{
  "title": "Tower of Hanoi data card",
  "description": "Data card for the Tower of Hanoi page: name, other names, type, earliest texts read, how it was checked, editorial difficulty, search size and related entries, with the source for each field that has one. Compiled 2026-10-31. License CC BY 4.0.",
  "license": "CC BY 4.0",
  "license_url": "https://creativecommons.org/licenses/by/4.0/",
  "creator": "Puzzles, Charts & Dilemmas",
  "page": "https://puzzleschartsanddilemmas.com/puzzles/tower-of-hanoi/",
  "derived_from": [
    "Édouard Lucas, Récréations mathématiques, vol. 3 (1893), pp. 55-59 (public domain)",
    "Édouard Lucas, Calculating-Machines, The Popular Science Monthly, vol. 26 (1884-85), https://archive.org/details/popularsciencemo26newyuoft (public domain)",
    "Henry Ernest Dudeney, The Canterbury Puzzles (1907), no. 1, https://www.gutenberg.org/ebooks/27635 (public domain)"
  ],
  "method": "Compiled by Puzzles, Charts & Dilemmas from the data listed"
}