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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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Log-scaled axes
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PhD thesis, chapter ∞
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PhD thesis, chapter 1
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Proving a conjecture
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Runge's Phenomenon
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A bad Puzzle for Today
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A 20,000-to-1 baby?
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Big Ben Strikes Again
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The importance of estimation error
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Is MEDUSA the new BODMAS?
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Solving the cross diagonal cover problem
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Braiding, pt. 2
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Making names in Life
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Optimal Pac-Man
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Electromagnetic Field talk
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Tennis maths
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Countdown probability, pt. 2
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
Show me a random blog post
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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
partridge puzzle
christmas card
probability
news
noughts and crosses
pizza cutting
dinosaurs
countdown
gather town
simultaneous equations
signorini conditions
inline code
frobel
geometry
puzzles
hyperbolic surfaces
runge's phenomenon
harriss spiral
nine men's morris
numerical analysis
draughts
video games
platonic solids
dataset
stirling numbers
cambridge
wave scattering
light
trigonometry
plastic ratio
regular expressions
matrices
data
asteroids
electromagnetic field
bluesky
a gamut of games
gerry anderson
folding tube maps
machine learning
pokémon
javascript
computational complexity
rugby
sorting
coventry
realhats
games
martin gardner
fence posts
fonts
alphabets
go
royal institution
game of life
chebyshev
python
guest posts
newcastle
convergence
youtube
live stream
fractals
captain scarlet
matrix multiplication
books
craft
pi approximation day
propositional calculus
logs
the aperiodical
boundary element methods
crossnumber
pac-man
zines
bots
world cup
golden ratio
speed
oeis
arithmetic
bubble bobble
mathsteroids
estimation
braiding
friendly squares
manchester science festival
mathslogicbot
databet
bempp
anscombe's quartet
sound
interpolation
triangles
warwick
logo
latex
polynomials
game show probability
preconditioning
programming
final fantasy
ternary
graph theory
nonograms
mean
wool
kenilworth
tmip
dates
bodmas
edinburgh
standard deviation
crossnumbers
people maths
christmas
matt parker
wordle
hats
london
arrangement puzzles
logic
recursion
matrix of cofactors
flexagons
hannah fry
cross stitch
error bars
graphs
menace
data visualisation
sport
advent calendar
chalkdust magazine
quadrilaterals
misleading statistics
exponential growth
determinants
thirteen
php
crochet
errors
phd
folding paper
mathsjam
finite group
pythagoras
datasaurus dozen
radio 4
pascal's triangle
golden spiral
approximation
tennis
dragon curves
turtles
map projections
weather station
statistics
royal baby
reuleaux polygons
coins
binary
numbers
rust
chess
curvature
geogebra
manchester
24 hour maths
accuracy
kings
national lottery
stickers
sobolev spaces
reddit
tetris
rhombicuboctahedron
gaussian elimination
crosswords
inverse matrices
matrix of minors
pokémon wordle
hexapawn
squares
correlation
ucl
finite element method
talking maths in public
raspberry pi
big internet math-off
london underground
european cup
football
palindromes
weak imposition
pi
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