OCA Discovery of the Year 2025 Nominations

[islptng]

(Well, It's already 2026 in some place, so I posted this thread.)

Rules from this 2018 thread apply. In essence: nominations should be interesting and nontrivial, and they should be from the 2025 calendar year (UTC).

Nominations will close when the voting thread is created, which won't happen until June 1st, 2026 at earliest.

It would be appreciated if you include a short description for each of your nominations to explain why they may be interesting to others.

[hotdogPi]

Two of your years seem to be off by one. I assume the discoveries need to be from 2025 and voting will start in 2026?

Unrelated, but I also think 5 months is way too long of a wait; people will forget what happened in 2025.

[islptng]

Two of your years seem to be off by one. I assume the discoveries need to be from 2025 and voting will start in 2026?

Thanks, at the time between 2 year, I always get confused. I think i fixed that.

Unrelated, but I also think 5 months is way too long of a wait; people will forget what happened in 2025.

Last year's voting starts also on June, so why too long?

Anyway, to keep it ontopic, here's nominations' names that's made by myself:

• HexaSmodel rule: first infinite nested SMOSMOS...MOS on a hexagonal grid in 32 states
• TNT: first OCA recreation of APGsembly and a lot of other things engineered
• ugh i can't remember more...

[speedydelete]

B2-ak3ce4eikqrz5-iknq6-ek8/S1c2aek3aekn4eiknry5eiky6-ei7c8: A rule with more than 1100 NRSS (nonadjustable reduced speed of ship).

[NimbleRogue]

The first SMOSMOSMOS in INT - Ampere
viewtopic.php?f=11&t=3071&start=250#p210748
INT SMOS made of three separate 2 ship interactions - yaochen2
viewtopic.php?f=11&t=3071&start=300#p218720
This 2c/21,712,240,845o Ship which is the first nonadjustable ship in INT over period 10 billion - NimbleRogue
viewtopic.php?f=11&t=6649&p=216034#p216034
The INT rule with the second most known NRSS and the most NRSS slopes - FWKnightship
viewtopic.php?f=11&t=6458&start=75#p217084
Unstable version of B23/S2V that can move its bounding box - Sylvie
viewtopic.php?f=11&t=1971&p=217741#p217741

[Naszvadi]

• corderization of small 20c/44 engine in B3468/S0357 viewtopic.php?f=11&t=1074&p=214513#p214513
• (by confocaloid) glider extraction from (B3/S023) DotLife flotillae: viewtopic.php?f=11&t=1798&p=219626#p219626
• (May13, et al) amongst several new hexagonail spaceships, there is an oblique one in outer/totalistic hexagonal rule B256/S256H: viewtopic.php?f=11&t=3670&p=223029#p223007
• strongly based on Layz Boi's contribution - B34/S0134V von Neumann n.h. CA in 2 dimension and as a corollary several relative rules in higher dimensions are Turing-complete, due to this Rule-110 unit cell: viewtopic.php?f=11&t=2597&p=223249#p223249

[Disaster16439]

islptng’s 256c/544330d geminoid in T and Tub, along with 128c/28024o orthogonoid. (First nomination I’ve done, so might have got things wrong). Link: https://conwaylife.com/forums/viewtopi ... 56#p212113

[ThePlayzr]

TTs, a Turing-Complete margolus supporting 2TFL rule with known p3, p5, p7, p8, and p11 reflectors of the 'T' spaceship. The most recent version of the full stamp collection can be found at User:PK22/OCA:Travelling Ts/Full Stamp Collection This is outdated. 2 important things it does not include are the 3c/8 distaff and the most recent version of the quadratic growth pattern. I will try to make the collection before OCA DOTY 2025 voting.
EDITED x2

[splitterrules]

I nominate my other SMOSMOSMOSes:
viewtopic.php?f=11&t=3071&p=212971#p212971
These should be added to the nomination of the first SMOSMOSMOS.

[R2INT]

Nominating my OCA rule Checkerboard, Day and Night, with the initial post on Jan 8:

I have recently been experimenting with rules that are not only self-complimentary, behaving the same way in both black and white universes, but also checkerboard-complimentary, meaning they also behave the same in a checkerboarded universe. Here is a sample soup of the rule:

Code: Select all

#R B2en3cin4aciknqt5eny6ikn78/S2-ikn3-eny4cjnqyz5-cin6-en78
!
# [[ RANDOMIZE ]]

[...]

