Execution of Old Guns by Variable-Speed Firing Squad

[Moosey]

Congratulations!

POTY?

Not hard to see that, definitely in the top three unless someone discovers a whole lot of fascinating new patterns.

[calcyman]

It might also be worth thinking about reviving the old more efficient 9hd and 10hd construction arms, since the Bandersnatch can create parallel glider streams that close together, whereas Snark reflectors need 18hd, or 19hd I think for the standard slsparse-constructible version:

On a related note, the Bandersnatch can provide a glider that's compatible with the rectifier, resulting in an efficient stable merge circuit:

Code: Select all

x = 118, y = 118, rule = LifeHistory
4B$.4B$2.4B$3.4B$4.4B25.A$5.4B25.A$6.4B22.3AB$7.4B22.4B$8.4B22.4B$9.
4B22.4B$10.4B22.4B$11.4B22.4B$12.4B22.4B$13.4B22.4B25.A$14.4B22.4B23.
A.A$15.4B22.4B22.A.A$16.4B22.4B20.2A.3A$17.4B22.4B7.2A11.B4.A$18.4B
22.4B5.B2AB4.2B2.B2AB3A$19.4B22.4B3.7B.6B2A.A$20.4B22.22B$21.4B22.19B
$22.4B22.19B$23.4B22.18B$24.4B20.19B$25.4B18.20B.2B$26.4B17.22B2A$27.
4B16.13BA6B.B2A$28.4B13.14BABA5B2.B$29.4B12.14BA2BA5B$30.4B10.16B2A5B
$31.4B8.2AB2.19B$32.4B6.A.AB2.20B$33.4B5.A4.3B.16B2A$34.4B3.2A3.21B2A
$35.4B7.10B2.7B.2B$36.4B6.10B2.6B$37.4B7.8B3.4B$38.4B6.4B.2B3.2B$39.
4B6.3B5.B2AB$40.4B5.4B5.2A$41.4B5.4B9.3B$42.4B5.4B7.5B$43.4B5.4B6.6B$
44.4B5.4B5.2BA4B$45.4B5.4B4.BABA4B$46.4B5.4B2.2BABA6B$47.4B5.4B2.2BA
8B$48.4B5.4B2.10B$49.4B5.4B.10B$50.4B5.15B$51.4B5.14B$52.4B5.13B$53.
4B5.12B$54.4B5.11B$55.4B5.12B$56.4B3.14B2.B$57.4B.19B$58.24B$59.14B2A
7B$57.16B2A8B$57.26B$55.2AB.24B$54.A.AB4.21B$54.A7.22B$53.2A9.20B$65.
19B2A$65.14B4.A2BA2.2A$66.13B4.ABAB3.A$64.2AB.11B5.A4B.A.2A$63.A.AB3.
9B7.B2A.A.A$63.A7.6B9.BAB.A2.A$62.2A8.4B8.A4.A2.2A$73.4B7.5A$74.4B$
75.4B7.2A.A$76.4B6.A.2A$77.4B$78.4B$79.4B$80.4B$81.4B$82.4B$83.4B$84.
4B$85.4B$86.4B$87.B3A$88.A3B$89.A3B$90.4B$91.4B$92.4B$93.4B$94.4B$95.
4B$96.4B$97.4B$98.4B$99.4B$100.4B$101.4B$102.4B$103.4B$104.4B$105.4B$
106.4B$107.4B$108.4B$109.4B$110.4B$111.4B$112.4B$113.4B$114.4B$115.3B
$116.2B$117.B!

[dvgrn]

On a related note, the Bandersnatch can provide a glider that's compatible with the rectifier, resulting in an efficient stable merge circuit...

This is wandering a little far afield from the building-glider-guns topic, but if someone comes up with a slow-salvo-compatible seed for an eater3 that allows for building any orientation of rectifier, would that now be worth adding to slsparse's library? It's not there already, is it?

[otismo]

Congratulations!

POTY?

Not hard to see that, definitely in the top three unless someone discovers a whole lot of fascinating new patterns.

@ Moosey

hello. what do you feel are the other two of the top three ? may I have links, please ? ( do not want to be missing anything... )

Thank You !

[Extrementhusiast]

HOW DID I MISS THAT!?
I never should have asked for help.

[Jormungant]

He he he. I'am sorry to say this, but that's the second time you miss a fix using eater 2 in the last 4 weeks^^
viewtopic.php?f=2&t=576&start=1800#p96069

Time to learn .

