mscroggs.co.uk
mscroggs.co.uk

subscribe

Advent calendar 2015

22 December

What is the largest number which cannot be written as the sum of distinct squares?

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021


List of all puzzles

Tags

differentiation elections logic perimeter means matrices tournaments 2d shapes coordinates hexagons rectangles medians sport perfect numbers bases square numbers circles irreducible numbers surds routes prime numbers powers menace pentagons multiples neighbours gerrymandering graphs floors triangle numbers cryptic clues geometric mean consecutive numbers quadrilaterals dodecagons chocolate parabolas advent squares median determinants polygons expansions clocks dominos symmetry unit fractions ave grids square grids multiplication binary mean square roots sums shape sum to infinity the only crossnumber algebra combinatorics digital clocks tangents indices geometric means digital products triangles wordplay lines books trigonometry integration division people maths shapes tiling odd numbers cube numbers factorials complex numbers cryptic crossnumbers scales rugby functions sequences crossnumbers volume addition speed planes probability range fractions ellipses averages regular shapes axes area cards dates numbers grids calculus polynomials albgebra decahedra number spheres digits proportion crosswords christmas numbers probabilty balancing quadratics integers star numbers coins taxicab geometry remainders products chess geometry games consecutive integers even numbers arrows pascal's triangle percentages partitions palindromes time factors doubling angles 3d shapes chalkdust crossnumber sets folding tube maps colouring money dice cubics

Archive

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