## The predecessor game

A forum where anything goes. Introduce yourselves to other members of the forums, discuss how your name evolves when written out in the Game of Life, or just tell us how you found it. This is the forum for "non-academic" content.

### The predecessor game

Rules are:
1. ONE (in-game) PATTERN PER POST. If you see somebody posting multiple in-game patterns in one post, only count the first one and try to think of a different solution. This doesn't apply if you're posting out-of-game patterns, however.
2. All patterns must be predecessors of the previous pattern.
3. Try and be creative.
4. If we somehow reach a GoE, restart. Not sure if that's possible though.
I'll start (and by coincidence, all of these are going to be Diehards) with a dot spark:
`x = 1, y = 1, rule = B3/S23o!`
This post was brought to you by the letter D, for dishes that Andrew J. Wade won't do. (Also Daniel, which happens to be me.)
Current rule interest: B2ce3-ir4a5y/S2-c3-y

drc

Posts: 1664
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Location: creating useless things in OCA

### Re: The predecessor game

There should probably be some sort of limit to putting dot sparks far from the pattern, so people don't just give a standard predecessor plus 150 well-separated dots. I am adding one to my pattern below but not going overboard.
`x = 3, y = 5, rule = B3/S23bo2\$2bo\$2bo\$o!`
Physics: sophistication from simplicity.

biggiemac

Posts: 503
Joined: September 17th, 2014, 12:21 am
Location: California, USA

### Re: The predecessor game

`#C number 3x = 5, y = 7, rule = B3/S23bo\$2bo\$3bo2\$2bobo\$2bo\$o3bo!`
0.1485̅
Caenbe

Posts: 51
Joined: September 20th, 2016, 4:24 pm
Location: Nowhere Land, USA

### Re: The predecessor game

`x = 7, y = 9, rule = B3/S23bo\$2bo\$3bo\$o3bo\$5bo\$2bo\$2bobobo2\$2o4bo!`

toroidalet

Posts: 920
Joined: August 7th, 2016, 1:48 pm
Location: my computer

### Re: The predecessor game

Breaking the diagonal line extension, this is the smallest candidate I could find which allows similar sized predecessors
`x = 8, y = 10, rule = B3/S23bobo\$3bo\$bobob2o\$bo\$2obobobo\$2o5bo\$b3obo\$o2b5o\$2bo2bo\$2bo3bo!`
wildmyron

Posts: 1030
Joined: August 9th, 2013, 12:45 am

### Re: The predecessor game

Trying to make it as small as possible:
`x = 9, y = 10, rule = B3/S232b2o\$2b3o\$obo3b2o\$2bobobo\$2bobob2o\$2b2o3b2o\$o2b2obo\$7b2o\$obobo2bo\$3bo2bobo!`
Still drifting.
Bullet51

Posts: 514
Joined: July 21st, 2014, 4:35 am

### Re: The predecessor game

I feel it's going to be difficult to keep this game to manageable patterns. I'm not quite sure precisely where it became inevitable that predecessors would become complicated - it's not like the dot spark is that uncommon - but I suspect it was early on, i.e. t=-2 or maybe even t=-1.
`x = 11, y = 12bboo\$\$o3boobbo\$obboobbo\$bbobbobo\$5b3oboo\$3boo\$o3bobobo\$obo5bo\$bbobobobo\$6bobboo\$3boo!`

The next round needn't increase the bounding box again, but it may be advantageous to do so
wildmyron

Posts: 1030
Joined: August 9th, 2013, 12:45 am

### Re: The predecessor game

I wonder if we'll reach an agar...
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!
muzik

Posts: 3249
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

### Re: The predecessor game

What if someone posts a Garden of Eden?
`x = 81, y = 96, rule = LifeHistory58.2A\$58.2A3\$59.2A17.2A\$59.2A17.2A3\$79.2A\$79.2A2\$57.A\$56.A\$56.3A4\$27.A\$27.A.A\$27.2A21\$3.2A\$3.2A2.2A\$7.2A18\$7.2A\$7.2A2.2A\$11.2A11\$2A\$2A2.2A\$4.2A18\$4.2A\$4.2A2.2A\$8.2A!`
Gamedziner

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Joined: May 30th, 2016, 8:47 pm
Location: Milky Way Galaxy: Planet Earth

### Re: The predecessor game

muzik wrote:I wonder if we'll reach an agar...

