## Oscillator Discussion Thread

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.
JP21
Posts: 1000
Joined: October 26th, 2019, 5:39 am
Location: PH

### Re: Oscillator Discussion Thread

Gustone wrote:
December 25th, 2019, 1:46 pm
Known?

Code: Select all

x = 10, y = 11, rule = B3/S23
6b2o$6b2o2$4b4o$3bo3bo$2bobo$2bobo$3bo2b2o$3o3bobo$o7bo$8b2o!  Known? Code: Select all x = 13, y = 14, rule = B3/S23 7bo$5b3o$4bo$4b6o$10bo$4b2o2b2obo$2obobo3bobo$bobo3bobob2o$bob2o2b2o$
2bo$3b6o$8bo$5b3o$5bo!

A 13 year old guy that have useless discoveries about life and other rules.

Code: Select all

x = 13, y = 20, rule = B3/S23
11b2o$11b2o4$8b2o$8b2o2$2o$2o3$3b2o$3b2o2$11b2o$10b2o$12bo$3b2o$3b2o!


Layz Boi
Posts: 96
Joined: October 25th, 2018, 3:57 pm

### Re: Oscillator Discussion Thread

JP21 wrote:
January 30th, 2020, 11:08 am
dvgrn wrote:
January 30th, 2020, 11:00 am
JP21 wrote:
January 30th, 2020, 10:45 am

Code: Select all

x = 24, y = 24, rule = B3/S23
6b2o8b2o$6b2o8b2o$10bo2bo$6b5o2b5o$5bo8bo3bo$4bob2o7b3obo$2obobo2b2ob
2ob2o2bobob2o$2obobo2bo3b2o4bobob2o$3bo2b2obo3b2o2b2obo$3bo2bobob3o2bo bob2o$2b2o5bobo3b2o3b2o$6bo2b2o3bob2o$6b2obo3b2o2bo$2b2o3b2o3bobo5b2o$
3b2obobo2b3obobo2bo$3bob2o2b2o3bob2o2bo$2obobo4b2o3bo2bobob2o$2obobo2b 2ob2ob2o2bobob2o$4bob3o7b2obo$5bo3bo8bo$6b5o2b5o$10bo2bo$6b2o8b2o$6b2o 8b2o! Is the goal to find a stabilization for the 6x6 p2 area in the center? Have you set up the problem in JLS and run a search? Actually, it is just the 4x4 area that I tried to stabilize but the 6x6 shown is the only way. I don't have any programs for oscillators. I'm lazy and most programs doesn't even work because most of them are for macs and I have Windows 10. Here ya' go bud. Code: Select all x = 18, y = 18, rule = B3/S23 3bo10bo$2bobo8bobo$bo2bo8b2obo$o4b2ob2ob2o2bobo$b2o4b2o3bo2b2o$3bo2b2o
3bob2o$3bobo2b3obobo$4b2o3bobo$3b2obo3b2o2bo$3bo2b2o3bob2o$6bobo3b2o$
3bobob3o2bobo$3b2obo3b2o2bo$b2o2bo3b2o4b2o$obo2b2ob2ob2o4bo$bob2o8bo2b
o$2bobo8bobo$3bo10bo!

JP21
Posts: 1000
Joined: October 26th, 2019, 5:39 am
Location: PH

### Re: Oscillator Discussion Thread

Layz Boi wrote:
February 1st, 2020, 1:49 pm
JP21 wrote:
January 30th, 2020, 11:08 am
dvgrn wrote:
January 30th, 2020, 11:00 am

Is the goal to find a stabilization for the 6x6 p2 area in the center? Have you set up the problem in JLS and run a search?
Actually, it is just the 4x4 area that I tried to stabilize but the 6x6 shown is the only way. I don't have any programs for oscillators. I'm lazy and most programs doesn't even work because most of them are for macs and I have Windows 10.
Here ya' go bud.

