Ski Life (B3-k/S23-i)

[Dylan Chen]

Brief Introduction

B3-k/S23-i is a rule that has 2 transitions from life. Nickname 'Ski Life'.

It got name 'spin-ki' at first, due to the common occurance of a p8 spinner, and the 'ki' indicate the different point to Life.

• This rule have gliders, but no XWSS.

• Most spaceships from life cannot survive in this rule, except Copperhead.

• The rule have nature 3c/21d, c/6d, and c/15.

[Dylan Chen]

This is a thread summarize everything about 'spin-ki'.
Most of the important information would be updated in this post.

Spaceships:
nature occured
searched
constructed
no found

orthogonal: c/2 2c/5 c/3 c/4 c/5 c/6 c/15
diagonal：c/4d c/5d c/6d 3c/21d c/12d

Code: Select all

x = 329, y = 168, rule = B3-k/S23-i
19$280b2o23b2o$279b2obo21bob2o$278bo3b2o19b2o3bo$277b4o3bo17bo3b4o$
279b3ob2o17b2ob3o$277bo4bo2bo15bo2bo4bo$278b6o19b6o$281bo4b3o9b3o4bo$
277b2o2b6o2bo7bo2b6o2b2o$279bo7b2ob2o3b2ob2o7bo$278b2o5b2obo9bob2o5b2o
$284bo7bobo7bo$278bo5b4obo2bobo2bob4o5bo$292bobo$278b4o3bo6bobo6bo3b4o
$280b2o3bo3b3o3b3o3bo3b2o$281bo6bo2bo3bo2bo6bo$279bo27bo$279bo10b2o3b
2o10bo$280bo8b2o5b2o8bo$278b2o9b3o3b3o9b2o$279b2o7b2o2bobo2b2o7b2o2$
279b2o6b4o5b4o6b2o$278bobo5bo2bo7bo2bo5bobo$281bo3b3o11b3o3bo$278bo5bo
17bo5bo$282b2obo15bob2o$285bo15bo$281bo3bo15bo3bo$280b2o3bo15bo3b2o$
279b3o2b3o13b3o2b3o$289b3o3b3o$279bo6bo2bobo3bobo2bo6bo$289bo2bobo2bo$
290b2o3b2o$289bo7bo$288b2o7b2o$288b3o5b3o$290bo5bo$287b2ob2o3b2ob2o$
285b2o3bo5bo3b2o$284bo5bo5bo5bo$283bo2b3o9b3o2bo$282b2o19b2o$282b2ob2o
13b2ob2o2$285bobo11bobo$286b2o11b2o$286b3o9b3o$289b2o5b2o$288bo2bo3bo
2bo$287b2o2bo3bo2b2o$290bo5bo$287b3o2b3o2b3o$287bobo7bobo$288b2o2bobo
2b2o$288b2o2bobo2b2o$289b3o3b3o$290bobo2b2o$116b2o173b3obo$112bob2o2b
2obo26b2o138bobo3b2o$111b2o8b2o21b3ob2ob3o133bob4obo$110b2obobo2bobob
2o19bo10bo132bo4bobobo$108b2ob2o8b2ob2o18b2o6b2o26bob2ob3ob2obo99bo3b
2o$107bo6b6o6bo20b4o28b2o2bobobobo2b2o93b2obobo4b2o$106b2obo2bobo4bobo
2bob2o20b2o28b3obo7bob3o92b2obo8bo$107bobo2bobo4bobo2bobo20b4o28bo3bo
5bo3bo37bobo5bobo44b3o2b2ob2o3b2o$107bo2b2o2bob2obo2b2o2bo16b2obo4bob
2o30b3o41b3o2b2ob2o2b3o46bobo2b2o2b2o$110bobo8bobo19b2o8b2o27b3o3b3o
42bobobobo51bobobobo2bo$107b2obobo8bobob2o15bo2bo6bo2bo22b3o2bo5bo2b3o
40bobo61bo$110bobobo4bobobo23b4o27b3obo7bob3o39b2ob2o50b3o3b3o$110bobo
b2o2b2obobo22b2o2b2o27bob2o7b2obo36b4obobob4o46bobo2bobo$110bobo8bobo
23b4o31bo7bo39bob3o3b3obo50b3o$109b2obobob2obobob2o23b2o31bo9bo39b2o7b
2o52bo$109b2obo8bob2o2$34bo49bo4bo$33b3o47bobo2bobo$31bo51b3o2b3o$31b
3obo46bobo4bobo$61bobo19bo6bo$31b3o27b3o$31bobo26bo$58b2o2bo$59bobo$
58b2o3$291bo3bo2$233bo3bo55bo$114bo2bo28bobobo35bobo$235bo55bo3bo$186b
obo$233bo3bo!

