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2022-12-25
Another great set of puzzles! Thank you Matthew.
Don
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2026
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Mixing Wordle with other games
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A nonogram alphabet
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How to write a crossnumber
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2024
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Chalkdust issue 17
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Mathsteroids on hyperbolic surfaces
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The databet
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Off-by-one errors
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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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Close encounters of the second kind
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2020
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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
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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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▲ 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
reuleaux polygons
live stream
pi
wool
speed
matrix multiplication
pokémon
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inverse matrices
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radio 4
gerry anderson
convergence
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final fantasy
crossnumbers
gather town
electromagnetic field
sport
captain scarlet
standard deviation
finite element method
dates
runge's phenomenon
fence posts
errors
craft
world cup
dinosaurs
martin gardner
anscombe's quartet
matrix of minors
polynomials
wordle
frobel
friendly squares
hyperbolic surfaces
nonograms
programming
christmas
matrices
tennis
tmip
geometry
sobolev spaces
advent calendar
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braiding
crossnumber
bluesky
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light
folding tube maps
flexagons
cambridge
weather station
inline code
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talking maths in public
turtles
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ucl
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preconditioning
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realhats
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alphabets
plastic ratio
the aperiodical
oeis
asteroids
coins
zines
statistics
gaussian elimination
chebyshev
stickers
pokémon wordle
royal institution
fractals
signorini conditions
folding paper
quadrilaterals
computational complexity
go
raspberry pi
newcastle
books
draughts
arithmetic
platonic solids
trigonometry
edinburgh
pac-man
noughts and crosses
pizza cutting
thirteen
python
sound
a gamut of games
people maths
triangles
puzzles
kenilworth
big internet math-off
manchester
bodmas
rhombicuboctahedron
golden ratio
manchester science festival
london
national lottery
kings
weak imposition
databet
regular expressions
hannah fry
estimation
24 hour maths
interpolation
stirling numbers
mean
phd
data visualisation
pi approximation day
games
harriss spiral
logic
warwick
php
mathslogicbot
finite group
tetris
mathsjam
approximation
correlation
partridge puzzle
recursion
latex
arrangement puzzles
accuracy
coventry
bempp
wave scattering
menace
bots
propositional calculus
curvature
datasaurus dozen
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hats
palindromes
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sorting
numbers
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javascript
guest posts
graphs
news
binary
youtube
mathsteroids
error bars
geogebra
pythagoras
pascal's triangle
royal baby
rust
misleading statistics
european cup
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squares
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map projections
christmas card
reddit
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dragon curves
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data
cross stitch
logo
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fonts
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
errors
trigonometry
tetris
frobel
wordle
correlation
fractals
graphs
stirling numbers
ternary
computational complexity
tmip
logs
hyperbolic surfaces
crosswords
speed
go
golden spiral
wave scattering
world cup
flexagons
dataset
dates
triangles
mean
hats
signorini conditions
gather town
noughts and crosses
weather station
rust
news
sorting
dragon curves
royal institution
pac-man
big internet math-off
friendly squares
inverse matrices
rugby
kings
pokémon
estimation
matrix of minors
hexapawn
martin gardner
geometry
captain scarlet
partridge puzzle
simultaneous equations
chess
finite group
anscombe's quartet
light
bodmas
statistics
data visualisation
boundary element methods
data
crossnumber
london
php
realhats
zines
asteroids
inline code
machine learning
christmas
bubble bobble
chalkdust magazine
curvature
reuleaux polygons
crossnumbers
standard deviation
accuracy
javascript
fonts
final fantasy
misleading statistics
nonograms
kenilworth
bluesky
christmas card
gaussian elimination
talking maths in public
propositional calculus
phd
thirteen
latex
plastic ratio
datasaurus dozen
platonic solids
video games
quadrilaterals
runge's phenomenon
ucl
sport
logo
numerical analysis
coins
craft
map projections
menace
dinosaurs
manchester
matrix of cofactors
arithmetic
cross stitch
a gamut of games
arrangement puzzles
cambridge
books
binary
programming
football
gerry anderson
braiding
reddit
draughts
graph theory
tennis
the aperiodical
exponential growth
regular expressions
london underground
finite element method
geogebra
approximation
palindromes
folding tube maps
pascal's triangle
live stream
folding paper
people maths
squares
electromagnetic field
fence posts
oeis
warwick
games
polynomials
recursion
edinburgh
pi approximation day
mathslogicbot
game show probability
pizza cutting
golden ratio
national lottery
guest posts
coventry
manchester science festival
hannah fry
harriss spiral
mathsjam
alphabets
european cup
sound
databet
game of life
stickers
wool
convergence
determinants
royal baby
24 hour maths
youtube
pythagoras
bempp
newcastle
matrices
countdown
rhombicuboctahedron
nine men's morris
bots
mathsteroids
logic
crochet
numbers
python
matrix multiplication
sobolev spaces
puzzles
radio 4
error bars
turtles
preconditioning
weak imposition
pokémon wordle
raspberry pi
advent calendar
matt parker
interpolation
pi
chebyshev
probability
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