A puzzle based on combinatorial mathematics, which is the study of finite or countable discrete structures.

A puzzle based on combinatorics, which is the study of finite or countable discrete structures. Puzzles where permutations, sets, graphs, lattices, or combinatorial mathematics feature prominently should typically include this tag.

Example: In the wheat and chessboard problem, one places one grain of wheat on the first square, two on the second, four on the third, and so on (doubling the number of grains on each subsequent square). How many grains of wheat would be on the chessboard at the finish?

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