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[mniemiec]

13 gliders: ... Unfortunately not an improvement.

This can be reduced to 12 by building the still-lifes simultaneously. This could previously be done from 11 gliders (my web page currently says 12, but most blocker-based oscillators were improved by 1 by Bob Shemyakin's 5-glider blocker synthesis from no later than 2015):

Code: Select all

x = 180, y = 77, rule = B3/S23
o$boo$oo4$8bo90bo$9bo20boo18boo18boo18boo7bobo18boo6boo10boo6boo20boo
6boo$7b3o16boobobboboo10boobobboboo10boobobboboo10boobobboboo3boo15boo
bobboboobboo6boobobboboobboo16boobobboboobobo$11bo14bo4bobboo10bo4bobb
oo10bo4bobboo10bo4bobboo6boo12bo4bobboo10bo4bobboo20bo4bobboobo$11boo
17bo19bo19bo19bo11bobo15bo19bo29bo6bo$10bobo14bobo17bobo17bobo17bobo
12bo14bobo17bobo27bobo7bobo$178boo3$32boo18boo90boo$31bobbo16bobbo88bo
bo3bo$32boo18boo91bo3boo$17bo37b3o90bobo$16boo37bo96b3o$16bobo37bo95bo
$153bo6$155boo$154boo$156bo14$101bo$99boo$100boo4$135bo$136boo$95bo39b
oo$93bobo13boo38boo$94boo12bobo37bobo$97bo11bo18bo20bo$97boo30boo$96bo
bo29boo$118bo39bo11boo6boo$107boo8bobo27boo8bobo6boobobboboobobo$106bo
bbobboo3bobbo15bo9bobbobboo3bobbo5bo4bobboobo$97boo8boobbobbo3boo16boo
9boobbobbo3boo10bo6bo$96bobo13bobo10boo8bobo14bobo12bobo7bobo$78b3o17b
o14bo12boo25bo24boo$80bo44bo$79bo$$96bo$95boo$95bobo$78bo$78boo$77bobo
3$148boo$148bobo$148bo!

[Kazyan]

The honey farm explosion can be controlled with one fewer glider, allowing this to tie the old method:

Code: Select all

x = 51, y = 41, rule = B3/S23
18bo$17bobo25b2o2b2o$17bo2bo24bo4bo$18b2o26b4o2$48b2o$16b2o30b2o$15bo
2bo$16bobo$17bo29bob2o$24b2o21bobo$18bo4bobo22bo$17bobo4bo23b2o$17bobo
28b2o$18bo29b2o8$17b3o5b2o$19bo5bobo$18bo6bo7$38b2o$37b2o$39bo5$2o$b2o
$o!

[Apple Bottom]

Third copperhead in D2_+2:

Code: Select all

x = 16, y = 32, rule = B3/S23
bobboooobooboboo$
obbooooobboobboo$
obboobbobbbooobo$
oobbooobbboooobb$
bboooooobobboobb$
bbbbobobobobooob$
ooobbboobboboobb$
bbbbbbboboobobbo$
ooobbboobobbbobo$
oooboooobobobbob$
oobobobbobbooobo$
oobooooboboooobb$
bobobboobbbboboo$
boobobboooobbboo$
bbbobobboboboobo$
ooboboboooobbboo$
ooboboboooobbboo$
bbbobobboboboobo$
boobobboooobbboo$
bobobboobbbboboo$
oobooooboboooobb$
oobobobbobbooobo$
oooboooobobobbob$
ooobbboobobbbobo$
bbbbbbboboobobbo$
ooobbboobboboobb$
bbbbobobobobooob$
bboooooobobboobb$
oobbooobbboooobb$
obboobbobbbooobo$
obbooooobboobboo$
bobboooobooboboo!

Also, this xp7 showed up in D2_x. I presume that's a known object?

Code: Select all

x = 16, y = 16, rule = B3/S23
ooboooooobooobob$
oooobooboboboobb$
boobobbobooooobo$
oobooobbboobbbob$
obooobooooobooob$
oobobobobbbobbbb$
oobboboooobooboo$
obobooooooobbbbb$
oobboboobboboobb$
bboooboobobbbboo$
ooooobboobobbbob$
obobboobbbbbbbbb$
ooobobobobbboobo$
boobobbbobbbobbb$
obboobobboobbbob$
bbobbbobbobbobbo!

EDIT: doesn't seem to be on Pentadecathlon, unless I missed a smaller variant.

[muzik]

3 copperheads now?