Oscillators:
nature occured in C1
occured in other symmetry(including ikpx2)
searched
no found

period: 2 3 4 5 6 7 8 9 10 11 12 15 20 24 36 40

Code: Select all

x = 349, y = 327, rule = B3-k/S23-i
8bob2o$8b2obo18b2ob2o$12b2o15bobobobo27b2o2bo$13bo15b2o3b2o25b3ob2obo$
12bo15bo7bo23bo6bo$12b2o46bo2b2o2bo$10b2o15bo3bobo3bo21b2obo2bo2bo$11b
o15bo3bobo3bo21bo2bo2bob2o$10bo16bo3bobo3bo22bo2b2o2bo$10b2o19bobo26bo
6bo$8b2o49bob2ob3o$9bo18bo7bo23bo2b2o$8bo19bobo3bobo$8b2o19b2o3b2o25$
6b2obo117b2obo7b2obo67b2o4b2o70b2obo5b2o$6bob2o117bob2o7bob2o18b2o4b2o
41bob4obo70bob2o6bo$4b2o4b2o119b2o3b2o4b2o16bob4obo42b6o75b2o3bo$4bo5b
o20b2o98bo4bo5bo18b6o44b4o76bo4b2o$5bo5bo18bo2bo98bo4bo5bo18b4o126bo$
4b2o4b2o17bo4bo96b2o3b2o4b2o147b2o3b2o$6b2obo18b2ob2ob2o91b2obo5bo5bo
12b5o8b5o30b2o6bo75b2obo6bo$6bob2o19b2o2b2o92bob2o6bo5bo59bobo4bobo74b
ob2o5bo$4b2o4b2o113b2o9b2o4b2o60b3o2bo2bo78b2o3b2o$4bo5bo114bo10bo5bo
61b3o3b2o79bo$5bo5bo114bo10bo5bo11b5o8b5o31b3o85bo3b2o$4b2o4b2o113b2o
9b2o4b2o60b3o84b2o4bo$6b2obo117b2obo7b2obo20b4o37bobo81b2obo5bo$6bob2o
117bob2o7bob2o19b6o36b2o82bob2o5b2o$160bob4obo$160b2o4b2o15$127b2obo6b
2obo$127bob2o6bob2o$2o5b2obo120b2o8b2o$bo5bob2o120bo9bo$o4b2o4b2o119bo
9bo$2o3bo5bo65b2o4b2o46b2o8b2o$6bo5bo43b2o19bob4obo42b2obo6b2obo$2o3b
2o4b2o22b2o3b2o14b2o20b6o43bob2o6bob2o$bo3bo5bo23b2o3b2o14b2o16b2o3b4o
3b2o37b2o8b2o$o5bo5bo22b2o3b2o14b3o15bobo8bobo37bo9bo$2o3b2o4b2o21b3o
3b3o13b3o16b3o6b3o39bo9bo$5bo5bo22b3o3b3o13b2o17b3o6b3o38b2o8b2o$2o4bo
5bo22b2o3b2o14b2o17b3o6b3o40b2obo6b2obo146b2obo6b2obo$bo3b2o4b2o22b2o
