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Comments in green were written by me. Comments in blue were not written by me.
2025-12-17
Many thanks for your puzzle again this year - I suspect I have run into a similar contradiction to Bob. It may be an interpretation issue. When you say that the answer is not a factor, do you mean any factor or one particular factor?
Larry
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PhD thesis, chapter ∞
PhD thesis, chapter 5
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PhD thesis, chapter 1
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Christmas (2017) is over
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The importance of estimation error
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Is MEDUSA the new BODMAS?
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Christmas (2016) is coming!
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Palindromic dates
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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
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Proving Pythagoras' theorem
Dragon curves
The
Mathematical Games
of Martin Gardner
Jan 2016
Christmas (2015) is over
2015
▼ show ▼
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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
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Optimal Pac-Man
Tube map stellated rhombicuboctahedron
Logic bot, pt. 2
Design your own flexagon
Jan 2015
Tube map Platonic solids, pt. 3
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Electromagnetic Field talk
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Tennis maths
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Countdown probability, pt. 2
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New machine unfriendly £1 coin, pt. 2
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2013
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Assorted christmaths
Pointless probability
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"Uncanny" royal coincidence
Raspberry Pi weather station
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misleading statistics
final fantasy
guest posts
royal baby
oeis
exponential growth
mathsjam
kings
preconditioning
matrix multiplication
folding tube maps
matrix of minors
pascal's triangle
zines
machine learning
youtube
quadrilaterals
weak imposition
the aperiodical
arrangement puzzles
noughts and crosses
programming
christmas card
sobolev spaces
triangles
dinosaurs
fractals
partridge puzzle
crossnumber
dataset
hexapawn
signorini conditions
chalkdust magazine
harriss spiral
rust
advent calendar
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news
tetris
map projections
mean
bubble bobble
warwick
curvature
london
gaussian elimination
pizza cutting
frobel
people maths
numerical analysis
kenilworth
palindromes
reuleaux polygons
recursion
hannah fry
rhombicuboctahedron
crosswords
wool
london underground
a gamut of games
folding paper
wordle
dates
matt parker
manchester
sound
chess
data visualisation
inline code
turtles
logs
convergence
national lottery
boundary element methods
talking maths in public
martin gardner
databet
statistics
nine men's morris
approximation
game of life
craft
live stream
golden spiral
coventry
pythagoras
geogebra
thirteen
computational complexity
speed
chebyshev
bempp
pac-man
fonts
geometry
braiding
squares
manchester science festival
latex
binary
nonograms
newcastle
error bars
sorting
pi approximation day
estimation
draughts
realhats
ternary
anscombe's quartet
gerry anderson
pokémon
stirling numbers
matrices
bots
cambridge
countdown
inverse matrices
weather station
plastic ratio
radio 4
menace
interpolation
crochet
24 hour maths
gather town
royal institution
logic
electromagnetic field
raspberry pi
graphs
puzzles
books
determinants
arithmetic
big internet math-off
datasaurus dozen
pokémon wordle
tennis
data
go
alphabets
european cup
simultaneous equations
tmip
matrix of cofactors
errors
javascript
phd
probability
propositional calculus
polynomials
world cup
light
edinburgh
stickers
bluesky
games
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php
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mathsteroids
platonic solids
bodmas
sport
asteroids
golden ratio
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