It was devised by Brian Prentice in 2014:
https://conwaylife.com/forums/viewtopic ... 960#p12960
BSFKL rules are not yet natively supported in LifeViewer or Golly, so here is the rule table:
Code: Select all
@RULE B1S345678F2378K468L03568
@TREE
num_states=3
num_neighbors=8
num_nodes=107
1 0 2 0
1 0 2 2
2 0 1 0
2 1 1 1
3 2 3 2
1 0 1 0
2 1 5 1
1 1 2 2
2 1 1 7
3 3 6 8
2 0 7 0
3 2 8 10
4 4 9 11
1 0 1 2
2 5 13 5
3 6 14 6
2 7 1 7
3 8 6 16
4 9 15 17
1 0 0 0
2 0 7 19
3 10 16 20
4 11 17 21
5 12 18 22
2 13 5 13
3 14 24 14
4 15 25 15
1 0 0 2
2 7 1 27
3 16 6 28
4 17 15 29
5 18 26 30
2 19 27 0
3 20 28 32
4 21 29 33
5 22 30 34
6 23 31 35
2 5 5 5
3 24 37 24
4 25 38 25
2 1 5 27
3 6 14 40
4 15 25 41
5 26 39 42
2 27 27 1
3 28 40 44
4 29 41 45
5 30 42 46
6 31 43 47
2 0 1 19
3 32 44 49
4 33 45 50
5 34 46 51
6 35 47 52
7 36 48 53
3 37 14 37
4 38 55 38
2 5 13 19
3 14 24 57
4 25 38 58
5 39 56 59
2 27 19 1
3 40 57 61
4 41 58 62
5 42 59 63
6 43 60 64
2 1 1 27
3 44 61 66
4 45 62 67
5 46 63 68
6 47 64 69
7 48 65 70
3 49 66 32
4 50 67 72
5 51 68 73
6 52 69 74
7 53 70 75
8 54 71 76
4 55 25 55
2 13 5 27
3 24 37 79
4 38 55 80
5 56 78 81
2 19 27 5
3 57 79 83
4 58 80 84
5 59 81 85
6 60 82 86
3 61 83 40
4 62 84 88
5 63 85 89
6 64 86 90
7 65 87 91
2 27 27 7
3 66 40 93
4 67 88 94
5 68 89 95
6 69 90 96
7 70 91 97
8 71 92 98
3 32 93 20
4 72 94 100
5 73 95 101
6 74 96 102
7 75 97 103
8 76 98 104
9 77 99 105Behavior
Code: Select all
#R B1S345678F2378K468L03568
!
[[ RANDOMIZE ]]Still lifes
Still lifes are abundant and come in many shapes and sizes, but they all have the same general structure. They consist of a stable live "core" with destructive cells attached to them. The cores are usually made from rectangles or cross motifs, sometimes fused together. In other cases, they're just blobs.
Code: Select all
x = 21, y = 11, rule = B1S345678F2378K468L03568
.A5.A4.2A4.3A$3A3.3A3.3A3.3A$.A5.2A4.2A4.A6$2A3.3A3.4A3.3A$2A3.3A3.4A
3.3A$18.3A!
Code: Select all
x = 32, y = 32, rule = B1S345678F2378K468L03568:T32,32
32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A
$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A$32A!
Code: Select all
x = 4, y = 4, rule = B1S345678F2378K468L03568
B2.B$.2A$.2A$B2.B!
Oscillators
Oscillators are similar to the SLs in this rule in that they also have cores, but there are rotors attached to them instead of only destructive cells.
Here is an incomplete collection:
Code: Select all
x = 74, y = 230, rule = B1S345678F2378K468L03568
B.B4.2A12.BA8.2A$B.B4.2A12.2B8.2A$3B6.B8.2A13.B$2.B5.2B2.B5.2A.2B7.B$
2.B6.A.B.2A4.A9.A3.A$8.3A2.2A4.2A2.2A3.3A.B.2A$9.A9.2A2.2A4.3A2.2A$
30.2A7$3B4.B.B8.A$B7.A8.3A$3B4.3A3.2A.B.A$2.B5.A4.2A3.B2.A$3B12.B3.B
3A$21.A$20.B$18.B$19.2A$19.2A7$3B4.2A3.B7.2A11.2A15.A11.2A6.A$B6.2A4.