3b2o14b2o17b3o6b3o40bob2o6bob2o146bob2o6bob2o$o6b2obo24b2o3b2o32bobo8b
obo203b2o2b2o$2o5bob2o63b2o3b4o3b2o203bo3bo$78b6o208bo3bo$77bob4obo
206b2o2b2o$77b2o4b2o202b2obo6b2obo$287bob2o6bob2o$291b2o8b2o$291bo9bo$
292bo9bo$291b2o8b2o$287b2obo6b2obo$287bob2o6bob2o14$128b2obo4b2o3b2o$
2o4b2obo118bob2o4b2o3b2o$bo4bob2o27bo94b2o$o9b2o23b2obo93bo3b2o3b2o$2o
8bo24bo2bo94bo2bobobobo$11bo23bob4o91b2o4bobo$2o8b2o20b3o93b2obo5b2obo
$bo4b2obo22bo95bob2o9b2o$o5bob2o21bo2bo91b2o14bo$2o2b2o26b3o91bo14bo$
4bo29bo92bo13b2o$2o3bo28bo91b2o14bo144b2obo6b2obo$bo2b2o122b2obo9bo
145bob2o6bob2o$o5b2obo118bob2o9b2o148b2o2b2o$2o4bob2o281bo3bo44bo4b3o$
292bo3bo42bobo6bo$291b2o2b2o41bobo4b3o$287b2obo6b2obo36bobo$287bob2o6b
ob2o37bo5bo$291b2o2b2o4b2o40bobo$291bo3bo5bo40bobo$292bo3bo5bo38bobo$
291b2o2b2o4b2o34bobo2bo$287b2obo6b2obo36bobo$287bob2o6bob2o36bobo$338b
o14$2o3b2o3b2o$bo3b2o3b2o$o$2o3b2o3b2o$5bobobobo$2o5bobo$bo4b2obo$o9b
2o$2o9bo$10bo116b2obo6bob2o$2o8b2o115bob2o6b2obo$bo9bo119b2o2b2o$o9bo
120bo4bo$2o8b2o120bo2bo150b2o3b2o4b2obo$131b2o2b2o149b2o3b2o4bob2o$
127b2obo6bob2o154b2o4b2o$127bob2o6b2obo145b2o3b2o2bo5bo$125b2o14b2o
143bobobobo3bo5bo$125bo16bo145bobo4b2o4b2o$126bo14bo145b2obo4bo5bo$
125b2o14b2o148b2o3bo5bo$127b2obo6bob2o151bo2b2o4b2o$127bob2o6b2obo150b
o3bo5bo$291b2o3bo5bo$292bo2b2o4b2o$291bo5b2obo$291b2o4bob2o14$2o5bob2o
$bo5b2obo$o4b2o$2o4bo$5bo$2o3b2o$bo5bob2o$o6b2obo$2o9b2o$12bo$2o9bo$bo
9b2o$o6bob2o$2o5b2obo2$127b2obo6b2obo$127bob2o6bob2o$131b2o2b2o$131bo
3bo$132bo3bo$131b2o2b2o$127b2obo6b2obo145b2o3b2o4b2obo$127bob2o6bob2o
145b2o3b2o4bob2o$125b2o8b2o4b2o158b2o$125bo9bo5bo144b2o3b2o8bo$126bo9b
