1RB0LD 1RC0RF 1LC1LA 0LE1RZ 1LF0RB 0RC0RE: Difference between revisions
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{{machine|1RB0LD_1RC0RF_1LC1LA_0LE1RZ_1LF0RB_0RC0RE}} | {{machine|1RB0LD_1RC0RF_1LC1LA_0LE1RZ_1LF0RB_0RC0RE}}{{Stub}} | ||
{{TM|1RB0LD_1RC0RF_1LC1LA_0LE1RZ_1LF0RB_0RC0RE|halt}} | {{TM|1RB0LD_1RC0RF_1LC1LA_0LE1RZ_1LF0RB_0RC0RE|halt}} is a former [[BB(6)]] champion. It was discovered by Pavel Kropitz on 30 May 2022. This TM runs for over 10↑↑15 steps. An improved bound for this TMs runtime was achieved by Shawn Ligocki, using an extended version of tetration: <math>10 \uparrow\uparrow 15.60463 < Score < Runtime < 10 \uparrow\uparrow 15.60466</math><ref>S. Ligocki, "[https://www.sligocki.com/2022/06/25/ext-up-notation.html Extending Up-arrow Notation]". Blog Post, 2022. Accessed 15 August 2025.</ref>. See analysis: <ref>S. Ligocki, "[https://www.sligocki.com/2022/06/21/bb-6-2-t15.html BB(6, 2) > 10↑↑15]". Blog post, 2022. Accessed 20 June 2024.</ref>. | ||
It simulates the following Collatz-like rules, starting at <math>C(5)</math>, on tape configurations <math>C(n) = 0^\infty\; 1\; 0^n\; 11\; 0^5\; \textrm{C>}\; 0^\infty</math>: | It simulates the following Collatz-like rules, starting at <math>C(5)</math>, on tape configurations <math>C(n) = 0^\infty\; 1\; 0^n\; 11\; 0^5\; \textrm{C>}\; 0^\infty</math>: | ||
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==References== | ==References== | ||
<references /> | <references /> | ||
Latest revision as of 18:05, 15 August 2025
1RB0LD_1RC0RF_1LC1LA_0LE1RZ_1LF0RB_0RC0RE (bbch) is a former BB(6) champion. It was discovered by Pavel Kropitz on 30 May 2022. This TM runs for over 10↑↑15 steps. An improved bound for this TMs runtime was achieved by Shawn Ligocki, using an extended version of tetration: [1]. See analysis: [2].
It simulates the following Collatz-like rules, starting at , on tape configurations :
References
- ↑ S. Ligocki, "Extending Up-arrow Notation". Blog Post, 2022. Accessed 15 August 2025.
- ↑ S. Ligocki, "BB(6, 2) > 10↑↑15". Blog post, 2022. Accessed 20 June 2024.