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Choose challenge
BB(5)
BB(6)
BB(2,5)
BB(3,3)
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Simulation Parameters
Show head movement (green for L, red for R)
Visualization:
Default
Explore
Blaze
Machine
1RB1RF_1RC0RE_1LD0RB_1RE0LC_1RA0LE_0RC---
Status:
Undecided
Machine code:
0
1
A
1R
B
1R
F
B
1R
C
0R
E
C
1L
D
0R
B
D
1R
E
0L
C
E
1R
A
0L
E
F
0R
C
---
Std format:
1RB1RF_1RC0RE_1LD0RB_1RE0LC_1RA0LE_0RC---
Copy code for https://turingmachine.io/
View at https://fiery.pages.dev/turing/
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News
July 2nd 2024
May 2nd 2024
April 9th 2023
Highlighted machines
BB(6) champion:
·
>
2
↑
↑
↑
5
> 2\uparrow\uparrow\uparrow 5
>
2
↑↑↑
5
-halter
[mxdys, 2025]
Other halting machines:
·
≃
10
↑
↑
11010000
\simeq 10\uparrow\uparrow 11010000
≃
10
↑↑
11010000
-halter
[mxdys, 2025]
·
≃
10
↑
↑
15
\simeq 10\uparrow\uparrow 15
≃
10
↑↑
15
-halter
[Kropitz, 2022]
6-state 2-symbol
Cryptids
:
· Antihydra
[mxdys, Racheline, 2024]