Thread for your unsure discoveries

[nokangaroo]

A compact switchable glider gun

It turns out that the age-old PRNG topic isn't exhausted yet. Here is a compact way to build a toggleable glider gun (the PRNGs are just a handy way to build a demo).

For some even periods a half-period gun can be used (not for all even periods though; the p46 had to be detuned to work).

Here is a period 40 (also tested with 42, 44, 50, 52, 54):

Code: Select all

x = 131, y = 125, rule = LifeHistory
2.2A$3.A2.2A$3.A.A2.A14.A29.A$2.2A.3A.A.2A9.A.A5.B11.B8.3A$3.A.A.A.2A
.A2.2A3.3A2.A3.3AB7.B3A6.A$.A3.3B8.A2.A3.A.A3.B3A7.3AB6.2A$A.3A.A.4A
3.A3.AB3A.2A4.B.BAB.2AB.B5.5B$A3.2AB2A3.A2.2A2.2B4.A7.2B4AB5.5B$.3A.
3A.3A6.A.4A2.A5.2B.A.B.BA3.2B2A3B$3.A5BA5.3A2B2.A.2A5.B4A4BA4B2A5B$4.
5B6.A3.2A2B.A7.A.2BA2B.A.3BA5B$4.A3BA7.3B.A2BA2.A8.B.A6.6B$4.BABAB8.
2A2B2.B3A17.5B$.B2.B3AB2.B5.2AB.BA20.7B$2AB.A3BA.B2A5.A4B2A17.A3B.4B$
2ABA5BAB2A5.4A3.A15.A3B3.4B$.2B.A3BA.2B3.A2.B2A.2A.A14.B3A5.4B$4.B3AB
5.BA4B3.A.2A12.4B7.4B$4.5B5.B4A.B2.A2.A11.4B9.4B$5.3B7.BA2BA3B.A12.4B
11.4B$4.4B6.B2A2B4A.2A10.4B13.4B$4.3B7.4B3.2A3.A8.4B15.4B$5.8BABA2B5.
3A8.4B17.4B$4.3B3A3B.BAB2A4.A9.4B19.4B$4.B2AB2A3B3.2B3A11.4B21.4B$5.
3B2A3B5.BA.A9.4B23.4B$5.7BABA6.A8.4B25.4B$6.5BA2BAB5.2A6.4B27.4B$6.8B
A2B11.4B29.4B$7.6BA4B9.4B25.2A4.4B$9.3B3.4B4.B2.4B25.BA2BA3.4B$9.B.A
4.3BA2.7B12.A14.4B4.4B$5.2A.2BA6.ABAB.6B13.3A12.A2BA5.4B$5.A.5B.BA3.
2A7B17.A10.A2BA7.4B$2.2A.A.A.2AB2A.A3.4B.2B17.2A10.ABAB8.4B$2.2A.A.3A
2B.A.A4.6B17.5B6.2BAB10.4B$6.A2.A3BA2.2A2.4BAB19.3B3.B2.4B11.4B$7.3A
3B.A.A5.ABAB17.10B.2B2AB11.4B$11.B3A2.A5.2A2B16.8BA2B2.2A13.4B$7.5A3.
2A7.4B13.6BA4BAB18.4B$6.A4.4A10.4B11.7BA3BA3B18.4B$7.A.ABA2.A11.3BA9.
9BA6B19.4B$6.2A.2A3.A.A10.ABAB7.15B22.4B$15.2A11.2A2B5.4B2.3B2A5B23.
4B$29.5B.BA3B5.B2A4B25.3BA$30.6BABA4.7B2.A2BA22.B2AB$31.5B2A5.2A7.4B
23.ABAB$31.6B7.A6.A4BA23.4B$33.4B4.3A5.3A.2A.3A22.4B$33.5B3.A6.A3.A2.
A3.A22.4B$35.4B8.A.4AB.2A.2A23.4B$36.4B7.A.B2.AB2.A.A25.4B$37.4B4.A.A
.ABAB3.A.A26.4B$38.4B3.2A.A.BAB4.A28.4B$39.4B5.A.A36.3BA$40.4B4.2A38.
B2AB$41.4B44.ABAB$42.4B44.4B$43.4B44.4B$44.4B44.4B$45.4B44.4B$46.4B
44.4B$47.4B44.4B$48.4B44.4B$49.4B44.4B$50.4B44.4B$51.4B44.4B$52.4B44.
4B$53.4B44.4B$54.4B44.4B$55.4B44.4B$56.4B44.4B19.2A$57.4B44.4B17.3B$
58.4B44.4B16.A3BA$59.4B44.3BA14.A4BA$60.4B44.B2AB12.A.ABAB$61.4B44.AB
AB9.BABA.A$62.4B44.4B7.A4BA$63.4B44.4B3.B.BA3BA$64.4B44.8B3.3B$65.4B
44.7BAB.2A$66.4B44.5BABAB$67.4B43.5B2A2B$68.4B41.8B.B2A$69.4B39.2A5B
3.BA.A$70.4B37.ABAB.2B2A5.A$71.4B35.3BA4.2A5.2A$72.4B33.4B$73.4B31.4B
$74.4B29.4B$75.4B27.4B$76.3BA25.4B$77.ABAB23.4B$78.2A2B21.4B$79.4B19.
2A2B$80.4B17.ABAB$81.4B15.3BA$82.4B13.4B$77.2A4.4B5.2A4.4B$76.A.A5.4B
3.B2AB2.4B$69.A4.A2B.A.2A3.4B2.3B2.4B$68.A.A3.AB2A.A.A4.3BA2.7B$68.A.
A2.2B2.A.A7.ABA8B$67.2A.2A.5A.A8.2A7B$67.A3.B2.B3.A6.A3.3B2A4B$68.3A.
2A.3A5.3A5.ABA5B$70.6A6.A7.3BA2.4B$71.4B7.2A5.4B4.4B$71.4B2.7B4.4B6.
4B$75.4B3A5.4B8.3B$74.4BA3BAB2.4B10.4B$74.3BA5BA5B13.2A$72.5BA5BA4B
14.A$72.5BA5BA3B16.3A$73.5BA3BA3B19.A$69.2A2.6B3A2B$68.BA2BA.10B$69.
4B2.B3.3B$69.A2BA6.5B$68.A2BA10.2A$68.ABAB10.A$67.2BAB12.3A$67.4B14.A
$67.2B2AB$69.2A!