Agars and other periodic patterns can't be predecessors to other patterns, pretty much by definition - I'm sure you can see why.

Gamedziner wrote:What if someone posts a Garden of Eden?

See Rule 4 in the top post.

Anybody care to make the next move? I'm hoping to try to stabilise a segment of the pattern but it's not looking hopeful.
wildmyron

Posts: 1030
Joined: August 9th, 2013, 12:45 am

### Re: The predecessor game

wildmyron wrote:Anybody care to make the next move? I'm hoping to try to stabilise a segment of the pattern but it's not looking hopeful.

Yeah, it seems to be tough to fight one's way out of space dust once it gets going. I can't seem to find a predecessor in the same bounding box with less than 48 ON cells:

`x = 11, y = 12, rule = B3/S23ob2o\$b2obobo3bo\$2o7bo\$o2b2o3b3o\$bob2o2b4o\$4bo4bo\$2b2obobo\$o\$3obo2bobo\$2bobo2bo2bo\$4b2o\$3b2obo2b2o!`

Can get down to 47 if I allow a cell to sneak out of the bounding box to the south. But it's all pretty space-dusty anyway, so I'm sticking with the above as the official Dot Spark Minus Seven / Vacuum Minus Eight.

dvgrn
Moderator

Posts: 5353
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### Re: The predecessor game

What are the chances that we'll hit a GoE in say, 3 months?
Bored of using the Moore neighbourhood for everything? Introducing the Range-2 von Neumann isotropic non-totalistic rulespace!
muzik

Posts: 3249
Joined: January 28th, 2016, 2:47 pm
Location: Scotland

### Re: The predecessor game

muzik wrote:What are the chances that we'll hit a GoE in say, 3 months?

Probably extremely high. The vast majority of large patterns are GoEs, so unless the predecessors are very carefully chosen, they are likely to eventually hit a GoE wall.

Nathaniel

Posts: 450
Joined: December 10th, 2008, 3:48 pm

### Re: The predecessor game

How do we know we haven't hit a GoE already? Has anyone at least found a predecessor?
0.1485̅
Caenbe

Posts: 51
Joined: September 20th, 2016, 4:24 pm
Location: Nowhere Land, USA

### Re: The predecessor game

Caenbe wrote:How do we know we haven't hit a GoE already? Has anyone at least found a predecessor?

We won't know for absolutely sure until somebody bothers to set up Vacuum-Minus-Eight in JLS and set a search going. It won't take long to run such a search.

Only an incredibly rare scattering of 11x12 patterns are Gardens of Eden, so basically this pattern just isn't big enough yet to have any realistic chance of making the grade.

Quite possibly we _could_ keep this game going indefinitely without hitting a GoE, if we wanted to. The trick might be to try to stabilize the center of the pattern -- or one edge of it would be better, if possible -- and run searches that move the active pattern away from the stabilized part. If the bounding box increases quickly enough, it shouldn't be too hard to dodge GoEs. One obvious way would be to find a glider synthesis of Vacuum-Minus-Eight...!

dvgrn
Moderator

Posts: 5353
Joined: May 17th, 2009, 11:00 pm

### Re: The predecessor game

`x = 13, y = 13, rule = B3/S23obob2o2bo\$o2bo3bo2bo\$2bo2bob2obobo\$bo4b2obobo\$bobobob2o\$5b2o3bobo\$bobo3bob2obo\$2b2o5b2o\$o2b3o3b2o\$o4bo2bo\$3bobobo2b2o\$4bo\$6b2o3bo!`
Still drifting.
Bullet51

Posts: 514
Joined: July 21st, 2014, 4:35 am

### Re: The predecessor game

dvgrn wrote:We won't know for absolutely sure until somebody bothers to set up Vacuum-Minus-Eight in JLS and set a search going. It won't take long to run such a search.

