mscroggs.co.uk
mscroggs.co.uk

subscribe

Comment

Comments

Comments in green were written by me. Comments in blue were not written by me.
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         
@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   

Archive

Show me a random blog post
 2025 

Mar 2025

How to write a crossnumber

Jan 2025

Christmas (2024) is over
Friendly squares
 2024 
▼ show ▼
 2023 
▼ show ▼
 2022 
▼ show ▼
 2021 
▼ show ▼
 2020 
▼ show ▼
 2019 
▼ show ▼
 2018 
▼ show ▼
 2017 
▼ show ▼
 2016 
▼ show ▼
 2015 
▼ show ▼
 2014 
▼ show ▼
 2013 
▼ show ▼
 2012 
▼ show ▼

Tags

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

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2025