Code: Select all

x = 18, y = 18, rule = B3/S23
3bo10bo$2bobo8bobo$bo2bo8b2obo$o4b2ob2ob2o2bobo$b2o4b2o3bo2b2o$3bo2b2o 3bob2o$3bobo2b3obobo$4b2o3bobo$3b2obo3b2o2bo$3bo2b2o3bob2o$6bobo3b2o$3bobob3o2bobo$3b2obo3b2o2bo$b2o2bo3b2o4b2o$obo2b2ob2ob2o4bo$bob2o8bo2b o$2bobo8bobo$3bo10bo! OMG! Thank you. I honestly thought the answer would be a huge one, but it isn't. I need to actually learn p2 billiard table oscillators before continuing. A 13 year old guy that have useless discoveries about life and other rules. Code: Select all x = 13, y = 20, rule = B3/S23 11b2o$11b2o4$8b2o$8b2o2$2o$2o3$3b2o$3b2o2$11b2o$10b2o$12bo$3b2o$3b2o!  Bullet51 Posts: 556 Joined: July 21st, 2014, 4:35 am ### Re: Oscillator Discussion Thread Sokwe wrote: January 13th, 2020, 1:17 am Bullet51 wrote: January 13th, 2020, 12:04 am p4 partial I assume you mean that it's a partial with strict volatility equal to 1. How did you find it? I believe it's the time to publicize my tools. It's just hacked lifesrc 3.8, namely, add these lines at the beginning of the consistify10 function (line 705 in search.c): Code: Select all static Status consistify10(Cell * cell) { //add these lines State st0 = findCell(cell->row, cell->col, 0) -> state; State st1 = findCell(cell->row, cell->col, 1) -> state; State st2 = findCell(cell->row, cell->col, 2) -> state; State st3 = findCell(cell->row, cell->col, 3) -> state; //Get the states of a cell. Possibly inefficient if (st0 == ON && st1 == OFF && st2 == ON && st3 == OFF) //this cell oscillates in period 2 return ERROR; if (st0 == OFF && st1 == ON && st2 == OFF && st3 == ON ) //this cell oscillates in period 2 return ERROR; if (st0 == ON && st1 == ON && st2 == ON && st3 == ON) //this cell is stable return ERROR; //end of hack  My searches are conducted in terms of width, the same notion of that in gfind. The following returned negative results: • asymmetric width 13 (-a in gfind) • odd width 21 (-u in gfind) • even width 22 (-v in gfind) • gutter width 23 (-w in gfind) The longest partial I've obtained is in asymmetric width 13: Code: Select all x = 30, y = 13, rule = B3/S23 3bo13bobo$3b2o13bo$bo11b3o2b3o$o3bo5bo2b2o2bo2bo$bobobobobobo4b2o$6bo
9b2o2bo$bobobobob2o4bobo$o3bo5bo5bo2b2o$bo9b4o2b2o$3b2o7bobobobobo$3bo 15bo$19b2o!
I've also tried odd width 23 and even width 24.
Assume the search space is an mxn rectangle, where m=23 (for odd) or m=24 (for even). In lifesrc, the commands are

Code: Select all

lifesrcdumb -r23 -c36 -g4 -sr -og
or

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lifesrcdumb -r24 -c36 -g4 -sr -og
.
A "x 1 31 m 36" command in the runtime is used to make sure that negative results returned from the program are reliable.

The searches are organized in a way featuring symmetry breaking: consider the highest cell which is alive in some generation in the first column. There're only three possibilities of the cell up to time-shifting: alive in 3 generations, alive in 2 generations and alive in 1 generation. So I divided the search space according to where is the highest cell and how it oscillates. This picks out one element out of four in each isomorphism class(two patterns are in the same isomorphism class if one if a time-shift of the other).

The finished partial results are as following. All results are negative.

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23 ODD RESULTS
FIRST ALIVE CELL AT (1,1)		NEGATIVE
FIRST ALIVE CELL AT (2,1)		NEGATIVE
FIRST ALIVE CELL AT (3,1)		NEGATIVE
FIRST ALIVE CELL AT (4,1)		NEGATIVE IF ALIVE IN 1 GENERATION OR 3 GENERATIONS
FIRST ALIVE CELL AT (9,1)		NEGATIVE
FIRST ALIVE CELL AT (10,1)		NEGATIVE
FIRST ALIVE CELL AT (11,1)		NEGATIVE
FIRST ALIVE CELL AT (12,1)		NEGATIVE
OTHERS UNKNOWN


