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Comments in green were written by me. Comments in blue were not written by me.
2022-12-25
This is my third year of working with my son on the puzzles. We really enjoy it! Thanks again.
Liz
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Archive
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2026
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How to write a crossnumber
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A regular expression Christmas puzzle
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Chalkdust issue 17
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Mar 2023
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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Christmas (2021) is over
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May 2021
Close encounters of the second kind
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2020
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Dec 2020
Christmas card 2020
Nov 2020
Christmas (2020) is coming!
Jul 2020
Happy -6+τφ 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
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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
palindromes
final fantasy
matt parker
tennis
folding tube maps
exponential growth
errors
matrix of cofactors
databet
data visualisation
php
approximation
runge's phenomenon
thirteen
dataset
matrices
logs
big internet math-off
raspberry pi
live stream
rugby
programming
light
determinants
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polynomials
harriss spiral
hexapawn
pi approximation day
dates
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pac-man
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dragon curves
bempp
frobel
recursion
games
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talking maths in public
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numbers
rust
go
crosswords
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sound
hats
crochet
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ternary
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countdown
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fractals
rhombicuboctahedron
gerry anderson
platonic solids
anscombe's quartet
electromagnetic field
logo
stickers
chalkdust magazine
accuracy
preconditioning
royal baby
noughts and crosses
matrix of minors
sobolev spaces
latex
pokémon
pythagoras
golden spiral
braiding
squares
computational complexity
correlation
nonograms
london
misleading statistics
national lottery
tetris
pokémon wordle
weak imposition
flexagons
alphabets
coins
golden ratio
hannah fry
video games
arithmetic
london underground
regular expressions
inline code
football
the aperiodical
weather station
javascript
python
ucl
geometry
mathsteroids
realhats
chebyshev
friendly squares
interpolation
binary
partridge puzzle
map projections
edinburgh
logic
pi
finite group
bubble bobble
24 hour maths
guest posts
world cup
a gamut of games
wool
craft
newcastle
captain scarlet
speed
triangles
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inverse matrices
convergence
draughts
oeis
bots
phd
tmip
christmas
mean
chess
curvature
gather town
fence posts
bluesky
wordle
hyperbolic surfaces
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christmas card
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people maths
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mathsjam
statistics
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advent calendar
news
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signorini conditions
puzzles
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 -6+τφ 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
hyperbolic surfaces
captain scarlet
statistics
sobolev spaces
standard deviation
harriss spiral
machine learning
logic
mean
bluesky
royal institution
craft
binary
live stream
anscombe's quartet
stickers
rhombicuboctahedron
preconditioning
countdown
manchester
nonograms
gather town
logs
matrix of cofactors
fonts
menace
bubble bobble
dates
curvature
friendly squares
rust
manchester science festival
interpolation
quadrilaterals
chebyshev
crossnumber
platonic solids
tennis
sound
wool
pac-man
polynomials
advent calendar
javascript
geogebra
sport
map projections
matrix multiplication
partridge puzzle
warwick
radio 4
databet
video games
dragon curves
pi approximation day
fence posts
finite element method
speed
mathslogicbot
convergence
numbers
national lottery
probability
trigonometry
folding paper
bodmas
approximation
tetris
pokémon wordle
24 hour maths
crosswords
go
mathsteroids
datasaurus dozen
misleading statistics
errors
books
phd
error bars
frobel
squares
flexagons
arithmetic
computational complexity
wordle
numerical analysis
latex
youtube
finite group
edinburgh
weak imposition
european cup
puzzles
people maths
zines
christmas card
pokémon
game of life
palindromes
london underground
matrix of minors
big internet math-off
turtles
stirling numbers
reuleaux polygons
weather station
hexapawn
tmip
runge's phenomenon
triangles
chess
graphs
the aperiodical
matrices
hannah fry
crossnumbers
reddit
newcastle
data visualisation
ternary
gerry anderson
christmas
cross stitch
gaussian elimination
folding tube maps
inverse matrices
martin gardner
programming
nine men's morris
a gamut of games
pi
geometry
accuracy
signorini conditions
news
recursion
asteroids
php
talking maths in public
arrangement puzzles
games
pizza cutting
football
estimation
pythagoras
noughts and crosses
sorting
hats
oeis
coventry
dataset
determinants
electromagnetic field
ucl
data
game show probability
final fantasy
bots
rugby
regular expressions
braiding
mathsjam
matt parker
wave scattering
london
coins
draughts
fractals
boundary element methods
plastic ratio
kings
correlation
thirteen
propositional calculus
pascal's triangle
inline code
dinosaurs
simultaneous equations
logo
guest posts
kenilworth
raspberry pi
crochet
world cup
realhats
graph theory
light
golden ratio
bempp
alphabets
royal baby
exponential growth
cambridge
chalkdust magazine
golden spiral
python
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