Here is the p46 (note the detuned input gun):

Code: Select all

x = 123, y = 113, rule = LifeHistory
4.2A5.2A$2A.B2AB3.B2AB.2A5.2A5.2A5.4B3.B.3BA5B.B3.4B$2A.3B5.3B.2A3.2B
2AB3.B2A2B3.4B.7B2A8B.4B$.7B.7B4.4B5.4B2.2A9BAB3A11B2A$3.5B.5B6.6B.6B
2.2A13B2A10B2A$3.5B.5B6.6B.6B3.B.11B2A10B.B$2.6B.6B7.4B.4B7.11BA11B$
3.5B.5B7.5B.5B$2.6B.6B6.5B.5B6.11BA11B$2.6B.6B5.6B.6B3.B.11B2A10B.B$
2.6B.6B6.5B.5B3.2A13B2A10B2A$2.6B.6B5.6B.6B2.2A9BAB3A11B2A$2.2B2A2B.
2B2A2B5.6B.6B3.4B.7B2A8B.4B$2.BA2BAB.BA2BAB5.6B.6B3.4B3.B.3BA7B3.4B$
2.2BA2BA.A2BA2B5.6B.6B17.6B$2.5BA.A5B5.6B.6B16.8B$2.3B3A.3A3B5.2BA3B.
3BA2B15.4B2.4B$3.3A2B.2B3A6.2AB2AB.B2AB2A14.4B4.4B$2.B2A3B.3B2AB5.6B.
6B13.4B6.4B$3.2A3B.3B2A6.3BABA.ABA3B12.4B8.4B$3.BAB2A.2ABAB7.A3BA.A3B
A12.4B10.4B$.2BA2BA3B3AB6.BA2B2AB2A2BAB10.4B12.4B$2A.A2B2.3BA3B5.2B3A
3B3AB10.4B14.4B$2A.A2BA2.7B4.3BA5BA2B9.4B16.4B$4.2A4.2B.4B4.5B.4B9.4B
18.4B$10.A2B.4B2.13B6.4B20.4B$9.BAB3.4B2.5B.6B5.4B22.4B$8.2BA2B3.11B
2.4B4.4B24.4B$6.9B2.10B.B2A2B3.A3B26.4B$6.6B3A3.3BA5B2.2A4.BABA28.4B$
5.9B5.3BA2B9.2B2A30.4B$4.2AB.2BA2B7.3A2B8.4B32.2B2A$3.A.AB2.BAB8.5B4.
B2.4B34.BABA$3.A6.A8.7B2.7B36.A3B$2.2A15.8B.6B38.4B$13.2A2.16B40.4B$
11.2B2AB.7B.BABA.2B42.4B$11.4B2.7B2.B2A3B43.4B$11.6B.5B3.BA4B44.4B$
11.13B4.4B45.4B$13.4B.5B6.4B45.4B$12.12B6.3BA45.4B$12.B3A3B3A2B7.ABAB
45.4B$11.BA2BA3BA2BAB8.2A2B45.B3A$12.A3BA.A3BA10.4B28.2A15.A3B$11.2AB
ABA.ABAB2A10.4B26.A.A16.A3B$11.2AB2AB.B2AB2A11.4B25.BA18.4B$11.B3A2B.
2B3AB12.2BAB11.A13.2B2.4B2A3B.B5.4B$11.6B.6B13.2B2A10.3A9.9BA9B4.4B$
11.6B.6B14.2A2B12.A7.2A7BA2B2A7B4.4B$11.6B.6B15.4B10.2AB6.2A7BA2BA9B
4.4B$11.6B.6B16.4B9.5B5.B.6BABA10BA4.4B$11.6B.6B17.4B10.3B8.6B2A10B3A
3.4B$11.6B.6B18.4B8.5B4.2B22.A3.4B$12.5B.5B20.4B6.2B3A2B2.10B2A10B3A
5.2B2A$12.5B.5B21.4B4.3B3A13BABA10BA8.BABA$8.2A.6B.6B.2A18.4B4.3BA14B
A2BA9B10.A3B$8.A.A5B3.5BA.A19.4B4.5B.B.9BA2B2A7B12.4B$9.AB.3B5.3B.BA
21.4B4.3B3.11BA9B14.4B13.B$12.B2AB3.B2AB25.BABA4.2B2.4B3.B.4B2A3B.B
17.4B11.3B$13.2A5.2A27.B2AB6.4B35.4B10.3B$50.A3B4.BA2B37.4B7.7B2.2A$
51.4B2.2A2B39.4B6.7B.B2A2B$52.6B2A41.4B5.7B2.4B$53.6B43.4B5.5B.6B$54.
4B45.4B3.13B$55.4B45.4B3.5B.4B$56.4B45.4B.12B$57.4B45.16B$58.4B45.16B
$59.4B45.5BA2B.2BA2B$60.4B43.5B3AB.B3A2B$61.4B41.5B2ABAB.BAB2AB$62.4B
39.4B.6B.6B$63.4B37.4B2.6B.6B$64.4B35.4B3.4BAB.BA4B$65.4B33.4B4.4BAB.
BA4B$66.4B31.4B5.6B.6B$67.4B29.A3B6.6B.6B$68.4B27.B2AB7.6B.6B$69.4B
25.BABA9.5B.5B$70.4B23.4B9.6B.6B$71.BABA21.4B11.5B.5B$72.B2AB19.4B12.
5B.5B$73.A3B17.4B14.4B.4B$74.4B15.4B13.6B.6B$75.4B13.4B14.6B.6B$76.4B
5.2A4.4B15.4B5.4B$77.4B3.B2AB2.4B16.2B2AB3.B2A2B$78.4B2.3B2.4B19.2A5.
2A$79.4B2.3B2A2B$80.9B2A$81.7BAB$82.9B$84.8B$83.4B2.4B$59.2A21.4B4.4B
$59.2AB19.4B6.4B$61.B2.B.9B.A3.4B2.2B4.3B$59.12BA3BA7B3.3A4.4B$58.2A
10BA8B2AB.B.5B5.2A$58.2A10BA2B2A5BA3BA5BA4.A$59.B.10B2A5BABA3BA5BAB4.
3A$61.11B3A3B2A2B2.A5BA7.A$79.2B4.5B$61.11B3A3B2A6.3B$59.B.10B2A5B2A.
B4.5B$58.2A10BA2B2A4BAB2A5.B2A$58.2A10BA7B3ABA6.A$59.12BA3BA3B3A8.3A$
61.B2.B.9B.A2.A12.A$59.2AB17.B2A$59.2A19.2A!

