This has probably already been discovered, but here's a breeder:

Code: Select all

```
x = 96, y = 58, rule = StarWars
6.BC13.2A$6.C13.A2B$19.AB2CA$18.ABC2.BA$17.ABC2.ACB$16.ABC3.B.C$15.AB
C4.C$14.ABC$13.ABC13.2A$12.ABC13.A2B$11.ABC13.AB2CA$10.ABC13.ABC2.BA$
9.ABC13.ABC2.ACB$8.ABC13.ABC3.B.C$8.ABC13.ABC3.C3.AB$9.ABC21.CBC$22.B
9.BC3.2A$21.C.C.ABC2.C6.AB$14.A6.A.A.CBA2C3.2A.2ACA$4.A.C6.BCBA3.BC3A
2.A3.CBCB2A.2AC2.C2.BC.A$4.BA.B4.C3.CB3.A2.CB2.BC.B2.AC.A.B2.A2.AC.AB
2A$5.3A4.ABC.C2A2.2A6.C2.2A4.A2.2ABCAB.AB2A$5.A.C2.B2.A2.CBA2.A7.A.A.
A3.A.A.A.A.A.A.A$4.C2A.A.C5A.B.31A$6.ABA2B.A.A.C2ABC.A.A.A.A.A.A3.A.A
.A.A.A.A.A$5.C.2A2.C.A2.B5.C.C2.A.2A.A.2CB.B.C2.2A$7.C2.BAB.BC7.BABCB
2A.CB2A2.ACBABCA$7.C.C4.B7.A.A.2A.A3.CBA4.3ABA$8.BABC.CBA5.BC10.CBA6.
2A$9.A.ABA8.C8.CB$22.C9.BA$21.C.B8.C$24.C4.BC.C$6.C18.B.C2.C2.C$5.CB
12.C3.CAC.ABA.BA$3.2CBA15.B.B3.A.2A$3.2BA16.CA2.ABCBCBA.ABC.ABC.ABC.A
$C2.2A13.BC6.AB5.ABC.ABC.ABC.AB2A$B2C13.CABC8.C4.ABC.ABC.ABC.AB2A$A2B
15.ABC11.C.ABC.ABC.ABC.A$.2A2$3.CA$3.CA11$81.ABC.ABC.ABC.A$80.ABC.ABC
.ABC.AB2A$80.ABC.ABC.ABC.AB2A$81.ABC.ABC.ABC.A!
```

It's relatively compact and is capable of emerging from soup. I found it without the bottom rake that deletes some stray spaceships, but that is also known to arise naturally.

Also, I noticed that if you take a random pattern and run it for a while, there are a lot of breeders that just show up, so if I'm not the only one who cares, we can expect an inundation of similar patterns.

EDIT #1:

