13 December

Each clue in this crossnumber (except 5A) gives a property of that answer that is true of no other answer. For example: 7A is a multiple of 13; but 1A, 3A, 5A, 1D, 2D, 4D, and 6D are all not multiples of 13. No number starts with 0.

Show answer


Show me a random puzzle
 Most recent collections 

Advent calendar 2020

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

List of all puzzles


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


Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2021