Ok, how do I run that search in WLS? EDIT Nvm, the answer is here:
http://conwaylife.com/forums/viewtopic.php?f=9&t=1575
0.1485̅
Caenbe

Posts: 51
Joined: September 20th, 2016, 4:24 pm
Location: Nowhere Land, USA

### Re: The predecessor game

Bullet51 wrote:
`x = 13, y = 13, rule = B3/S23obob2o2bo\$o2bo3bo2bo\$2bo2bob2obobo\$bo4b2obobo\$bobobob2o\$5b2o3bobo\$bobo3bob2obo\$2b2o5b2o\$o2b3o3b2o\$o4bo2bo\$3bobobo2b2o\$4bo\$6b2o3bo!`

I know that this thread is -ded- but hey, we need more games like this.
`x = 15, y = 17, rule = B3/S233b2obo3bo2bo\$bo6bo3bo\$2b2ob3o3b3o\$2o3b3o3b2obo\$b2o2bo4bo\$bo5bobobo\$3bo3b2ob2o2bo\$b6o3b3o\$3bo3b2o3bobo\$bo3bo4bo2bo\$o2b2o5b5o\$b2o2bo3bo2b3o\$b3obo2b3o2bo\$2bo2bob3o2b3o\$2bo4b2obob3o\$13bo\$bo4bob2o3bo!`
If you're the person that uploaded to Sakagolue illegally, please PM me.
`x = 17, y = 10, rule = B3/S23b2ob2obo5b2o\$11b4obo\$2bob3o2bo2b3o\$bo3b2o4b2o\$o2bo2bob2o3b4o\$bob2obo5bo2b2o\$2b2o4bobo2b3o\$bo3b5ob2obobo\$2bo5bob2o\$4bob2o2bobobo!`

(Check gen 2)

Saka

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Location: In the kingdom of Sultan Hamengkubuwono X

### Re: The predecessor game

Does JLS work with Java 8?
SoL : FreeElectronics : DeadlyEnemies : 6a-ite : Rule X3VI
what is “sesame oil”?

Rhombic

Posts: 1056
Joined: June 1st, 2013, 5:41 pm

### Re: The predecessor game

Saka wrote:
Bullet51 wrote:
`x = 13, y = 13, rule = B3/S23obob2o2bo\$o2bo3bo2bo\$2bo2bob2obobo\$bo4b2obobo\$bobobob2o\$5b2o3bobo\$bobo3bob2obo\$2b2o5b2o\$o2b3o3b2o\$o4bo2bo\$3bobobo2b2o\$4bo\$6b2o3bo!`

I know that this thread is -ded- but hey, we need more games like this.
`x = 15, y = 17, rule = B3/S233b2obo3bo2bo\$bo6bo3bo\$2b2ob3o3b3o\$2o3b3o3b2obo\$b2o2bo4bo\$bo5bobobo\$3bo3b2ob2o2bo\$b6o3b3o\$3bo3b2o3bobo\$bo3bo4bo2bo\$o2b2o5b5o\$b2o2bo3bo2b3o\$b3obo2b3o2bo\$2bo2bob3o2b3o\$2bo4b2obob3o\$13bo\$bo4bob2o3bo!`

Or we could do a long line of cells connected diagonally. Much simpler.
EDIT:
If you have 3 green cells as shown in the pattern below, then it won't work. I figured it out with logic and Life's properties, can you see why?:
`x = 15, y = 17, rule = LifeHistory3B2DBD3BD2BDB\$BD6BD3BD2B\$2B2DB3D3B3DB\$2D3B3D3B2DBD\$B2D2BD4BD4B\$BD5BDBDBD3B\$3BD3B2DB2D2BD\$B6D3B3D2B\$3BD3B2D3BDBD\$BD3BD4BD2BDB\$D2B2D5B5D\$B2D2BD3BD2B3D\$B3DBD2B3DB3A\$2BD2BDB3D2B3D\$2BD4B2DBDB3D\$13BDB\$BD4BDB2D3BDB!`

