mscroggs
.co.uk
mscroggs
.co.uk
blog
puzzles
academic
talks
contact
subscribe
↓ ☰ ↓
subscribe
Loading image...
Comment
Comments
Comments in green were written by me. Comments in blue were not written by me.
2025-12-11
@
Matthew
: ... yes the clues are correct and once you get to the end, a couple of them are redundant. Who knows what I was thinking when I did that.
Matthew
on
/blog/120
×1
2025-12-13
@
Matthew
: Update: I've made some sneaky edits to the clues from tomorrow onwards to remove the redundancy of clues. All will be gradually revealed soon
Matthew
on
/blog/120
2025-12-12
@
Matthew
: Don't worry, we'll still do them all! Thanks!
Seth Cohen
on
/blog/120
Archive
Show me a random blog post
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
electromagnetic field
people maths
matrix of cofactors
folding tube maps
reddit
arrangement puzzles
matt parker
estimation
crossnumber
harriss spiral
mathslogicbot
pizza cutting
inline code
guest posts
weather station
sport
crochet
error bars
binary
matrix of minors
nonograms
stirling numbers
squares
matrices
royal baby
cambridge
sobolev spaces
pi approximation day
coventry
rust
world cup
preconditioning
crossnumbers
chalkdust magazine
ternary
pokémon wordle
data
sorting
stickers
pi
hannah fry
european cup
london underground
live stream
programming
bempp
determinants
standard deviation
final fantasy
runge's phenomenon
news
wordle
football
errors
london
golden ratio
games
raspberry pi
craft
phd
statistics
radio 4
bodmas
gaussian elimination
game show probability
royal institution
kings
numbers
game of life
recursion
bluesky
hexapawn
partridge puzzle
pokémon
dataset
logs
anscombe's quartet
puzzles
propositional calculus
newcastle
advent calendar
python
asteroids
countdown
realhats
latex
go
polynomials
rhombicuboctahedron
captain scarlet
crosswords
talking maths in public
logo
fractals
rugby
databet
finite element method
ucl
fonts
friendly squares
24 hour maths
noughts and crosses
fence posts
misleading statistics
martin gardner
trigonometry
simultaneous equations
mathsteroids
big internet math-off
oeis
wool
javascript
wave scattering
zines
warwick
logic
chess
a gamut of games
php
graph theory
geogebra
bots
braiding
thirteen
tennis
plastic ratio
triangles
pac-man
machine learning
menace
gather town
golden spiral
mean
bubble bobble
matrix multiplication
tetris
map projections
dates
approximation
manchester science festival
hyperbolic surfaces
finite group
pascal's triangle
curvature
computational complexity
folding paper
exponential growth
quadrilaterals
weak imposition
pythagoras
probability
palindromes
coins
nine men's morris
inverse matrices
the aperiodical
convergence
dragon curves
numerical analysis
hats
platonic solids
interpolation
books
draughts
correlation
data visualisation
manchester
datasaurus dozen
tmip
graphs
national lottery
signorini conditions
edinburgh
light
mathsjam
reuleaux polygons
turtles
sound
speed
geometry
video games
frobel
christmas card
alphabets
christmas
arithmetic
cross stitch
gerry anderson
accuracy
dinosaurs
kenilworth
youtube
chebyshev
boundary element methods
flexagons
regular expressions
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
harriss spiral
dragon curves
polynomials
python
craft
flexagons
sport
braiding
logo
warwick
curvature
games
nine men's morris
pokémon
game of life
fonts
data
correlation
raspberry pi
datasaurus dozen
matrices
stickers
chess
pythagoras
24 hour maths
propositional calculus
electromagnetic field
advent calendar
rugby
live stream
boundary element methods
football
anscombe's quartet
weather station
friendly squares
kings
pizza cutting
game show probability
golden ratio
trigonometry
regular expressions
chebyshev
european cup
martin gardner
standard deviation
people maths
pokémon wordle
mathsteroids
interpolation
go
guest posts
ternary
sound
manchester science festival
runge's phenomenon
radio 4
recursion
bots
light
databet
coventry
crochet
signorini conditions
mean
noughts and crosses
mathsjam
weak imposition
bubble bobble
hyperbolic surfaces
pac-man
determinants
inverse matrices
pi approximation day
christmas card
hexapawn
christmas
royal baby
royal institution
matt parker
menace
arithmetic
tmip
crossnumbers
graph theory
news
tennis
draughts
fractals
thirteen
chalkdust magazine
dataset
wool
graphs
exponential growth
captain scarlet
speed
approximation
geometry
cambridge
fence posts
realhats
finite group
finite element method
binary
numerical analysis
map projections
edinburgh
zines
php
folding paper
matrix multiplication
rhombicuboctahedron
hannah fry
errors
javascript
probability
platonic solids
stirling numbers
wave scattering
reddit
dates
cross stitch
preconditioning
bodmas
numbers
gerry anderson
big internet math-off
turtles
rust
crossnumber
mathslogicbot
newcastle
the aperiodical
palindromes
phd
london
crosswords
national lottery
misleading statistics
bempp
gather town
accuracy
ucl
logs
sobolev spaces
latex
countdown
sorting
books
hats
squares
coins
kenilworth
computational complexity
talking maths in public
inline code
final fantasy
world cup
reuleaux polygons
manchester
data visualisation
puzzles
machine learning
logic
estimation
nonograms
video games
oeis
programming
youtube
alphabets
wordle
a gamut of games
asteroids
statistics
tetris
pi
london underground
convergence
partridge puzzle
triangles
geogebra
gaussian elimination
matrix of minors
matrix of cofactors
simultaneous equations
bluesky
dinosaurs
golden spiral
pascal's triangle
plastic ratio
folding tube maps
frobel
quadrilaterals
arrangement puzzles
error bars
© Matthew Scroggs 2012–2026
on /blog/120