(or keep feeding us your delicious partials solutions, that's fine too ^^)

Still, congrats ^^

[calcyman]

Also, observe that removing one of the blocks produces a moderately edgy longboat in passing:

Code: Select all

x = 36, y = 42, rule = LifeHistory
CBC$B2CB$.C3B$2.4B25.A$3.4B23.A.A$4.4B22.A.A$5.4B20.2A.3A$6.4B7.2A11.
B4.A$7.4B5.B2AB4.2B2.B2AB3A$8.4B3.7B.6B2A.A$9.22B$10.19B$11.20B$12.
20B$11.21B$10.24B$10.23B2D$10.13BA8BDBD$8.14BABA6BDBD$8.14BA2BA6BD$7.
16B2A5B$6.2AB2.19B$5.A.AB2.20B$5.A4.3B.16B2A$4.2A3.21B2A$9.10B2.7B.2B
$9.10B2.6B$11.8B3.4B$11.4B.2B3.2B$12.3B5.B2AB$12.4B5.2A$13.4B$14.4B$
15.4B$16.4B$17.4B$18.4B$19.4B$20.4B$21.2BDB$22.2B2D$23.2D!

This opens up interesting possibilities.

[Kazyan]

Smaller p70 gun using Goldtiger's periodic G->2G variant of the new reflector:

Code: Select all

x = 61, y = 69, rule = LifeHistory
17.2A16.A$16.A2.A13.3A$11.A2.A2.A.A12.A$11.5A.A.2A11.2A$17.AB.BAB6.5B
$13.2ABA.3BAB4.BA3B$12.A.B.2A3BA5BABA3B$12.A.ABA.3BAB.2BA2BA4B$13.A3.
AB.BAB.3B2A4B$14.2A.A.2A5.6B$15.A.A.A6.5B$14.A2.A.A5.7B$14.2A2.A5.4B.
4B$23.BA2B3.4B$22.2A2B5.4B$21.2B2A7.4B$20.4B9.4B$19.4B11.4B$18.4B13.
4B$17.4B15.2B2A$16.4B17.BABA$2A13.4B19.A3B$.A12.4B21.4B$.A.AB2.B5.4B
23.4B$2.2AB.3B3.4B25.4B$4.6B.4B20.A6.4B10.2A$4.2B3A5B20.A.A6.4B9.A$4.
2BA6B21.A.3A5.4B10.A$5.B2A3BA21.2A4.A5.4B5.5A$5.7BA21.A.2A.A5.4B4.A$
6.4B3AB18.B.A.A2.A.AB.7B2.B3A$6.3B2.4B15.2B3A2.A2.2AB.7B3.2B.A$6.3B3.
4B14.2A3.2A5.12B4A$6.A6.4B14.AB2A7.7B2A3BAB2.2A$4.A3BA5.4B4.2A6.B2A.A
7.7B2A2B.B3A2.A$4.5B6.4B4.A2.2A2.BAB9.10B3.B.A.2A$3.A5BA6.4B3.A.A.A3.
B9.3A5B8.A$.3A.3A.3A5.4B3.A.B4.B3.B4.3BA5B7.2A$A3.2AB2A3.A5.4B4.2B.3B
2.8BA2.3B$A.3A.A.4A7.4B2.7B.9B3.5B$.A3.3B12.4B.16B7.2A$3.A.A.A.2A.A8.
20B7.A$2.2A.3A.A.2A8.21B7.3A$3.A.A2.A12.20B10.A$3.A2.2A12.21B$2.2A15.
23B$18.2A9BA12BA$18.2A7BABA9B.3BA$19.9B2A6B5.3AB$20.16B6.4B$20.18B5.
4B$21.8B2A8B5.4B$20.8BA2BA7B6.4B$19.BA8BABA6B8.4B$19.BA9BA8B2.2A4.4B$
20.18B.2B2AB4.4B$20.6B2A9B2.2B2A6.4B$19.17B3.2BAB7.4B$17.A.BAB.14B2.B
A.AB7.4B$15.3A2BAB5.B2.B2.B2AB3.AB.2AB6.4B$14.A4.A6.3B5.2A6.3B2AB5.4B
$15.3A.2A5.B2AB12.A3BA.A5.4B$17.A.A7.2A15.ABAB3A4.4B$17.A.A24.BAB4.A
4.4B$18.A24.A.AB3A.A5.3BA$42.A.A.A2.A.2A5.ABA$42.A.A.2A.A9.2A$43.2A.A
2.A10.B$47.2A!

A p77 would also be very likely, but I can find no p7 or p11 sparker that fits in the southeast.

[Entity Valkyrie 2]

HOW DID I MISS THAT!?
I never should have asked for help.

Hey mate, you already received credit for the reaction. Just keep up with your partials.

[Hunting]

Congratulations!

POTY?

Not hard to see that, definitely in the top three unless someone discovers a whole lot of fascinating new patterns.

@ Moosey

hello. what do you feel are the other two of the top three ? may I have links, please ? ( do not want to be missing anything... )

Thank You !

First place is Rob's p16. Second place is Silverfish.

[Entity Valkyrie 2]

Potential Bandersplitter: Can a catalyst replace the long boat?