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24 EVEN RESULTS
FIRST ALIVE CELL AT (4,1)		NEGATIVE IF ALIVE IN 2 GENERATIONS
FIRST ALIVE CELL AT (7,1)		NEGATIVE IF ALIVE IN 2 GENERATIONS
FIRST ALIVE CELL AT (11,1)		NEGATIVE
FIRST ALIVE CELL AT (12,1)		NEGATIVE

The partition of the search space made it particularly suitable for distributed hunting, like Sokwe's width 19 c/8 spaceship search.
I've not tried glide symmetry (-g in gfind) and diagonal symmetries.
lifesrc-3.8.zip
Contains the executable of the hacked program
Still drifting.

Hdjensofjfnen
Posts: 1516
Joined: March 15th, 2016, 6:41 pm
Location: r cis θ

### Re: Oscillator Discussion Thread

JP21 wrote:
February 1st, 2020, 12:16 pm
Known?

Code: Select all

x = 13, y = 14, rule = B3/S23
7bo$5b3o$4bo$4b6o$10bo$4b2o2b2obo$2obobo3bobo$bobo3bobob2o$bob2o2b2o$2bo$3b6o$8bo$5b3o$5bo!  This variation's nearly a p6, but doesn't quite get the right configuration of cells: Code: Select all x = 13, y = 14, rule = B3/S23 7b2o$7bobob2o$4bo4bobo$4b5o3bo$9b3o$4b2o2bo$2obobo3bo$bobo3bobo$bob2o 2b2o$2bo$3b6o$8bo$5b3o$5bo!
[[ STOP 6 ]]

"A man said to the universe:
'Sir, I exist!'
'However,' replied the universe,
'The fact has not created in me
A sense of obligation.'" -Stephen Crane

Code: Select all

x = 7, y = 5, rule = B3/S2-i3-y4i
4b3o$6bo$o3b3o$2o$bo!


dani
Posts: 1002
Joined: October 27th, 2017, 3:43 pm
Location: New Jersey, USA
Contact:

### Re: Oscillator Discussion Thread

Probably already known p22 engine, just needs sparks:

Code: Select all

#C [[ LOOP 22 ]]
x = 6, y = 9, rule = B3/S23
2bo2$2b2o$b4o$2o2b2o$b4o$2b2o2$2bo!

she/her
moose#0915

Kazyan
Posts: 959
Joined: February 6th, 2014, 11:02 pm

### Re: Oscillator Discussion Thread

A for Awesome noticed that rliston's G1 searching turned up something new today: this new p16 oscillator.

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7bo8b2o$2bo9b3o2bo11b2o16b2o$ob2obob2o6b2o13bo7b2o7bo$ob4o5bo18bobo3bo 4bo3bobo$11bo19b2o2bo6bo2b2o$3b3o9b2o17bo8bo$4b5o3b3o2bo16bo8bo$7bo8b 2o16bo8bo$31b2o2bo6bo2b2o$30bobo3bo4bo3bobo$30bo7b2o7bo$29b2o16b2o!  A 13 year old guy that have useless discoveries about life and other rules. Code: Select all x = 13, y = 20, rule = B3/S23 11b2o$11b2o4$8b2o$8b2o2$2o$2o3$3b2o$3b2o2$11b2o$10b2o$12bo$3b2o$3b2o!  dvgrn Moderator Posts: 6726 Joined: May 17th, 2009, 11:00 pm Location: Madison, WI Contact: ### Re: Oscillator Discussion Thread The soup's method of producing Rob's p16 is interesting. Maybe there's an angle there? The left side is certainly easy enough: Code: Select all x = 26, y = 19, rule = LifeHistory$12.D.D$12.2D$13.D2$5.D.D$6.2D6.3A$6.D$7.2AB2A$2.2D3.A2BA6.3A$3.2D2.B
2A5.A4.3A$2.D11.3A6.A$20.2A.A$20.2A.2A$20.2A.2A$19.2A2.A$19.3A.A!

