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Comments in green were written by me. Comments in blue were not written by me.
2020-12-11
Hi Matthew
If I'm wrong, don't bother to answer, but I suspect there might be an error in the wording of Number 11.
I don't think it's possible to solve it right now.
Cheers
Moss
on
/blog/86
2020-12-11
@
Moss
: You were correct: as you were writing this, I was correcting the puzzle. It should now be correct
Matthew
on
/blog/86
×1
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A regular expression Christmas puzzle
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Christmas (2023) is coming!
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Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
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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
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Approximating π
Feb 2022
Build your own MENACE
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Christmas (2021) is over
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Christmas (2021) is coming!
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Christmas (2020) is over
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Dec 2020
Christmas card 2020
Nov 2020
Christmas (2020) is coming!
Jul 2020
Happy 18+φ+√2 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
matt parker
phd
people maths
realhats
game show probability
arithmetic
electromagnetic field
the aperiodical
correlation
curvature
polynomials
talking maths in public
hats
dates
python
fractals
pi
folding tube maps
statistics
ternary
sound
sport
london underground
world cup
logic
rhombicuboctahedron
crossnumber
gather town
reddit
errors
numerical analysis
gerry anderson
runge's phenomenon
game of life
pascal's triangle
sobolev spaces
boundary element methods
video games
pi approximation day
manchester science festival
mean
exponential growth
latex
computational complexity
final fantasy
matrix multiplication
royal baby
platonic solids
flexagons
map projections
nine men's morris
youtube
chebyshev
menace
newcastle
edinburgh
national lottery
data
geometry
bubble bobble
countdown
triangles
determinants
inverse matrices
christmas card
matrices
dataset
golden ratio
php
manchester
european cup
matrix of cofactors
preconditioning
braiding
anscombe's quartet
logs
recursion
graph theory
sorting
crochet
24 hour maths
graphs
advent calendar
finite element method
numbers
accuracy
live stream
guest posts
gaussian elimination
probability
books
turtles
pythagoras
rugby
misleading statistics
speed
cambridge
reuleaux polygons
ucl
weak imposition
zines
kings
london
chalkdust magazine
standard deviation
estimation
regular expressions
bodmas
asteroids
draughts
dragon curves
geogebra
bempp
mathsteroids
stirling numbers
trigonometry
javascript
friendly squares
hyperbolic surfaces
inline code
news
error bars
cross stitch
binary
programming
plastic ratio
noughts and crosses
a gamut of games
databet
raspberry pi
fonts
martin gardner
chess
radio 4
simultaneous equations
frobel
mathslogicbot
approximation
football
coins
craft
squares
fence posts
tmip
puzzles
convergence
quadrilaterals
machine learning
hannah fry
hexapawn
wave scattering
golden spiral
weather station
signorini conditions
games
pac-man
harriss spiral
bots
propositional calculus
pizza cutting
tennis
captain scarlet
interpolation
datasaurus dozen
wool
royal institution
logo
matrix of minors
folding paper
palindromes
oeis
christmas
dinosaurs
mathsjam
stickers
go
data visualisation
light
finite group
big internet math-off
© Matthew Scroggs 2012–2025
If I'm wrong, don't bother to answer, but I suspect there might be an error in the wording of Number 11.
I don't think it's possible to solve it right now.
Cheers
on /blog/86