A6.2A11.3AB12.3A10.2A5.3A$3B6.A.4A4.B2.A9.B.A.2B10.A.A7.A.2B8.A.B$B.B
10.A6.A3.B8.B2.B.2A.A4.3A.B6.3AB8.BAB$3B9.3A3.2A2.A.A.2A5.ABAB.5A3.2A
4.2A4.A3.2B$13.A4.2A.B.5A9.B.A.A6.B3.2A5.2A.B.2A$21.A.2A13.2B9.B2.2A
6.2A2.2A5.B$20.3A24.2A11.2A10.2A$21.A25.2A23.2A7$3B19.2A$2.B6.2B9.B3A
$2.B5.B.A.A6.2B.A.B$2.B5.6A3.2A.A3B$2.B5.B.A.A4.2A3.A$9.2B8.B8$3B6.B
13.2A$B.B4.2A4.B9.2A$3B4.2A.B3.2A3.2A.B$B.B7.A.B.2A3.2A.A.2A$3B6.3A9.
2B.2A.2A$10.A11.B4.2A$21.A.B2.B$21.AB.B$25.2A$25.2A7$3B9.2A$B.B5.A.B.
2A$3B4.3A2B2.B$2.B5.A2.BA$3B7.2B$8.A$7.3A$8.A7$B.3B5.A.A.B$B.B.B4.5AB
3.2A$B.B.B5.A.A.B3.2A$B.B.B7.B4.B$B.3B9.B2.B$15.2A$15.2A7$B.B$B.B$B.B
4.3B$B.B5.A2.BA$B.B4.4A.B$8.A.2A2.B$12.2A$12.2A7$B.3B16.A.A$B3.B7.AB
6.5A2.2A$B.3B5.B2.A.B5.A.A.B.2A$B.B6.B.4A8.B2.A$B.3B5.2A.2A14.2A$11.
2A16.2A$28.B$24.B2.B$25.2A$25.2A7$B.3B14.2A$B3.B4.2A8.2A$B.3B4.2A7.A$
B3.B6.2B$B.3B7.BA$9.2A$9.2A$11.B$11.B$9.2A$9.2A7$B.B.B$B.B.B7.B$B.3B
5.B.A.B$B3.B6.3A$B3.B6.3A7$B.3B$B.B8.B8.B3.BA$B.3B4.2A7.2A4.2B$B3.B4.
2A.B5.2A2.B2.B$B.3B5.2A8.B2.2A$9.2A.B10.2A2.B$9.2A11.B2.B2.2A$11.B10.
2B4.2A$22.AB3.B8$B.3B$B.B$B.3B12.BA$B.B.B5.B2.BA4B$B.3B6.2A.B.A.BA$
11.2A2.3AB$15.2A.B$17.B8$B.3B15.2A5.2A.A$B3.B15.2A5.5AB.2A$B3.B13.B7.
B.A.A3.2A$B3.B6.B6.B8.2B.2B.B2.B$B3.B4.2A6.B$9.2A3.3B.2A$11.B3.A2.2A$
13.B3A$15.2A$11.2A$11.2A7$B.3B12.A$B.B.B11.3A$B.3B12.A$B.B.B10.B3A$B.
3B6.B5.A$9.2A5.B$9.2A4.B$16.2A$16.2A7$B.3B$B.B.B$B.3B$B3.B$B.3B6.2B.B
A$10.B.A.A.A$11.5AB$11.2A.A.B!
