Skelet’s 43 machines

Here are Skelet’s 43 undecided machines and their equivalent machines in the seed database of the Busy Beaver Challenge. More info about Skelet’s machines.

Some of these 43 machines are claimed to have been decided (way before the Busy Beaver Challenge existed) and only 21 appear to be currently still undecided, see Dan Briggs’ github.

In order to find the equivalent machines to Skelet’s in our database the following transformations are applied:

  1. Rename states so that they come in the order in which they are discovered when the machine is executed from all-0 tape.
  2. If needed, symmetrise the machine by converting any tape movement “L” to tape movement “R” so that the first tape movement is “R”.
Skelet machine Equivalent bbchallenge machine bbchallenge status
1 
C1L E1L  H1L D1L  D1R D0L  A1L E1R  B0L C0R

1LC1LE_---1LD_1RD0LD_1LA1RE_0LB0RC		 Machine #68,329,601
2 
C1L E0R  H1L C0R  D1R A0L  A1R D1R  A1L B0R

1LC0RE_---0RC_1RD0LA_1RA1RD_1LA0RB		 Machine #55,767,995
3 
C1L A0R  H1L E1L  D1R B0L  A1R C1R  C0L D1L

1LC0RA_---1LE_1RD0LB_1RA1RC_0LC1LD		 Machine #5,950,405
4 
C1L D0R  H1L E0L  D1R C1L  E1L A1R  B1L D0L

1LC0RD_---0LE_1RD1LC_1LE1RA_1LB0LD		 Machine #6,897,876
5 
C1L A1L  H1L D0L  D1R E0L  A1L C0R  C1R B0L

1LC1LA_---0LD_1RD0LE_1LA0RC_1RC0LB		 Machine #60,581,745
6 
C1L B0R  H1L D0R  D1L A0R  E1R C0L  C1R E1R

1LC0RB_---0RD_1LD0RA_1RE0LC_1RC1RE		 Machine #58,211,439
7 
C1L B0R  H1L E1R  D1L A1L  A1R D0L  A0R C1R

1LC0RB_---1RE_1LD1LA_1RA0LD_0RA1RC		 Machine #7,196,989
8 
C1L B0R  H1L C0R  D1L C0L  E0R C1L  A0R E1R

1LC0RB_---0RC_1LD0LC_0RE1LC_0RA1RE		 Machine #7,728,246
9 
C1L D1R  H1L C0L  A1R C1L  E1R A0R  B1L E0L

1LC1RD_---0LC_1RA1LC_1RE0RA_1LB0LE		 Machine #12,554,268
10 
C1L A0L  H1L C0L  D0R A1L  B1L E1R  D1R E0R

1LC0LA_---0LC_0RD1LA_1LB1RE_1RD0RE		 Machine #3,810,716
11 
C1L A0L  H1L A0R  D0R A1L  E0R D1R  A1L B0R

1LC0LA_---0RA_0RD1LA_0RE1RD_1LA0RB		 Machine #3,810,169
12 
C1L E0L  H1L E1L  D0R A1L  A0L C1R  C1R B0L

1LC0LE_---1LE_0RD1LA_0LA1RC_1RC0LB		 Machine #4,982,511
13 
C1L B0R  H1L A1R  D0L E1R  E0R C1L  C1R A0R

1LC0RB_---1RA_0LD1RE_0RE1LC_1RC0RA		 Machine #7,566,785
14 
B1L H1L  C1R E0R  D1L B0R  D0L A1L  C0R A0L

1LB---_1RC0RE_1LD0RB_0LD1LA_0RC0LA		 Machine #31,357,173
15 
B1L H1L  C1L B1R  D1R E1L  B1R D0R  A1L C0L

1LB---_1LC1RB_1RD1LE_1RB0RD_1LA0LC		 Machine #2,204,428
16 
B1L H1L  C0R D1L  D1R C1R  E1L E0L  A0L B0R

1LB---_0RC1LD_1RD1RC_1LE0LE_0LA0RB		 Machine #20,569,060
17 
B1L H1L  C0R E1L  D0R C1R  A1L B1R  B0L A0L

1LB---_0RC1LE_0RD1RC_1LA1RB_0LB0LA		 Machine #1,365,166
18 
B1L H1L  C0L D0R  D1L E0R  E1L A0L  C1R D0R

1LB---_0LC0RD_1LD0RE_1LE0LA_1RC0RD		 Machine #15,439,451