[muzik]

3 Coe ships now as well:

Code: Select all

x = 16, y = 16, rule = B3/S23
bob2o2b2ob2o2b2o$b2ob3o2b2obob2o$obo4b2obo4bo$2o5b2o3b3o$5b3obob2o$o4b
o3b2o2bobo$2o4b3o3bob2o$bobobobo2bo3bo$ob3ob3o6bo$obob2o2b3ob3o$6b5o2b
3o$2b2obo2b2obo2b2o$4bo2bo2b2ob3o$4obo2b2ob3o$bo2b2ob3o2b3o$b3o2bo2b2o
b2o!

and yet this guy is unheard of

[dvgrn]

Also, this xp7 showed up in D2_x. I presume that's a known object?
...
EDIT: doesn't seem to be on Pentadecathlon, unless I missed a smaller variant.

I can't find the object in jslife, and it's certainly not in Dean Hickerson's oscillator collection --

Code: Select all

x = 13, y = 13, rule = B3/S23
9bo2bo$7b6o$6bo$5bobob2o$5b3o3bo$3b2o3bo2bo$2bobo3bobo$bob2o$bo3b2o$2o
bo$bobo2bo$bo2b2o$2o!
#C [[ THUMBNAIL GPS 7 AUTOSTART ]]

Anybody have any prior art for this?

I'm still waiting patiently for the first p7 to show up in the C1 census. (Or another new prime period -- I'm not too picky.)

[Goldtiger997]

Here is a 16 glider synthesis for a unnamed largish p3 oscillator

Code: Select all

x = 81, y = 99, rule = B3/S23
79bo$78bo$78b3o4$bo$2bo$3o21$66bo$39bo25bo$37bobo25b3o$38b2o11b2o4bobo
$35b2o13b2o6b2o8b3o$34bobo15bo5bo9bo$36bo32bo$47b3o8b3o$49bo8bo$48bo
10bo14$51bo$49b2o$50b2o2$53bo$52b2o$52bobo37$5b3o$7bo8b3o$6bo11bo$17bo
!

Can anyone find a way to improve its cleanup?

Also for a name, maybe something to do with "slowing lump of muck" (as part of it looks like one of the stages for lumps of muck)?

[Extrementhusiast]

Also for a name, maybe something to do with "slowing lump of muck" (as part of it looks like one of the stages for lumps of muck)?

That's a stator variant of the stillator.

[muzik]

*stillater

[Sokwe]

Anybody have any prior art for this [p7 oscillator]?

I found it back in September 2014 in a random agar search. It's included in my jslife osc supplement collection.

[muzik]

New c1 zzlinear

Code: Select all

x = 16, y = 16, rule = B3/S23
oobobbbooobooobb$
oobbobbbbboobbbb$
bbbboobbbobbboob$
obooooooboboobob$
boboobboobbbobob$
bbbobbbbbboobobo$
obooobboobboboob$
obobbobobboboooo$
booooboobobboboo$
bobboobobbbbobob$
bobboobobbobbobb$
obbboboobbbbbbbo$
bbobobbbbbobbboo$
oobobobobobbobob$
oooboboboobooboo$
boobbobboobooooo!

[mniemiec]

Here is a 16 glider synthesis for a unnamed largish p3 oscillator ... Can anyone find a way to improve its cleanup?

Nice. Actually, it's only 14 gliders, and cleanup can be done with 3 gliders instead of 4, reducing it to 13. (It might also be possible with 2 if you look hard enough):

Code: Select all

x = 280, y = 71, rule = B3/S23
230bo$69bo135booboo21bo13booboo25booboo$42bo25bo39bo59bo35boboboo19b3o
12boboboo24boboboo$40bobo25b3o11boo23bobo32boo23bobo23boo9bobo26boo9bo
bo27bobo$obo38boo39boo23bobo32boo10boo11bobo23boo8booboboo23boo8boobob
oo23booboboo$boo19bo15boo22bo8b3o28bo5bo44boo7bo5bo35bo4bo34bo4bo24bo
4bo$bo19bobo13bobo21bobo7bo29bobo51bo5bobo40bob3o35bob3o25bob3o$22boo
15bo22boo8bo29boo58boo41bo39bo29bo$b3o146b3o53b3o37b3o27b3o$bo150bo55b
o39bo29bo$bbo148bo18$89bo59bo$89bo59bo$89bo59bo$$45boo$44bobo$46bo$48b
3o$48bo$49bo26$110b3o$112bo$111bo3$119b3o$121bo$120bo!