Spaceships
There are 2 very common, small spaceships: a 6c/18o and a c/2o:
Code: Select all
x = 14, y = 2, rule = B1S345678F2378K468L03568
AB8.A2BA$2BA7.4B!
The fastship produces no sparks, but has some edge-repair capabilities.
There is also a rarer 2c/6o, which consists of 2 slowships next to each other:
Code: Select all
x = 7, y = 2, rule = B1S345678F2378K468L03568
.BA.AB$A2B.2BA!
Code: Select all
x = 32, y = 8, rule = B1S345678F2378K468L03568
A2BA16.A2BA$4BA14.A4BA$4.2B12.2B4.2B$4.2B10.A3B4.3BA$15.A2B8.2BA$14.
2B12.2B$12.A3B12.3BA$12.2B16.2B!
Code: Select all
x = 9, y = 3, rule = B1S345678F2378K468L03568
5.A2BA$A2BA.4B$4B!
bprentice also found a p36 c/3 rake which he then turned into p36 and p72 c/3 ships. I've reduced them:
Code: Select all
x = 58, y = 34, rule = B1S345678F2378K468L03568
4.A28.A$4.2B26.2B$3.3B26.3B$3.ABA2.A2B21.ABA2.2BA$8.3B26.3B$7.ABA28.A
3$6.2BA6.AB$6.AB7.2BA$38.2B$38.2B2$41.A$41.2B$34.2BA4.BA$34.AB2$56.A$
55.2B$55.3B$5.A2B$6.BA48.2B$53.A.A2B$2BA26.A2B19.A2B$3B26.3B20.2B$.A28.
A4.A2B4.BA9.2B$36.BA3.A2B9.BA$4.A36.3BA$3.2B36.3B$3.2B$4.A$6.2BA$6.AB
!
There are various linear growth mechanisms, from guns to rakes. Here are the notable ones, in chronological order of discovery:
p261 guns (2 single barrel slowship guns, 1 double barrel slowship gun & 1 single barrel fastship gun):
Code: Select all
x = 49, y = 179, rule = B1S345678F2378K468L03568
20.B2.B$21.2A$21.2A$20.B2.B$20.B2.B$21.2A$21.2A$20.B2.B$20.B2.B$21.2A
$21.2A$20.B2.B$20.B2.B$21.2A$21.2A$20.B2.B$20.B2.B$21.2A$21.2A$20.B2.
B$20.B2.B$21.2A$21.2A$20.B2.2B$20.B2.2BA$21.2A$21.2A$20.B2.B$20.B2.B$
21.2A$21.2A2.2B$20.B2.B.BA$20.B2.A$21.2A$21.2A$20.B2.B$20.B2.B$21.2A.
2B$21.2A.4B$20.B2.B2.2B$20.B2.B2.2B$21.2A$21.2A$20.B2.B$20.B2.B$21.2A
$21.2A.2B$20.B2.2BA27$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.
B$.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A$.2A2.2A2.2A2.2A2.2A
2.2A2.2A2.2A2.2A2.2A2.2A2.2A$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B
2.2B2.B$9.B3.2BA19.2BA5.2B$7.5B.BA20.AB6.A$7.B2.2B12$6.2B2.AB$6.2B2A4B
22.A4.2B$9.B2.2BA20.2B4.3BA$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B
2.2B2.B$.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A$.2A2.2A2.2A2.
2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.
2B2.2B2.2B2.B15$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.B$.2A2.
2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A$.2A2.2A2.2A2.2A2.2A2.2A2.2A
2.2A2.2A2.2A2.2A2.2A$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.B
$9.B3.2BA19.2BA5.2B$7.5B.BA20.AB6.A$7.B2.2B13$6.2B2.AB$6.2B2A4B22.A4.
2B$9.B2.2BA20.2B4.3BA$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.
B$.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A$.2A2.2A2.2A2.2A2.2A
2.2A2.2A2.2A2.2A2.2A2.2A2.2A$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B
2.2B2.B15$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.B$.2A2.2A2.2A
2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A$.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.
