Advent calendar 2018

Archive

Show me a random puzzle

Tags

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