Invalidated:
`x = 15, y = 17, rule = LifeHistory3B2DBD3BD2BDB\$BD6BD3BD2B\$2B2DB3D3B3DB\$2D3B3D3B2DBD\$B2D2BD4BD4B\$BD5BDBDBD3B\$3BD3B2DB2D2BD\$B6D3B3D2B\$3BD3B2D3BDBD\$BD3BD4BD2BDB\$D2B2D5B5D\$B2D2BD3BD2B3D\$B3DBD2B3D2BDB\$2BD2BDB3D2B3D\$2BD4B2DBDB3D\$12B3A\$BD4BDB2D3BDB!`

wwei23

Posts: 935
Joined: May 22nd, 2017, 6:14 pm
Location: The (Life?) Universe

### Re: The predecessor game

Saka wrote:I know that this thread is -ded- but hey, we need more games like this.

Continue the infinite path:
viewtopic.php?f=12&t=3021

wwei23

Posts: 935
Joined: May 22nd, 2017, 6:14 pm
Location: The (Life?) Universe

### Re: The predecessor game

wwei23 wrote:
Saka wrote:
Bullet51 wrote:
`x = 13, y = 13, rule = B3/S23obob2o2bo\$o2bo3bo2bo\$2bo2bob2obobo\$bo4b2obobo\$bobobob2o\$5b2o3bobo\$bobo3bob2obo\$2b2o5b2o\$o2b3o3b2o\$o4bo2bo\$3bobobo2b2o\$4bo\$6b2o3bo!`

I know that this thread is -ded- but hey, we need more games like this.
`x = 15, y = 17, rule = B3/S233b2obo3bo2bo\$bo6bo3bo\$2b2ob3o3b3o\$2o3b3o3b2obo\$b2o2bo4bo\$bo5bobobo\$3bo3b2ob2o2bo\$b6o3b3o\$3bo3b2o3bobo\$bo3bo4bo2bo\$o2b2o5b5o\$b2o2bo3bo2b3o\$b3obo2b3o2bo\$2bo2bob3o2b3o\$2bo4b2obob3o\$13bo\$bo4bob2o3bo!`

Or we could do a long line of cells connected diagonally. Much simpler.

No, that' s an awful idea.
self-deprecatory joke because I started the diagonal line in the first place
And, I'm just throwing this out there: we could restart.
0.1485̅
Caenbe

Posts: 51
Joined: September 20th, 2016, 4:24 pm
Location: Nowhere Land, USA

### Re: The predecessor game

Restart a pure-glider generator:
`x = 8, y = 3, rule = B3/S23o4b2o\$b2o3b2o\$2o3bo!`
SoL : FreeElectronics : DeadlyEnemies : 6a-ite : Rule X3VI
what is “sesame oil”?

Rhombic

Posts: 1056
Joined: June 1st, 2013, 5:41 pm

### Re: The predecessor game

Rhombic wrote:Restart a pure-glider generator:
`x = 8, y = 3, rule = B3/S23o4b2o\$b2o3b2o\$2o3bo!`

A tough predecessor of that:
`x = 17, y = 19, rule = B3/S233bo\$3bo4b2ob2o\$2b3ob9o\$4ob8o\$2b9ob3o\$9o3bo\$2b2o2b2o4b3o\$5b2o2bob2o\$6bo4bo\$6bo2bo\$6b2o3bo\$5b6o\$5b7o\$6bo4b3obo\$5bo3bob4o\$10b5obo\$11b4o\$9bo5bo\$13bo!`
Things to work on:
- Find a (7,1)c/8 ship in a Non-totalistic rule (someone please search the rules)
- Find a C/10 in JustFriends
- Find a C/10 in Day and Night
AforAmpere

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