Since the switch glider does not have to be perfectly aligned, this will also work for odd periods (here p51 in 2 versions for comparison):

Code: Select all

x = 290, y = 152, rule = LifeHistory
16.A$16.3A$12.A6.A$12.3A3.2A$6.A8.A2.4B$6.3A5.2A4.2B3.BA$9.A4.9B.BA.A
$8.2A6.3BA6BA156.A$8.4B2.6BA3B.B157.3A$10.3B2A2BA2B2A3B154.A6.A$10.2B
3ABABAB3A2B154.3A3.2A$11.2B2A2BA2B2A3B148.A8.A2.4B$12.2BA5BA4B148.3A
5.2A4.2B3.BA$12.3B5AB.B.B2A149.A4.9B.BA.A$12.4B3A3B2.BA.A147.2A6.10BA
$11.6BA2B7.A147.4B2.4B2A4B.B$11.8B8.2A148.8B2A5B$12.8B157.5BA9B$10.9B
159.4BA9B$10.9B160.3B2A8B$9.8B162.9B.B.B2A$2A8.8B161.A2BABA4B2.BA.A$.
A7.2BA6B160.3B3A3B7.A$.A.AB2.3B3A4B161.A3B2A2B8.2A4.A$2.2AB.B.B5A3B
162.A7B13.3A$4.4BA5BA2B75.2A83.9B6.A10.A$4.3B2A2BA2B2A2B73.A.A83.9B3.
A2.3A7.2A$4.2B3ABABAB3A2B66.2A4.A84.7BA5.3A3.A6.6B$4.3B2A2BA2B2A4B63.
A2.A2.2A.4A71.2A8.2B2A3BA7.3A9.B2A4B$3.B.3BA6B2.4B62.2A.A.A.A.A2.A72.
A7.3B3A3B4.2A.A4.BA3.3B2A6B$2.A6BA3B5.4B64.A.ABABAB74.A.AB2.4BABA2BA
3.A2.A.B4.2AB.13B$.A.AB.9B4.4B63.A.AB2AB76.2AB.B.9B3.2A2.ABA.A3B2.12B
$2.AB3.2B4.2A5.4B63.AB.2B79.8B2A3B8.B2AB.A2.13B$7.4B2.A7.4B65.3B78.9B
A4B9.A.2A2.12B$9.2A3.3A5.4B64.4B6.2A69.9BA5B8.A.A4.10B$9.A6.A6.4B61.
3BA2B6.A70.5B2A9B6.2A2.A5.7B$10.3A11.3BA60.2B3AB3.BA.A69.B.4B2A4B2.4B
8.2A5.8B$12.A12.3BA57.3B5A2B.B2A69.A10B5.4B13.10B$26.3AB55.3B2A3B2A3B
70.A.AB.9B4.3BA12.6B.4B$27.4B53.3B3A3B3A2B71.AB3.2B4.2A5.ABAB10.6B3.
4B$28.4B51.5B2A3B2A3B76.4B2.A7.2A2B5.B2.3BA3B4.4B$29.4B49.4B2.B5A2B
80.2A3.3A5.4B2.7BABA2B5.4B$24.2A4.4B47.4B5.3A3B80.A6.A6.4B.7BABA2B6.
4B$25.A5.4B45.4B4.B3A5B80.3A11.12BA3B7.4B$20.2A.A8.4B43.4B5.2A4.4B81.
A12.13B.B2A6.4B$21.A.2A8.4B41.4B7.A5.4B94.11B2.BA.A6.4B$21.A3.B8.4B
39.4B5.3A7.4B94.8B7.A7.2B2A$19.2A.3ABA8.4B37.4B6.A10.4B94.7B7.2A7.2A
2B$20.A.A2.2B2.A6.4B35.A3B19.B3A94.5B18.BA2B$20.A.A3.4A7.2BAB33.BABA
21.A3B94.5B18.4B$21.A3.BA8.5B2A31.2B2A23.A3B94.5B18.4B$25.A.2A.A4.4B
2A2B29.4B25.4B94.BABAB18.4B$23.A3BA.2A3.10B27.4B27.4B94.B2A2B18.4B$
23.A2B9.10B25.4B29.4B94.A4B18.4B$24.A10.11B23.4B31.4B94.5B18.4B$17.2A
7.2B6.A12B21.4B33.4B94.4BA18.4B$18.A5.5B4.B3A5B.2BA2B19.4B35.4B94.4BA
18.4B$18.A.AB.6B2.4B2A3B4.2B2AB17.4B37.4B94.B3AB18.4B$19.2AB.2BA4BA4B
ABA2B5.2A3B15.4B39.4B94.5B18.4B$21.3BABA2B2A5B2AB7.5B13.4B41.4B94.5B
18.B3A$21.B2A3B3A6B2A9.5B11.4B43.3BA94.5B18.A3B$21.B2A3BAB2A9B8.5B9.A
BAB45.B2AB94.5B18.A3B$21.6BA5B5.2A9.4BA7.B2AB47.ABAB94.5B18.4B$22.A4B
A4B6.A11.BABAB5.3BA49.4B94.3BAB18.4B$22.A4BA5B6.3A9.B2A2B3.4B51.4B94.
3BAB18.4B$22.2B2ABAB.3BA7.A10.6B.3B33.A19.4B94.3A2B18.4B$23.B3AB3.B2A
B18.8B32.3A20.4B94.5B18.4B$23.4B5.ABAB10.2A6.7B31.A6.A17.4B94.5B18.4B
$24.B8.4B9.A8.5B32.2A3.3A18.4B94.5B18.4B$34.4B10.A7.3BAB29.4B2.A8.A
13.4B94.5B18.4B$28.2A5.4B5.5A8.ABA2B23.AB3.2B4.2A5.3A14.4B82.A11.5B
18.4B$29.A5.4B4.A14.2A3B21.A.AB.9B4.A18.4B71.A7.3A12.5B18.3BA$16.A12.
A.AB.7B2.B3A12.5B21.A10B6.2A18.4B69.A.A5.A16.5B18.B2AB$6.A7.3A13.2AB.
7B3.2B.A12.5B21.B.4B2A4B2.4B19.4B68.BA2B4.2A16.5B18.ABAB$5.A.A5.A18.
12B4A13.5B21.5B2A8B22.4B68.2B.BA4B17.2B2AB18.4B$5.BA2B4.2A17.7B2A3BAB
2.2A12.2BABA20.8B2A5B23.4B68.3BA2B19.2B2A2B18.4B$6.2B.6B17.7B2A2B.B3A
2.A12.2B2AB19.8B2A4B25.4B66.5BA2B17.8B18.4B$7.6B19.2A8B3.B.A.2A13.BA
3B18.7B2A4B27.4B63.5B2A2B.B15.4B.4B19.4B$6.8B17.ABA5B8.A17.5B15.2AB.B