o5bo143bobobobo9bo$125b2o8b2o4b2o145bobo10b2o$127b2obo6b2obo146b2obo6b
2obo$127bob2o6bob2o150b2o4bob2o$292bo2b2o$291bo3bo$291b2o3bo$292bo2b2o
$291bo5b2obo$291b2o4bob2o6$2o5b2obo$bo5bob2o$o4b2o$2o3bo39b2o$6bo37bob
2o$2o3b2o37b2ob3o$bo5b2obo36bo2bo$o6bob2o30b2o5b3o$2o3b2o4b2o27bobo$5b
o5bo28b2o$2o4bo5bo28b3o$bo3b2o4b2o29bobo$o6b2obo31bobo$2o5bob2o32b2o
12$286b2o3b2o4b2obo$286b2o3b2o4bob2o$295b2o$127b2obo6b2obo145b2o3b2o2b
o$127bob2o6bob2o145bobobobo3bo$131b2o2b2o4b2o145bobo4b2o$131bo3bo5bo
145b2obo6b2obo$132bo3bo5bo148b2o4bob2o$131b2o2b2o4b2o149bo8b2o$2o3bob
2o118b2obo6b2obo150bo9bo$bo3b2obo118bob2o6bob2o150b2o9bo$o8b2o114b2o
14b2o149bo8b2o$2o8bo114bo15bo149bo5b2obo$9bo116bo15bo148b2o4bob2o$2o7b
2o114b2o14b2o$bo5b2o118b2obo6b2obo$o7bo118bob2o6bob2o$2o5bo$7b2o$2o3b
2o$bo4bo$o4bo$2o3b2o19$47bo3bo$47bo3bo236b2obo4b2o3b2o$2o5b2obo36bo3bo
74b2obo6b2obo148bob2o4b2o3b2o$bo5bob2o36bo3bo74bob2o6bob2o146b2o4b2o$o
4b2o4b2o34bo3bo78b2o2b2o4b2o144bo5bo3b2o3b2o$2o3bo5bo118bo3bo5bo146bo
5bo2bobobobo$6bo5bo118bo3bo5bo144b2o4b2o4bobo$2o3b2o4b2o29bo13bo73b2o
2b2o4b2o146b2obo5b2obo$bo5b2obo30bob4o5b4obo68b2obo4bo5bo147bob2o9b2o$
o6bob2o29bobob3o5b3obobo67bob2o5bo5bo150b2o8bo$2o3b2o4b2o26bobo15bobo
70b2o2b2o4b2o150bo8bo$5bo5bo28bo17bo71bo3bo5bo152bo7b2o$2o4bo5bo27b2o
15b2o72bo3bo5bo150b2o8bo$bo3b2o4b2o27b2o15b2o71b2o2b2o4b2o146b2obo9bo$
o6b2obo29b2o15b2o67b2obo6b2obo148bob2o9b2o$2o5bob2o21b5o25b5o59bob2o6b
ob2o4$32b5o25b5o$40b2o15b2o$40b2o15b2o$40b2o15b2o$40bo17bo$39bobo15bob
o$40bobob3o5b3obobo$41bob4o5b4obo$42bo13bo3$47bo3bo$47bo3bo$47bo3bo$
47bo3bo$47bo3bo!

