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 2023

Advent calendar 2022

Advent calendar 2021

Advent calendar 2020


List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2024