1RB0LF_1LC1RA_0RE0RD_---1LE_1LF1RC_1LC1LA

1RB0LF_1LC1RA_0RE0RD_---1LE_1LF1RC_1LC1LA (bbch) is a BB(6) potential Cryptid found by Marco Dos Santos using Gemini and reported in his paper At the Limits of Computability: Steps Towards Autonomous AI Discovery on the Busy Beaver Frontier. The probvious behavior of these TMs has not yet been analyzed.

Analysis by Marco Dos Santos

Consider:
C(a, b) = 0^inf E> 10^a 1^b 0^inf

C(a, b) -> C(2a+2, b-2a-2) if b > 2a+2
C(a, 1) -> C(2, 2a+2)
C(a, 2) -> Halt
C(a, 2k) -> C((6a+2k+2)/4, (6a+2k+2)%4+1) if a >= 1 and 2 <= k <= a+1
C(a, 2k+1) -> C((6a+2k+6)/4, (6a+2k+6)%4+1) if a >= 1 and 1 <= k <= a

Start: C(0,3), reached after 7 raw TM steps