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Comments in green were written by me. Comments in blue were not written by me.
2025-12-24
@
Chad
: What was your wrong answer for #15? I had that one wrong too at first, and it took a kind of sneaky "Oh of course!" insight for me to figure it out.
Seth Cohen
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TMiP 2025 puzzle hunt
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A nonogram alphabet
Mar 2025
How to write a crossnumber
Jan 2025
Christmas (2024) is over
Friendly squares
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Dec 2024
A regular expression Christmas puzzle
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Zines, pt. 2
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Christmas (2023) is coming!
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Chalkdust issue 17
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Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
Jan 2023
Christmas (2022) is over
2022
▼ show ▼
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Dec 2022
Off-by-one errors
Christmas card 2022
Nov 2022
Christmas (2022) is coming!
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24 Hour Maths Game Show
Mar 2022
Approximating π
Feb 2022
Build your own MENACE
Jan 2022
Christmas (2021) is over
2021
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Dec 2021
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Christmas (2021) is coming!
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TMiP 2021 puzzle hunt
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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 -15+3τ-φ-√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
games
edinburgh
crochet
pizza cutting
dinosaurs
data visualisation
crossnumbers
books
speed
hannah fry
royal baby
thirteen
news
mathsteroids
big internet math-off
signorini conditions
manchester science festival
cross stitch
dragon curves
graphs
approximation
wool
realhats
bluesky
regular expressions
bots
go
draughts
pythagoras
pi
interpolation
php
24 hour maths
kenilworth
pi approximation day
royal institution
palindromes
sobolev spaces
logs
national lottery
manchester
inverse matrices
estimation
inline code
bodmas
sound
logo
anscombe's quartet
probability
hexapawn
errors
dataset
live stream
accuracy
raspberry pi
sport
pac-man
statistics
determinants
alphabets
matrix multiplication
programming
game of life
geometry
football
computational complexity
rhombicuboctahedron
triangles
crosswords
platonic solids
the aperiodical
world cup
hyperbolic surfaces
video games
zines
reddit
game show probability
gaussian elimination
simultaneous equations
sorting
advent calendar
ucl
finite element method
phd
frobel
javascript
christmas card
tennis
chebyshev
geogebra
countdown
matrix of minors
mathsjam
latex
martin gardner
ternary
menace
kings
a gamut of games
gather town
matrix of cofactors
tetris
bubble bobble
talking maths in public
pokémon
rust
chess
weather station
puzzles
radio 4
pokémon wordle
partridge puzzle
asteroids
tmip
datasaurus dozen
wordle
plastic ratio
weak imposition
captain scarlet
fence posts
coventry
braiding
matt parker
trigonometry
stirling numbers
mathslogicbot
christmas
nine men's morris
final fantasy
hats
fonts
wave scattering
map projections
quadrilaterals
convergence
coins
warwick
chalkdust magazine
folding tube maps
standard deviation
error bars
cambridge
harriss spiral
oeis
curvature
propositional calculus
numerical analysis
numbers
flexagons
friendly squares
pascal's triangle
machine learning
london
gerry anderson
turtles
golden spiral
polynomials
python
craft
bempp
matrices
binary
recursion
golden ratio
preconditioning
arithmetic
logic
runge's phenomenon
arrangement puzzles
databet
exponential growth
newcastle
european cup
stickers
correlation
electromagnetic field
finite group
graph theory
noughts and crosses
crossnumber
reuleaux polygons
london underground
folding paper
data
rugby
dates
guest posts
nonograms
boundary element methods
youtube
misleading statistics
fractals
light
people maths
squares
mean
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