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Comments in green were written by me. Comments in blue were not written by me.
2020-12-04
First, thank you for this gift. This was just what I needed to get through my day.
Second, I feel that I did something wrong, I see the picture, but I'm struggling with the fact that I did not color 4 and 13 black. Did I do something wrong?
Tara
on
/blog/87
×1
2020-12-04
@
Tara
: Yes, looks like you may have got an incorrect answer for one of the black puzzles
Matthew
on
/blog/87
×1
×2
×1
×1
×1
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A surprising fact about quadrilaterals
Interesting tautologies
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Log-scaled axes
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PhD thesis, chapter ∞
PhD thesis, chapter 5
PhD thesis, chapter 4
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Inverting a matrix
PhD thesis, chapter 2
Jan 2020
PhD thesis, chapter 1
Gaussian elimination
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Visualising MENACE's learning
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A non-converging LaTeX document
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Big Internet Math-Off stickers 2019
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Proving a conjecture
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Harriss and other spirals
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realhats
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Christmas cross stitch
MENACE in fiction
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Runge's Phenomenon
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World Cup stickers 2018, pt. 3
Mathsteroids
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World Cup stickers 2018, pt. 2
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A bad Puzzle for Today
Apr 2018
Building MENACEs for other games
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A 20,000-to-1 baby?
World Cup stickers 2018
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Origins of World War I
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Big Ben Strikes Again
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The end of coins of constant width
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The importance of estimation error
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Is MEDUSA the new BODMAS?
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Logical contradictions
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Tube map kaleidocycles
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Solving the cross diagonal cover problem
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Braiding, pt. 2
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Making names in Life
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Euro 2016 stickers
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Proving Pythagoras' theorem
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Optimal Pac-Man
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Electromagnetic Field talk
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Tennis maths
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Countdown probability, pt. 2
Countdown probability
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New machine unfriendly £1 coin, pt. 2
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2013
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Assorted christmaths
Pointless probability
Jul 2013
"Uncanny" royal coincidence
Raspberry Pi weather station
2012
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Tube map Platonic solids, pt. 2
Oct 2012
Tube map Platonic solids
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How to write a crossnumber
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A regular expression Christmas puzzle
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Zines, pt. 2
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Christmas (2023) is coming!
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Chalkdust issue 17
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Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
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The databet
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Christmas (2022) is over
2022
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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
Mar 2022
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
2020
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Dec 2020
Christmas card 2020
Nov 2020
Christmas (2020) is coming!
Jul 2020
Happy -9+5e 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
chess
craft
news
matt parker
machine learning
preconditioning
quadrilaterals
crossnumber
chebyshev
php
bots
london
dataset
programming
graph theory
raspberry pi
final fantasy
anscombe's quartet
dragon curves
games
gather town
noughts and crosses
european cup
edinburgh
countdown
phd
inline code
python
trigonometry
wool
finite group
logs
hexapawn
fonts
talking maths in public
bubble bobble
sobolev spaces
youtube
statistics
boundary element methods
bodmas
weather station
inverse matrices
frobel
map projections
crossnumbers
finite element method
rhombicuboctahedron
speed
runge's phenomenon
coins
databet
cambridge
probability
fence posts
standard deviation
manchester
puzzles
manchester science festival
weak imposition
geometry
mathslogicbot
folding paper
regular expressions
nine men's morris
signorini conditions
graphs
estimation
plastic ratio
live stream
christmas
24 hour maths
sound
newcastle
javascript
hats
flexagons
golden spiral
crosswords
pizza cutting
london underground
numbers
sorting
recursion
a gamut of games
electromagnetic field
golden ratio
convergence
go
platonic solids
zines
the aperiodical
reuleaux polygons
accuracy
data
world cup
logic
propositional calculus
chalkdust magazine
stirling numbers
wave scattering
guest posts
friendly squares
hyperbolic surfaces
hannah fry
radio 4
triangles
matrix of minors
logo
determinants
fractals
misleading statistics
computational complexity
menace
draughts
kings
game show probability
video games
squares
captain scarlet
gerry anderson
harriss spiral
matrix of cofactors
pascal's triangle
exponential growth
mathsjam
reddit
christmas card
datasaurus dozen
national lottery
ucl
turtles
oeis
sport
correlation
people maths
data visualisation
tennis
palindromes
matrices
mathsteroids
bempp
football
crochet
interpolation
polynomials
geogebra
gaussian elimination
cross stitch
mean
simultaneous equations
royal baby
dinosaurs
tmip
light
stickers
approximation
asteroids
pi
pi approximation day
martin gardner
books
braiding
binary
big internet math-off
numerical analysis
curvature
realhats
errors
ternary
game of life
pac-man
matrix multiplication
rugby
pythagoras
latex
dates
royal institution
folding tube maps
error bars
advent calendar
arithmetic
© Matthew Scroggs 2012–2025
Second, I feel that I did something wrong, I see the picture, but I'm struggling with the fact that I did not color 4 and 13 black. Did I do something wrong?
on /blog/87