2A2.2A2.2A2.2A$B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.B$9.B3.
2BA19.2BA5.2B$7.5B.BA20.AB6.A$7.B2.2B13$7.2B2.AB$7.2B2A4B22.A4.2B$10.
B2.2BA20.2B4.3BA$.B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.B$2.
2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A2.2A$2.2A2.2A2.2A2.2A2.2A2.
2A2.2A2.2A2.2A2.2A2.2A2.2A$.B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B2.2B
2.2B2.B!
Code: Select all
x = 7, y = 15, rule = B1S345678F2378K468L03568
.B2.B$2.2A$2.2A$4.B$2.A2.A$2.2B.BA$.B.A.2B$AB3A$.B.A.2B$2.2B.BA$2.A2.
A$4.B$2.2A$2.2A$.B2.B!
Code: Select all
x = 6, y = 7, rule = B1S345678F2378K468L03568
.ABA$.3B$B.A.B$B3AB$B.A.2B$.3BA$.B.A!
Code: Select all
x = 243, y = 46, rule = B1S345678F2378K468L03568
238.A$146.2BA89.2B$57.A49.A38.3B88.3B$7.A49.2B48.2B38.A4.BA78.A2B2.AB
A$6.2B48.3B47.3B36.2BA3.A2B78.3B$7.B43.A2B2.ABA42.A2B2.ABA36.3B3.B81.
A$.2BA.2B.2B41.3B47.3B46.B2.2B$.2B3.A.2B42.A49.A49.3B$4BA144.4B$AB147.
2B.A$148.2B83.2B$150.B82.2B$52.2B48.2B45.2B82.2A$52.2B48.2B46.A$52.2A
37.A10.2A130.2BA$91.2B141.AB$53.2BA34.3B10.2BA$53.AB35.ABA10.AB53.B$157.
AB.B$91.ABA65.2BA62.A$91.3B63.2B64.2B$157.2B64.AB$147.2B.A$147.2B.2B$
149.B$149.2B24.2BA$149.A25.2B$174.4BA56.A2B$174.AB60.BA$54.A2B113.B$55.
BA112.AB.B$171.2BA38.A$169.2B40.2B$149.A.2B16.2B40.AB$148.2B.2B$150.B
$149.2B46.A42.2BA$150.A46.2B41.3B$59.2BA134.3B35.2BA4.A$59.3B172.AB$53.
2BA4.A97.AB36.2B$53.AB103.2B36.2BA.A$158.2B40.2BA$158.AB40.2B$199.2B$
199.AB!
- p36, fires 2 back slowships and 1 side slowship per cycle
- p36, fires 1 side slowship per cycle
- p36, fires 2 back slowships per cycle
- p72, fires 3 back slowships per cycle
- p72, fires 1 side fastship per cycle
Code: Select all
x = 6, y = 6, rule = B1S345678F2378K468L03568
2.ABA$2.3B$.B.A.B$.B3A$2B.2A$.AB2.B!
Code: Select all
x = 6, y = 6, rule = B1S345678F2378K468L03568
2.B$2A.2B$2A.A$2.3AB$2.2A.B$4.B!
Code: Select all
x = 8, y = 3, rule = B1S345678F2378K468L03568
6.2A$AB4.2A$2BA2.B!
Code: Select all
x = 17, y = 42, rule = B1S345678F2378K468L03568
.2BA$.2B$4B$AB.4BA$4.B.2B$5.2A$7.A$6.3B$6.A2B4$14.A$9.2B.4BA$8.AB2.B.
3B$11.B3.A$11.2BA$11.2B$11.A2$7.3B$7.A2B$7.A$6.3B$6.A2B9$8.2B$5.2B.2B
$5.2BA$5.AB2.B$9.B.B$12.B$9.3B$9.A.B$11.A!
Code: Select all
x = 8, y = 11, rule = B1S345678F2378K468L03568
5.2A$5.2A$4.B6$6.2A$AB4.2A$2BA2.B!