.3B2A4B28.4B62.5B2A4B14.4B3.4B19.4B$4.9B.B15.3BA5B7.2A18.5B13.A.AB2.
4B2AB2AB29.4B59.2AB.10B.B10.4B5.4B19.4B$4.11B14.4B2.3B29.5B12.A7.3BA
2BA2B29.4B57.A.AB.8B2A4B7.4B7.4B19.4B$2.2AB.2B2A6B.B10.4B3.5B28.5B10.
2A8.3B2A3B30.4B56.A4.7BA2BA3B.2B3.2A2B9.4B19.4B$.A.AB.2B2A10B7.4B7.2A
29.BABAB18.8B32.4B54.2A4.5B2A2BA9BABAB5.2A4.4B19.4B$.A4.14B.2B3.4B8.A
31.B2A2B18.9B31.4B57.2AB.7BA11BAB5.A6.4B19.4B$2A4.5B2AB2A13B5.2A3.3A
29.A4B17.9B32.4B55.A.AB.6BA8BA6B.BA.A7.4B19.4B$4.2AB.3BA2BABA5BA6B5.A
6.A30.5B18.8B32.4B54.A5.BA11BA7B.B2A9.4B19.4B$3.A.AB.3BA2B2A6B2A2BA3B
.BA.A38.5B16.3B2A3B8.2A24.4B52.2A5.BABA9BA2B2A5B4.2A6.4B19.4B$3.A5.6B
A5BABA2BA3B.B2A40.5B15.2BA2BA3B7.A26.4B57.2B2A3.2B.3BA2BA7B4.A8.4B19.
4B$2.2A5.13B2AB2A5B4.2A37.5B15.B2AB2A4B2.BA.A27.4B10.2A44.3B7.4B2A8B.
BA.A9.4B19.4B$8.4B3.2B.14B4.A39.5B14.4B2A3B.B.B2A29.4B9.A43.2AB11.B.
10B.B2A11.4B19.4B$8.3B7.10B2A2B.BA.A40.5B13.4B2A7B32.4B10.A40.A.AB14.
4B2A5B14.4B19.4B$6.4B10.B.6B2A2B.B2A42.5B11.4B2A8B26.2A5.4B5.5A40.A
17.B.2B2A5B15.4B19.4B$6.2A15.11B45.5B9.5B2A8B27.A5.4B4.A44.2A18.2BA5B
18.4B19.4B9.2A$7.A15.B.9B46.5B7.9B2A5B27.A.AB.7B2.B3A62.2BA3B20.4B19.
4B9.A$4.3A17.8B49.3BAB5.4B2.4B2A4B.B27.2AB.7B3.2B.A59.4BAB.2B20.4B19.
4B8.A.AB$4.A20.6B51.3BAB3.4B5.10BA28.12B4A59.2A4.2BAB20.4B19.4B8.2AB.
B$23.6B.2B51.3A2B.4B4.9B.BA.A27.7B2A3BAB2.2A58.A5.A.A21.4B19.4B9.B2AB
$23.2A4.2BAB51.4BA3B5.2A4.2B3.BA28.7B2A2B.B3A2.A54.3A7.A23.4B19.2B2A
8.BA.2AB$24.A5.A.A52.3BABA7.A2.4B33.3A7B3.B.A.2A54.A34.4B19.2A2B9.BA.
2A$21.3A7.A54.2B2AB4.3A3.2A34.3BA4B8.A93.4B19.BA2B7.A2B.2B$21.A65.5B
3.A6.A33.3BA5B7.2A94.4B19.4B7.2B.BA$88.4B7.3A33.4B2.3B105.4B19.4B6.3A
BAB$89.4B6.A34.4B3.5B104.4B19.4B4.B.B.2B2A$90.4B39.4B7.2A105.4B19.4B
3.3B2.AB$91.4B37.4B8.A107.4B19.4B2.3B$92.4B35.4B10.3A105.4B19.6BAB$
93.4B33.4B13.A106.4B19.4BABAB$94.2BAB31.4B122.4B19.3BA2BA$95.2B2A29.
4B124.4B17.5B2A2B$96.2A2B27.4B126.4B15.10B$97.4B25.A3B128.4B13.4B.6B$
98.4B23.B2AB130.4B11.4B3.3B.B2A$99.4B21.BABA132.4B9.4B5.B2.BA.A$100.
4B19.4B134.4B7.4B12.A$101.4B17.4B130.2A4.3BAB4.4B13.2A$102.4B15.4B
131.A.A4.3BAB2.4B$103.4B13.4B134.A5.3A6B$104.4B5.2A4.4B124.A10.3A11B$
105.4B3.B2AB2.4B115.A7.3A12.BA9B$106.4B2.3B2.4B115.A.A5.A13.3A11B$
107.3BA2.7B116.BA2B4.2A12.A2.4B2A6B$108.ABA8B118.2B.6B10.A.A2.3BABA7B
$109.2A7B120.6B12.2A3.5BA8B$92.A17.3B2A4B118.8B17.8B2.4B$82.A7.3A19.A
BA5B115.9B.B15.7B5.4B$81.A.A5.A21.3BA2.4B114.11B14.4B.5B4.4B$81.BA2B
4.2A19.4B4.4B111.2AB.10B.B10.4B5.2A5.BABA$82.2B.6B18.4B6.4B109.A.AB.
3B2A9B7.4B6.A7.B2AB$83.6B19.4B8.3B109.A4.2BA2BA3B2A3B.2B3.4B8.3A5.A3B
$82.4BA3B17.4B10.4B106.2A4.3BABA2B2AB2A3BA6B5.2A4.A6.3B$80.5B3AB.B15.
4B13.2A110.2AB.2BA3B2A2BAB2ABA5B5.A14.B2A$80.4B5A2B14.4B14.A110.A.AB.
6BA8BA6B.BA.A14.BA.A$78.2AB.BA5BA2B.B10.4B16.3A107.A5.5BAB2ABA2B2A3BA
2B.B2A18.A$77.A.AB.4BA2B2A5B7.4B19.A106.2A5.6BA3B2AB2A2BABA3B4.2A14.
2A$77.A4.3BABAB3A4B.2B3.4B133.4B3.2B.3B2A3BA2BA2B4.A$76.2A4.4BA2B2A
12BAB5.2A127.3B7.9B2A3B.BA.A$80.2AB.5BA12B3A5.A126.2AB11.B.10B.B2A$
79.A.AB.B4A12B4AB.BA.A125.A.AB14.11B$79.A5.3A12BA5B.B2A126.A17.B.9B$
78.2A5.BA12B2A2BA4B4.2A121.2A18.8B$84.4B3.2B.4B3ABABA3B4.A143.6B$84.
3B7.5B2A2BA4B.BA.A141.6B.2B$82.2AB11.B.2BA5BAB.B2A142.2A4.2BAB$81.A.A
B14.2B5A4B145.A5.A.A$81.A17.B.B3A5B142.3A7.A$80.2A18.3BA4B144.A$101.
6B$99.6B.2B$99.2A4.2BAB$100.A5.A.A$97.3A7.A$97.A!

