves
gaussian elimination
hyperbolic surfaces
sorting
machine learning
latex
royal institution
live stream
bots
braiding
logo
asteroids
stirling numbers
tennis
arithmetic
correlation
christmas card
martin gardner
geometry
curvature
polynomials
anscombe's quartet
radio 4
matt parker
logic
rhombicuboctahedron
folding tube maps
harriss spiral
databet
mathsteroids
manchester science festival
crossnumber
golden ratio
pi
convergence
simultaneous equations
final fantasy
advent calendar
menace
fonts
european cup
royal baby
platonic solids
go
accuracy
game show probability
map projections
dataset
inline code
pi approximation day
palindromes
newcastle
wool
numerical analysis
© Matthew Scroggs 2012–2024
By the way, in the "Hardest and easiest puzzles" section, 4 out of the 5 links to the puzzles are to the 2020 puzzles instead of the 2021 puzzles
on /blog/93