Code: Select all

x = 32, y = 30, rule = B3/S23
27bo$26bobo$2bo23bobo$3b2o20b2ob3o$2b2o9b2o16bo$13b2o10b2ob3o$25b2obo
7$28b2o$19bo8b2o$18bobo$18bo2bo$19b2o$2b2o$bobo$bo24b2o$2o24b2o5$18bo$
17bobo$16bobo$16b2o!

It's a pity that this neither extracts the left glider, and even turns the boat-with-tail into a table-with-tail.

Code: Select all

x = 32, y = 31, rule = B3/S23
27bo$26bobo$2bo23bobo$3b2o20b2ob3o$2b2o9b2o16bo$13b2o10b2ob3o$25b2obo
7$28b2o$19bo8b2o$18bobo$18bo2bo$19b2o$2b2o$bobo$bo24b2o$2o24b2o5$6b2o
10bo$7bo7bobobo$4b3o6b3ob2obo$4bo7bo7bo$12b2o6b2o!

[Sphenocorona]

This is sort of a response to my other post over in Oscillator Discussion, so if you're the type who likes riddles and wants to try and figure out the oscillator's "special property" for yourself, you might want to take a look there first.



Anyway, for everyone who just wants to know what's up, here's the underlying mechanism which gives the oscillator its period, in its unsupported and incomplete monomer form. I think it should be evident why this is potentially promising for reducing the bounding box of the p143 gun - the Bandersnatch just simply feeds itself its own output in the process of spitting out a Herschel, with only a couple small modifications needed to achieve it:

Code: Select all

x = 32, y = 31, rule = LifeHistory
28.B$18.2E7.2B$5.D12.2E6.3B$4.DBD3.4B.B.2B6.4B$4.DBD12B.2B2.4B$3.2BD
17BD3B$3.20BDBD$3.9B2D9B3DB$3.9B2D11BD$4.21B$2.4B.19B$2.2A2.21B$3.A2.
20B2A$3A4.8BCBC8B2A$A9.5B2C10B$5.B4.6BC9B$4.2AB.18B$4.2A9B2C8B$5.B.7B
C2BC8B$7.7BCBC10B$7.8BC11B$8.18B$9.17B$10.17B$9.14B.B2A.A$9.B2AB2.B2.
B5.B2AB3A$10.2A5.3B6.B4.A$16.B2AB5.2A.3A$17.2A7.A.A$26.A.A$27.A!

The normal eater position for getting a LOM out normally eats the B before it can turn into a Herschel and start the cycle over with its FNG, and I haven't been able to find any substitutes with better clearance. The hive is easy to clean up when there's not a second copy of everything bolted on, but the B's block is... problematic. There is a little bit of access to the reaction as it goes by though, which means there's at least a *bit* of hope for cleaning it up somehow.

There's also the possibility that maybe there's a better way to dimerize it that allows for a signal to be extracted. If it weren't for the hive and the need to clean it up, it'd be possible to get an R out with the form of the oscillator I posted in the other thread.

[MikeP]

Re the Bandersnatch:

This reflector doesn't win Mike Playle's award, since the requirements are:

To be explicit, the reflector must fit in a 25x25 bounding box, and have a repeat time of 50 generations or less.

Whereas, mine and EE's reflector:

Mine and EE's reflector fits in a 32x28 bounding box, and have a repeat time of 70 generations.

Entity Valkyrie 2 is correct, however I've just followed the link and re-read my original post, and perhaps I should have been clearer.

I intended to re-offer the prize for a colour-changing equivalent to the Snark, that is a 90 degree reflector. My original post didn't state this; maybe I should go back and edit it to clarify.

To atone for my lack of precision I have decided I would like to offer another prize; referring again to my original post:

A "Snarkic" glider duplicator would be an interesting find, too.

So I'll offer 200 USD for a stable pattern which fits in a 25x25 bounding box, has a repeat time of 50 generations or less, and produces two output gliders, which must emerge in different directions, ie not parallel to one another. It's allowed for one of them to travel back towards the input glider (a 180 degree reflection) provided it does not collide with an input glider arriving from infinity.

[Kazyan]

New p170 and p255 guns:

Code: Select all

x = 165, y = 54, rule = LifeHistory
40.2A88.2A$21.2A.A.2A11.B2AB68.2A.A.2A11.B2AB$20.A2.2A.A2.A.2A.A4.3B
68.A2.2A.A2.A.2A.A4.3B$19.A.A4.A.2A.A.2A5.B.B66.A.A4.A.2A.A.2A5.B.B$
20.A.5A2.B8.5B67.A.5A2.B8.5B$10.2A10.A4.AB2A6.6B57.2A10.A4.AB2A6.6B$
9.B2AB.2A5.A2.BA.A.2A4.8B56.BABA.2A5.A2.BA.A.2A4.8B$10.3B.2A4.A.2BA.A
2.13B58.B2A.2A4.A.2BA.A2.13B$8.7B5.2A.2BA5.13B54.6AB5.2A.2BA5.13B$8.
5B11.3B3.15B53.2ABAB11.3B3.15B$8.5B12.2B3.5BA9B53.5B12.2B3.15B$5.2B.
6B10.4B.7B2A8B49.2B.2BA2BA10.4B.17B$4.2A8B3.15BABA11B48.A9B3.29B$4.2A
B.7B.15B3A2B2D9B47.2AB.BAB2A2B.16B2A2B2D9B$5.B2.24BA3BDBD9B47.B2.BABA
20B2A2BDBD9B$C7.28BD6B3.B2A6.2A3.2A28.C7.3BA24BD6B3.B2A6.2A3.2A$3C4.
35B4.A2.A4.B2AB.B2AB27.3C4.3B3A29B4.A2.A4.B2AB.B2AB$3.C2.20B2.2B2.B3.
6B5.2A.A3.4B.4B30.C2.3B3A14B2.2B2.B3.6B5.2A.A3.4B.4B$2.2C2.17B14.6B7.
A4.2B3.2B30.2C2.17B14.6B7.A4.2B3.2B$2.19B14.9B6.2A3.3A.3A2.2A26.19B
14.9B6.2A3.3A.3A2.2A$4.18B13.2A4.4B7.A.A.2B.2B.A2.A28.2BAB3A11B13.2A
4.4B7.A.A.2B.2B.A2.A$4.19B13.A5.4B6.A.A2B3.2BA.A29.B6A12B13.A5.B3A6.A
.A2B3.2BA.A$5.19B9.3A7.4B6.A3.BAB3.A31.A2BA15B9.3A7.A3B6.A3.BAB3.A$6.
7B3.4B.4B8.A10.4B6.3A3B3A33.7B3.4B.4B8.A10.A3B6.3A3B3A$7.6B4.2B3.4B
19.4B7.A.A.A4.2A30.6B4.2B3.4B19.4B7.A.A.A4.2A$6.5B5.B6.4B19.4B7.3A4.B
2A2B27.5B5.B6.4B19.4B7.3A4.B2A2B$6.4B5.3B6.4B19.4B6.3B5.4B27.4B5.3B6.
4B19.4B6.3B5.4B$6.2B2AB4.3A7.4B19.4B6.B5.5B27.2B2AB4.3A7.4B19.4B6.B5.
5B$8.2A4.A.A.A7.4B19.4B3.2B4.6B30.2A4.A.A.A7.4B19.4B3.2B4.6B$12.3A3B
3A6.4B10.A8.4B.4B3.7B33.3A3B3A6.4B10.A8.4B.4B3.7B$11.A3.BAB3.A6.4B7.
3A9.19B31.A3.BAB3.A6.4B7.3A9.19B$10.A.A2B3.2BA.A6.4B5.A13.19B29.A.A2B
3.2BA.A6.4B5.A13.19B$9.A2.A.2B.2B.A.A7.4B4.2A13.18B28.A2.A.2B.2B.A.A
7.4B4.2A13.18B$9.2A2.3A.3A3.2A6.9B14.19B26.2A2.3A.3A3.2A6.9B14.19B$
13.2B3.2B4.A7.6B14.17B2.2C30.2B3.2B4.A7.6B14.17B2.2C$12.4B.4B3.A.2A5.
6B3.B2.2B2.20B2.C30.4B.4B3.A.2A5.6B3.B2.2B2.20B2.C$12.B2AB.B2AB4.A2.A
4.35B4.3C27.B2AB.B2AB4.A2.A4.35B4.3C$13.2A3.2A6.2AB3.6BD28B7.C28.2A3.
2A6.2AB3.6BD28B7.C$27.9BDBD3BA24B2.B47.9BDBD3BA24B2.B$28.9B2D2B3A15B.
7B.B2A47.9B2D2B3A15B.7B.B2A$29.11BABA15B3.8B2A48.11BABA15B3.8B2A$14.A
2.2A.A2.A5.8B2A7B.4B10.6B.2B34.A2.2A.A2.A5.8B2A7B.4B10.6B.2B$13.A.A2.
A.6A4.9BA5B3.4B10.5B36.A.A2.A.6A4.9BA5B3.4B10.5B$11.3A.A.A8.A3.15B3.
2BA2B.2A6.5B34.3A.A.A8.A3.15B3.2BA2B.2A6.5B$10.A3.A.A.4BA2B2A4.13B5.A
BA2B.A4.7B33.A3.A.A.4BA2B2A4.13B5.ABA2B.A4.7B$10.A.A.A.A.6AB2.2A4.13B
2.A.A2B.A4.2A.3B35.A.A.A.A.6AB2.2A4.13B2.A.A2B.A4.2A.3B$11.3A2B5A.5BA
.BA.8B4.2A.A.AB2.A5.2A.B2AB35.3A2B5A.5BA.BA.8B4.2A.A.AB2.A5.2A.B2AB$
25.3BABA7B6.2ABA2.4A.A7.2A50.3BABA7B6.2ABA2.4A.A7.2A$11.3A2B5A.5BA.BA
.6B7.B2.A.A3.A.A44.3A2B5A.5BA.BA.6B7.B2.A.A3.A.A$10.A.A.A.A.6AB2.2A3.
B.5B5.2A.2A2.A2.A.A43.A.A.A.A.6AB2.2A3.B.5B5.2A.2A2.A2.A.A$10.A3.A.A.
4BA2B2A9.4B5.A.A2.2A3.A44.A3.A.A.4BA2B2A9.4B5.A.A2.2A3.A$11.3A.A.A8.A
10.3BA4.A.A53.3A.A.A8.A10.3BA4.A.A$13.A.A2.A.6A12.3BA4.A56.A.A2.A.6A
12.3BA4.A$14.A2.2A.A2.A15.3AB61.A2.2A.A2.A15.3AB!

