Missing Object in Catalog

[Extrementhusiast]

I have found a still life that is seemingly not in the catalog:

Code: Select all

x = 8, y = 8, rule = B3/S23
2bo$2b3o$2o3bo$bo2bobo$bobo2bo$2bo3b2o$3b3o$5bo!

I actually searched through the whole twenty-bit still life catalog at pentadecathlon.com, and didn't find it.

[Mats]

Here it is:
http://pentadecathlon.com/objects/objec ... =20.111865

[Extrementhusiast]

I must have just missed it, then. Is there any way to synthesize it from 12.121 (the one-sided version)?

[alex79]

The one-sided object is a http://conwaylife.com/wiki/Cis_fuse_with_two_tails and the two sided is the siamese version, like the http://conwaylife.com/wiki/Loaf_siamese_loafis of loaves.

[mniemiec]

I must have just missed it, then. Is there any way to synthesize it from 12.121 (the one-sided version)?

I don't have a synthesis for this yet. The usual means of adding tails doesn't work; this is the closest I could get using two copies of the least-obtrusive tail-adding mechanism I know. It's close, but needs a bit of tweaking:

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x = 28, y = 28, rule = B3/S23
6bo$4bobo$5b2o8bo$15bobo$bo13b2o8bobo$2bo16bobo3b2o$3o6b2o8b2o5bo$8bo
2bo8bo$7bob2o11bo$6bobo12b2o$6bobo4bo7bobo$7bo4bobo$11bo2bo$10bo3b2o$
11b3o$2b3o8bo$4bo$3bo2$5b2o$6b2o$5bo3b2o$8b2o$10bo2$4b2o$5b2o$4bo!

Another more promising method would be to add one tail, then use a mechanism that adds a tail to attach to something else that's already there. I remember recently working with something like that; I'll have to find it again to see if it can work here.

[Extrementhusiast]

I don't have a synthesis for this yet. The usual means of adding tails doesn't work; this is the closest I could get using two copies of the least-obtrusive tail-adding mechanism I know. It's close, but needs a bit of tweaking:

Code: Select all

x = 28, y = 28, rule = B3/S23
6bo$4bobo$5b2o8bo$15bobo$bo13b2o8bobo$2bo16bobo3b2o$3o6b2o8b2o5bo$8bo
2bo8bo$7bob2o11bo$6bobo12b2o$6bobo4bo7bobo$7bo4bobo$11bo2bo$10bo3b2o$
11b3o$2b3o8bo$4bo$3bo2$5b2o$6b2o$5bo3b2o$8b2o$10bo2$4b2o$5b2o$4bo!

Gen. 13 of that looks like an hourglass with two tails!

[mniemiec]

Gen. 13 of that looks like an hourglass with two tails!

Exactly! That was the point! The two tail-adding mechanisms both sort-of work; unfortunately, they interact and leave a bit of toxic debris attached to the desired object. I tried a few obvious tricks to eliminate it, but they either formed the tails incorrectly, or always left the attached debris. It's possible that some less obvious way of smashing the two beehives might work, or else using something sightly different than two beehives.

Oops - never mind. I didn't quite parse what you said, which is quite different than what I thought you said.

Interesting. Perhaps some perturbation of the above might yield the hourglass with two tails. (Then again, if we figure out the way to add "two joined tails" to something, that can work, both for the object in question, and also for the hourglass).

[mniemiec]

I finally worked out a synthesis. I wasn't actually working on this, but I got side-tracked when I was looking at reducing the LWSS-emulator synthesis. I took a look at the boat-to-integral conversion mechanisms, and two of them together got very close to what was needed. The last step here can also be used on an hourglass.

