Advent calendar 2016

Archive

Show me a random puzzle

Tags

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