Puzzle meets YouTube

谜题相关视频

汇集与谜题相关的视频：它们诞生的背景与周边的点子。

Gacha — the invention of the "pity ceiling": how design changed after the complete-gacha ban

After Japan banned complete gacha, how did gacha design evolve? A history of probability and desire, told through the invention of the "pity ceiling."

16-Clue Sudoku

Why Sudoku can't go below 17 clues — a 7-million-hour supercomputer proof

The minimum number of clues a uniquely-solvable Sudoku can have is 17 — and proving it took a supercomputer about 7 million hours. The story behind our 16-clue Sudoku, which can never have a unique solution.

Cointossweeper

Was Minesweeper just luck?

Is Minesweeper really won or lost on luck alone? Chasing that question is what led to Cointossweeper.

Tetris is mathematically doomed to lose

Why an endless run of only S and Z pieces makes Tetris mathematically unwinnable — the idea behind Tetris for Masochists.