1RB3RB1LB---2RB 2LA1RA4LB2LA2RA: Difference between revisions
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{{TM|1RB3RB1LB---2RB_2LA1RA4LB2LA2RA|undecided}} is a [[BB(2,5)]] machine whose behavior is suspected to be similar to [[Skelet 17]]. | |||
Analysis shared by Daniel Yuan (@dyuan01) on Discord, [https://discord.com/channels/960643023006490684/1084047886494470185/1251145215461560391 on June 14th 2024]: | Analysis shared by Daniel Yuan (@dyuan01) on Discord, [https://discord.com/channels/960643023006490684/1084047886494470185/1251145215461560391 on June 14th 2024]: | ||
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</pre> | </pre> | ||
And you should start at [1, 1] | And you should start at [1, 1]. | ||
== Review == | |||
Matthew House (@LegionMammal978) reviewed the above analysis on [https://discord.com/channels/960643023006490684/1084047886494470185/1251210996224364766 June 14th 2024] and agrees with it. | |||
Latest revision as of 22:23, 10 August 2025
1RB3RB1LB---2RB_2LA1RA4LB2LA2RA (bbch) is a BB(2,5) machine whose behavior is suspected to be similar to Skelet 17.
Analysis shared by Daniel Yuan (@dyuan01) on Discord, on June 14th 2024:
I just checked whenever the beaver reaches the 1 on the left side, and calculated the tape for when it next reaches the left side. It would be nice if someone can verify these rules.
[x, y, z] := 1 <B 4^x 12 4^y 12 4^z [0, a, b, …] -> [a+3, b, …] [2n+1, 2a, 2b, …, 0] -> Halt [2n+1, 2a, 2b, …, 2m+2] -> [2n, 2a, 2b, …, 2m+2, 0] [2n+1, 2a, 2b, …, 2m+1] -> [2n, 2a, 2b, …, 2m+1, 1] [2n+1, 2a, 2b, …, 2m+1, x, …] -> [2n, 2a, 2b, …, 2m+1, x+1, …] [2n+2, a, b, …] -> [2n+1, a+1, b, …]
And you should start at [1, 1].
Review
Matthew House (@LegionMammal978) reviewed the above analysis on June 14th 2024 and agrees with it.