This loop forms a periodic family, with headaches over the "can we make it fit and with what sparkers" question.

[wwei23]

Wouldn't that also imply a new P550?
EDIT: P510

[wildmyron]

Wouldn't that also imply a new P550?
EDIT: P510

There's already a smaller p510 in the collection:
https://github.com/ceebo/glider_guns/bl ... p00510.rle

The README for the repo contains a summary of the smallest bbox area for all the gun periods up to 1024 (slightly out of date now)

[MathAndCode]

To atone for my lack of precision I have decided I would like to offer another prize; referring again to my original post:

A "Snarkic" glider duplicator would be an interesting find, too.

So I'll offer 200 USD for a stable pattern which fits in a 25x25 bounding box, has a repeat time of 50 generations or less, and produces two output gliders, which must emerge in different directions, ie not parallel to one another. It's allowed for one of them to travel back towards the input glider (a 180 degree reflection) provided it does not collide with an input glider arriving from infinity.

Ah, the acclaimed Snark-finder has received more enlightenment about what types of patterns that we currently do not have would allow the Life community to prosper and seeks to guide us toward the light with monetary reward. Come and present your other ideas before the council.

In less archaic-sounding English, I have noticed that both you and I seem to be good at thinking of new ideas that others had not previously thought of. For example, you had the idea of searching for non-square toroidal agars, and I had the idea of inserting the honey farms into a Snark loop from a cheaper direction. I figured that I therefore might be able to get some useful advice for you, like how to sort through all of the ideas and figure out which are the most practical.
Also, speaking of your searching of repeated soups, have you thought of searching toroidal soups where the repeating tile is a parallelogram whose sides can have any direction instead of restricting it to a rectangle with rectilinear alignment? (Searching parallelograms where only one pair of sides is oriented rectilinearly and where the parallelograms can meet two corners and one edge to a vertex instead of four corners to a vertex might be an equivalent that would be easier to code.) I think that at least squares and rectangles with 45° orientations are worth searching. Theoretically, one could also search triangles (including scalene triangles and triangles with no side oriented rectilinearly or at a 45° angle from rectilinear), parallelograms (with at least one pair of sides oriented rectilinearly or 45° from rectilinear) with Klein bottle geometries, rectangles (including squares) with projective plane geometry (Parallelograms with projective plane geometry with one pair of sides oriented rectilinearly and the other pair of sides oriented 45° from rectilinear could also have agars, but these would not be able to tile the infinite plane.), squares and isosceles right triangles (with any orientation) with spherical geometry, and other possibilities as well. Of course, any agar tiling of the infinite plane could be found by only searching rectilinearly oriented rectangles, or even rectilinearly oriented squares, but the size would have to be much larger, so the chance of each tiling getting found in any single run would be much less.

[MikeP]

I figured that I therefore might be able to get some useful advice for you, like how to sort through all of the ideas and figure out which are the most practical.

I can't suggest anything beyond trying them and seeing which ones work.

Every Life search program I've seen suffers from the "limitation" that it can only find results when it's running. "Throw lots of CPU time at it" would be my top suggestion.

Also, speaking of your searching of repeated soups, have you thought of searching toroidal soups where the repeating tile is a parallelogram whose sides can have any direction instead of restricting it to a rectangle with rectilinear alignment? (Searching parallelograms where only one pair of sides is oriented rectilinearly and where the parallelograms can meet two corners and one edge to a vertex instead of four corners to a vertex might be an equivalent that would be easier to code.)

Surely a parallelogram tiling with four corners meeting at a vertex is the same as a rectangle?

Two corners meeting an edge might be interesting; a torus with an extra "twist". Golly supports this topology; I could too. I'm not sure this thread's the right place for it, though.

[MathAndCode]

I figured that I therefore might be able to get some useful advice for you, like how to sort through all of the ideas and figure out which are the most practical.

I can't suggest anything beyond trying them and seeing which ones work.

Every Life search program I've seen suffers from the "limitation" that it can only find results when it's running. "Throw lots of CPU time at it" would be my top suggestion.

Thanks for the advice. I've done both manual and automated searches, and I have seen that computer searches are faster (although I could have figured that).