19 
B1L H1L  C0L B0L  C1R D0R  A1L E0R  A0R E0R

1LB---_0LC0LB_1RC0RD_1LA0RE_0RA0RE		 Machine #14,536,286
20 
B1L H1L  C0L D1L  D0R C1L  E1R A0L  A1L E0R

1LB---_0LC1LD_0RD1LC_1RE0LA_1LA0RE		 Machine #347,505
21 
C1L E1L  A1L H1L  D1R E0R  B1R E1R  C1R A0L

1LC1LE_1LA---_1RD0RE_1RB1RE_1RC0LA		 Machine #9,980,689
22 
C1L E0L  A1R H1L  D1R A0L  D0R B1R  C0L B0R

1LC0LE_1RA---_1RD0LA_0RD1RB_0LC0RB		 Machine #45,615,747
23 
C1L C0R  D0L H1L  D1R E0L  C1L E0R  A1R B1L

1LC0RC_0LD---_1RD0LE_1LC0RE_1RA1LB		 Machine #6,237,150
24 
C1L A1L  E1R H1L  D1R D0R  B0R E0L  A0L C1R

1LC1LA_1RE---_1RD0RD_0RB0LE_0LA1RC		 Machine #60,658,955
25 
C1L A0R  A1L H1L  D1R E1L  A1R D0R  E0L B0R

1LC0RA_1LA---_1RD1LE_1RA0RD_0LE0RB		 Machine #47,260,245
26 
C1L E1R  D1R H1L  D1L C0L  A1R D1L  B1R A0R

1LC1RE_1RD---_1LD0LC_1RA1LD_1RB0RA		 Machine #13,134,219
27 
C1L E0R  E0L H1L  D1L B0L  A1R A0L  A0R E1R

1LC0RE_0LE---_1LD0LB_1RA0LA_0RA1RE		 Machine #7,163,434
28 
C1L E0L  D1R H1L  B1L E1L  A1R E1R  A1L D0R

1LC0LE_1RD---_1LB1LE_1RA1RE_1LA0RD		 Machine #5,657,318
29 
C1L D0R  A0L H1L  A1R D0L  E1R B1L  C1L C0R

1LC0RD_0LA---_1RA0LD_1RE1LB_1LC0RC		 Machine #6,626,162
30 
C1L E0L  C1R H1L  D0R A1L  A1R E0R  B1R E0L

1LC0LE_1RC---_0RD1LA_1RA0RE_1RB0LE		 Machine #4,986,661
31 
C1L B0R  E0R H1L  D0L C1L  E1L C0L  A1R C0R

1LC0RB_0RE---_0LD1LC_1LE0LC_1RA0RC		 Machine #56,967,673
32 
C1L E0R  C0L H1L  D0L B0L  D1R A0R  A1R D1L

1LC0RE_0LC---_0LD0LB_1RD0RA_1RA1LD		 Machine #6,957,734
33 
C1L D1R  E1R H1L  D0L C0L  B1R A0R  A1R E1L

1LC1RD_1RE---_0LD0LC_1RB0RA_1RA1LE		 Machine #11,896,833
34 
C1L D1R  E1R H1L  D0L C0L  B1R A0R  A1R A1L

1LC1RD_1RE---_0LD0LC_1RB0RA_1RA1LA		 Machine #11,896,832
35 
C1L D1R  E1R H1L  D0L C0L  B1R A0R  A1R A0R

1LC1RD_1RE---_0LD0LC_1RB0RA_1RA0RA		 Machine #11,896,831
36 
C1L E1R  D1R H1L  D0L C0L  B1R A1L  D1L A0R

1LC1RE_1RD---_0LD0LC_1RB1LA_1LD0RA		 Machine #13,609,549
37 
C1L B0R  C1R H1L  D0L D0R  A1R E0L  D1L E1L

1LC0RB_1RC---_0LD0RD_1RA0LE_1LD1LE		 Machine #7,512,832
38 
C1L C0L  D1L H1L  B0L D0R  E0R A1L  A1R E1R

1LC0LC_1LD---_0LB0RD_0RE1LA_1RA1RE		 Machine #35,771,936
39 
B1L D1L  C1R H1L  E1R D1R  E1L C0R  A1L D0L

1LB1LD_1RC---_1RE1RD_1LE0RC_1LA0LD		 Machine #9,914,965
40 
B1L A0L  C1R H1L  C0R D0R  E1L B0L  E0L A1L

1LB0LA_1RC---_0RC0RD_1LE0LB_0LE1LA		 Machine #3,841,616
41 
B1L A0R  C1L H1L  D0L E1R  E1L A0L  C1R A0R

1LB0RA_1LC---_0LD1RE_1LE0LA_1RC0RA		 Machine #5,915,217
42 
B1L E0R  C1L H1L  D0L C0L  D1R A0R  B0R E0R

1LB0RE_1LC---_0LD0LC_1RD0RA_0RB0RE		 Machine #57,874,080
43 
B1L A0R  C0L H1L  C1R D1L  E1L A1R  B0L D0R

1LB0RA_0LC---_1RC1LD_1LE1RA_0LB0RD		 Machine #5,878,998