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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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Assorted christmaths
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The partridge puzzle
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A nonogram alphabet
Mar 2025
How to write a crossnumber
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Dec 2024
A regular expression Christmas puzzle
Christmas card 2024
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Christmas (2024) is coming!
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Zines, pt. 2
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Christmas (2023) is over
2023
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Dec 2023
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Christmas (2023) is coming!
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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 ▼
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Dec 2022
Off-by-one errors
Christmas card 2022
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Christmas (2022) is coming!
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24 Hour Maths Game Show
Mar 2022
Approximating π
Feb 2022
Build your own MENACE
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Christmas (2021) is over
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▼ show ▼
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Dec 2021
Christmas card 2021
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Christmas (2021) is coming!
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TMiP 2021 puzzle hunt
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Close encounters of the second kind
Jan 2021
Christmas (2020) is over
2020
▼ show ▼
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Dec 2020
Christmas card 2020
Nov 2020
Christmas (2020) is coming!
Jul 2020
Happy -2+tan(√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
partridge puzzle
regular expressions
reddit
christmas
phd
finite element method
weather station
advent calendar
chess
royal institution
bodmas
crochet
the aperiodical
map projections
dates
datasaurus dozen
oeis
zines
chalkdust magazine
stirling numbers
triangles
probability
simultaneous equations
fractals
news
sound
golden ratio
python
books
curvature
machine learning
folding paper
game show probability
cross stitch
football
noughts and crosses
numbers
logo
interpolation
preconditioning
matrices
wave scattering
coins
binary
computational complexity
correlation
tennis
edinburgh
runge's phenomenon
pizza cutting
games
signorini conditions
statistics
warwick
christmas card
guest posts
sorting
dinosaurs
graphs
palindromes
dataset
misleading statistics
turtles
menace
live stream
geogebra
gather town
manchester science festival
hats
final fantasy
hannah fry
london
countdown
trigonometry
coventry
rust
24 hour maths
light
mean
crossnumbers
manchester
recursion
asteroids
matt parker
realhats
standard deviation
golden spiral
convergence
royal baby
nine men's morris
latex
ucl
harriss spiral
tmip
stickers
anscombe's quartet
gerry anderson
bubble bobble
logic
determinants
inverse matrices
weak imposition
raspberry pi
geometry
php
exponential growth
sobolev spaces
pac-man
world cup
arithmetic
hyperbolic surfaces
gaussian elimination
flexagons
bempp
craft
graph theory
captain scarlet
hexapawn
data
game of life
kenilworth
national lottery
draughts
squares
inline code
fence posts
javascript
thirteen
friendly squares
big internet math-off
dragon curves
folding tube maps
programming
data visualisation
sport
go
talking maths in public
radio 4
matrix of minors
ternary
estimation
logs
bots
databet
a gamut of games
matrix of cofactors
fonts
london underground
puzzles
speed
polynomials
martin gardner
pi approximation day
numerical analysis
errors
mathsjam
european cup
crosswords
nonograms
rhombicuboctahedron
chebyshev
people maths
mathsteroids
alphabets
video games
mathslogicbot
rugby
matrix multiplication
crossnumber
approximation
pythagoras
wool
pi
finite group
reuleaux polygons
newcastle
platonic solids
electromagnetic field
braiding
propositional calculus
error bars
youtube
plastic ratio
pascal's triangle
kings
boundary element methods
quadrilaterals
frobel
cambridge
accuracy
© 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