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Comments in green were written by me. Comments in blue were not written by me.
2016-12-24
Hi Matthew, thx for the wonderful riddles. I still get a 4-digit answer for Dec 3rd, can you help me out? Thanks so much!
Fred
on
/blog/36
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PhD thesis, chapter ∞
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PhD thesis, chapter 1
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A bad Puzzle for Today
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The importance of estimation error
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Braiding, pt. 2
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Electromagnetic Field talk
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Countdown probability
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New machine unfriendly £1 coin, pt. 2
New machine unfriendly £1 coin
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Assorted christmaths
Pointless probability
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"Uncanny" royal coincidence
Raspberry Pi weather station
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Tube map Platonic solids, pt. 2
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Tube map Platonic solids
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Archive
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2026
May 2026
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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 -10+e√2+5√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
stickers
exponential growth
edinburgh
fonts
christmas
golden spiral
friendly squares
newcastle
light
curvature
rugby
inverse matrices
youtube
pizza cutting
pascal's triangle
radio 4
datasaurus dozen
nine men's morris
electromagnetic field
books
hexapawn
finite group
london
php
triangles
captain scarlet
world cup
crosswords
computational complexity
geometry
thirteen
pi approximation day
interpolation
go
european cup
propositional calculus
logo
statistics
crochet
javascript
dates
bubble bobble
crossnumber
matrix multiplication
countdown
craft
gather town
map projections
royal institution
matrices
determinants
sorting
numbers
pokémon wordle
rhombicuboctahedron
weak imposition
realhats
news
runge's phenomenon
manchester
recursion
bempp
accuracy
wool
guest posts
weather station
partridge puzzle
pac-man
mathslogicbot
estimation
london underground
machine learning
python
graphs
chalkdust magazine
manchester science festival
chess
stirling numbers
game of life
puzzles
ternary
geogebra
24 hour maths
palindromes
martin gardner
reuleaux polygons
asteroids
frobel
wordle
raspberry pi
a gamut of games
programming
numerical analysis
misleading statistics
logic
national lottery
ucl
folding tube maps
speed
matt parker
gerry anderson
mathsteroids
data
turtles
matrix of minors
pythagoras
oeis
coventry
probability
braiding
convergence
sound
the aperiodical
dataset
games
christmas card
draughts
warwick
simultaneous equations
hyperbolic surfaces
phd
mathsjam
matrix of cofactors
arrangement puzzles
cambridge
sobolev spaces
menace
alphabets
fractals
logs
royal baby
anscombe's quartet
nonograms
latex
platonic solids
harriss spiral
chebyshev
folding paper
preconditioning
rust
errors
inline code
bluesky
bodmas
kenilworth
pokémon
standard deviation
final fantasy
tmip
pi
tennis
trigonometry
approximation
arithmetic
databet
finite element method
hats
polynomials
people maths
signorini conditions
dragon curves
boundary element methods
data visualisation
crossnumbers
graph theory
fence posts
zines
kings
correlation
big internet math-off
plastic ratio
video games
noughts and crosses
gaussian elimination
hannah fry
sport
regular expressions
quadrilaterals
reddit
flexagons
cross stitch
binary
talking maths in public
wave scattering
golden ratio
game show probability
bots
football
mean
dinosaurs
advent calendar
squares
coins
tetris
live stream
error bars
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