The thread for exploration of that rule is at viewtopic.php?f=11&t=7050. I have used the p34 to construct technologies such as splitters and NAND gates.
This rule is interesting because all patterns behave the same way when XOR pasted onto a checkerboard agar.

[ThePlayzr]

Is the voting going to start soon?
Nobody has made any nominations for a while, so if you want your pattern to be the OCA discovery of the year, you should do it now!

[NNlk05]

Is the voting going to start soon?
Nobody has made any nominations for a while, so if you want your pattern to be the OCA discovery of the year, you should do it now!

Here you go. It's almost September now, so I may as well start it.

Entries

#1 HexaSmodel (islptng)
First infinite nested SMOSMOS...MOS on a hexagonal grid in 32 states

#2 T-and-Tub (B2cik3-cijn4cknqr5-anqy6ekn7/S1c2acn3-aijq4cjktw5ejny6aen7c8)
(islptng, H. H. P. M. P. Cole, hibiscus, Disaster16439, I6_I6, R2INT, and others.)
First OCA recreation of APGsembly and a lot of other things engineered (i.e., a gemoid)

#3 B2-ak3ce4eikqrz5-iknq6-ek8/S1c2aek3aekn4eiknry5eiky6-ei7c8
(Yujh, NimbleRogue, vilc, WhiteHawk, unix with clock, R2INT, FWKnightship, b-engine, et al.)
A rule with more than 1100 NRSS (nonadjustable reduced speed of ship).

#4 viewtopic.php?f=11&t=3071&start=250#p210748 (AforAmpere)
The first SMOSMOSMOS in INT.

#5 viewtopic.php?f=11&t=3071&start=300#p218720 (yaochen2)
INT SMOS made of three separate 2-ship interactions.

#6 viewtopic.php?f=11&t=6649&p=216034#p216034 (NimbleRogue)
First nonadjustable ship in INT over a period of 10 billion.

#7 viewtopic.php?f=11&t=6458&start=75#p217084 (FWKnightship)
The INT rule with the second most-known NRSS and the most NRSS slopes.

#8 viewtopic.php?f=11&t=6458&start=75#p217 ... 41#p217741 (Kathina)
Unstable version of B23/S2V that can move its bounding box

#10 viewtopic.php?f=11&t=1074&p=214513#p214513 (Naszvadi)
Corderization of small 20c/44 engine in B3468/S0357

#11 viewtopic.php?f=11&t=1798&p=219626#p219626 (confocaloid)
Glider extraction from (B3/S023) DotLife flotillae.

#12 viewtopic.php?t=3670 (Various)
Several new hexagonal spaceships, with an oblique one in the outer totalistic hexagonal rule B256/S256H.

#13 viewtopic.php?f=11&t=2597&p=223249#p223249 (Lazy Boi, Naszvadi)
Turing Completeness proof of B34/S0134V and related rules.

#14 Another SMOSMOSMOS (splitterrules)
A set of 54 SMOSMOSMOSes.

#15 Checkerboard, Day and Night (R2INT)
A rule that is not only self-complementary under black/white inversion, but also under XORing with a checkerboard.

#16 Traveling T's (Various, incl. ThePlayzr, Resu, mmmmmmmmm, hotcrystal0, hibiscus, PK22, H. H. P. M. P. Cole, LuveelVoom, pifricted, AbhpzTa, rabbit, R2INT, yujh, EvinZL, FWKnightship, shuich01, PkmnQ, I6_I6, NNlk05, yyh_baboon and others the list missed.)
a Turing-Complete margolus supporting 2TFL rule with known p3, p5, p7, p8, and p11 reflectors. The most recent version of the full stamp collection can be found at User:PK22/OCA:Travelling Ts/Full Stamp Collection. This does not include the 3c/8 distaff, which can be found here.

Voting

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#​1​37 ***
#​2​15 *****

Voting closes on 2026-11-07 23:59:59 UTC-12:00 (Which is 4am for me so you may still have a few hours.)
Have fun voting!

Anthing I missed?

[NNlk05]

Some time had passed... can we start now?

[R2INT]

Some time had passed... can we start now?