Posts: 1964
Joined: November 8th, 2014, 8:48 pm
Location: Getting a snacker from R-Bee's

### Re: Oscillator Discussion Thread

A for awesome wrote:
February 10th, 2020, 3:33 pm

This suggests a maybe tractable route, although I don't know that the grin (or equivalent) and the spark can be inserted in such close proximity:

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x = 13, y = 15, rule = B3/S23
2b2o5bo$10bo$2ob3o4bo$2b2o5bo$2bo8bo$5b2o3bo$5bobobo$3bobob2o$4bo$10b o$9b3o$9b3o$8b2ob2o$9b3o$9b3o!
Another generation backwards:

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x = 21, y = 15, rule = B3/S23
b2o$b3o6b3o$6b6o$o2bob6o$3bo$7b2o3b3obo$4bo2bobobob3o$5bobob2o4b3o$6bo
10b3o$18b2o$11b3o4bobo$10bo3bo2$10b2ob2o$12bo!  Another: Code: Select all x = 29, y = 14, rule = B3/S23 9bo7b2o2bo$5bo3b4o7bo$6b2o11bo$5b2o4b8o$11b2o$15b2o3b2o3bo$15bobobobob 2o$9bob3obob2o5b2o$3o7b3obo$2bo5b3o15b3o$bo18bo5bo$18b2ob2o4bo$18b2ob 2o$19b3o!

Suggestion for the core:

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x = 16, y = 11, rule = B3/S23
14b2o$13bobo$o2b2o7bo$4o7bo$5bo2bobo$2b8o$o2bo$2o4b2o3b2o$6bobobobo$3b 2obob2o$3bobo!

LifeWiki: Like Wikipedia but with more spaceships. [citation needed]

Kazyan
Posts: 959
Joined: February 6th, 2014, 11:02 pm

### Re: Oscillator Discussion Thread

17 gliders:

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x = 157, y = 35, rule = B3/S23
138bo$136bobo$137b2o2$124bo$125b2o13bo$14bo109b2o12b2o$13bo122bo2b2o
14bo$13b3o118bobo16b2o$135b2o17b2o3$82bo$6bo73bobo$obo2bo75b2o3bo$b2o
2b3o76b2o47b2o$bo83b2o46bobo$135bo$43bo91b2o$44bo6b2o38b2o48b2o$42b3o 5bobo37bobo30b2o15bobo$47bobo34b2obobo34b2o8b2obobo$47b2o35b2ob2o34bo 10b2ob2o$39b3o110bo$7b2o32bo109b2o$6b2o32bo110bobo$8bo3$144b3o$144bo$
138b2o5bo$137bobo$139bo!
Tanner Jacobi
Coldlander, a novel, available in paperback and as an ebook.

Hunting
Posts: 3014
Joined: September 11th, 2017, 2:54 am

### Re: Oscillator Discussion Thread

Moosey wrote:
February 10th, 2020, 5:58 pm
That osc scares me; it looks so alien compared to others, like it came from an OCA

But congrats to Rliston! It's really cool to see another new osc, especially a weird-looking one. Has anyone written a wiki page? (Edit: Yes, Rob's p16)
I agree, it's extremely surprising to see such a small oscillator. When I saw it, I'm pretty sure that's a troll... Congrats!
MLP will live on forever, so does John Horton Conway.
Moosey wrote:
February 5th, 2019, 7:51 pm
“New knightship tagalong!”
“Quick, hide it!”
My TODO list

LeapLife - DirtyLife - LispLife

I could make a rule in ten seconds flat

Freywa
Posts: 635
Joined: June 23rd, 2011, 3:20 am
Location: Singapore
Contact:

### Re: Oscillator Discussion Thread

The new p16 is interesting in that it combines a caterer-like spark and a thumb spark into one:

