User contributions for Polygon

20 February 2026

• 23:5323:53, 20 February 2026 diff hist +98 Repeated Word List Added reference for the image
• 23:5223:52, 20 February 2026 diff hist +7 Repeated Word List Increased size of the image, moved it upwards
• 23:4923:49, 20 February 2026 diff hist +182 Repeated Word List Added image
• 23:4123:41, 20 February 2026 diff hist +175 N File:RepWL 0RB0LC 1LA1RB 1RD0RE 1LC1LA ---0LD.png Repeated Word List tree for TM 0RB0LC_1LA1RB_1RD0RE_1LC1LA_---0LD Source: https://discord.com/channels/960643023006490684/1295401870298320977/1348277260221677641 current
• 23:1723:17, 20 February 2026 diff hist +32 N Repeated Word List (RepWL) Redirected page to Repeated Word List current Tag: New redirect
• 23:1423:14, 20 February 2026 diff hist 0 m Repeated Word List →History: consistent time
• 23:1223:12, 20 February 2026 diff hist +71 User:Polygon/Page for testing Added another incomplete page
• 22:5922:59, 20 February 2026 diff hist +199 Repeated Word List Added another reproduction
• 22:4622:46, 20 February 2026 diff hist −63 User:Polygon/Page for testing No longer missing; added Irregular Turing Machine article
• 22:4522:45, 20 February 2026 diff hist +86 Repeated Word List Added See also section
• 22:4222:42, 20 February 2026 diff hist +336 Repeated Word List Added history section
• 22:3022:30, 20 February 2026 diff hist +181 Repeated Word List Added mechanism for proving non-halting
• 22:2722:27, 20 February 2026 diff hist +33 Decider →List of Deciders: added Repeated Word List current
• 22:2622:26, 20 February 2026 diff hist +295 Repeated Word List Added N
• 22:1922:19, 20 February 2026 diff hist +318 Repeated Word List Added regex branching
• 22:1022:10, 20 February 2026 diff hist +226 Repeated Word List Added block simulation
• 22:0422:04, 20 February 2026 diff hist +89 Repeated Word List Constant blocks
• 22:0122:01, 20 February 2026 diff hist −5 Repeated Word List wording
• 21:5921:59, 20 February 2026 diff hist +311 Repeated Word List Began expansion
• 21:4221:42, 20 February 2026 diff hist +32 N RepWL Redirected page to Repeated Word List current Tag: New redirect
• 21:2221:22, 20 February 2026 diff hist +94 N Repeated Word List Created page with "'''Repeated Word List''' (short '''RepWL''') is a decider. Category:Deciders {{Stub}}"
• 21:0721:07, 20 February 2026 diff hist +94 User:Polygon/Page for testing Added missing (RepWL)
• 20:5320:53, 20 February 2026 diff hist +88 Finite Automata Reduction Reference for Nondeterministic Finite Automata current
• 20:4420:44, 20 February 2026 diff hist +58 Finite Automata Reduction expanded
• 20:4020:40, 20 February 2026 diff hist −25 Finite Automata Reduction rewording
• 20:3920:39, 20 February 2026 diff hist +81 User:Polygon/Page for testing started a list
• 20:2620:26, 20 February 2026 diff hist +1 m Finite Automata Reduction Missing point
• 20:2620:26, 20 February 2026 diff hist +223 Finite Automata Reduction Attempted to expand this a bit
• 20:1420:14, 20 February 2026 diff hist −2 1RB1LE 1LB1LC 1RD0LE ---0RB 1RF1LA 0RA0RD →Analysis by Polygon: updated rule A10 to use rule a4 current
• 19:4919:49, 20 February 2026 diff hist +179 TMBR: February 2026 →Holdouts: added two new non-halting TMs
• 19:1519:15, 20 February 2026 diff hist 0 m BB(2,6) →Stage 4: comma current
• 19:0919:09, 20 February 2026 diff hist 0 TMBR: February 2026 →Holdouts: updated BB(2,6) progress
• 19:0819:08, 20 February 2026 diff hist 0 Holdouts lists Updated BB(2,6) holdout count current
• 19:0719:07, 20 February 2026 diff hist +184 BB(2,6) →Stage 4: Added two new reductions
• 18:2818:28, 20 February 2026 diff hist +18 Champions Added references section current
• 18:2718:27, 20 February 2026 diff hist +274 Champions →2-Symbol TMs: Added BB(150) lim(BMS) TM
• 18:0118:01, 20 February 2026 diff hist 0 BB(4,4) Moved the reference to its corresponding statement current
• 17:5017:50, 20 February 2026 diff hist +163 TMBR: February 2026 →Holdouts: added new BB(6) holdouts list
• 17:3517:35, 20 February 2026 diff hist +4 BB(4,4) Consistency
• 17:3317:33, 20 February 2026 diff hist +292 BB(8) Expanded section about enumeration current
• 16:5716:57, 20 February 2026 diff hist +155 BB(3,5) Mentioned the champion having been constructed current
• 16:3716:37, 20 February 2026 diff hist 0 BB(4,4) Link exchange
• 16:3516:35, 20 February 2026 diff hist +789 N BB(4,4) Created page with "The 4-state 4-symbol Busy Beaver problem, BB(4,4), is unsolved and unexplored. With Cryptids like Bigfoot in the preceding domain BB(3,3), we know that we must solve a Collatz-like problem in order to solve BB(4,4). The current BB(4,4) champion is simply inherited from BB(3,4) as BB(4,4) has not been explored yet. In September 2025, tjligocki ran a test enumeration on one of 1 billion subtasks. The subtask ran for 1.5 hours..."
• 14:5514:55, 20 February 2026 diff hist −3 BB(11) expected --> known current
• 14:4914:49, 20 February 2026 diff hist +45 Non-halting Turing machine Added Category:Zoology and Category:Functions current
• 14:3114:31, 20 February 2026 diff hist +198 N Talk:BB(3,5) Created page with "Is there any available information on the champion TM {{TM|1RB3LB4LC2RA4LB_2LC3RB1LC2RA1RZ_3RB1LB3LC2RC4LC|halt}}? ~~~~" current
• 14:3014:30, 20 February 2026 diff hist +479 BB(11) Made this page consistent with other BB Domain pages
• 14:2314:23, 20 February 2026 diff hist +242 BB(3,6) Made this page consistent with other BB Domain pages current
• 14:1914:19, 20 February 2026 diff hist +316 BB(2,9) Made this page consistent with other BB Domain pages current
• 14:1214:12, 20 February 2026 diff hist +273 BB(2,8) Made this page consistent with other BB Domain pages current