{
  "id": 404,
  "alphabet_id": 23,
  "alphabet": [0,1,2,3,4,5,6],
  "length": 847,
  "previous_length": 836,
  "word": [5,0,6,3,5,0,5,1,3,1,5,0,2,0,1,3,6,2,3,0,1,3,2,0,3,5,6,4,6,0,3,2,0,3,5,6,4,6,5,2,6,2,4,0,4,3,6,0,3,1,0,1,5,3,0,6,4,6,1,2,1,5,6,4,5,6,1,6,3,2,3,4,6,2,6,4,5,6,5,3,6,4,2,6,4,3,4,1,5,1,0,1,3,0,6,2,6,4,5,1,5,6,4,3,6,5,6,4,6,5,1,4,0,1,5,0,5,6,5,2,6,0,1,4,1,0,2,0,1,5,0,3,1,3,6,0,2,1,2,6,5,6,2,4,0,5,1,5,6,4,3,6,0,6,3,5,6,0,1,0,6,4,0,1,5,0,3,1,0,6,3,2,0,3,1,0,2,1,4,0,3,0,1,0,4,6,5,3,5,6,4,5,3,0,4,0,3,6,4,2,1,2,5,3,0,3,6,0,2,5,3,6,0,6,2,6,5,4,6,5,3,6,5,2,0,1,0,5,2,4,5,3,2,5,3,1,4,2,1,0,2,1,3,4,5,0,4,3,0,3,2,6,2,5,6,3,5,6,0,6,1,0,3,2,3,0,1,3,6,2,4,6,5,3,6,5,6,4,6,1,6,3,6,0,6,5,2,4,0,2,6,2,0,5,6,4,5,6,2,4,6,5,6,4,6,3,5,3,1,6,5,3,4,6,3,6,2,3,4,2,0,2,1,6,3,6,2,4,6,3,5,6,3,0,5,2,4,5,4,6,5,6,2,4,3,4,6,2,5,1,4,0,3,0,1,4,1,0,3,2,3,0,6,4,6,5,1,6,3,0,1,4,0,2,5,6,4,2,5,0,5,1,5,6,4,6,5,3,4,5,6,0,2,0,5,4,3,4,0,5,4,5,6,1,2,0,2,6,2,5,2,0,4,6,1,0,2,0,1,0,5,0,2,6,0,5,0,6,1,0,3,6,5,3,4,0,5,4,6,4,5,3,0,2,5,6,4,0,1,0,2,1,4,0,1,2,3,6,0,6,2,6,0,3,1,0,5,1,0,2,3,0,4,6,0,5,0,2,4,0,1,0,2,0,1,0,5,0,1,6,0,3,1,5,1,0,5,6,0,2,1,0,1,4,0,2,4,6,4,2,3,6,2,4,0,1,0,2,0,1,5,0,2,0,5,3,1,4,2,0,5,1,6,2,6,1,6,5,6,3,5,1,4,5,4,3,2,0,1,0,5,6,0,2,6,5,6,4,0,1,5,3,4,1,0,2,1,4,0,1,0,2,0,5,6,4,5,6,0,1,2,6,5,6,0,4,6,3,5,0,4,0,5,2,1,3,2,4,3,5,4,1,3,5,6,4,6,5,6,4,3,5,3,4,2,4,1,2,6,0,6,5,6,3,1,4,3,4,0,1,2,1,6,1,0,6,4,3,5,3,4,0,1,5,2,1,2,4,5,6,4,6,3,1,6,2,6,4,5,0,1,3,4,6,5,6,1,6,3,5,6,3,4,6,5,4,0,4,6,5,1,6,5,4,5,6,1,3,0,6,1,6,0,4,6,5,4,2,4,1,0,3,1,4,3,6,5,1,6,3,6,5,0,3,6,5,2,5,6,4,6,0,4,5,2,1,2,6,5,2,3,6,5,3,5,0,2,1,0,1,3,6,3,0,2,6,4,2,4,0,5,3,6,5,6,4,0,4,6,1,3,0,2,5,3,2,1,5,1,6,5,1,0,2,0,1,3,1,5,0,2,1,0,5,3,4,5,1,5,4,6,4,2,1,2,5,4,0,2,5,0,3,1,6,4,5,3,5,4,6,5,4,1,3,5,0,1,3,5,2,1,0,1,3,2,4,3,5,6,0,5,4,6,4,5,2,5,0,4,0,2,0,3,6,5,6,4],
  "submitter": "David Renshaw",
  "created_at": "2026-08-26 20:30:50",
  "comments": [
    {
      "author": "David Renshaw",
      "created_at": "2026-08-26 20:30:51",
      "content": "Developed a coordinated block-rewrite graph search after proving word 298 was locally rigid: it had no legal append, no valid insertion, and zero valid one-symbol replacements. Starting from the reversed 836-word, equal-length 2-20-symbol rewrites traversed valid states until an appendable state produced 837. Alternating exact tail-release then reached 838; the next rewrite/release generation produced four distinct 839-words, two of which extended greedily through 847. I continued with a final six-worker graph wave (about 34,000 rewrite iterations) plus four exact-release workers (about 1.05 billion DFS nodes); none reached 848. Independently verified all 179,352 start/block-length pairs before submission."
    }
  ]
}