Also, speaking of your searching of repeated soups, have you thought of searching toroidal soups where the repeating tile is a parallelogram whose sides can have any direction instead of restricting it to a rectangle with rectilinear alignment? (Searching parallelograms where only one pair of sides is oriented rectilinearly and where the parallelograms can meet two corners and one edge to a vertex instead of four corners to a vertex might be an equivalent that would be easier to code.)

Surely a parallelogram tiling with four corners meeting at a vertex is the same as a rectangle?

Two corners meeting an edge might be interesting; a torus with an extra "twist". Golly supports this topology; I could too. I'm not sure this thread's the right place for it, though.

I don't think that there's an agar discussion thread, so I'll make one then put the link here.



Edit: I'm still typing a response, but learning LifeSuper might take a while, so I created the thread here. Even before I'm finished with my response, you can elaborate more on what you mean in that thread if you want.

[Kazyan]

Per some discussion in another thread, MathAndCode's new H-to-G does allow for a slightly smaller p536 gun than the one previously based on the p448 family. This post is most to confirm that, yes, it is indeed helpful:

Code: Select all

x = 73, y = 62, rule = LifeHistory
44.2A$6.A18.2A.A.2A11.B2AB$5.B3A10.A4.A2.2A.A2.A.2A.A4.3B$6.3BA7.3A3.
A.A4.A.2A.A.2A5.B.B$7.B2AB5.A7.A.5A2.B8.5B$8.7B.2A8.A4.AB2A6.6B$9.9B
7.A2.BA.A.2A4.8B$10.6B8.A.2BA.A2.13B$11.5B8.2A.2BA5.13B$10.7B11.3B3.
15B$11.6B12.2B3.15B$11.7B10.4B.17B$11.6B4.29B$11.7B2.16B2A2B2D9B$2A9.
7B2.16B2A2BDBD9B$.A8.9B.20BD6B3.B2A$.A.AB6.35B4.A2.A$2.2AB.B.B.20B2.
2B2.B3.6B5.2A.A$4.23B14.6B7.A$4.21B14.9B6.2A$4.20B15.2A4.4B22.A$5.20B
15.A5.4B12.2A5.3A$5.20B12.3A7.4B10.B2AB3.A$6.17B.B2A10.A10.4B9.3B4.2A
$6.14B4.BA.A21.4B.2B2.AB2.B2.5B$8.10B9.A22.6B4A8B$8.11B8.2A21.5BAB5A
5B2A$8.11B31.4B2A6BA4B2A$9.9B32.5B3ABA3BA2B.B$10.7B8.2A21.2AB.4B2A2BA
BA3B$10.7B8.A21.A.AB4.7B$11.7B4.BA.A21.A8.7B$7.14B.B2A21.2A8.7B$5.B.
2B2A12B32.9B$4.2A3B2A12B31.9BAB$4.2A17B21.2A8.8B3A$5.18B22.A9.6BA2BA$
3.5B2.B2.2B2.2B.4B21.A.AB4.7B2AB3AB$3.2A4.3B9.4B10.A10.2AB.10B5ABA$4.
A3.B2AB10.4B7.3A12.12BA2BA4B$.3A5.2A12.4B5.A15.17BA2B$.A22.4B4.2A15.
20B$17.2A6.9B14.16BABA2B$18.A7.6B14.19BA3B$18.A.2A5.6B3.B2.2B2.20B.B.
B.B2A$19.A2.A4.19BD15B6.BA.A$20.2AB3.6BD13BDBD4B.9B8.A$21.9BDBD2B2A9B
3D4B2.7B9.2A$22.9B2D2B2A11BD4B2.7B$23.29B4.6B$23.17B.4B10.7B$24.15B3.
2B12.6B$24.15B3.3B11.7B$25.13B5.A2B.2A8.5B$27.13B2.A.A2B.A8.6B$26.8B
4.2A.A.AB2.A7.9B$26.6B6.2ABA4.A8.2A.7B$26.5B8.B2.5A.A7.A5.4B$26.B.B5.
2A.A.2A.A4.A.A3.3A7.4B$27.3B4.A.2A.A2.A.2A2.A4.A10.3BA$26.B2AB11.2A.A
.2A17.3BA$27.2A37.3AB!

[wwei23]

Per some discussion in another thread, MathAndCode's new H-to-G does allow for a slightly smaller p536 gun than the one previously based on the p448 family. This post is most to confirm that, yes, it is indeed helpful:

One of those eaters is unnecessary.

