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Comments in green were written by me. Comments in blue were not written by me.
2025-12-25
@
Aisha
: Hm, I used exactly the same method for both of these days. I'm not sure if it lends itself to a nice clean formula, but it might! I'll share my approach after the contest is over!
Seth Cohen
on
/blog/120
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"Uncanny" royal coincidence
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Christmas (2025) is coming!
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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
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Christmas (2023) is coming!
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Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
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▼ 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
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Approximating π
Feb 2022
Build your own MENACE
Jan 2022
Christmas (2021) is over
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Dec 2021
Christmas card 2021
Nov 2021
Christmas (2021) is coming!
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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
bempp
mathsteroids
convergence
phd
live stream
approximation
rhombicuboctahedron
errors
menace
databet
python
php
friendly squares
newcastle
pythagoras
chebyshev
captain scarlet
guest posts
map projections
christmas card
matrices
youtube
golden ratio
pizza cutting
stickers
countdown
final fantasy
hats
tetris
rust
zines
binary
game of life
news
error bars
hyperbolic surfaces
video games
radio 4
craft
crochet
stirling numbers
pokémon wordle
noughts and crosses
dataset
flexagons
machine learning
standard deviation
manchester science festival
frobel
reuleaux polygons
crosswords
electromagnetic field
fonts
logs
estimation
london underground
exponential growth
draughts
finite element method
accuracy
gaussian elimination
dates
pascal's triangle
go
triangles
sport
data visualisation
matrix of minors
weak imposition
fractals
warwick
light
nonograms
harriss spiral
mathsjam
speed
simultaneous equations
kings
propositional calculus
polynomials
statistics
partridge puzzle
coins
turtles
geogebra
wordle
royal baby
boundary element methods
football
curvature
reddit
quadrilaterals
alphabets
matrix of cofactors
royal institution
folding paper
bodmas
fence posts
graph theory
hannah fry
palindromes
logo
signorini conditions
the aperiodical
puzzles
logic
thirteen
kenilworth
ucl
pi
computational complexity
martin gardner
games
data
european cup
bubble bobble
interpolation
dragon curves
recursion
tennis
finite group
bluesky
realhats
platonic solids
people maths
pac-man
folding tube maps
numerical analysis
hexapawn
cambridge
rugby
matt parker
javascript
latex
dinosaurs
matrix multiplication
crossnumbers
talking maths in public
braiding
edinburgh
datasaurus dozen
mathslogicbot
chess
london
arithmetic
pi approximation day
determinants
pokémon
probability
chalkdust magazine
bots
tmip
programming
coventry
advent calendar
misleading statistics
wool
wave scattering
nine men's morris
national lottery
asteroids
anscombe's quartet
manchester
gerry anderson
24 hour maths
arrangement puzzles
plastic ratio
geometry
a gamut of games
world cup
sorting
regular expressions
golden spiral
preconditioning
weather station
mean
cross stitch
sound
big internet math-off
trigonometry
christmas
gather town
inverse matrices
correlation
squares
graphs
ternary
game show probability
raspberry pi
books
crossnumber
runge's phenomenon
inline code
oeis
sobolev spaces
numbers
© Matthew Scroggs 2012–2026
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