User contributions for Polygon

20 February 2026

• 14:0214:02, 20 February 2026 diff hist +34 Beaver Math Olympiad Added Category:Individual machines current
• 14:0114:01, 20 February 2026 diff hist 0 m Dekaheptoid →1RB1LC_1RC---_0LD1RE_0LA1LD_0RF0RB_0LC1RE: grammar current
• 13:5813:58, 20 February 2026 diff hist +22 Universal Turing Machine Added Category:Zoology current
• 13:5613:56, 20 February 2026 diff hist 0 m Champions Category spelling
• 13:5613:56, 20 February 2026 diff hist +55 Champions Added Category:Individual Machines and Category:Zoology
• 13:5113:51, 20 February 2026 diff hist +22 Logical independence Added Category:Zoology
• 13:4513:45, 20 February 2026 diff hist +48 TYBR: 2025 Added Category:This Year in Beaver Research current
• 13:4413:44, 20 February 2026 diff hist +215 N Category:This Year in Beaver Research Created page with "'''This Year in Beaver Research''' ('''TYBR''') is an annual series of articles dedicated to covering Busy Beaver research progress, announcements and news from each year. Category:This Month in Beaver Research" current
• 13:4113:41, 20 February 2026 diff hist +52 TMBR: February 2026 Added Category:This Month in Beaver Research
• 13:4113:41, 20 February 2026 diff hist 0 TMBR: January 2026 Updated identifier in Category:This Month in Beaver Research current
• 13:3313:33, 20 February 2026 diff hist 0 m Skelet 17 fixed a typo
• 13:1513:15, 20 February 2026 diff hist +63 Busy Beaver Functions De-orphaned Introduction to the Busy Beaver Function current
• 12:3412:34, 20 February 2026 diff hist +36 BB(n,1) Linked champions, added See also with a link to BB(1,m) current
• 12:3012:30, 20 February 2026 diff hist +4 Turing completeness linked Brainfuck current
• 12:2312:23, 20 February 2026 diff hist +15 User:Polygon/Page for analyses →Functions: explained m current
• 12:2212:22, 20 February 2026 diff hist +15 User:Polygon/Page for analyses →Functions: explained m
• 12:0812:08, 20 February 2026 diff hist +4 m User:Polygon/Page for analyses →Approximate Score: brackets for clarity

19 February 2026

• 19:1419:14, 19 February 2026 diff hist +40 1RB3LA1LA1RA1RA 2LB2RA---4RB1LB Added a note to the second block current
• 19:1119:11, 19 February 2026 diff hist +21 m 1RB2LB0LB 2LC2LA0LA 2RD1LC1RZ 1RA2LD1RD formatting current
• 19:1019:10, 19 February 2026 diff hist +21 m 1RB1RD1LC 2LB1RB1LC 1RZ1LA1LD 2RB2RA2RD formatting current
• 18:5418:54, 19 February 2026 diff hist 0 1RB1LE 1LC0RA 0RF0LD 1LE1LA 1RC0LB ---1RC Moved the link to the faster version to the text about it current
• 18:4418:44, 19 February 2026 diff hist 0 1RB1LE 1LC0RA 0RF0LD 1LE1LA 1RC0LB ---1RC Made the step counts look less weird
• 18:4218:42, 19 February 2026 diff hist +3 1RB1LA 1LC0RC 1LD1RC 1RB1LE 0LF0LA ---0RB Made the step counts look less weird current
• 18:4118:41, 19 February 2026 diff hist +222 1RB1LA 1RC0RC 1LA1RD 1LE1RD ---1LF 1LE0LA Added month of discovery, migrated references from Cosearch current
• 18:2818:28, 19 February 2026 diff hist +12 1RB0LC 1RC1RA 1RD0RF 0LE--- 1LA1LE 0RA1RF Mentioned it being a holdout current
• 18:2518:25, 19 February 2026 diff hist +1 m Logical independence fixed typo
• 17:3917:39, 19 February 2026 diff hist +2 BB(6) →History: updated holdout count current
• 17:3717:37, 19 February 2026 diff hist +137 Holdouts lists Updated BB(6) holdout count
• 17:3417:34, 19 February 2026 diff hist +77 N File:BB6 holdouts 1226.txt Holdouts list shared on February 19 2026 by mxdys over Discord. current
• 15:4715:47, 19 February 2026 diff hist −17 BB(8) removed "almost certainly"

18 February 2026

• 16:0716:07, 18 February 2026 diff hist +157 Main Page →This Month in Beaver Research (TMBR): Added TYBR to main page current
• 12:3612:36, 18 February 2026 diff hist +461 TYBR: 2025 →This Year in Beaver Research (TYBR - "Thank You Beaver Researchers!"): Added table
• 12:2612:26, 18 February 2026 diff hist +128 BB(8) Added note about enumeration
• 12:2312:23, 18 February 2026 diff hist +140 BB(3,5) Linked champion, added note about Cryptids
• 12:1912:19, 18 February 2026 diff hist +1 m TMBR: February 2026 →Holdouts: consistent time
• 12:1312:13, 18 February 2026 diff hist −3 BB(2,6) →Stage 3: updated text, fixed heading level for stage 4
• 12:0912:09, 18 February 2026 diff hist +25 m BB(2,6) →Stage 3: consistent alignment
• 11:4411:44, 18 February 2026 diff hist −13 BB(6) →Top Halters: improved lower bound for score
• 11:3411:34, 18 February 2026 diff hist −24 m Fractran →BMO 6 (“Space Needle”): fixed syntax highlighting error current
• 11:3311:33, 18 February 2026 diff hist −24 m Fractran →Antihydra-like Cryptid: fixed syntax highlighting error
• 11:2611:26, 18 February 2026 diff hist +20 BB(2,5) →Top Halters: Added new (old) top halter current
• 10:3810:38, 18 February 2026 diff hist +25 1RB0LE 1LC1LB 0RD0LC 1RA0RE 1RF1RD 0LA--- Fixed grammar current
• 10:3310:33, 18 February 2026 diff hist +75 1RB1RA 0RC1RC 1LD0LF 0LE1LE 1RA0LB ---0LC Added Template:unsolved problem current

17 February 2026

• 20:4420:44, 17 February 2026 diff hist −77 User:Polygon Removed nonexistent page current Tag: Manual revert
• 20:4120:41, 17 February 2026 diff hist +6 m TMBR: February 2026 →Holdouts: Bolded current holdout count for BB(2,6)
• 20:3920:39, 17 February 2026 diff hist 0 User:Polygon/Collection of BB Champions →Regular Busy Beaver for Lambda Calculus (BBλ(n)): updated laver table champion current
• 20:3920:39, 17 February 2026 diff hist +13 TMBR: February 2026 updated BBλ laver table champion

14 February 2026

• 08:5908:59, 14 February 2026 diff hist +296 User:Polygon/Collection of BB Champions →Oracle Busy Beaver for Lambda Calculus (BBλ1(n)): changed formatting
• 08:4908:49, 14 February 2026 diff hist +2,427 User:Polygon/Collection of BB Champions →Regular Busy Beaver for Lambda Calculus (BBλ(n)): updated list
• 08:2808:28, 14 February 2026 diff hist +339 TMBR: February 2026 Added new BBλ champions