## Blockic Seeds

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.

### Blockic Seeds

What is possible with only one glider and a pile of blocks? Anything that glider synthesis can do, a blockic seed can do, although it may be a much larger starting pattern. But some Blockic seeds are very compact and can be more convenient because blocks can wait to be triggered at any time by a single glider. Blockic synthesis may be able to produce objects that glider synthesis can't, although it is an open problem whether glider synthesis can produce any desired still life result.

For example here is a way to produce an unusual still life with 5 blocks:
`x = 21, y = 27, rule = LifeHistory8.2A\$8.2A7\$7.2A4.2A\$7.2A4.2A\$2A\$2A14.2A\$16.2A12\$18.3A\$18.A\$19.A!`

It would take a lot of synchronized gliders to produce the same result.

Blockic seeds for LWSS, MWSS, and HWSS are scattered about in other topics, so I have collected the best ones here:
`x = 369, y = 212, rule = LifeHistory.D9.D7.D3.6D4.6D199.2A\$.D9.D7.D3.D9.D204.2A\$.D9.D7.D3.D9.D131.A\$.D9.D7.D3.D9.D132.A\$.D9.D3.D3.D3.6D4.6D125.3A\$.D9.D3.D3.D3.6D4.6D57.A\$.D9.D3.D3.D8.D9.D58.A3.2A\$.D9.D2.D.D2.D8.D9.D56.3A3.2A\$.6D4.4D.4D8.D9.D295.A\$.6D5.2D3.2D4.6D4.6D296.A\$96.2A223.2A10.3A31.2A\$87.2A7.2A223.2A44.2A\$87.2A176.2A\$82.2A181.2A94.2A\$82.2A277.2A\$241.A86.2A2.2A\$181.2A59.A85.2A2.2A\$86.2A88.2A3.2A57.3A16.2A\$86.2A88.2A81.2A\$172.2A\$172.2A\$182.2A75.2A81.2A\$167.2A13.2A59.2A14.2A81.2A\$167.2A74.2A3\$257.2A\$257.2A55\$180.2A\$180.2A3\$80.BA80.A13.2A\$79.B.BA80.A12.2A\$80.3A78.3A24.2A\$188.2A\$.2D3.2D3.D7.D3.6D4.6D\$4D.4D2.D7.D3.D9.D\$D2.D.D2.D2.D7.D3.D9.D\$D3.D3.D2.D7.D3.D9.D\$D3.D3.D2.D3.D3.D3.6D4.6D\$D3.D3.D2.D3.D3.D3.6D4.6D53.2A\$D7.D2.D3.D3.D8.D9.D53.2A\$D7.D2.D2.D.D2.D8.D9.D\$D7.D2.4D.4D8.D9.D\$D7.D3.2D3.2D4.6D4.6D131.2A\$158.2A10.2A\$79.2A77.2A\$79.2A\$100.2A\$100.2A\$75.2A\$75.2A3\$167.2A\$167.2A2\$101.2A\$101.2A57\$73.A\$74.A\$72.3A8\$.D4.D4.D7.D3.6D4.6D\$.D4.D4.D7.D3.D9.D\$.D4.D4.D7.D3.D9.D\$.D4.D4.D7.D3.D9.D44.2A13.2A\$.6D4.D3.D3.D3.6D4.6D39.2A13.2A\$.6D4.D3.D3.D3.6D4.6D\$.D4.D4.D3.D3.D8.D9.D\$.D4.D4.D2.D.D2.D8.D9.D63.2A\$.D4.D4.4D.4D8.D9.D63.2A\$.D4.D5.2D3.2D4.6D4.6D6\$100.2A\$100.2A2\$80.2A\$80.2A6\$94.2A\$94.2A4\$84.2A\$84.2A!`

As far as I know it takes at least 5 blocks to produce a clean spaceship, but 4 blocks seems possible.

It may take extra blocks to do cleanup:
aircraft carrier:
`x = 84, y = 28, rule = B3/S23bo49bo\$2bo49bo\$3o47b3o\$31b2o\$31b2o\$69b2o\$19b2o48b2o\$19b2o\$66b2o\$66b2o16\$32b2o48b2o\$17b2o3b2o8b2o33b2o3b2o8b2o\$17b2o3b2o43b2o3b2o!`

pulsar with cleanup the hard way:
`x = 29, y = 36, rule = LifeHistory.A\$2.A\$3A6\$19.2A\$19.2A3\$20.2A\$20.2A5\$10.2A\$10.2A3\$18.2A\$18.2A\$27.2A\$27.2A9\$23.2A\$23.2A!`

pulsar without cleanup the easy way:
`x = 25, y = 21, rule = LifeHistoryA\$.2A\$2A13\$23.2A\$23.2A3\$23.2A\$23.2A!`

It is desirable to minimize the number of blocks needed, as with the pulsar.

