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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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Log-scaled axes
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PhD thesis, chapter ∞
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A bad Puzzle for Today
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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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Assorted christmaths
Pointless probability
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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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2025
Mar 2025
How to write a crossnumber
Jan 2025
Christmas (2024) is over
Friendly squares
2024
▼ 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
2021
▼ show ▼
▲ hide ▲
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 -21+4e+g√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
pythagoras
palindromes
cambridge
pac-man
edinburgh
preconditioning
hats
weak imposition
london
rhombicuboctahedron
plastic ratio
mean
bempp
inline code
binary
realhats
matrix multiplication
dinosaurs
pascal's triangle
gaussian elimination
data
electromagnetic field
rugby
sport
accuracy
craft
flexagons
graph theory
coins
data visualisation
manchester
stirling numbers
christmas card
books
numbers
game of life
javascript
computational complexity
martin gardner
big internet math-off
map projections
geogebra
machine learning
football
programming
games
crosswords
logic
finite element method
oeis
matt parker
error bars
wool
tennis
crossnumbers
golden ratio
harriss spiral
guest posts
dates
christmas
matrix of cofactors
geometry
signorini conditions
speed
quadrilaterals
errors
mathslogicbot
inverse matrices
newcastle
anscombe's quartet
dataset
probability
braiding
matrices
polynomials
fractals
fonts
interpolation
live stream
manchester science festival
arithmetic
captain scarlet
phd
frobel
golden spiral
european cup
crossnumber
tmip
news
misleading statistics
finite group
trigonometry
people maths
logo
talking maths in public
chalkdust magazine
logs
royal institution
recursion
nine men's morris
bots
sobolev spaces
a gamut of games
triangles
runge's phenomenon
reddit
squares
world cup
final fantasy
go
raspberry pi
reuleaux polygons
noughts and crosses
light
numerical analysis
cross stitch
curvature
hannah fry
standard deviation
chess
gather town
youtube
php
menace
matrix of minors
sorting
weather station
bodmas
advent calendar
exponential growth
ucl
approximation
boundary element methods
mathsjam
radio 4
24 hour maths
folding paper
puzzles
draughts
regular expressions
london underground
crochet
national lottery
turtles
stickers
royal baby
latex
gerry anderson
python
determinants
zines
game show probability
fence posts
asteroids
hyperbolic surfaces
kings
pizza cutting
folding tube maps
statistics
friendly squares
the aperiodical
databet
estimation
correlation
pi
wave scattering
mathsteroids
sound
datasaurus dozen
bubble bobble
propositional calculus
hexapawn
dragon curves
chebyshev
pi approximation day
video games
platonic solids
convergence
countdown
ternary
graphs
simultaneous equations
© 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