Advent calendar 2017

Archive

Show me a random puzzle

Tags

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