Advent calendar 2017

Archive

Show me a random puzzle

Tags

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