BB(3,5): Difference between revisions

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Linked champion, added note about Cryptids
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Mentioned the champion having been constructed
 
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The 3-state, 5-symbol Busy Beaver problem, BB(3,5), is unsolved and largely unexplored.
The 3-state, 5-symbol Busy Beaver problem, BB(3,5), is unsolved and largely unexplored.


The current BB(3,5) [[champion]] is {{TM|1RB3LB4LC2RA4LB_2LC3RB1LC2RA1RZ_3RB1LB3LC2RC4LC|halt}}, which takes over <math>> f_\omega(2 \uparrow^{15} 5) > f_\omega^2(15)</math> steps to halt. It was dicovered by Racheline in 2024. Due to the discoveries of [[Bigfoot]] in [[BB(3,3)]] and [[Hydra]] in [[BB(2,5)]], the existence of [[Cryptids]] in BB(3,5) is certain.
The current BB(3,5) [[champion]] is {{TM|1RB3LB4LC2RA4LB_2LC3RB1LC2RA1RZ_3RB1LB3LC2RC4LC|halt}}, which takes over <math>> f_\omega(2 \uparrow^{15} 5) > f_\omega^2(15)</math> steps to halt. It was constructed by Racheline in 2024 by modifying the [[BB(3,4)]] champion.<ref>https://discord.com/channels/960643023006490684/960643023530762341/1396500620625707078</ref> Due to the discoveries of [[Bigfoot]] in [[BB(3,3)]] and [[Hydra]] in [[BB(2,5)]], the existence of [[Cryptids]] in BB(3,5) is certain.
 
== References ==


[[Category:BB Domains]]
[[Category:BB Domains]]

Latest revision as of 16:57, 20 February 2026

The 3-state, 5-symbol Busy Beaver problem, BB(3,5), is unsolved and largely unexplored.

The current BB(3,5) champion is 1RB3LB4LC2RA4LB_2LC3RB1LC2RA1RZ_3RB1LB3LC2RC4LC (bbch), which takes over >fω(2155)>fω2(15) steps to halt. It was constructed by Racheline in 2024 by modifying the BB(3,4) champion.[1] Due to the discoveries of Bigfoot in BB(3,3) and Hydra in BB(2,5), the existence of Cryptids in BB(3,5) is certain.

References