Code: Select all

x = 25, y = 12, rule = LifeHistory
2.C14.D$.BA2B11.BA2B$.2BA2BA9.ABA3B$DBA2BABA7.C2BA4B$.2B5AB7.7BA$.2B 2A5B6.A4BABAB$.2BAB3A2B6.B2ABA3BA$.4BAB2A7.BA2BAB2A$2BA5B7.2BAB2A2B$. BA4B9.2A4B$.BA2B11.4B$2.B14.B! As to whether it will have any use like a Rich's p16, that remains to be seen. Princess of Science, Parcly Taxel GUYTU6J Posts: 1070 Joined: August 5th, 2016, 10:27 am Location: 中国 ### Re: Oscillator Discussion Thread Belated congratulations! We'd have found it earlier if it were not that 8×9 bounding box is too large for exhaustive computer search. Freywa wrote: February 11th, 2020, 1:44 am The new p16 is interesting in that it combines a caterer-like spark and a thumb spark into one: Code: Select all x = 25, y = 12, rule = LifeHistory 2.C14.D$.BA2B11.BA2B$.2BA2BA9.ABA3B$DBA2BABA7.C2BA4B$.2B5AB7.7BA$.2B
2A5B6.A4BABAB$.2BAB3A2B6.B2ABA3BA$.4BAB2A7.BA2BAB2A$2BA5B7.2BAB2A2B$.
BA4B9.2A4B$.BA2B11.4B$2.B14.B!
As to whether it will have any use like a Rich's p16, that remains to be seen.
Maybe it can filter some xWSS streams?
Lifewiki: User:GUYTU6J
---
Someone please find a use for this:

Code: Select all

x = 9, y = 7, rule = B3/S23
6bo$6bobo$5bo2bo$b2o3b2o$o2bo$bobo$2bo!
#C [[ COLOR BACKGROUND 255 200 82 COLOR ALIVE 81 143 51 ]]


JP21
Posts: 1000
Joined: October 26th, 2019, 5:39 am
Location: PH

### Re: Oscillator Discussion Thread

Freywa wrote:
February 11th, 2020, 1:44 am
The new p16 is interesting in that it combines a caterer-like spark and a thumb spark into one:

Code: Select all

x = 25, y = 12, rule = LifeHistory
2.C14.D$.BA2B11.BA2B$.2BA2BA9.ABA3B$DBA2BABA7.C2BA4B$.2B5AB7.7BA$.2B 2A5B6.A4BABAB$.2BAB3A2B6.B2ABA3BA$.4BAB2A7.BA2BAB2A$2BA5B7.2BAB2A2B$. BA4B9.2A4B$.BA2B11.4B$2.B14.B! As to whether it will have any use like a Rich's p16, that remains to be seen. JP21 wrote: February 10th, 2020, 7:13 pm Ian07 wrote: February 10th, 2020, 5:17 pm Sokwe wrote: February 10th, 2020, 3:29 pm It has a few weak sparks, so it will probably give some smaller LCM oscillators, although I'm not sure if it will be useful beyond that. Unfortunately, I wasn't able to reduce any other low periods using this, as the spark is too close to avoid destroying the oscillator. p240 can be easily done using a pentadecathlon, but it looks like the p48, p80, p96, and p144 pages won't need updating unless I'm missing something. Either way, massive congrats to Rob Liston! You are definitely missing something. Code: Select all x = 49, y = 22, rule = B3/S23 39bo$38bobo$39bo$34bo$32bob2obob2o$32bob4o2$35b3o$7bo28b5o$6bobo30bo$
7bo8b2o$2bo9b3o2bo11b2o16b2o$ob2obob2o6b2o13bo7b2o7bo$ob4o5bo18bobo3bo 4bo3bobo$11bo19b2o2bo6bo2b2o$3b3o9b2o17bo8bo$4b5o3b3o2bo16bo8bo$7bo8b 2o16bo8bo$31b2o2bo6bo2b2o$30bobo3bo4bo3bobo$30bo7b2o7bo$29b2o16b2o!  A 13 year old guy that have useless discoveries about life and other rules. Code: Select all x = 13, y = 20, rule = B3/S23 11b2o$11b2o4$8b2o$8b2o2$2o$2o3$3b2o$3b2o2$11b2o$10b2o$12bo$3b2o$3b2o!  Entity Valkyrie 2 Posts: 538 Joined: February 26th, 2019, 7:13 pm Location: Hijuatl, Zumaland Contact: ### Re: Oscillator Discussion Thread I guess this counts as a new P48: Code: Select all x = 17, y = 15, rule = B3/S23 14b2o$11bo2b2o$10bo4bo$10bo4bo$15bo$9b2obobo$9b2ob2o$2b2o$4bob2o6b3o$o
2bo2b2o$obo$bo2$b2o$b2o!

The ENEERG-y of the EVAD is watching.
The 70th NAI-ve guy is watching.