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Comments in green were written by me. Comments in blue were not written by me.
2023-12-27
Really enjoyed this years puzzles, Matt! 12 and 14 were favorites as well as the logic "meta-puzzle".
Don
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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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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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Optimal Pac-Man
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Logic bot
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Electromagnetic Field talk
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Tennis maths
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World Cup stickers
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Countdown probability, pt. 2
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New machine unfriendly £1 coin, pt. 2
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Assorted christmaths
Pointless probability
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"Uncanny" royal coincidence
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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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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 ▼
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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 -12+5e-π+√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
video games
dinosaurs
stickers
flexagons
logs
people maths
inline code
chebyshev
dates
cambridge
estimation
gaussian elimination
rust
guest posts
bodmas
trigonometry
wordle
chalkdust magazine
ucl
crochet
a gamut of games
crosswords
craft
chess
turtles
crossnumber
braiding
matrices
recursion
royal baby
logo
mathsjam
dataset
royal institution
phd
convergence
bluesky
anscombe's quartet
coventry
realhats
european cup
light
matt parker
bempp
live stream
weather station
alphabets
accuracy
simultaneous equations
nonograms
runge's phenomenon
advent calendar
harriss spiral
arithmetic
graphs
hyperbolic surfaces
draughts
preconditioning
pascal's triangle
manchester
platonic solids
php
the aperiodical
standard deviation
ternary
graph theory
errors
gerry anderson
squares
christmas
asteroids
zines
reddit
hexapawn
binary
polynomials
books
weak imposition
kings
tmip
approximation
latex
matrix of cofactors
oeis
bots
regular expressions
manchester science festival
kenilworth
sound
gather town
world cup
partridge puzzle
reuleaux polygons
signorini conditions
coins
mean
sorting
pythagoras
folding paper
big internet math-off
interpolation
newcastle
triangles
games
martin gardner
data visualisation
inverse matrices
pac-man
curvature
fonts
determinants
wave scattering
talking maths in public
rhombicuboctahedron
correlation
sobolev spaces
edinburgh
geogebra
frobel
stirling numbers
matrix multiplication
electromagnetic field
golden ratio
24 hour maths
error bars
pokémon wordle
finite group
london underground
folding tube maps
crossnumbers
game show probability
hats
statistics
fractals
pi
countdown
bubble bobble
plastic ratio
exponential growth
arrangement puzzles
christmas card
matrix of minors
wool
menace
palindromes
finite element method
machine learning
national lottery
hannah fry
pi approximation day
go
nine men's morris
python
computational complexity
logic
quadrilaterals
game of life
noughts and crosses
puzzles
fence posts
databet
boundary element methods
datasaurus dozen
pizza cutting
numerical analysis
geometry
captain scarlet
numbers
friendly squares
raspberry pi
tetris
pokémon
data
warwick
golden spiral
youtube
mathslogicbot
football
news
mathsteroids
final fantasy
thirteen
sport
dragon curves
propositional calculus
speed
probability
map projections
rugby
london
tennis
programming
misleading statistics
javascript
cross stitch
radio 4
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