Tiling — AMC & AIME Problems

Practice every real AMC 8, AMC 10, AMC 12, and AIME problem that uses tiling — a combinatorics concept — each with a professionally curated solution, many with a video solution too, from LIVE by Po-Shen Loh. Browse all concepts or the full past-contest archive.

All of these problems are used with official legal permission of the Mathematical Association of America (MAA).

AMC 8

1991 AMC 8 Problem 5 · 2002 AMC 8 Problem 23 · 2004 AMC 8 Problem 15 · 2009 AMC 8 Problem 4 · 2012 AMC 8 Problem 17 · 2018 AMC 8 Problem 9 · 2024 AMC 8 Problem 7 · 2025 AMC 8 Problem 11

More combinatorics concepts

arrangements with restrictionsbasic countingbijectionBurnside’s LemmaCatalan Numbercircular arrangementscombinationscombinatorial gamecomplementary countingcounting integers in a rangecounting intersectionscounting pairscounting regionscounting shapes in figuresderangementsdouble countingfencepost countinggenerating functionsgraph theoryinclusion-exclusionlattice pathsmultiplication principlemultiset permutationspartitions and compositionsPascal’s Trianglepermutationspigeonhole principlerecursive countingstars and barssubsetstree diagramVandermonde’s ConvolutionVenn Diagram