The switch glider is offset by a half-diagonal to simplify the gun. The switch on the right behaves differently (cap the feedback loop to check), but the patterns have the same period (can be verified with oscar and compared against Dean Hickerson's table in oscillator-stamp-collection-31January2023.rle).

[Pyry Virtanen]

Here is a 5x6 diehard that lasts 269 ticks. It beats my previous record of 6x6 (or smaller) diehards by 15 ticks.

Code: Select all

x = 6, y = 5, rule = B3/S23
b2o$2o$4o$b2obo$3b3o!

I also found a 10-cell polyplet predecessor for it, lasting 270 ticks:

Code: Select all

x = 5, y = 7, rule = B3/S23
2bo$bo$bo$b3o$o3bo$4bo$4bo!

Imo that's a pretty impressive lifespan for a decaplet diehard. I think it would be worth it to exhaustively search all polyplets up to some size to see how they evolve. This has been done to size six and below, according to LifeWiki. But you could go further. There are 758381 decaplets. It would be doable to find the longest-lasting vanishing polyplet of size ten or less. It might even be this one, who knows. If something like this has already been done, I would love to know.

Edit: I was able to find a better 5x6 form. This one has only 11 cells instead of 14 and lasts 270 ticks:

Code: Select all

x = 6, y = 5, rule = B3/S23
b2o$bo$o2bo$bo2b2o$2bob2o!

I was not able to find a 5x5 form, though I didn't use a search program.

[nokangaroo]

High-clearance p7 inserter

Code: Select all

x = 94, y = 53, rule = LifeHistory
74.A.A$71.A2.2A.A$71.3A3.A$75.2A.2A.A$73.2A.A.A.2A$19.B53.A2.2B$17.2A
3B52.2ABA$17.2A3B3.B45.3A2.BAB$17.BA3BA.3A44.A2.2A3B$16.BA3B6A45.A.A.
4B$16.A2.4BA.B45.2A.A.2AB2A.2A$17.5A49.A2.A3BA.A.2A$72.2A2.B.A.A$17.
5A52.5A.4A$16.A2.4BA.B48.A3.BA4.A$16.BA3B6A48.3A.A.3A$2.2A3.3B7.BA3BA
.3A35.2A3.3B7.2AB2A$2B2AB2.B2AB6.2A3B3.B34.2B2AB2.B2AB7.3B$4B2.BA.2AB
2AB2.2A3B38.4B2.BA.2AB2AB3.3B$5B3ABAB4A4.B40.5B3ABAB4A4.B$16B4.4B36.
16B4.4B$.4ABAB3A5B4.B2A4B34.4ABAB3A5B4.B2A4B$.B2AB2A.AB2.4B2.3B2A6B
32.B2AB2A.AB2.4B2.3B2A6B$5.B2AB2.B2A2B.13B35.B2AB2.B2A2B.13B$6.3B3.2A
3.12B37.3B3.2A3.12B$B15.13B31.B15.13B$2B14.12B32.2B14.12B$3B14.10B33.
3B14.10B$4B15.7B34.4B15.7B$.4B14.8B34.4B14.8B$2.4B12.10B34.4B12.10B$
3.4B11.6B.4B34.4B11.6B.4B$4.4B9.6B3.4B34.4B9.6B3.4B$5.4B4.B2.3BA3B4.
4B34.4B4.B2.3BA3B4.4B$6.4B.7BABA2B5.4B34.4B.7BABA2B5.4B$7.11BABA2B6.
4B34.11BABA2B6.4B$8.11BA3B7.2B2C34.11BA3B7.2B2C$9.12B.B2A6.2CB35.12B.
B2A6.2CB$10.10B2.BA.A6.BC36.10B2.BA.A6.BC$11.7B7.A45.7B7.A$12.6B7.2A
45.6B7.2A$13.4B56.4B$14.4B56.4B$15.4B56.4B$16.4B56.4B$17.4B56.4B$18.
4B56.4B$19.4B56.4B$20.4B56.4B$21.4B56.4B$22.4B56.4B$23.4B56.4B$24.4B
56.4B!

[Anivec]

High-clearance p7 inserter

Code: Select all

x = 94, y = 53, rule = LifeHistory
74.A.A$71.A2.2A.A$71.3A3.A$75.2A.2A.A$73.2A.A.A.2A$19.B53.A2.2B$17.2A
3B52.2ABA$17.2A3B3.B45.3A2.BAB$17.BA3BA.3A44.A2.2A3B$16.BA3B6A45.A.A.
4B$16.A2.4BA.B45.2A.A.2AB2A.2A$17.5A49.A2.A3BA.A.2A$72.2A2.B.A.A$17.
5A52.5A.4A$16.A2.4BA.B48.A3.BA4.A$16.BA3B6A48.3A.A.3A$2.2A3.3B7.BA3BA
.3A35.2A3.3B7.2AB2A$2B2AB2.B2AB6.2A3B3.B34.2B2AB2.B2AB7.3B$4B2.BA.2AB
2AB2.2A3B38.4B2.BA.2AB2AB3.3B$5B3ABAB4A4.B40.5B3ABAB4A4.B$16B4.4B36.
16B4.4B$.4ABAB3A5B4.B2A4B34.4ABAB3A5B4.B2A4B$.B2AB2A.AB2.4B2.3B2A6B
32.B2AB2A.AB2.4B2.3B2A6B$5.B2AB2.B2A2B.13B35.B2AB2.B2A2B.13B$6.3B3.2A
3.12B37.3B3.2A3.12B$B15.13B31.B15.13B$2B14.12B32.2B14.12B$3B14.10B33.
3B14.10B$4B15.7B34.4B15.7B$.4B14.8B34.4B14.8B$2.4B12.10B34.4B12.10B$
3.4B11.6B.4B34.4B11.6B.4B$4.4B9.6B3.4B34.4B9.6B3.4B$5.4B4.B2.3BA3B4.
4B34.4B4.B2.3BA3B4.4B$6.4B.7BABA2B5.4B34.4B.7BABA2B5.4B$7.11BABA2B6.
4B34.11BABA2B6.4B$8.11BA3B7.2B2C34.11BA3B7.2B2C$9.12B.B2A6.2CB35.12B.
B2A6.2CB$10.10B2.BA.A6.BC36.10B2.BA.A6.BC$11.7B7.A45.7B7.A$12.6B7.2A
45.6B7.2A$13.4B56.4B$14.4B56.4B$15.4B56.4B$16.4B56.4B$17.4B56.4B$18.
4B56.4B$19.4B56.4B$20.4B56.4B$21.4B56.4B$22.4B56.4B$23.4B56.4B$24.4B
56.4B!