Here's another one that given infinite time will fill 1/2 of the space (the previous one fills 1/4 of the space) at a lower density:
Code: Select all

```
x = 231, y = 159, rule = 345/2/4
59.2A11.2A$54.2A3.2A11.2B83.2A11.2A$54.2B2.A2BA9.A2CA82.2B11.2A3.2A$
53.A2C3.2A10.B2.B81.A2CA9.A2BA2.2B$53.B4.C2.C9.C2.CA80.B2.B10.2A3.2CA
$53.CA3.B2CB13.B79.AC2.C9.C2.C4.B$54.B.3A2BA12.AC79.B13.B2CB3.AC$53.A
C2A2.2A13.B80.CA12.A2B3A.B$52.AB2.2AC2.C12.CA80.B13.2A2.2ACA$51.ABC3A
2.2CB13.B79.AC12.C2.C2A2.BA$51.BC.A.3A2BA12.AC79.B13.B2C2.3ACBA$50.AC
.AC2A2.2A9.2A2.B80.CA12.A2B3A.A.CB$50.B2.BA.2AC2.C8.2B2.CA80.B2.2A9.
2A2.2ACA.CA$49.AC3A.2A.A2CB8.2C3.B79.AC2.2B8.C2.C2A.AB2.B$49.B.B4.2A
2.BA12.AC79.B3.2C8.B2CA.2A.3ACA$49.CAC3.2A.C11.2A2.B80.CA12.AB2.2A4.B
.B$56.2A3.C8.2B2.CA80.B2.2A11.C.2A3.CAC$50.2C2.C2A.A2CB8.2C3.B79.AC2.
2B8.C3.2A$51.B3A.2AC2.2A11.AC79.B3.2C8.B2CA.2AC2.2C$53.BC2A.A.2CB11.B
80.CA11.2A2.C2A.3AB$52.AB2.3A2.BA11.CA80.B11.B2C.A.2ACB$53.CB2A.B2.C
13.B79.AC11.AB2.3A2.BA$53.A2.2A3.C13.C79.B13.C2.B.2ABC$54.B2A.A2.C93.
C13.C3.2A2.A$53.AC.3AB.CBA105.C2.A.2AB$54.B2A.C.C.BA103.ABC.B3A.CA$
53.2A.3AB.C105.AB.C.C.2AB$45.ABC4.B3.A.A110.C.B3A.2A$44.A.A4.C.C2.2A
114.A.A3.B4.CBA$43.3ACA3.C3.2A.C114.2A2.C.C4.A.A$43.3AC2A.CB2.B.2A9.C
BA102.C.2A3.C3.AC3A$39.ABC3.B.B.BA4.2A.ABA6.CBA91.ABC9.2A.B2.BC.2AC3A
$39.ABC4.A.A7.2ACA101.ABC6.ABA.2A4.AB.B.B3.CBA$41.ABC9.CB2A2.BA110.AC
2A7.A.A4.CBA$44.ABC6.A2.3A.C19.2A88.AB2.2ABC9.CBA$44.ABC7.B2A.A21.2BA
66.2A19.C.3A2.A6.CBA$45.ABC6.C.2A.AB12.CBA4.2CB65.A2B21.A.2AB7.CBA$
54.3A.A.C12.CBA6.C65.B2C4.ABC12.BA.2A.C6.CBA$54.B.3A89.C6.ABC12.C.A.
3A$53.A.2A.C113.3A.B$52.BC2.2A114.C.2A.A$51.A.CB2A2.CB112.2A2.CB$52.B
A3.B2A19.CBA88.BC2.2ABC.A$33.A16.C.A2C2.A.A19.CBA67.ABC19.2AB3.AB$34.
B12.AB2CB5.C.2A88.ABC19.A.A2.2CA.C16.A$33.AC3.C6.A.A2.B2.C2.A.2A.A
108.2A.C5.B2CBA12.B$44.3ACA7.3A.B108.A.2A.A2.C2.B2.A.A6.C3.CA$34.C.C
7.5A3.A.C2A2.C.A108.B.3A7.AC3A$33.B12.A2.B.2BA2.2A.2B24.CBA81.A.C2.2A
C.A3.5A7.C.C$49.C.2C.B2A2.CA24.CBA55.ABC24.2B.2A2.A2B.B2.A12.B$35.C
15.B2.A.2A85.ABC24.AC2.2AB.2C.C$52.C2ACA.2A113.2A.A2.B15.C$54.A.2ABA
111.2A.AC2AC$54.ABA.C112.AB2A.A$53.AB.3A113.C.ABA$55.C2.B113.3A.BA$
57.C114.B2.C$51.C9.B111.C$56.C3.C.C106.B9.C$54.CB112.C.C3.C$175.BC$
34.CB2.C17.C3.C$34.BA18.C.BA6.CBA103.C3.C17.C2.BC$34.2C17.B.2A8.CBA
96.ABC6.AB.C18.AB$35.B18.A.3A6.CBA95.ABC8.2A.B17.2C$33.C17.C2.BCA.B
104.ABC6.3A.A18.B$54.A.2A114.B.ACB2.C17.C$52.C2A.A13.CBA9.CBA88.2A.A$
52.B.A.A.C9.CBA.CBA7.CBA61.ABC9.ABC13.A.2AC$54.B2A2.C13.CBA70.ABC7.AB