Code: Select all

x = 73, y = 62, rule = LifeHistory
44.2A$25.2A.A.2A11.B2AB$5.B13.A4.A2.2A.A2.A.2A.A4.3B$17.3A3.A.A4.A.2A
.A.2A5.B.B$7.B8.A7.A.5A2.B8.5B$8.B2.4B.2A8.A4.AB2A6.6B$9.9B7.A2.BA.A.
2A4.8B$10.6B8.A.2BA.A2.13B$11.5B8.2A.2BA5.13B$10.7B11.3B3.15B$11.6B12.
2B3.15B$11.7B10.4B.17B$11.6B4.29B$11.7B2.16B2A2B2D9B$2A9.7B2.16B2A2BD
BD9B$.A8.9B.20BD6B3.B2A$.A.AB6.35B4.A2.A$2.2AB.B.B.20B2.2B2.B3.6B5.2A
.A$4.23B14.6B7.A$4.21B14.9B6.2A$4.20B15.2A4.4B22.A$5.20B15.A5.4B12.2A
5.3A$5.20B12.3A7.4B10.B2AB3.A$6.17B.B2A10.A10.4B9.3B4.2A$6.14B4.BA.A21.
4B.2B2.AB2.B2.5B$8.10B9.A22.6B4A8B$8.11B8.2A21.5BAB5A5B2A$8.11B31.4B2A
6BA4B2A$9.9B32.5B3ABA3BA2B.B$10.7B8.2A21.2AB.4B2A2BABA3B$10.7B8.A21.A
.AB4.7B$11.7B4.BA.A21.A8.7B$7.14B.B2A21.2A8.7B$5.B.2B2A12B32.9B$4.2A3B
2A12B31.9BAB$4.2A17B21.2A8.8B3A$5.18B22.A9.6BA2BA$3.5B2.B2.2B2.2B.4B21.
A.AB4.7B2AB3AB$3.2A4.3B9.4B10.A10.2AB.10B5ABA$4.A3.B2AB10.4B7.3A12.12B
A2BA4B$.3A5.2A12.4B5.A15.17BA2B$.A22.4B4.2A15.20B$17.2A6.9B14.16BABA2B
$18.A7.6B14.19BA3B$18.A.2A5.6B3.B2.2B2.20B.B.B.B2A$19.A2.A4.19BD15B6.
BA.A$20.2AB3.6BD13BDBD4B.9B8.A$21.9BDBD2B2A9B3D4B2.7B9.2A$22.9B2D2B2A
11BD4B2.7B$23.29B4.6B$23.17B.4B10.7B$24.15B3.2B12.6B$24.15B3.3B11.7B$
25.13B5.A2B.2A8.5B$27.13B2.A.A2B.A8.6B$26.8B4.2A.A.AB2.A7.9B$26.6B6.2A
BA4.A8.2A.7B$26.5B8.B2.5A.A7.A5.4B$26.B.B5.2A.A.2A.A4.A.A3.3A7.4B$27.
3B4.A.2A.A2.A.2A2.A4.A10.3BA$26.B2AB11.2A.A.2A17.3BA$27.2A37.3AB!

[dvgrn]

One of those eaters is unnecessary...

Not really -- the gun collection specifically requires a single stream of output gliders, not a multi-gun. Maybe you mean replacing the two NW eaters with the usual block?

Code: Select all

x = 73, y = 62, rule = LifeHistory
44.2A$25.2A.A.2A11.B2AB$24.A2.2A.A2.A.2A.A4.3B$14.2A7.A.A4.A.2A.A.2A
5.B.B$13.B2A2B6.A.5A2.B8.5B$14.4B8.A4.AB2A6.6B$12.6B7.A2.BA.A.2A4.8B$
12.5B7.A.2BA.A2.13B$11.6B7.2A.2BA5.13B$10.7B11.3B3.15B$11.6B12.2B3.
15B$11.7B10.4B.17B$11.6B4.29B$11.7B2.16B2A2B2D9B$2A9.7B2.16B2A2BDBD9B
$.A8.9B.20BD6B3.B2A$.A.AB6.35B4.A2.A$2.2AB.B.B.20B2.2B2.B3.6B5.2A.A$
4.23B14.6B7.A$4.21B14.9B6.2A$4.20B15.2A4.4B22.A$5.20B15.A5.4B12.2A5.
3A$5.20B12.3A7.4B10.B2AB3.A$6.17B.B2A10.A10.4B9.3B4.2A$6.14B4.BA.A21.
4B.2B2.AB2.B2.5B$8.10B9.A22.6B4A8B$8.11B8.2A21.5BAB5A5B2A$8.11B31.4B
2A6BA4B2A$9.9B32.5B3ABA3BA2B.B$10.7B8.2A21.2AB.4B2A2BABA3B$10.7B8.A
21.A.AB4.7B$11.7B4.BA.A21.A8.7B$7.14B.B2A21.2A8.7B$5.B.2B2A12B32.9B$
4.2A3B2A12B31.9BAB$4.2A17B21.2A8.8B3A$5.18B22.A9.6BA2BA$3.5B2.B2.2B2.
2B.4B21.A.AB4.7B2AB3AB$3.2A4.3B9.4B10.A10.2AB.10B5ABA$4.A3.B2AB10.4B
7.3A12.12BA2BA4B$.3A5.2A12.4B5.A15.17BA2B$.A22.4B4.2A15.20B$17.2A6.9B
14.16BABA2B$18.A7.6B14.19BA3B$18.A.2A5.6B3.B2.2B2.20B.B.B.B2A$19.A2.A
4.19BD15B6.BA.A$20.2AB3.6BD13BDBD4B.9B8.A$21.9BDBD2B2A9B3D4B2.7B9.2A$
22.9B2D2B2A11BD4B2.7B$23.29B4.6B$23.17B.4B10.7B$24.15B3.2B12.6B$24.
15B3.3B11.7B$25.13B5.A2B.2A8.5B$27.13B2.A.A2B.A8.6B$26.8B4.2A.A.AB2.A
7.9B$26.6B6.2ABA4.A8.2A.7B$26.5B8.B2.5A.A7.A5.4B$26.B.B5.2A.A.2A.A4.A
.A3.3A7.4B$27.3B4.A.2A.A2.A.2A2.A4.A10.3BA$26.B2AB11.2A.A.2A17.3BA$
27.2A37.3A!

