Finding bottlenecks

Post by **dvgrn** » December 19th, 2020, 12:17 pm

Related links:

1599: Thread for posting stable Herschel conduits, excluding Herschel-to-glider converters
1682: Thread for posting stable Herschel-to-glider converters
1849: Thread for posting stable elementary conduits
4790: Thread for posting periodic Herschel conduits
4996: Thread for posting periodic elementary conduits
4993: Thread for posting speculative elementary conduits using common active reactions (known signals)
4809: Thread for posting speculative conduits with uncommon active reactions
4891: Thread for posting speculative reactions that might allow for future conduits
4868: Thread for collecting speculative chaos-edgeshooting reactions
4879: Thread for collecting speculative conduit-yielding reactions, e.g., from soup search results
4994: Thread for posting dirty conduits that recover but leave extra junk
4971 (this thread): Thread for collecting bottlenecks (low-population active configurations in known conduits)

MathAndCode · Post by **MathAndCode** » January 2nd, 2021, 2:20 am

I decided to go through the Elementary Conduits Collection and see if there are any common regions for which we have bottlenecks but don't know it. I am only going to list regions that are not currently recognized in the Elementary Conduits Collection. Here are the results.

BFx157B, BLx303H_Rx161B, BRx161B, and BFx177H have a pond and two-glider octomino, which occurred 50,178 times here and is first from the left in the second row here, as an intermediate.
BNW26T157, BFx176R, CFx53B, HL98B: eater 2, and PF*291R have a clean I-sequence, which occurred 53,177 times here and is second from the right in the first row here, as an intermediate.
CBx37C has a boat and the region that occurred 28,314 times here and is fourth from the right in the second row here as an intermediate.
CL26R has a block and the region that occurred 28,314 times here and is fourth from the right in the second row here as an intermediate.
DSE8T9 has the region that occurred 6,948 times here as an intermediate.
HFx236B has a tub and the region that occurred 9,396 times here as an intermediate.
HR117B has a beehive and the region that occurred 8,426 times here as an intermediate.
HB56B has the region that occurred 28,314 times here and is fourth from the right in the second row here as an intermediate.
HR117B has the region that occurred 10,747 times here as an intermediate.
HNE34T49 also creates a teardrop, which occurred 64,485 times here, then deletes it.
HNW36T128 has the region that occurred 8,426 times here as an intermediate.
HSE16T100 has a block and the region that occurred 8,569 times here as an intermediate.
HSE19T106 has a boat and a teardrop, which occurred 64,485 times here, as an intermediate.
HFx77 creates the region that occurred 13,997 times here, then either deletes it or turns it into a glider.
HFx158 has the region that occurred 8,670 times here as an intermediate.
PB*68B has a tub and the region that occurred 8,670 times here as an intermediate.
PB*173B has a block and a predecessor for a teardrop, which occurred 64,485 times here, as an intermediate.
PB*173B has the region that occurred 46,879 times here as an intermediate.
PL*328C and PS12T565L create then delete the region that occurred 18,507 (and 14,689) times here
PNW−3T177 has the region that occurred 10,747 times here as an intermediate.
PSE19T123 has the region that occurred 14,525 times here as an intermediate.
RBx22B has an intermediate that evolves the same way as the regions that occurred 18.507 and 14,689 times here.
RSW13T28 has an intermediate that would evolve into a beehive and the region that occurred 13,997 times here.

I think that when checking whether an intermediate for a conduit was in this list, I may have missed the region that occurred 13,484 times, but I can't remember which conduit (although I know that it would have been in or before the H→B section).

ihatecorderships · Post by **ihatecorderships** » May 24th, 2021, 1:13 pm

A pretty connectable octomino 2 to B