8-block paperclip:
`x = 29, y = 30, rule = LifeHistory16.2A\$16.2A4\$2A\$2A\$10.2A\$10.2A\$3.2A\$3.2A14.2A6.2A\$19.2A6.2A12\$21.3A\$21.A\$22.A\$2.2A\$2.2A\$9.2A\$9.2A!`

3-block glider shift to a different lane:
`x = 20, y = 24, rule = LifeHistory10.2A\$10.2A6\$2A\$2A9\$7.2A\$7.2A3\$17.3A\$17.A\$18.A!`

5-block glider shift by a half-track:
`x = 29, y = 24, rule = LifeHistory.A\$2.A\$3A6\$19.2A\$19.2A3\$20.2A\$20.2A5\$10.2A15.2A\$10.2A15.2A3\$18.2A\$18.2A!`

Post any interesting Blockic seeds or improvements in this thread.
Blockic seeds that result in multiple gliders should be posted in the Blockic Splitters thread.

EDIT:
Blockic seeds are better if the blocks are not too close to each other. That way the seed itself is more easily constructed. Two empty cells between blocks is good. The Seeds of Destruction program does this for you.
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

knightlife wrote:For example here is a way to produce an unusual still life with 5 blocks:

It works just as well with 4 blocks:
`x = 21, y = 27, rule = B3/S238b2o\$8b2o7\$7b2o4b2o\$7b2o4b2o\$2o\$2o13\$18b3o\$18bo\$19bo!`

It's really a pseudo still life though.

Mats

Posts: 42
Joined: August 10th, 2010, 7:40 am
Location: Stockholm, Sweden

### Re: Blockic Seeds

This doesn't use entirely blocks, but it still produces a HWSS from four still lifes:
`x = 15, y = 18, rule = B3/S235b2o\$4bo2bo\$5bobo\$6bo\$12bo\$11bobo\$11bobo\$2o10bo\$2o7\$13b2o\$5b2o5b2o\$5b2o7bo!`
I Like My Heisenburps! (and others)

Extrementhusiast

Posts: 1717
Joined: June 16th, 2009, 11:24 pm
Location: USA

### Re: Blockic Seeds

Extrementhusiast wrote:produces a HWSS

NIce. Not Blockic but a quick and compact reaction (14x14 BB if cleanup block is moved closer).
`x = 44, y = 14, rule = B3/S235b2o28b2o\$4bo2bo26bo2bo\$5bobo27bobo\$6bo29bo\$12bo29bo\$11bobo27bobo\$11bobo27bobo\$2o10bo17b2o10bo\$2o28b2o3\$9b2o28b2o\$2o6b2o21b2o5b2o\$2o8bo20b2o7bo!`
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

Convert LWSS to glider:
`x = 23, y = 7, rule = B3/S235b2o\$5b2o2\$2o17bo\$2o16bo\$18bo3bo\$18b4o!`
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

knightlife wrote:Convert LWSS to glider

Inspired by this, here is a simple stable MWSS to glider converter:
`x = 43, y = 9, rule = B3/S2335b2o\$35bobob2obo\$37bobob2o\$37b2o\$20bo\$b3o14bo3bo\$5o18bo16b2o\$3ob2o12bo4bo16b2o\$3b2o14b5o!`
-Matthias Merzenich
Sokwe
Moderator

Posts: 1320
Joined: July 9th, 2009, 2:44 pm

### Re: Blockic Seeds

Sokwe wrote:Inspired by this

In 16 minutes! And the glider synthesis?

Any stable G ---> xWSS can now be made into a stable reflecting/converting MWSS ---> xWSS
(x = L, M, or H)
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

knightlife wrote:And the glider synthesis?

http://web.archive.org/web/200610161444 ... 13-187.rle
Ivan Fomichev

codeholic
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Location: Hamburg, Germany

### Re: Blockic Seeds

Here is a 7-glider synthesis using a different still life and borrowing from your synthesis:
`x = 115, y = 60, rule = B3/S23112bo\$100bobo8bo\$100b2o9b3o\$101bo25\$2bo\$o3bo\$5bo\$o4bo\$b5o8\$56b2o\$57b2o\$56bo2\$110bo\$100b3o6b2o\$100bo8bobo\$101bo7\$112b2o\$112bobo\$112bo\$61b3o\$63bo\$62bo!`
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

2G ---> LWSS (if only these blocks were catalysts)
`x = 20, y = 14, rule = B3/S2317bo\$17bobo\$2bo14b2o\$3b2o\$2b2o4\$2o\$2o3\$4b2o\$4b2o!`

If a solution is found, then LWSS guns could be made with two glider guns instead of three.
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

knightlife wrote:If a solution is found, then LWSS guns could be made with two glider guns instead of three.

