{
  "domain": "mathematics",
  "topics": [
    "algebra"
  ],
  "type": "construction",
  "also": [
    "proof"
  ],
  "source": {
    "key": "kourovka",
    "name": "The Kourovka Notebook",
    "url": "https://kourovkanotebookorg.wordpress.com/wp-content/uploads/2026/10/21tkt-3.pdf#page=106",
    "id": "16.63",
    "curator": "E. I. Khukhro and V. D. Mazurov",
    "poser": "D. MacHale",
    "status": "unsolved; unverified AI solution proposed",
    "as_of": "2026-10-20",
    "catalog": "0521c19bbd38"
  },
  "review": true,
  "approval": "first-time"
}