[Extrementhusiast]

One of the 33-bit SLs that showed up on Catagolue suddenly makes the Snark much more likely to construct:

Code: Select all

x = 38, y = 35, rule = B3/S23
15b2o$15b2o17b2o$28bo6bo$28bo6bobo$28bo7b2o3$24b2o$24b2o2$15bo2b3o$16b
o$14b3o6bo$9b2o11bobo$9b2o12b2o7$2o$2o2$12bo$11bobo$11bobo$12bo5$15bo$
14bobo$15bo!

[gmc_nxtman]

One of the 33-bit SLs that showed up on Catagolue suddenly makes the Snark much more likely to construct:

Code: Select all

x = 38, y = 35, rule = B3/S23
15b2o$15b2o17b2o$28bo6bo$28bo6bobo$28bo7b2o3$24b2o$24b2o2$15bo2b3o$16b
o$14b3o6bo$9b2o11bobo$9b2o12b2o7$2o$2o2$12bo$11bobo$11bobo$12bo5$15bo$
14bobo$15bo!

Wow!

In other news, a possible method to synthesise 2 pulsar quadrants:

Code: Select all

x = 12, y = 10, rule = B3/S23
9bobo$9b2o$2bobo5bo$2bo2bo$2bo3bo$6bo$3bo2bo$o3b2o$b2o$2o!

EDIT: Found this weird soup that produces a temporary queen bee shuttle and permanent 2 pulsar quadrants:

Code: Select all

x = 16, y = 16, rule = B3/S23
b2o2bo2bob2obo$bobobob3obob2o$obo3b2o3bob3o$b2ob3ob3o4bo$2b3ob2o2b2o2b
o$ob3o3b2ob5o$bobo2b4obo3bo$2o4bo5bo2bo$b3ob2o2b5obo$bo4bob2obobobo$4b
obo3b3o$2obob4obo2b2o$o2bo2b7obo$3o3b3o4b3o$2o2b2ob2ob6o$o2b3o2bo3b2o!

[muzik]

Hah, the two pulsar quadrants is 0.5 traffic lights in one phase

[praosylen]

EDIT: Found this weird soup that produces a temporary queen bee shuttle and permanent 2 pulsar quadrants:

Code: Select all

RLE

Wow. Just...wow.

[mniemiec]

One of the 33-bit SLs that showed up on Catagolue suddenly makes the Snark much more likely to construct: ...

If you advance that a bit, the predecessor becomes even simpler. Here it is from 10 gliders. (9 might be possible; many positions of the cleanup glider leave the beehive+blinker combination, and some leave 1-2 other objects. It's possible one might leave nothing, of you try an exhaustive search). As a bonus, all gliders approach from only 2 directions, which might make constructing a 4-snark glider-loop easier.

Code: Select all

x = 184, y = 72, rule = B3/S23
151boo$30boo28boo28boo18b3o17boo19boo17boo$31bo29bo22bo6bo20bo11bo6bo
32bo6bo$oo29bobo27bobo20bo6bobo17bo12bo6bobo30bo6bobo$boo29boo28boo20b
o7boo19b3o8bo7boo30bo7boo$o3boo107bo$4bobo43boo62bo$4bo44bobo$51bo$53b
3o$53bo$54bo29$71boo47bo29bo29bo$71boo17boo24boobobo24boobobo24boobobo
$84bo6bo23bobobobo23bobobobo23bobobobo$84bo6bobo18bobbobobobobo18bobbo
bobobobo18bobbobobobobo$84bo7boo18b4oboo3boo18b4oboo3boo18b4oboo3boo$
116bo29bo29bo$114bobo27bobo27bobo$114boo28boo28boo$77bo$76boo31bo29bo$
76bobo25bo4bo24bo4bo$72b3o28bobo3bo23bobo3bo$74bo28bobo27bobo$73bo30bo
29bo$$135bo$135boo$134bobo12$64boo$65boo$64bo!

[simsim314]

@ mniemiec The big finding is that it's now possible to use in slow salvo construction for self constructing circuitry.

Any idea how to end the snark using SL seeds?

[gmc_nxtman]

Any idea how to end the snark using SL seeds?

This method takes only two synchronised gliders with an edgy block seed:

Code: Select all

x = 14, y = 23, rule = LifeHistory
3.2A$2.B3A$2.3BACA$4B2DABA$B2D2BCDBA$.2DAB2ABA$2.A3B2A$3.3A5.2A$3.2A
5.A2.A$10.A2.A$11.2A$6.2A$7.A4.A$4.3A4.2A$3.A$4.3A$7.A$4.4A$4.A3.2A$
5.3A2.A$7.A.2A$7.A$6.2A!