This is extremely well known, in fact, one of the sparker could be replaced by an eater if the other sparker didn’t get in the way

[Jormungant]

Alternate pull-push-fire

Code: Select all

x = 324, y = 81, rule = LifeHistory
13$102.B$102.2B$63.B.2B35.3B$62.6B5.B28.4B$61.7B.7B27.4B$61.15B28.4B$
60.18B27.4B$59.19B28.4B$59.19B29.4B$61.18B29.4B$63.18B28.4B$66.15B29.
4B$29.4B35.2B.10B30.4B58.4B52.2B.2BD2.4B52.2B.2BD2.4B$27.B.2C2B37.7B
2C4B29.4B8.4B45.2C2B51.5BDBD.2C2B51.5BDBD.2C2B$26.2BCBC3B35.7BCBC5B
29.4B7.2C2B43.BCBC3B2D47.7BDBCBC3B49.7BDBCBC3B$22.2B.5BC2B2C.B31.10BC
2B2C2B29.4B4.BCBC3B34.B5.2D3BC2B2CD46.12BC2B2C.B45.12BC2B2C.B$21.12B
2C2B30.13B.2C2B30.10BC2B2C.B30.3B4.DBD5B2CB45.4B.11B2C2B44.4B.11B2C2B
$20.17B29.14B2.3B31.12B2C2B29.4B4.BD9B44.4B2.15B43.4B2.15B$19.19B27.
21B31.15B28.4B6.11B42.4B3.16B41.4B3.16B$18.4B2.13B27.7B2.12B33.15B26.
4B7.10B42.4B6.13B41.4B6.13B$17.4B3.3B.3B3C3B26.7B5.4B3C3B34.13B26.4B
8.B.3B3C3B40.4B9.B.3B3C3B40.4B9.B.3B3C3B$16.4B11.2BC.B26.3BC3B5.7BC2B
34.3B2.3B3C3B25.4B14.2BC.B40.2C2B15.2BC.B40.2C2B15.2BC.B$15.4B13.C28.
4B2CB4.8BC3B33.4B5.B.C.B25.4B16.C42.CBCB17.C42.CBCB17.C$14.3CB42.4BC.
C4.14B31.4B7.C27.3CB61.BC62.BC$14.2BC42.4B8.6B2.5B31.4B36.2BC$15.C42.
4B10.5B3.2B32.4B38.C$58.3B13.2B37.4B$58.2B52.4B$58.B52.C3B$110.B2CB$
110.CBC2$272.3C$150.2C122.C$149.C.C121.C$151.C2$214.2C$207.2C4.C.C$
206.C.C6.C55.3C$208.C64.C$272.C12$33.2C$32.C.C$34.C!

That "pull" which somewhat works and shoots back a glider back to the sender (suppressed here, so 4 gliders are needed instead...)

Also, this uses the same 2 gliders and block, with dubious uses

Code: Select all

x = 14, y = 19, rule = LifeHistory
14B$14B$6B2C6B$5BCBC6B$7BC2B2C2B$10B2C2B$14B$14B$2.12B$2.6B3C3B$3.7BC
3B$4.5BC4B$5.9B$6.8B$8.2C4B$7.CBC4B$8.BC4B$10.4B$10.4B!

It's not that bad, it could be worse:

Code: Select all

x = 109, y = 108, rule = LifeHistory
4$93.3B$24.4B60.7B2D$24.2C2B60.2C5B2D$23.CBC5B55.BCBC6B$23.2BC2B2CB
54.4BC2B2C2B$22.4B2.2C2B52.8B2C2B$22.4B2.3B53.12B$22.3B2D4B53.11B$21.
4B2D5B50.14B$22.4B3C4B48.5B2.2B3C4B$22.6BC4B47.4B4.4BC4B$21.5B.C5B46.
4B6.2BC5B$20.4B4.5B45.4B8.7B$19.4B4.6B44.4B10.6B$18.4B4.2C5B43.4B10.
2C5B$17.2C2B4.CBC5B42.4B10.CBC5B$17.B2C6.BC5B41.2C2B12.BC5B$17.CB9.5B
40.CBCB15.5B$28.5B41.BC16.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B
59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.
5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$4.C23.5B59.5B$4.2C22.5B59.5B$3.C.
C22.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$
28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.
5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B
59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.
5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$
28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.
5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B
59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.
5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$28.5B59.5B$
28.5B59.5B$28.2BDBD59.2BDBD$28.BD3B59.BD3B$28.BD3B59.BD3B$29.D2BD60.D
2BD$29.3D61.3D!

[qqd]

Possible component reaction (Compare generation 8 and the target still life):

Code: Select all

x = 29, y = 18, rule = B3/S23
2b2o12b2o$3bo13bo7bo$bo13bo8bo$b2o12b2o7b3o$4bob2o$b4ob2o7b2o3bo$o13bo
2bo2b2o$b9o5b2o4b2o$4bo5bo11bo$b2o4b3o5b2o$bo5bo7bo$3bo13bo$2b2o12b2o$
24b2o$24bobo$24bo$27bo$27b2o!

