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Comments in green were written by me. Comments in blue were not written by me.
2024-07-31
Incorrect answers are treated is correct.
Looking at the JavaScript code, I found that any value that is a key in the array "regions" is treated as correct for all puzzles.
Lars Nordenström
on
/blog/108
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"Uncanny" royal coincidence
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Tube map Platonic solids, pt. 2
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Archive
Show me a random blog post
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Jun 2025
A nonogram alphabet
Mar 2025
How to write a crossnumber
Jan 2025
Christmas (2024) is over
Friendly squares
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▼ show ▼
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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
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▼ show ▼
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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 -5+g-π 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
python
craft
folding tube maps
advent calendar
misleading statistics
raspberry pi
mathslogicbot
reddit
electromagnetic field
error bars
gaussian elimination
crossnumbers
game of life
pythagoras
kings
simultaneous equations
bots
determinants
cambridge
boundary element methods
captain scarlet
chess
harriss spiral
triangles
cross stitch
dataset
correlation
pac-man
national lottery
convergence
signorini conditions
errors
sorting
accuracy
squares
logic
numbers
football
nonograms
bodmas
php
asteroids
graph theory
video games
braiding
golden ratio
machine learning
live stream
fractals
christmas
data
game show probability
menace
final fantasy
quadrilaterals
chebyshev
phd
matrix multiplication
gerry anderson
fence posts
polynomials
tennis
data visualisation
logs
rhombicuboctahedron
games
guest posts
a gamut of games
realhats
databet
interpolation
wool
map projections
nine men's morris
plastic ratio
london underground
finite group
christmas card
coins
royal institution
mathsteroids
go
curvature
geogebra
gather town
draughts
programming
world cup
exponential growth
datasaurus dozen
bempp
martin gardner
inline code
fonts
news
crossnumber
logo
light
frobel
hats
standard deviation
noughts and crosses
dragon curves
preconditioning
palindromes
books
royal baby
reuleaux polygons
newcastle
bubble bobble
sobolev spaces
radio 4
turtles
finite element method
matt parker
pascal's triangle
mean
zines
big internet math-off
tmip
flexagons
dinosaurs
mathsjam
countdown
london
golden spiral
sound
folding paper
approximation
anscombe's quartet
matrix of minors
recursion
hexapawn
dates
crosswords
geometry
sport
youtube
weak imposition
numerical analysis
manchester
computational complexity
edinburgh
friendly squares
hyperbolic surfaces
propositional calculus
24 hour maths
the aperiodical
matrix of cofactors
graphs
hannah fry
weather station
probability
estimation
pi
ucl
european cup
people maths
ternary
arithmetic
runge's phenomenon
oeis
matrices
statistics
chalkdust magazine
pizza cutting
binary
talking maths in public
manchester science festival
stickers
trigonometry
speed
javascript
puzzles
alphabets
inverse matrices
stirling numbers
pi approximation day
platonic solids
wave scattering
crochet
rugby
regular expressions
latex
© Matthew Scroggs 2012–2025
Looking at the JavaScript code, I found that any value that is a key in the array "regions" is treated as correct for all puzzles.
on /blog/108