The voting thread has already been created at https://conwaylife.com/forums/viewtopic.php?p=234702. Can the moderators pin the thread?

[NimbleRogue]

I will try to make some time to review the and finalize the list over the weekend, but just from a precursory glance I can see a few errors/obvious things that can be improved

There are 2 big errors:

The nomination list is still missing #9.

Katrina has her name misspelled as Kathina. Additionally the link leads to this thread not her post



Some things that should really be fixed :

nomination 16 has "and others the list missed"
I like the formatting here better "(Yujh, NimbleRogue, vilc, WhiteHawk, unix with clock, R2INT, FWKnightship, b-engine, et al.)" Additionally we could just put in less names/ narrow the nomination.

The nomination is also way to long without providing meaningful information for the nomination. I would say that if we want to talk

Nomination 2 should also have its attributions cleared up


Nominations 4 and 13 are too similar. I would vote that they either be merged into one, or at least we say something more about the SMOSMOSMOS by splitterrules other than just "another 54 SMOSMOSMOS"

[NNlk05]

I'll thank you in advance.

[Docsy]

I doubt it's still open, given it started and stopped once, but if it is, I'd like to nominate my proof that phoenix spaceships without B012a can't reach the speed limit.

Proof that phoenix spaceships without B012a cannot reach the speed limit of rules without B012a - Docsy
https://conwaylife.com/forums/viewtopic ... 07#p223307

Edit:
Proof that phoenix spaceships without B012a cannot be as fast as c/2o, c/3d, and related oblique speeds.

[NimbleRogue]

Here is my current version although there needs to be a lot of edits. I am going to give us a bit of time to work on this so I am setting the earliest time to start voting to november but it might need to be pushed back

This is the voting thread for 2025 OCA Discovery of the Year.

The voting period ends on November 30th 23:59 UTC. Any vote after the time will not be accepted.
Nomination thread here.

Entries

#1 HexaSmodelFirst Adjustable recursion SMOSMOS...MOS (islptng)

#2 T-and-Tub (B2cik3-cijn4cknqr5-anqy6ekn7/S1c2acn3-aijq4cjktw5ejny6aen7c8)
First OCA recreation of APGsembly and a lot of other things engineered (i.e., a gemoid)(islptng, H. H. P. M. P. Cole, hibiscus, Disaster16439, I6_I6, R2INT, et al.)

#3 B2-ak3ce4eikqrz5-iknq6-ek8/S1c2aek3aekn4eiknry5eiky6-ei7c8
This rule is the first know rule with over 1000 NRSS(nonadjustable reduced speed of ship) with 1150 NRSS. (Yujh, NimbleRogue, FWKnightship)

#4 The first SMOSMOSMOS in INT.
The first SMOSMOSMOS in INT. (AforAmpere)

#5 A rulespace with 54 SMOSMOSMOSes
A rulespace with 54 SMOSMOSMOSes. (splitterrules)

#6 An SMOS made of 3 different ships
An INT SMOS that has 3 generations that are SMOS made of three different ships. (yaochen2)

#7 A nonadjustable 2c/21712240845o
Highest known period of nonadjustable ship in INT, and the first known nonadjustable ship in INT with a period of 10 billion. (NimbleRogue)

#8 FWKnightship's rule 28 (B3-c4ceij5cq8/S2-in3ijnqr4ceqt5aciky6kn7e8)
This is the INT rule with the second most-known NRSS and the most NRSS slopes. (FWKnightship)

#9 Unstable version of B23/S2V
Unstable version of B23/S2V that can move its bounding box. (Katrina)

#10 Small 20c/44 corderization in B3468/S0357
Corderization of small 20c/44 engine in B3468/S0357, (Naszvadi)

#11 Glider extraction from Dotlife flotillae
Glider extraction from (B3/S023) DotLife flotillae. (confocaloid, Naszvadi)

#12 An INThex (2,1)c/5
Several new hexagonal spaceships, with an oblique one in the outer totalistic hexagonal rule B256/S256H. (Naszvadi)

#13 Turing Completeness proof
Turing Completeness proof of B34/S0134V and related rules. (Lazy Boi, Naszvadi)

#14 Checkerboard, Day and Night
A rule that is not only self-complementary under black/white inversion, but also under XORing with a checkerboard. (R2INT)

#15 Traveling T's (Various, incl. ThePlayzr, Resu, mmmmmmmmm, hotcrystal0, hibiscus, PK22, H. H. P. M. P. Cole, LuveelVoom, pifricted, AbhpzTa, rabbit, R2INT, yujh, EvinZL, FWKnightship, shuich01, PkmnQ, I6_I6, NNlk05, yyh_baboon and others the list missed.)
a Turing-Complete margolus supporting 2TFL rule with known p3, p5, p7, p8, and p11 reflectors. The most recent version of the full stamp collection can be found at User:PK22/OCA:Travelling Ts/Full Stamp Collection. This does not include the 3c/8 distaff, which can be found here.