Actually, it only takes one right now: gun->glider->Herschel->LWSS. But the minimum possible period is currently quite high. (So two would be more useful.)
I Like My Heisenburps! (and others)

Extrementhusiast

Posts: 1717
Joined: June 16th, 2009, 11:24 pm
Location: USA

### Re: Blockic Seeds

Large patterns many times contain LWSS guns within them that I notice still use the 3-glider synthesis of an LWSS (although there are many clever ways to avoid that type of synthesis in periodic circuitry). A 2-glider synthesis could be useful if the necessary catalyst itself has a simple enough synthesis and the recovery period is low enough (low enough to handle p30 streams would be nice)... I realize this is a tall order. It would probably be better to spend more time searching for a small (50 x 50 or less) stable G ---> LWSS than a catalyst for the converter posted above. It would certainly be more useful.
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

Blockic 90 degree reflector for LWSS:
`x = 26, y = 13, rule = B3/S2314b2o\$14b2o2\$o2bo\$4bo\$o3bo\$b4o15b2o\$20b2o2b2o\$24b2o3\$20b2o\$20b2o!`
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

knightlife wrote:It would probably be better to spend more time searching for a small (50 x 50 or less) stable G ---> LWSS than a catalyst for the converter posted above. It would certainly be more useful.

Or a similarly small stable Herschel-to-LWSS, more likely. I keep seeing spontaneous LWSSes appear from slight modifications of traveling B-heptominoes -- it seems really surprising that a direct H->LWSS hasn't cropped up by this time, since there wouldn't be any need for a "bait" still life to get things going.

Glider-to-LWSS is a bit harder, because you can't seem to make adjustments to a passing glider with stable conduits the way you can with a Herschel. There aren't any good sparks to get hold of... so you can either kill the glider with an eater, catch it as a boat-bit, or smash it into something small and basically just cross your fingers that you can get whatever-it-is back again in the same place.

Another search that would be really interesting with Bellman would be a converter for a switch-engine 'swimmer' -- turn it into a glider, Herschel, or *WSS. The best I could come up with in antediluvian times -- sometime in early 5 B.B. [Before Bellman] -- was this:

`x = 159, y = 118, rule = B3/S23120bo\$119bobo\$120bo2\$118b5o\$117bo4bo\$116bo2bo\$22b2o92bob2o27bo\$21bobo87bob2obo5bo10b2o10b3o\$22bo88b2obobo4bobo9b2o9bo\$82b2o30bob2o2bo2bo20b2o8b2o\$74b2o6bo31bo6b2o31bo\$74b2o4bobo29b3o37bobo\$80b2o4b2o23bo40b2o\$49bo35bobo23b2o\$30b2o16bobo32b3obobo\$29bobo16bobo31bo5b2o2b2o\$30bo18bo32b2o8b2o58b2obo\$60bo91b2ob3o\$60bo97bo\$bo56b3o9b2o80b2ob3o\$obo7b2o46bo11b2o49b2o30bobo\$2o8bobo10b3o95b2o30bobo\$9bo28b2o114bo\$10bo2bo3bo5bo3bo9bobo\$13bo2bobo5b4o10bo19b2o\$11b3o3bo9bo30b2o3bo66b2o\$12b2o48bobo65b2o\$9bo53bobo58b2o\$8bobo54bo38b2o19bo\$8b2o55b2o37bobo16bo5bo\$46b2o58bo16b2o3bobo\$45bobo58b2o21bo\$46bo79b3o\$126bo2\$17bo\$16bobo73b2o\$16b2o74b2o\$54b2o\$53bobo\$54bo32b2o\$87bobo\$89bo\$25bo63b2o\$24bobo\$24b2o50b2o\$62b2o12b2o\$61bobo\$62bo\$132bo\$131bobo\$33bo96bo2bo\$32bobo96b2o\$32b2o\$70b2o\$69bobo\$70bo\$153b2o\$153b2o\$41bo107b2o\$40bobo106b2o\$40b2o93b2o\$78b2o55b2o\$77bobo\$78bo3\$49bo\$48bobo72b2o\$48b2o73b2o\$86b2o57b2o\$85bobo57bo\$86bo59b3o\$148bo2\$57bo\$56bobo\$56b2o\$94b2o\$93bobo42b2o\$94bo43bo\$139b3o\$141bo\$65bo\$64bobo\$64b2o\$102b2o\$101bobo\$102bo3\$73bo\$72bobo\$72b2o6\$81bo\$80bobo\$80b2o6\$89bo\$88bobo\$88b2o\$109b2obo\$109b2ob3o\$115bo\$109b2ob3o\$110bobo\$110bobo\$111bo!`

