LifeHistory's killing cells

[Jackk]

I find these cells to be fascinating. Even though they aren't normally used in normal patterns, a bit of tinkering around found me this:

Code: Select all

x = 9, y = 5, rule = LifeHistory
F7BF$.2B3A2B$2BA3BA2B$.B2AB2AB$F.5B.F!

This moves a house forward at 6c/17.
I also found a 90 degree turner:

Code: Select all

x = 17, y = 14, rule = LifeHistory
10.F$F.B.F2.B.3B$4B2.7BF$16B$15BFB$17B$15BFB$16B$4B.11B$F.B.F.F7BF$7.
2B3A2B$6.2BA3BA2B$7.B2AB2AB$6.F.5B.F!

Plus a duplicator:

Code: Select all

x = 17, y = 59, rule = LifeHistory
4.F7BF$5.7B$4.F7BF$5.7B$4.9B$5.7B$4.F7BF$5.7B$4.F7BF$5.7B$4.9B$5.7B$
4.F7BF$5.7B$4.F7BF$5.7B$4.9B$5.7B$4.F7BF$5.7B$4.F7BF$5.7B$4.9B$5.7B$
4.F7BF$5.8B$F.B.F9B$.13B$B2A12B$BABA10B$3BA9BF$BABA9B$B2A9B$.10BF$F.B
.F7B$5.F6B$5.6BF$5.8B$4.F.6BF$5.7B$4.9B$5.7B$4.F7BF$5.7B$4.F.6BF$5.7B
$4.9B$5.7B$4.F7BF$5.7B$4.F.5B.F$5.7B$4.9B$5.7B$4.F7BF$5.7B$4.F.5B.F$
5.7B$4.9B!

And a surprisingly simple Pi => glider:

Code: Select all

x = 9, y = 16, rule = LifeHistory
F.5B.F$.B2AB2AB$2BA3BA2B$.2B3A2B$F7BF$.7B$F.5B.F$.7B$9B$8B$7B.F$B3.B$
3.3B$3.B2AB$4.2A!

This uses just a block and 3 killer cells!

With these mechanisms, you can build what I like to call "Pi tracks".
Here's an example:

Code: Select all

x = 131, y = 138, rule = LifeHistory
6$47.3B$46.BFBF2B64.F$46.2BA3BF.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B
.F.F.B.F.F.B.F.F.B.F2.B.BAB$45.FB3A6B.5B.5B.5B.5B.5B.5B.5B.5B.5B2.3B
3ABF$45.2BAB2A63B4A4B$44.B2A66B2A3B2ABFB$43.F3A65B2A5B2A2B$44.B2A66B
2A3B2ABFB$45.B2AB2A63BA3BA3B$44.3B3A6B.5B.5B.5B.5B.5B.5B.5B.5B.5B.11B
$45.3BA3BF.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F.
F7BF$46.6B61.7B$44.F.5B.F59.9B$45.7B61.7B$44.9B59.F.5B.F$45.7B61.7B$
44.F7BF59.F7BF$45.7B61.7B$44.F.5B.F59.9B$45.7B61.7B$44.9B59.F.5B.F$
45.7B61.7B$44.F7BF59.F7BF$45.7B61.7B$44.F.5B.F59.9B$45.7B61.7B$44.9B
59.F.5B.F$45.7B61.7B$44.F7BF59.F7BF$45.7B61.7B$44.F.5B.F59.9B$45.7B
61.7B$44.9B59.F.5B.F$45.7B61.7B$44.F7BF59.F7BF$45.7B61.7B$44.F.5B.F
59.9B$6.3B4.B31.7B61.7B$5.BFBF6BF28.9B59.F.5B.F$5.6B.5B28.7B61.7B$4.F
13BF25.F7BF59.F7BF$4.17B24.7B61.7B$3.17BFB22.F.5B.F59.9B$2.F19B23.7B
61.7B$2.18BFB22.9B59.F7BF$.20B24.7B61.7B$2.19B23.F7BF59.F7BF$2.B.7BF
2B3A2B.B24.7B61.7B$2.11BA3BA3B23.F.5B.F59.9B$2.11B2A3BA3B23.7B61.7B$.
BF16BAB23.9B59.F7BF$.15BA3BF24.7B61.7B$.BF13BA2BA24.F7BF59.F7BF$2.11B
2ABA2B26.7B61.7B$4.F8BA2BABF25.F.5B.F59.9B$6.5B.2BABAB27.7B61.7B$7.F
6BFBFB26.9B59.F7BF$9.B4.3B28.7B61.7B$44.F7BF59.F7BF$45.7B61.7B$44.F.
5B.F59.9B$45.7B61.7B$44.9B59.F7BF$45.7B61.7B$44.F7BF59.F7BF$45.7B61.
7B$44.F.5B.F59.9B$45.7B61.7B$44.9B59.F7BF$45.7B61.8B$44.F7BF.F.B.F.F.
B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F3BA5B$43.11B.5B.5B
.5B.5B.5B.5B.5B.5B.5B.6B3A4B$43.3BA3BA63B2AB2A4B$42.BFB2A3B2A66B2A2B$
42.2B2A5B2A65B3AF$42.BFB2A3B2A66B2AB$43.4B4A63B2ABA2B$45.FB3A3B2.5B.
5B.5B.5B.5B.5B.5B.5B.5B.6B3ABF$47.BAB.B2.F.B.F.F.B.F.F.B.F.F.B.F.F.B.
F.F.B.F.F.B.F.F.B.F.F.B.F.F.B.F3BA3B$48.F64.F6B$113.6BF$113.8B$112.F.
6BF$113.7B$112.9B$113.7B$112.F7BF$113.7B$112.F.6BF$113.7B$112.9B$113.
7B$112.F7BF$113.7B$112.F.5B.F$113.7B$112.9B$113.7B$112.F7BF$113.7B$
112.F.5B.F$113.7B$112.9B$113.7B$112.F7BF$113.7B$112.F.5B.F$113.7B$
112.9B$113.7B$112.F7BF$113.7B$112.F.5B.F$113.7B$112.A5BA2B$111.A6BAB$
110.B3A5B.F$109.4B3.B$108.4B3.3B$107.4B4.B2AB$106.4B6.2A$105.4B$104.
4B$103.4B$102.4B$101.4B$99.F4B$99.4B$100.3B!

Thsi is a large version of a p188 glider gun - I know it can be condensed.
If anyone has found any of this before, well, kudos to them.

And could any of these be condensed?

[Extrementhusiast]

I already made a thread based on this concept. It's called "Fun with Grey Cells!" or something to that effect.

[Jackk]

Oh, OK.
I'll go and repost this stuff there then

[chineseman]

Code: Select all

x = 11, y = 18, rule = lifehistory
3$6.A.F$4.A.A$5.2A3$4.2A$3.A.A$5.A.F!