[KtT]

Pufferfish spaceship can turn LWSS or MWSS into glider:

Code: Select all

 
x = 110, y = 32, rule = B3/S23
30bo7bo18bo7bo$29b3o5b3o16b3o5b3o$28bo2b2o3b2o2bo14b2obo5bob2o$28bo3b
o3bo3bo15b2obo3bob2o$29b2ob2ob2ob2o14bob2o7b2obo$29b2obo3bob2o13bobo2b
obobobo2bobo37b2o$31bo5bo15bobo3b2ob2o3bobo36b4o$32b2ob2o17b3obo5bob3o
36b2ob2o$27b2o2bo5bo2b2o13b3o7b3o38b2o$27b2o2bo5bo2b2o13b2o9b2o$55bo11b
o$31bobobobo16b2o11b2o$31b2o3b2o16b2o11b2o2$58b2o3b2o$42bo10bo4b2o3b2o
$26bo14b3o8b3o14bo$2bo22b3o3b2o3bobob2obo7b2obo13b3o$o3bo19b2o2bo2b2o
9bo8b3o13b2obo$5bo18b4obo6bo3bobo8b3o13b2o$o4bo17b2o5bo7b2o2b2o7b4o14b
2o$b5o18bo16bo2bo6bo2bo11bo2b2o$24bob3o2bo4bobo2b2o7b2o14bo4bo$24bobo
3b2o4bobo2b2o3bo4bobo11bo2bobo$24b2o6bo2bo7bo2bo4b3o10b2o3b2o$23bo5bo
bo4bobo4bob2o16bo$24b2o2bo2bo4bo6bob2o12bo4b2o$24b2o3b2o7b2o3b2ob2o2b
2o6b6o$47bo4bo4bobobobo7b3o$53bo3bo2bo9bo$53bo4bo10bo$52bo17bobo!

[bibunsekibun]

Has anyone noticed this Methuselah?
Also, does this pattern have a smaller parent?

Code: Select all

x = 8, y = 12, rule = B3/S23
b2obo$2bo4bo2$4b3o$2bo$bobo$3bo$o2bo$o$bo$2bo$3b3o!

EDIT by dvgrn: stabilizes at T=29,048.

[hotdogPi]

While not a parent, its 14-tick descendant can have 17 cells instead of 20 simply by deleting sparks that would die out anyway.

Code: Select all

x = 6, y = 13, rule = B3/S23
5bo$5bo$5bo$2o$ob2o$3bo3$2bo2$2obo$3b2o$2b2o!

[Pyry Virtanen]

I found this 416-tick diehard consisting of a loaf and a two-glider octomino:

Code: Select all

x = 9, y = 12, rule = B3/S23
b2o$o2bo$bobo$2bo5$6bo$5b3o$7b2o$7b2o!

By choosing the right predecessors you can have this 11-cell form that lasts 419 ticks:

Code: Select all

x = 8, y = 13, rule = B3/S23
3o$2bo$2bo5$6bo$6bo$6bo$6bo$6bo$7bo!

[bibunsekibun]

Is this the longest life record for Methuselah with less than 12 initial populations?
LifeWiki lists 25371M as having the longest lifespan for Methuselah with less than 12 cells.

Code: Select all

x = 21, y = 18, rule = B3/S23
o$bo$bo$2o10$14bo$14bo$14bo$18b2o$19b2o!

Its lifespan is 27203.

[hotdogPi]

Is this the longest life record for Methuselah with less than 12 initial populations?
LifeWiki lists 25371M as having the longest lifespan for Methuselah with less than 12 cells.

Code: Select all

x = 21, y = 18, rule = B3/S23
o$bo$bo$2o10$14bo$14bo$14bo$18b2o$19b2o!

Its lifespan is 27203.

We don't know. There was a large search a few months ago that was R + blonk + blonk systematically done (not sure if pi + blonk + blonk, also 11, was done or not, or if R + blonk + blonk was even completed), but the goal of that one was to find infinite growth patterns, so I believe everything that didn't go infinite was discarded. The search might have found a lack of oscillators of specific periods (e.g. if it checked for stabilization via 120, a p7 would have stood out), but that wouldn't be relevant to methuselahs anyway.

[Pyry Virtanen]

Here is a 6x7 diehard that lasts 571 ticks:

Code: Select all

x = 7, y = 6, rule = B3/S23
obo2b2o$3o$ob2o2bo$2b3obo$2b2obo$5bo!

It is a predecessor of a known diehard pattern that has occured naturally multiple times. Generation 24 seems to be the common bottleneck. I was able to get surprisingly far in optimizing its bounding box.

[bibunsekibun]

I believe this is the longest lived 13-cell Methuselah (29174, 48 generations longer than Simon Ekström's Lidka predecessor).

Code: Select all

x = 16, y = 20, rule = B3/S23
2o$bobo$bo14$2bo$2bo$2b3o9bo$14b2o!

[GUYTU6J]

Possible component reaction (Compare generation 8 and the target still life)...

Is it inspired by the synthesis of Cthulhu? Injecting the LoM without interfering with either the base or the southeast active region (or its equivalents) seems very difficult.

---
The following edge-shooting 10G synthesis of xs16_4a9l6o8zx121 based on this soup is the longest-lived reaction I have ever used for syntheses, even when not considering the cleanup by glider_destruction.py:

Code: Select all

#C [[ ZOOM 12 X 55 Y -50 ]]
x = 150, y = 115, rule = B3/S23
123b2o5b2o$122bo2bo4bobo$123b2o6bo7$119bo9b3o$118bobo8bo$118bo2bo8bo$
119b2o$129bo18b2o$129b2o16b2o$128bobo18bo97$b2o$obo$2bo!

Previous record for those who prefer tighter history over cheaper cost:

Code: Select all

#C [[ GRID MAXGRIDSIZE 14 THEME Catagolue ]]
#CSYNTH xs16_4a9l6o8zx121 costs 12 gliders (true).
#CLL state-numbering golly
x = 109, y = 18, rule = B3/S23
14bo$12b2o$13b2o88bo$97bobo3bobo$bo96b2o3b2o$2bo95bo$3o53bobo3b2o$
18bo38b2o2b2o43b2o$12bo3b2o39bo5bo37bo4bobo$12b2o3b2o35bo44b3o4bo$
11bobo36b2obobo39b2obo$49bobob2o39bobob2o$49bo2bo8b3o30bo2bo$3b2o
45bobo8bo33bobo$4b2o45bo10bo33bo$3bo7b2o$11bobo$11bo!

EDIT: unrelatedly, I made some oscillator syntheses.

[qqd]

Possible component reaction (Compare generation 8 and the target still life)...

Is it inspired by the synthesis of Cthulhu? Injecting the LoM without...

Nope, I was just playing around with different reactions.

[MathAndCode]

I found a way to turn a pi into a glider.