C.ABC9.C.A.A.B$54.A.3A16.CBA77.ABC13.C2.2AB$56.A.B17.CBA74.ABC16.3A.A
$56.3A19.CBA71.ABC17.B.A$55.2A21.CBA69.ABC19.3A$56.3A.A5.BA8.CBA71.AB
C21.2A$56.A.2AB4.C.CB6.CBA74.ABC8.AB5.A.3A$56.2A.A9.C2.BC.A77.ABC6.BC
.C4.B2A.A$45.2C9.A.ABA6.C.C.A.CBA79.A.CB2.C9.A.2A$45.2B9.A.CA8.BABC.A
B80.ABC.A.C.C6.ABA.A9.2C$45.2A8.2A12.A5.CBA78.BA.CBAB8.AC.A9.2B$56.A
19.CBA74.ABC5.A12.2A8.2A$56.A8.CBA9.CBA72.ABC19.A$42.ABC7.A3.2A7.CBA
10.CBA70.ABC9.ABC8.A$41.ABC.ABC4.3B2A6.BC.A.C.ABC.ABC.A.CBA67.ABC10.A
BC7.2A3.A7.CBA$39.ABC.ABC.ABC.A2C2.3A4.ACB4.CBA.CBA.CBA.CBA63.ABC.A.C
BA.CBA.C.A.CB6.2A3B4.CBA.CBA$39.ABC2.ABC2.ABC2.C2A.2A.C2.BA3.CBA.CBA.
CBA3.CBA60.ABC.ABC.ABC.ABC4.BCA4.3A2.2CA.CBA.CBA.CBA$45.ABC8.A.A.C2.C
A3.CBA.CBA.CBA5.CBA58.ABC3.ABC.ABC.ABC3.AB2.C.2A.2AC2.CBA2.CBA2.CBA$
46.ABC5.B2A.A.B.CB3.CBA.CBA.CBA7.CBA56.ABC5.ABC.ABC.ABC3.AC2.C.A.A8.C
BA$47.ABC3.CA.3ACA5.CBA.CBA.CBA9.CBA54.ABC7.ABC.ABC.ABC3.BC.B.A.2AB5.
CBA$48.ABC.B.AB.A.B26.CBA53.ABC9.ABC.ABC.ABC5.AC3A.AC3.CBA$49.ABCAC2.
C.A83.ABC26.B.A.BA.B.CBA$51.AB119.A.C2.CACBA$178.BA2$45.ABC$44.ABC
136.CBA$3.B19.ABC18.ABC137.CBA$.C182.CBA18.CBA19.B$229.C8$56.2A$55.A
2B115.2A$55.B2CA114.2BA$54.AC2.BA112.A2CB$54.B3.CB111.AB2.CA$53.AC4.C
111.BC3.B$53.B117.C4.CA$52.AC123.B$52.B3.2A119.CA$52.C3.2BA114.2A3.B$
55.A2CB14.CBA96.A2B3.C$55.B2.C16.CBA77.ABC14.B2CA$54.ACA19.CBA74.ABC
16.C2.B$53.AB.BA18.CBA73.ABC19.ACA$53.BC.CB16.CBA75.ABC18.AB.BA$52.2A
C.BC10.CBA.CBA79.ABC16.BC.CB$53.BC4.C6.C.A.CBA83.ABC.ABC10.CB.C2A$56.
CA2.B7.CBA87.ABC.A.C6.C4.CB$55.A2B.C100.ABC7.B2.AC$56.A114.C.2BA$56.A
117.A$55.2A117.A$56.A117.2A$ABC53.A117.A$BC51.AB.2A116.A53.CBA$2.BA.C
46.A.ABA116.2A.BA51.CB$BC2.B38.ABC6.B2A.3A115.ABA.A46.C.AB$.ABC38.ABC
6.A.A.2A.2A112.3A.2AB6.CBA38.B2.CB$40.ABC9.BC2.A.A112.2A.2A.A.A6.CBA
38.CBA$C39.ABC9.AB.2A.A113.A.A2.CB9.CBA$BC16.2A21.ABC.ABC6.C.3AC112.A
.2A.BA9.CBA39.C$ABC15.2B23.ABC.A.C5.B.A.B111.C3A.C6.CBA.CBA21.2A16.CB
$.ABC14.2C25.ABC8.A.A112.B.A.B5.C.A.CBA23.2B15.CBA$3.ABC40.ABC123.A.A
8.CBA25.2C14.CBA$47.ABC132.CBA40.CBA$48.ABC130.CBA$49.AB2C127.CBA$50.
A2B125.2CBA$51.2A125.2BA$178.2A$55.C$55.B2C117.C$55.A2B115.2CB$56.2A
115.2BA$11.2A160.2A$11.2B43.2C160.2A$11.2C43.2B115.2C43.2B$53.5A115.
2B43.2C$53.2B118.5A$52.A2CA120.2B$52.B2.B119.A2CA$52.C2.C119.B2.B$
175.C2.C!
```

For some breeders it is simpler to calculate the filled area than others; in particular, isosceles, right, and equilateral triangles are easy, but scalene triangles are hard, and other polygons are much harder. [/color]