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Comments in green were written by me. Comments in blue were not written by me.
2022-12-25
My dad and I did several of these puzzles together. I am 8 years old, and I figured many of them out. Thank you!
Xena
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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
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Build your own MENACE
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Close encounters of the second kind
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2020
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Christmas (2020) is coming!
Jul 2020
Happy 2+g-φ-5√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
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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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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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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
hyperbolic surfaces
pythagoras
news
noughts and crosses
signorini conditions
braiding
data
oeis
bubble bobble
approximation
runge's phenomenon
crossnumbers
palindromes
machine learning
crosswords
javascript
pi approximation day
hannah fry
convergence
crossnumber
fence posts
numbers
game show probability
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hats
guest posts
reuleaux polygons
geogebra
light
rust
wool
bodmas
tetris
databet
mean
fractals
fonts
datasaurus dozen
pi
mathslogicbot
turtles
manchester science festival
game of life
geometry
graph theory
royal institution
matrices
wave scattering
kings
matt parker
chalkdust magazine
graphs
bempp
cross stitch
pascal's triangle
rhombicuboctahedron
radio 4
go
polynomials
martin gardner
final fantasy
sorting
pokémon wordle
pokémon
edinburgh
quadrilaterals
bots
harriss spiral
electromagnetic field
inverse matrices
pizza cutting
weak imposition
php
regular expressions
books
captain scarlet
rugby
christmas card
warwick
sound
statistics
map projections
advent calendar
platonic solids
recursion
frobel
world cup
menace
nine men's morris
arrangement puzzles
speed
errors
golden ratio
raspberry pi
flexagons
24 hour maths
probability
asteroids
realhats
a gamut of games
wordle
matrix of cofactors
logo
countdown
folding paper
finite group
coins
squares
reddit
logic
trigonometry
european cup
kenilworth
accuracy
dataset
plastic ratio
preconditioning
triangles
correlation
friendly squares
people maths
dates
determinants
error bars
cambridge
video games
sport
national lottery
london underground
anscombe's quartet
newcastle
propositional calculus
standard deviation
draughts
matrix multiplication
logs
the aperiodical
ucl
gerry anderson
simultaneous equations
estimation
sobolev spaces
gather town
programming
latex
binary
misleading statistics
tennis
computational complexity
ternary
pac-man
coventry
chess
christmas
hexapawn
python
gaussian elimination
dinosaurs
curvature
games
matrix of minors
numerical analysis
interpolation
arithmetic
stirling numbers
manchester
dragon curves
golden spiral
live stream
chebyshev
boundary element methods
royal baby
thirteen
craft
alphabets
zines
puzzles
nonograms
tmip
exponential growth
london
talking maths in public
big internet math-off
inline code
football
crochet
phd
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partridge puzzle
finite element method
youtube
mathsteroids
folding tube maps
stickers
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mathsjam
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 2+g-φ-5√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
coventry
simultaneous equations
mathsjam
pizza cutting
chebyshev
graph theory
signorini conditions
approximation
logic
numerical analysis
errors
youtube
sobolev spaces
gaussian elimination
bots
rhombicuboctahedron
big internet math-off
mathsteroids
python
stickers
sound
matrix of minors
convergence
data visualisation
oeis
map projections
world cup
crossnumbers
wool
bempp
correlation
game of life
geogebra
christmas card
weak imposition
javascript
guest posts
squares
anscombe's quartet
misleading statistics
countdown
geometry
london
hannah fry
matrix of cofactors
tetris
weather station
a gamut of games
video games
newcastle
craft
matrix multiplication
numbers
zines
bodmas
pac-man
go
game show probability
probability
databet
pi
kenilworth
raspberry pi
boundary element methods
crossnumber
christmas
reddit
computational complexity
games
matrices
frobel
reuleaux polygons
people maths
preconditioning
pascal's triangle
curvature
edinburgh
finite group
partridge puzzle
24 hour maths
recursion
interpolation
ternary
logo
alphabets
hexapawn
plastic ratio
stirling numbers
puzzles
crosswords
wordle
pokémon wordle
menace
draughts
live stream
pi approximation day
advent calendar
cross stitch
hyperbolic surfaces
sorting
error bars
the aperiodical
fence posts
thirteen
rust
fonts
palindromes
regular expressions
captain scarlet
football
pythagoras
gather town
finite element method
dragon curves
platonic solids
sport
chess
european cup
friendly squares
london underground
determinants
triangles
nine men's morris
harriss spiral
national lottery
dataset
final fantasy
royal baby
runge's phenomenon
golden spiral
standard deviation
nonograms
inverse matrices
latex
datasaurus dozen
braiding
logs
mean
estimation
mathslogicbot
coins
dates
flexagons
speed
rugby
royal institution
warwick
programming
asteroids
folding tube maps
kings
wave scattering
bluesky
arrangement puzzles
manchester science festival
folding paper
gerry anderson
polynomials
propositional calculus
tennis
graphs
radio 4
turtles
noughts and crosses
chalkdust magazine
exponential growth
statistics
manchester
accuracy
arithmetic
tmip
binary
golden ratio
light
talking maths in public
data
quadrilaterals
fractals
news
ucl
crochet
electromagnetic field
martin gardner
phd
cambridge
pokémon
hats
matt parker
trigonometry
php
bubble bobble
realhats
dinosaurs
books
machine learning
inline code
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on /blog/97