glider synthesis of c/6d and 3c/7d has been found:

Code: Select all

x = 49, y = 19, rule = B3-k/S23-i
33bobo$3bo30b2o$bobo30bo$2b2o$46bobo$26bo19b2o$24bobo20bo$8b2o15b2o$9b
2o$8bo2$7b2o$bo4bobo$b2o5bo$obo2$41b3o$41bo$42bo!

To do list:

• search meaningful patterns/soups of life under this rule( the ror_stdin_test)

• looking for a tool under Linux that can search oscillators

• keep the 5_glider_stdin_test upload

• search for different spaceship speeds

Links:

• https://catagolue.hatsya.com/census/b3-ks23-i/C1

• toolkit for OCA search that include 5G_stdin and ROR_stdin(Run Life pattern in Other Rules)

Acknowledge

• thank @yujh for search in symmetric symmetry
  thank @goldenratio for the finding of p7 p9 p11 & c/6
  thank @FWKnightship for natural p36

[yujh]

ntzfind is still quite fast:

Code: Select all

C:\Users\Home>ntzfind B3-k/S23-i p5 k1 w8 u m2000
ntzfind 3.0 by "zdr", Matthias Merzenich, Aidan Pierce, and Tomas Rokicki, 24 February 2018
- ntzfind B3-k/S23-i p5 k1 w8 u m2000
Rule: B3-k/S23-i
Period: 5
Offset: 1
Width:  8
Symmetry: odd
Max length: 2000
Stop search if a ship is found.
Starting search

...o.......o...
.o...o...o...o.
.o...o...o...o.
o..oo.o.o.oo..o
......o.o......
......o.o......
..o...o.o...o..
oo.ooo...ooo.oo
...o.......o...
Length: 44
Spaceship found. (1)

Current depth: 2011
Calculations: 19871154
CPU time: 2.906250 seconds
Search terminated: spaceship found.

No, much faster:

Code: Select all

ntzfind B3-k/S23-i p5 k1 w7 g m2000
ntzfind 3.0 by "zdr", Matthias Merzenich, Aidan Pierce, and Tomas Rokicki, 24 February 2018
- ntzfind B3-k/S23-i p5 k1 w7 g m2000
Rule: B3-k/S23-i
Period: 5
Offset: 1
Width:  7
Symmetry: gutter
Max length: 2000
Stop search if a ship is found.
Starting search

...o.......o...
.o...o...o...o.
.o...o...o...o.
o..oo.o.o.oo..o
......o.o......
......o.o......
..o...o.o...o..
oo.ooo...ooo.oo
...o.......o...
Length: 44
Spaceship found. (1)

Current depth: 2011
Calculations: 1415783
CPU time: 0.187500 seconds
Search terminated: spaceship found.

[goldenratio]

I didn't actually do anything to find these, just went into jslife and changed the rule and observed what worked:
p7 (this amusingly works without the eaters in this rule):

Code: Select all

x = 9, y = 9, rule = B3-k/S23-i
bo2b2o2bo$ob2ob4o$bo$bo2b3o$o2bo3bo$2obo2bo$bobobo$bo2bo$2o!

p9:

Code: Select all

x = 11, y = 15, rule = B3-k/S23-i
4b2o$5bo$4bo$3bob3o$3bobo2bo$2obo2b2obo$bobobobobo$bobobobob2o$2bo4bo
2bo$3b2o3bo$5b3o$b3o$bo2b2o$4bobo$5bo!

p11:

Code: Select all

x = 15, y = 14, rule = B3-k/S23-i
7b2o$8bo$6bo$5bob4o$5bobo3bo$3b3o2bob2o$2bo4b2obo$2bob3o3bo$2obo3bobo$
bobobo3bobob2o$o2bob4o2b2obo$2o2bo3bobo$5bo3b2o$4b2o!

p12 (the only one that still works):

Code: Select all

x = 25, y = 23, rule = B3-k/S23-i
8bob2ob2obo$8b2obobob2o2$8b3o3b3o$8bo2bobo2bo$10b2ob2o2$2o3b2o11b2o3b
2o$2o2bo2bob2o3b2obo2bo2b2o$4bobo2b2o3b2o2bobo$5bo13bo2$5bo13bo$4bobo
2b2o3b2o2bobo$2o2bo2bob2o3b2obo2bo2b2o$2o3b2o11b2o3b2o2$10b2ob2o$8bo2b
obo2bo$8b3o3b3o2$8b2obobob2o$8bob2ob2obo!