Code: Select all

x = 23, y = 18, rule = B3/S23
2o15b2o$bo15bo$bobo11bobo$2b2o11b2o2$20bo$18b3o$17bo$17b2o4$9b3o$9bobo$9bobo7b2o$19bobo$21bo$21b2o!

I would think that anything using four standard fishhook catalyses and nothing else on a historically standard input would already be known, but I don't see it in the ECC.

[Pyry Virtanen]

Recently I have thought about the following question: Which periodic objects don't have any predecessors with a smaller or equal population other than themselves (even more distant predecessors)? At least blinker, tub and clock are like this, and probably snake as well. But are there any others? Maybe canoe or longer extensions of the snake and canoe?

[KtT]

Beehive + loafer → beehive:

Code: Select all

x = 14, y = 16, rule = B3/S23
12bo$11bobo$11bobo$12bo4$7bo$6bobo$5bo2bo$6b2o2$2bo5bo$bobo3bo$o2bo3b
2o$o2b2o3bo!

[Anivec]

This barricade of blocks won’t let a glider get from one side to the other:

Code: Select all

x = 130, y = 2, rule = B3/S23
2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o
2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o$2o2b2o2b
2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o
2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o!

[Jormungant]

This barricade of blocks won’t let a glider get from one side to the other:

Code: Select all

x = 130, y = 2, rule = B3/S23
2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o
2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o$2o2b2o2b
2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o
2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o!

Derived a silly spaceship from it:

Code: Select all

x = 114, y = 71, rule = B3/S23
3$9bobo$8bo2bo$7b2o$6bo$5b4o$4bo4bo6bo$4bo2bo5b2obo$4bo2bo5bo$5bo7bo$
6b4obo6b2o$7bo3bo4bo4bo$8bo6bo$8b5o2bo5bo$15b6o10b2o$8b5o16bo4bo$8bo
19bo$7bo3bo2bo13bo5bo$6b4obo6b2o8b6o$5bo7bobo2b3o$4bo2bo5bo6bo$4bo2bo
5bo6bo5bo66b2o$4bo4bo4bo4bo4bobo4bo57bo3b3o$5b4o7b2o7b2o5bo3b2o2b2o2b
2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o3bo4b4o$6bo23bobo3b2o2b2o2b
2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o2b2o9bobo$7b2o22b2o61b2o$8bo2bo
83b2o$9bobo18b2o$28bo4bo46bo$27bo51b2o$27bo5bo45bobo20bo$27b6o67b2o$
101b2o2$74bo$73b2o$73bobo32bo$107bo$108bo2$68bo32b4o$67b2o32bo3bo$67bo
bo31bo$53b4o45bo2bo$53bo3bo$53bo$54bo2bo4bo$61b2o$42b2o17bobo$41b4o$
40b2ob2o9bo$41b2o11bo$47bobo4b2o2bo5bo2bo$46b2o2bo7bo5bo2bo$47bobo4b2o
2bo5bob2o$41b2o11bo$40b2ob2o10bo$41b4o9bo$42b2o$67bo$49b6o12b2o$49bo5b
o12bo$49bo17bo$50bo4bo4bo2bo$52b2o5bo$59bo3bo$59b4o!

[squareroot12621]

FNG period-doubler:

Code: Select all

x = 33, y = 57, rule = LifeHistory
29.A$29.3A$32.A$.2A28.2A$2.A14.A$.A15.3A$.2A17.A$19.2A5$C3.2A$2C2.2A16.
2D$.2C18.D2.D$2C20.2D6$12.D8.2A$12.D.D7.A$12.2D5.3A$19.A$9.F7$29.A$29.
3A$32.A$.2A28.2A$2.A14.A$.A15.3A$.2A17.A$19.2A5$C3.2A$2C2.2A16.2C$.2C
18.C2.C$2C20.2C6$21.2A$22.A$19.3A$19.A!

[C28]

15-bent-paperclip

Code: Select all

x = 20, y = 47, rule = B3/S23
12b2o$14bo$10bo2bo$10b3o9$9b2o$7bo4bo2$7bo4bo$7bo4bo$7bo4bo$7bo4bo$7b
o4bo$8bo2bo$8bo2bo$3b2o4b2o4b2o$3bobo2bo2bo2bobo$bobo12bobo$b2obo4b2o
4bob2o$4bobo6bobo$b2obobobo2bobobob2o$obob2ob2o2b2ob2obobo$obobo2bo4b
o2bobobo$bo2b2o8b2o2bo$2b2o2bo6bo2b2o$4b2o8b2o$4bo10bo$b2obo2b6o2bob2o
$2bobobo6bobobo$2bobobo6bobobo$b2obo2bo4bo2bob2o$2bob2o8b2obo$2bobo10b
obo$b2obo2bo4bo2bob2o$4bobobo2bobobo$4bo3b4o3bo$5b2o6b2o$8b4o$3b4obo2b
ob4o$3bo2b2o4b2o2bo!

[qqd]

Is this transparent reaction useful? (Acts on a B):

Code: Select all

x = 8, y = 7, rule = B3/S23
2o$2o3$6bo$5b3o$4b2obo!

EDIT: It apparently has already found applications in some areas.

[squareroot12621]

Is this transparent reaction useful? (Acts on a B):

Code: Select all

x = 8, y = 7, rule = B3/S23
2o$2o3$6bo$5b3o$4b2obo!

Maybe—this conduit produces two gliders, but also two blocks.

Code: Select all

x = 48, y = 36, rule = LifeHistory
31.2A$31.2A4$46.2A$46.A$44.A.A$44.2A5$36.D$18.2D17.2D$13.D4.2D16.2D$12.
2D$2.2A8.D.D$.A.A$.A$2A5$20.2D$20.2D3$11.2A$11.2A17.2A$30.2A2$17.C$16.
3C$15.2C.C!

Edit: The blocks can be cleaned up with one glider, but I can't seem to put some of the smaller reflectors together to get a 1hd offset:

Code: Select all

x = 48, y = 36, rule = LifeHistory
31.2A$31.2A4$46.2A$12.D2.D5.D24.A$11.2D2.D5.D22.A.A$5.2D5.D2.2D3.2D22.
2A$4.2D6.D2.D.D.D.D$6.D.D2.3D.D.D2.2D$9.D$10.D.D$11.2D$10.3D5.2D$18.2D
$13.D.D$2.2A10.2D$.A.A10.D$.A$2A5$20.2D$20.2D3$11.2A$11.2A17.2A$30.2A
2$17.C$16.3C$15.2C.C!