[simsim314]

This method takes only two synchronised gliders with an edgy block seed

Edgy block is not a seed - it itself requires 3 synchronized gliders.

[BlinkerSpawn]

Found this weird soup that produces a temporary queen bee shuttle and permanent 2 pulsar quadrants:

Code: Select all

x = 16, y = 16, rule = B3/S23
b2o2bo2bob2obo$bobobob3obob2o$obo3b2o3bob3o$b2ob3ob3o4bo$2b3ob2o2b2o2b
o$ob3o3b2ob5o$bobo2b4obo3bo$2o4bo5bo2bo$b3ob2o2b5obo$bo4bob2obobobo$4b
obo3b3o$2obob4obo2b2o$o2bo2b7obo$3o3b3o4b3o$2o2b2ob2ob6o$o2b3o2bo3b2o!

Code: Select all

x = 19, y = 19, rule = B3/S23
2b2o$2b2o2$17b2o$13bo3b2o$12bobo$6bo4bo2bo$5b3o4b2o$5bo2bo$5b3o2$7bo5$
3o$2bo$bo!

[gmc_nxtman]

This method takes only two synchronised gliders with an edgy block seed

Edgy block is not a seed - it itself requires 3 synchronized gliders.

I meant that one could use gencols or similar to find a small glider-triggered constellation that produces a block at the edge of its reaction envelope.

[Extrementhusiast]

Any idea how to end the snark using SL seeds?

This method takes only two synchronised gliders with an edgy block seed:

Code: Select all

RLE

Here's a method that takes two synchronized gliders, period:

Code: Select all

x = 20, y = 13, rule = B3/S23
17bo$12b2ob2o$8bo3b2o2b2o$4b2obobo$3bobobobo$o2bobobobobo$4ob2o3b2o6b
2o$4bo13b2o$2bobo$2b2o6bo$9bobo2b2o$9bobo2bobo$10bo3bo!

Many other things can also supply the dot spark.

[Kazyan]

...as demonstrated here, with the two gliders coming from the same side:

Code: Select all

x = 35, y = 27, rule = B3/S23
12b2o$12b2o2$12b2o$8bo3b2o$4b2obobo$3bobobobo$o2bobobobobo$4ob2o3b2o$
4bo10b2o$2bobo10b2o$2b2o6bo$9bobo$9bobo$10bo16bo$26bo$26b3o2$13b2o$13b
2o2$33b2o$33b2o$24bo$23bobo$23bobo$24bo!

[AbhpzTa]

Here is a 16 glider synthesis for a unnamed largish p3 oscillator ... Can anyone find a way to improve its cleanup?

Nice. Actually, it's only 14 gliders, and cleanup can be done with 3 gliders instead of 4, reducing it to 13. (It might also be possible with 2 if you look hard enough):

Code: Select all

x = 280, y = 71, rule = B3/S23
230bo$69bo135booboo21bo13booboo25booboo$42bo25bo39bo59bo35boboboo19b3o
12boboboo24boboboo$40bobo25b3o11boo23bobo32boo23bobo23boo9bobo26boo9bo
bo27bobo$obo38boo39boo23bobo32boo10boo11bobo23boo8booboboo23boo8boobob
oo23booboboo$boo19bo15boo22bo8b3o28bo5bo44boo7bo5bo35bo4bo34bo4bo24bo
4bo$bo19bobo13bobo21bobo7bo29bobo51bo5bobo40bob3o35bob3o25bob3o$22boo
15bo22boo8bo29boo58boo41bo39bo29bo$b3o146b3o53b3o37b3o27b3o$bo150bo55b
o39bo29bo$bbo148bo18$89bo59bo$89bo59bo$89bo59bo$$45boo$44bobo$46bo$48b
3o$48bo$49bo26$110b3o$112bo$111bo3$119b3o$121bo$120bo!

10 gliders:

Code: Select all

x = 170, y = 201, rule = B3/S23
168bo$167bo$167b3o29$152bo$150b2o$60bo90b2o$58bobo$59b2o20$102bo$101bo
$101b3o$69bo$70bo$68b3o28$70bo$71bo$69b3o30$51b2o21b2o$50bobo20bobo$
52bo22bo2$143b2o$142b2o$144bo72$3o$2bo$bo!