#16 Phoenix speed proof
Proof that phoenix spaceships without B012a are slower than c/2o and c/3d (and related oblique speeds), (Docsy)

Voting

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#1 ***
#​3 **
#4 ***
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#7 *

[NimbleRogue]

Thoughts:
In general the titles and descriptions of all of the nominations can probably be refined

Thoughts on specific nominations:

• Don't like the explinations for #1, #6, #9, but other then that they are fine

• #2 could use some cleanup on the wording as it is covering too much and does not have enough explination. Can anyone who knows more about in rewrite it?

• I separated both of the SMOSMOSMOS nominations but if someone has a better idea please let me know

• I have attributed #11 to Naszvadi too because the post linked is by them but the original attribution was only to Confocaloid. Could Naszvadi explain more?

  (by confocaloid)

• I think #12 should be deleted because it seems that the only one ship of a known speed but I am open if Naszvadi have other opinions

• The nomination for #14 is way to long. There is too much being nominated and the list of contributers is too long. Can someone who has done a lot of work with it help refine it. We should be highlighting the main contributers and the main discoveries. Would this suffice for the description? "a Turing-Complete margolus supporting 2TFL rule with 5 known periods of reflector"

• I don't understand what the nomination description for #16 is supposed to say. Could Docsy Reword it so it is more descriptive?

  Proof that phoenix spaceships without B012a cannot reach the speed limit of rules without B012a

More possible nominations:

I also found a few more possible nominations to add (not formatted yet). There are probably some more that could be added especially spaceships in OT rules, and individual rules which I may not be as caught up on. Most of this list was just found from looking at the discord starboard so it also may have missed some discoveries from forum only users. Can people look through these and say which of these they want to include in the list/ more that they have thought of?

3c/5 in seeds (amling)
https://conwaylife.com/forums/viewtopic ... 99#p204899

Amoebae that grow and shrink in strange ways (NimbleRogue) (Discovered on 12/25/24, and 12/25/25 but not posted to the form until 1/6/26
https://conwaylife.com/forums/viewtopic ... 61#p223661

Research into rules that only use the birth conditions B2c3a (Docsy, Ampere,ThePlayzr)
https://conwaylife.com/forums/viewtopic ... 56#p221456

Research into rules with simple ruletables (rabbit, pifricted, FWKnightship, Antonin Duda, LuveelVoom)
https://conwaylife.com/forums/viewtopic ... 47#p219647

Crazy 2D rep that has wave-like behavior at large scales (Ampere)
https://conwaylife.com/forums/viewtopic ... 56#p215356

Lowest Known periods of INT SMOS and SMOSMOS
P5 SMOS (Katrina from discord) (Would need to repost here)
https://discord.com/channels/3579222555 ... 8058004543
P22 SMOSMOS (Ampere also from discord) (Would need to repost here)
https://discord.com/channels/3579222555 ... 0609471530

Wham World (M. I. Wright)
https://conwaylife.com/forums/viewtopic ... 74#p213574

Incredibly small double sided binary counter (LuveelVoom)
https://conwaylife.com/forums/viewtopic ... 74#p216274

[Docsy]

Oh sure, I can reword the nomination:
Proof that phoenix spaceships without B012a are slower than c/2o and c/3d (and related oblique speeds).

It's worth noting that Eppstein had proved many years ago that it was the case for rules without B012ac. Not sure if that should be noted as a caveat.

[Katrina]

Lowest periods INT SMOS and SMOSMOS
P5 SMOS (From deleted user on discord) (Would need to repost here and find the identity of the deleted user if we were to use in the nomination)
https://discord.com/channels/3579222555 ... 8058004543

Credit me for it. That was my deleted account.