Of course it would be nice to have a direct H-to-swimmer as well -- a small H-to-S and a small S-to-H would allow much higher-period signal loops in a much smaller area. But H-to-S might be a bit more of a pipe dream than H-to-LWSS -- switch engines show up rarely enough that a special-purpose search program might be needed, maybe with a distributed search.

To try to get back to this thread's original topic, though, I wonder if a swimmer can do anything useful in a one-time Blockic context? It can certainly travel with no problem, as long as the channel of blocks holds out:

`x = 70, y = 70, rule = B3/S2312b2o\$12b2o5\$6b3o2\$6bo3bo9b2o\$7b4o9b2o\$10bo6\$28b2o\$28b2o3\$2o\$2o3\$36b2o\$36b2o3\$8b2o\$8b2o3\$44b2o\$44b2o3\$16b2o\$16b2o3\$52b2o\$52b2o3\$24b2o\$24b2o3\$60b2o\$60b2o3\$32b2o\$32b2o3\$68b2o\$68b2o3\$40b2o\$40b2o7\$48b2o\$48b2o!`

dvgrn
Moderator

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### Re: Blockic Seeds

dvgrn wrote:
knightlife wrote:It would probably be better to spend more time searching for a small (50 x 50 or less) stable G ---> LWSS than a catalyst for the converter posted above. It would certainly be more useful.

Or a similarly small stable Herschel-to-LWSS, more likely. I keep seeing spontaneous LWSSes appear from slight modifications of traveling B-heptominoes -- it seems really surprising that a direct H->LWSS hasn't cropped up by this time, since there wouldn't be any need for a "bait" still life to get things going.

I have to agree that a Herschel to LWSS may be easier to find especially after I have pretty much done an exhaustive search for what is possible with a glider and 2 blocks (it is quite limited). A Herschel and catalyst combo could avoid the sacrificial block(s) or "bait" as you say (I am still assuming blocks are the easiest bait to restore). A Bellman type catalyst does seem necessary in either case.

Glider eaters have little or no spark. The "R" eaters that MikeP posted have huge sparks in comparison. It would not surprise me if a catalyst could complete a stable R-to-LWSS.

`x = 20, y = 14, rule = B3/S2318b2o\$bo15bobo\$b2o14b2o\$2o4\$12b2o\$2bo2bo3bo2bo\$2b4o2bobobobo\$6b3obo2b2o\$4b2o4bo\$4bo2b3o\$6b2o!`

There is a glider-block-block pattern that makes an LWSS but there is a lot of debris to clean up.

I guess I am still wishing/searching for direct spaceship converters. Conduits just seem to get in the way.
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

Blockic H to LWSS uses just 3 blocks:
`x = 47, y = 12, rule = LifeHistory.A\$2.2A30.D\$3.2A29.D.D\$5.A28.3D\$5A2.2A27.D2A\$3.A3.2A28.2A\$15.2A28.2A\$15.2A28.2A3\$11.2A28.2A\$11.2A28.2A!`

The pre-H pattern is shown 6 generations before it would have become a Herschel.

EDIT:
This is probably not new since it uses the old LOM + 2 blocks recipe to make the LWSS.
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

Although this is probably old news, what were some soups that produced XWSSs? I found my HWSS reaction from an "explosion".
I Like My Heisenburps! (and others)

Extrementhusiast

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Joined: June 16th, 2009, 11:24 pm
Location: USA

### Re: Blockic Seeds

What are the possible outcomes of a single glider hitting a single block? I can't remember.
When will a 2x2 gun be discovered...?
Guess what Chuck Norris did when he heard about Conway's game of life? He built a replicator.
Does LongLife have spaceships?
eaglgenes101

Posts: 14
Joined: June 3rd, 2011, 3:16 pm

### Re: Blockic Seeds

eaglgenes101 wrote:What are the possible outcomes of a single glider hitting a single block? I can't remember.

Mutual annihilation, block, honey-farm, and pi heptomino.
Shannon Omick
skomick

Posts: 72
Joined: February 11th, 2011, 11:41 pm

### Re: Blockic Seeds

skomick wrote:
eaglgenes101 wrote:What are the possible outcomes of a single glider hitting a single block? I can't remember.