[wwei23]

Maybe you mean replacing the two NW eaters with the usual block?

I specifically meant a double-barreled gun, because it helps population AND it can't hurt the bounding box. So what's the harm?

[dvgrn]

I specifically meant a double-barreled gun, because it helps population AND it can't hurt the bounding box. So what's the harm?

There's no harm, except that there's not a single double-barrelled gun mentioned on this thread. And population isn't actually part of the metric by which the smallest guns are judged -- it's all bounding box. This is totally arbitrary, but nice and clear and simple. Tradition! (as they say in Fiddler on the Roof).

The rules for the collection specifically require single-barrelled guns. If they didn't, things like a double-barrelled Simkin glider gun would win on bounding box over the single-barrelled version.

Anyway, the block version I posted is lower population and also doesn't hurt the bounding box.

[Kazyan]

If it's all the same to you, I find that the exact model and part number of the Herschel tranquilizer is not important unless it reduces bounding box somehow, which it does not. Anyway:

Code: Select all

#p413_osc7 family
#3894 cells. Saves 118 cells from previous p413_osc7_0
x = 66, y = 59, rule = LifeHistory
37.A$24.A10.3A$18.A2.A.A.A8.A$18.4A.A.A8.2A$11.2A10.A.2A5.4B$11.A.A6.
4A2.BA3.BAB$13.A5.AB3.AB2A2B.ABAB$13.2A2.B.2AB2A2.BA2.2B2AB.2A$11.2A
2.BAB.2AB.B.2A2.7B2A$10.A2.AB2AB.3ABA.A4.3BA3B$11.A.A2.A.A2.A.B.A4.2B
2A3B$10.2A2.A.A.4A.2A5.2BABAB$12.A.2A.A4.A6.8B$12.A4.A.2A.A5.4B2.4B$
11.2A4.2A.2A5.4B4.4B$26.4B6.4B$25.4B8.4B$24.4B10.4B22.A$9.A13.4B12.4B
12.2A5.3A$9.3A10.4B14.4B10.B2AB3.A$12.A8.4B16.4B9.3B4.2A$11.2A7.4B18.
4B.2B2.2B2.B2.5B$11.5B3.4B20.18B$13.3B2.4B21.17B2A$3.2A7.9B22.12B2A3B
2A$3.A8.8B23.12B2A2B.B$2A.A.B3.10B22.2AB.14B$A2.3AB.2B2A7B21.A.AB4.7B
$.2A2.BA3B2A7B21.A8.7B$3.4A12B20.2A8.7B$3.A.2B3.7B.B2A27.9B$4.3AB2.7B
.BA.A25.11B$7.A3.5B5.A15.2A8.11B$2.5A5.4B5.2A15.A9.10B$2.A10.4B21.A.A
B4.14B$4.A9.4B10.A10.2AB.17B$3.2A10.4B7.3A12.20B$16.4B5.A15.20B$17.4B
4.2A15.20B$10.2A6.9B14.21B$11.A7.6B14.23B$11.A.2A5.6B3.B2.2B2.20B.B.B
.B2A$12.A2.A4.35B6.BA.A$13.2AB3.27B.9B8.A$14.14B2A16B2.7B9.2A$15.13B
2A16B2.7B$16.29B4.6B$16.17B.4B10.7B$17.15B3.2B12.6B$17.15B3.3B11.7B$
18.13B5.A2B.2A8.5B$20.13B2.A.A2B.A8.6B$19.8B4.2A.A.AB2.A7.9B$19.6B6.
2ABA4.A8.2A.7B$19.5B8.B2.5A.A7.A5.4B$19.B.B5.2A.A.2A.A4.A.A3.3A7.4B$
20.3B4.A.2A.A2.A.2A2.A4.A10.4B$19.B2AB11.2A.A.2A17.4B$20.2A37.4B!