Code: Select all

#C 20.55084 (fuse w/4 tails) from 21 gliders
x = 158, y = 25, rule = B3/S23
22bo$20boo114bobo$21boo114boo$137bo$$7bobo132bo$8boo132bobo$8bo129bo3b
oo$139boo$5boo25bo19bo19bo19bo19bo19bo5boo12bo$5bobo24b3o17b3o17b3o17b
3o17b3o17b3o17b3o$bo3bo24boo3bo14boo3bo14boo3bo14boo3bo14boo3bo14boo3b
o14boo3bo$boo28bobbo16bobbo16bobbo16bobbo16bobbo16bobbo9bo6bobbobo$obo
14bo13bobo17bobo17bobo17bobo17bobo3bo13bobo3bo6bobo4bobobbo$15bobo14bo
19bo19bo3boo14bo3boo14bo3bobo13bo3bobo5boo6bo3boo$16boo38bobo16bobbo
16bobbo16bobo4bo12bobo15b3o$12boo42boo17bobbo16bobbo15bobo6boo9bobo18b
o$11bobo43bo18boo18boo17bo6boo4bobo4bo$13bo88bobo24boo$bbo54boo43boo
25bo11boo$bboo10boo41bobo43bo37bobo$bobo10bobo40bo68b3o12bo$14bo86boo
25bo5boo$100boo25bo5bobo$102bo32bo!

[Rhombic]

Heh you can chain it!

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x = 38, y = 38, rule = B3/S23
2bo$2b3o$2o3bo$bo2bobo$bobo2bo$2bo3b2o$3b3o2bo$5bo2b3o$6b2o3bo$7bo2bob
o$7bobo2bo$8bo3b2o$9b3o2bo$11bo2b3o$12b2o3bo$13bo2bobo$13bobo2bo$14bo
3b2o$15b3o2bo$17bo2b3o$18b2o3bo$19bo2bobo$19bobo2bo$20bo3b2o$21b3o2bo$
23bo2b3o$24b2o3bo$25bo2bobo$25bobo2bo$26bo3b2o$27b3o2bo$29bo2b3o$30b2o
3bo$31bo2bobo$31bobo2bo$32bo3b2o$33b3o$35bo!

[knightlife]

You can also branch and cross it:

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x = 68, y = 68, rule = B3/S23
2bo26bo$2b3o22b3o$2o3bo20bo3b2o$bo2bobo18bobo2bo$bobo2bo18bo2bobo$2bo
3b2o16b2o3bo$3b3o2bo14bo2b3o$5bo2b3o10b3o2bo$6b2o3bo8bo3b2o$7bo2bobo6b
obo2bo$7bobo2bo6bo2bobo$8bo3b2o4b2o3bo$9b3o2bo2bo2b3o$11bo2b4o2bo$12b
2o4b2o$13bob2obo$13bo2bobo$14bo3b2o$15b3o2bo$17bo2b3o$18b2o3bo$19bo2bo
bo$19bobo2bo$20bo3b2o$21b3o2bo$23bo2b3o$24b2o3bo$25bo2bobo$25bobo2bo$
26bo3b2o$27b3o2bo26bo$29bo2b3o22b3o$30b2o3bo20bo3b2o$31bo2bobo18bobo2b
o$31bobo2bo18bo2bobo$32bo3b2o16b2o3bo$33b3o2bo14bo2b3o$35bo2b3o10b3o2b
o$36b2o3bo8bo3b2o$37bo2bobo6bobo2bo$37bobo2bo6bo2bobo$38bo3b2o4b2o3bo$
39b3o2bo2bo2b3o$41bo2b4o2bo$42b2o4b2o$43bob2obo$43bob2obo$42b2o4b2o$
41bo2b4o2bo$39b3o2bo2bo2b3o$38bo3b2o4b2o3bo$37bobo2bo6bo2bobo$37bo2bob
o6bobo2bo$36b2o3bo8bo3b2o$35bo2b3o10b3o2bo$33b3o2bo14bo2b3o$32bo3b2o
16b2o3bo$31bobo2bo18bo2bobo$31bo2bobo18bobo2bo$30b2o3bo20bo3b2o$32b3o
22b3o2bo$32bo26bo2b3o$60b2o3bo$61bo2bobo$61bobo2bo$62bo3b2o$63b3o$65bo
!

[towerator]

Trivia: Desipte the object being connected, a fuse almost always fails to work.
I found only one fuse.