### Blockic Seeds

Posted:

**June 23rd, 2013, 1:31 pm**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:
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:
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:
pulsar with cleanup the hard way:
pulsar without cleanup the easy way:
It is desirable to minimize the number of blocks needed, as with the pulsar.

8-block paperclip:
3-block glider shift to a different lane:
5-block glider shift by a half-track:
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.

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

Code: Select all

```
x = 21, y = 27, rule = LifeHistory
8.2A$8.2A7$7.2A4.2A$7.2A4.2A$2A$2A14.2A$16.2A12$18.3A$18.A$19.A!
```

Blockic seeds for LWSS, MWSS, and HWSS are scattered about in other topics, so I have collected the best ones here:

Code: Select all

```
x = 369, y = 212, rule = LifeHistory
.D9.D7.D3.6D4.6D199.2A$.D9.D7.D3.D9.D204.2A$.D9.D7.D3.D9.D131.A$.D9.D
7.D3.D9.D132.A$.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.D
295.A$.6D5.2D3.2D4.6D4.6D296.A$96.2A223.2A10.3A31.2A$87.2A7.2A223.2A
44.2A$87.2A176.2A$82.2A181.2A94.2A$82.2A277.2A$241.A86.2A2.2A$181.2A
59.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.D3.6D4.6D
53.2A$D7.D2.D3.D3.D8.D9.D53.2A$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.D
4.D7.D3.6D4.6D$.D4.D4.D7.D3.D9.D$.D4.D4.D7.D3.D9.D$.D4.D4.D7.D3.D9.D
44.2A13.2A$.6D4.D3.D3.D3.6D4.6D39.2A13.2A$.6D4.D3.D3.D3.6D4.6D$.D4.D
4.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!
```

It may take extra blocks to do cleanup:

aircraft carrier:

Code: Select all

```
x = 84, y = 28, rule = B3/S23
bo49bo$2bo49bo$3o47b3o$31b2o$31b2o$69b2o$19b2o48b2o$19b2o$66b2o$66b2o
16$32b2o48b2o$17b2o3b2o8b2o33b2o3b2o8b2o$17b2o3b2o43b2o3b2o!
```

Code: Select all

```
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!
```

Code: Select all

```
x = 25, y = 21, rule = LifeHistory
A$.2A$2A13$23.2A$23.2A3$23.2A$23.2A!
```

8-block paperclip:

Code: Select all

```
x = 29, y = 30, rule = LifeHistory
16.2A$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!
```

Code: Select all

```
x = 20, y = 24, rule = LifeHistory
10.2A$10.2A6$2A$2A9$7.2A$7.2A3$17.3A$17.A$18.A!
```

Code: Select all

```
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!
```

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.