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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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Inverting a matrix
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PhD thesis, chapter 1
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A bad Puzzle for Today
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Braiding, pt. 2
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Optimal Pac-Man
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Electromagnetic Field talk
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Tennis maths
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World Cup stickers
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Countdown probability, pt. 2
Countdown probability
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New machine unfriendly £1 coin, pt. 2
New machine unfriendly £1 coin
2013
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Assorted christmaths
Pointless probability
Jul 2013
"Uncanny" royal coincidence
Raspberry Pi weather station
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Tube map Platonic solids, pt. 2
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Tube map Platonic solids
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Archive
Show me a random blog post
▼ show ▼
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2026
May 2026
World Cup stickers 2026
Apr 2026
A new puzzle every day
Mixing Wordle with other games
Feb 2026
Christmas (2025) is over
2025
Dec 2025
Christmas card 2025
Nov 2025
Christmas (2025) is coming!
Sep 2025
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
2023
▼ show ▼
▲ hide ▲
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 -62+e+gτ-√3 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
programming
arrangement puzzles
frobel
advent calendar
php
game show probability
palindromes
fonts
accuracy
statistics
ucl
pac-man
pi
matt parker
thirteen
braiding
european cup
interpolation
squares
matrix multiplication
golden spiral
bluesky
sound
ternary
quadrilaterals
speed
manchester
javascript
realhats
crosswords
radio 4
errors
turtles
live stream
mathslogicbot
people maths
dataset
signorini conditions
asteroids
warwick
numerical analysis
standard deviation
kings
folding paper
manchester science festival
wordle
chess
datasaurus dozen
databet
simultaneous equations
anscombe's quartet
rust
craft
wave scattering
mean
plastic ratio
video games
guest posts
puzzles
tennis
approximation
determinants
the aperiodical
light
finite group
wool
correlation
runge's phenomenon
electromagnetic field
finite element method
noughts and crosses
rugby
harriss spiral
game of life
mathsjam
weak imposition
dates
mathsteroids
fractals
stickers
go
draughts
exponential growth
matrices
boundary element methods
world cup
gather town
news
cross stitch
hannah fry
hyperbolic surfaces
tmip
cambridge
edinburgh
hexapawn
martin gardner
games
coins
gaussian elimination
error bars
coventry
a gamut of games
matrix of minors
data visualisation
gerry anderson
pascal's triangle
folding tube maps
pythagoras
pizza cutting
london
menace
bots
christmas card
football
dinosaurs
partridge puzzle
numbers
youtube
data
nonograms
crossnumbers
big internet math-off
propositional calculus
graphs
machine learning
sobolev spaces
alphabets
final fantasy
matrix of cofactors
zines
geometry
kenilworth
national lottery
inverse matrices
binary
regular expressions
golden ratio
talking maths in public
captain scarlet
geogebra
computational complexity
crossnumber
chebyshev
logs
pokémon
misleading statistics
royal institution
friendly squares
flexagons
bempp
map projections
royal baby
chalkdust magazine
newcastle
phd
weather station
dragon curves
recursion
convergence
logic
oeis
raspberry pi
tetris
london underground
triangles
stirling numbers
pokémon wordle
probability
trigonometry
preconditioning
pi approximation day
bubble bobble
estimation
arithmetic
polynomials
sport
countdown
nine men's morris
logo
sorting
hats
crochet
latex
python
bodmas
fence posts
curvature
inline code
24 hour maths
graph theory
platonic solids
reuleaux polygons
rhombicuboctahedron
books
christmas
reddit
© Matthew Scroggs 2012–2026
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