EDIT: c/6:

Code: Select all

x = 17, y = 48, rule = B3-k/S23-i
8bo$3b2o3bo3b2o$2bo2b2obob2o2bo$2b2o9b2o$3bobo5bobo$4b2o5b2o$3bo2bo3b
o2bo3$4bo7bo$4bo7bo$5bob3obo$7bobo$4bo7bo$3b2o7b2o$4bobo3bobo$4b3o3b3o
$5bobobobo$5bobobobo$2b3o2bobo2b3o$2bobo7bobo$2bob2ob3ob2obo$2bo11bo$
b2obo2bobo2bob2o$b4o2bobo2b4o$4b2o5b2o$4b2o5b2o$3bo2bo3bo2bo$3o3bo3bo
3b3o$6bo3bo$2o5bobo5b2o$3b3obobob3o$2bo4bobo4bo$7bobo$4b2obobob2o$b2o
2b2o3b2o2b2o$b2o11b2o$5bo5bo$5b2o3b2o$7bobo$4b2obobob2o$7bobo$2bo2bob
obobo2bo$bo3bobobobo3bo$2bob4ob4obo$5bo5bo$3bo9bo$2b3o7b3o!

[FWKnightship]

Natural p36:

Code: Select all

x = 12, y = 12, rule = B3-k/S23-i
3bo4b3o$2bobo6bo$bobo4b3o$obo$bo5bo$6bobo$5bobo$4bobo$obo2bo$obo$obo$
bo!

Code: Select all

x = 31, y = 31, rule = B3-k/S23-i
5bob4obo2bo2bob4obo$bob4o2b2ob3ob3ob2o2b4obo$3b2o2b2o2bobo3bobo2b2o2b
2o$b2obo4b2o2bo3bo2b2o4bob2o$b3o2bo2bo2bo2bo2bo2bo2bo2b3o$2o5b4ob7ob4o
5b2o$bo2bobob2o2b2o3b2o2b2obobo2bo$obo2bo3b2obobobobob2o3bo2bobo$obo2b
2ob2o2bo2bo2bo2b2ob2o2bobo$2ob25ob2o$2obobobob13obobobob2o$2bo6b4o5b4o
6bo$2o2b9obobob9o2b2o$b3ob2o2b2o4bo4b2o2b2ob3o$bo3bobob2obob3obob2obob
o3bo$o3b2o2b3o2b2ob2o2b3o2b2o3bo$bo3bobob2obob3obob2obobo3bo$b3ob2o2b
2o4bo4b2o2b2ob3o$2o2b9obobob9o2b2o$2bo6b4o5b4o6bo$2obobobob13obobobob
2o$2ob25ob2o$obo2b2ob2o2bo2bo2bo2b2ob2o2bobo$obo2bo3b2obobobobob2o3bo
2bobo$bo2bobob2o2b2o3b2o2b2obobo2bo$2o5b4ob7ob4o5b2o$b3o2bo2bo2bo2bo2b
o2bo2bo2b3o$b2obo4b2o2bo3bo2b2o4bob2o$3b2o2b2o2bobo3bobo2b2o2b2o$bob4o
2b2ob3ob3ob2o2b4obo$5bob4obo2bo2bob4obo!

[Dylan Chen]

Three days exploring to a new rule

step1:

• Golly randomly fill. Checking the involvement of soups

step2:

• Select one rule that attracts you

• Apgsearch and upload some hauls

step3:

• qfind/ikpx2 search for spaceships

• JLS or LSS search for oscillators

Tools you need

• Computer. installed with Golly

• WSL. (strongly recommand for win10 users)

• Cloud instance. For high durance and high performance computing

Software the community provide

• Scripts

• Gitlab/Github

• Make no hesitate to ask in forum or the discord channel

Assume there is a museum
you can take away exhibits freely
as the replica is identical to the original

Assume there is a dataset
with 2000+TB of size
which has computed out a 6.3MB summary

Assume there is a virtual world
could be explore via computer /even hand
and won't be interfered by human will


That's another kind of Life







Summary
All neccessary posts(of mine) on the forum

For those who may get interest on Cloud based APGsearch, though not familiar with Linux command line. I'd like to share my note about how to do APGsearch on a cloud Linux server. Hoping it would be helpful to you.

apgsearch v5.0


Re: A Broader Audience for Cellular Automata

Surjective：Make sure there is no one left

Further statistics of Catagolue

Ski Life (B3-k/S23-i)