Mutual annihilation, block, honey-farm, and pi heptomino.

More specifically, which directions can a glider shift a block?
When will a 2x2 gun be discovered...?
Guess what Chuck Norris did when he heard about Conway's game of life? He built a replicator.
Does LongLife have spaceships?
eaglgenes101

Posts: 14
Joined: June 3rd, 2011, 3:16 pm

### Re: Blockic Seeds

eaglgenes101 wrote:More specifically, which directions can a glider shift a block?

There are just 6 ways how a glider can run into a block, why don't you simply try them out?

`x = 132, y = 20, rule = LifeHistory9\$13.2A18.2A18.2A18.2A18.2A18.2A\$13.2A18.2A18.2A18.2A18.2A18.2A3\$11.3A18.3A18.3A18.3A18.3A18.3A\$11.A20.A20.A20.A20.A20.A\$12.A20.A20.A20.A20.A20.A!`
Kasuha

Posts: 54
Joined: November 1st, 2012, 11:39 am

### Re: Blockic Seeds

5-block seed makes LWSS and a 90-degree glider:
`x = 15, y = 16, rule = B3/S236bo\$7bo\$5b3o7\$5b2o\$2o3b2o\$2o7b2o\$9b2o2b2o\$13b2o\$4b2o\$4b2o!`

5-block seed makes LWSS and 4 gliders:
`x = 40, y = 36, rule = B3/S235bo\$6bo\$4b3o15\$2o\$2o2\$17b2o\$17b2o5\$38b2o\$38b2o6\$33b2o\$18b2o13b2o\$18b2o!`
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

3-block seed makes 4 barges:
`x = 13, y = 19, rule = B3/S23bo\$2bo\$3o6\$11b2o\$11b2o\$b2o\$b2o6\$6b2o\$6b2o!`

4-block seed for MWSS + 2G (not clean):
`x = 21, y = 21, rule = B3/S235b2o\$5b2o5\$bo\$2bo\$3o3\$19b2o\$19b2o4\$16b2o\$16b2o2\$9b2o\$9b2o!`

Cleanup with stable reflectors:
`x = 95, y = 134, rule = B3/S2387bob2o\$87b2obo2\$85b5o\$85bo4bo2b2o\$88bo2bo2bo\$88b2obobo\$85bo5bob2o\$84bobo4bo\$84bo2bo2b2o\$85b2o9\$77b2o\$77b2o8\$63b2o22b2o\$62bo2bo21bo\$63b2o23b3o\$90bo6\$80b2o\$80bo\$81b3o\$83bo2\$40b2o\$40b2o5\$36bo\$37bo\$35b3o3\$54b2o\$54b2o4\$51b2o\$51b2o2\$44b2o\$44b2o13\$9bo\$9b3o\$12bo\$11b2o3\$2ob2o\$2obo85bo\$3bo67b2o14b5o\$3b3o4b2o60bo13bo5bo\$b2o3bo3b2o60bobo12b3o2bo\$o2b4o66b2o15bob2o\$2obo15b2o66b4o2bo\$bo2b3o12bobo60b2o3bo3b2o\$bo5bo13bo60b2o4b3o\$2b5o14b2o67bo\$4bo85bob2o\$89b2ob2o3\$81b2o\$81bo\$82b3o\$84bo13\$47bo\$45b3o\$44bo\$44b2o7\$34b2o\$33bobo5b2o\$33bo7b2o\$32b2o2\$46bo\$42b2obobo\$41bobobobo\$38bo2bobobob2o\$38b4ob2o2bo\$42bo4bo\$38b2o2bob3o\$38b2o3b2o!`
knightlife

Posts: 566
Joined: May 31st, 2009, 12:08 am

### Re: Blockic Seeds

Disregard this.
Last edited by Extrementhusiast on August 14th, 2013, 7:01 pm, edited 1 time in total.
I Like My Heisenburps! (and others)

Extrementhusiast

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Joined: June 16th, 2009, 11:24 pm
Location: USA

### Re: Blockic Seeds

knightlife wrote:Blockic synthesis may be able to produce objects that glider synthesis can't, although it is an open problem whether glider synthesis can produce any desired still life result.

Since blocks can be made from gliders, the only way one could find a blockic synthesis that can make something gliders can't, is if one finds an arrangement of blocks that can't be built from gliders. Although I don't think there has been any rigorous proof that such an arrangement is impossible, it's fairly unlikely,
mniemiec

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