I found a p119 gun for the smallest c/2 in the extensible family:
Code: Select all
x = 11, y = 20, rule = B1S345678F2378K468L03568
3.B$4.2A$4.2A$4.2A$4.2A2$4.2A$4.2A$6.B2$.2B$B.A.B$.3AB$.2A.B$5.B$3.2A
$3.2A2.A2.B$5.B2.2A$8.2A$10.B!
Stable catalysts are versatile and easy to come across by accident. This is because the cores of still lifes are resilient, so the only non-rock cells in catalysts are the destructive cell attachments.
It was known since the discovery of this rule that the extended block was a versatile catalyst which could act as a reflector for both common ships. Some attachments can be removed, resulting in this:
Code: Select all
x = 83, y = 32, rule = B1S345678F2378K468L03568
2.B26.2A$2A14.2B11.2A28.2A$2A13.A2B10.B2.B27.2A$2.B12.A2B40.B2.B18.B$
16.2B63.2A$74.BA5.2A$73.A2B4.B$74.2B$60.A2B$60.3B$61.A4$.4B$.4B23.2A$
2.2A23.4B$27.4B$77.A$76.3B$76.2BA$63.2B$58.B4.2BA$56.2A5.AB$56.2A$58.
B18.B2.B$78.2A$14.2B62.2A$14.2BA12.B$B2.B10.2BA13.2A$.2A11.2B14.2A$.2A
26.B!
Code: Select all
x = 5, y = 10, rule = B1S345678F2378K468L03568
.B$2.2A$2.2A$.B2.B5$.BA$A2B!
Code: Select all
x = 11, y = 12, rule = B1S345678F2378K468L03568
2B$2BA$2BA$2B2$7.3B$6.B.A.B$6.B3AB$3.B4.A.B$4.2A.3B$4.2A$6.B!
Spaceships aren't the only type of signal in this rule. There is also this c/2 signal:
Code: Select all
x = 4, y = 5, rule = B1S345678F2378K468L03568
.BA$.2B$B2.B$.2A$.2A!
I also found 2 new signal types.
The first is this p6 lightspeed signal:
Code: Select all
x = 7, y = 34, rule = B1S345678F2378K468L03568
2A3.2A$2A3.2A$2.B.B3$2.B.B$2A3.2A$2A3.2A$2.B.B3$2.B.B$2A3.2A$2A3.2A$
2.B.B3$2.B.B$2A3.2A$2A3.2A$2.B.B3$2.B.B$2A3.2A$2A3.2A$2.B.B3$2.B.B$2A
3.2A$2A.A.2A$2.3B$2.ABA!
Code: Select all
x = 81, y = 25, rule = B1S345678F2378K468L03568
4.B.B15.B.B$2.2A3.2A11.2A3.2A$2.2A3.2A11.2A3.2A$4.B.B15.B.B3$4.B.B15.
B.B$2.2A3.2A11.2A3.2A$2.2A3.2A11.2A3.2A$4.B.B15.B.B$37.2A4.2A3.2A4.2A
$37.2A4.2A3.2A4.2A13.2A8.2A$4.B.B15.B.B11.B2.B2.B2.B.B2.B2.B2.B12.2A
8.2A$4A3.2A11.2A3.2A44.B6.B$4A3.2A11.2A3.2A9.B2.B2.B2.B.B2.B2.B2.B$4.
B.B15.B.B12.2A4.2A3.2A4.2A$37.2A4.2A3.2A4.2A14.BAB2.B$45.B.B20.2A.B.
2A$68.2A.B.2A$70.B.B2.B$45.B.B$A2BA39.2A.A.2A20.B.B2.B$4B39.2A.B.2A
18.2A3.2A$23.BA20.3B20.2A3.2A$22.A2B!
Code: Select all
x = 18, y = 5, rule = B1S345678F2378K468L03568
BA$18B$.A2.A2.A2.A2.A2.A$18A$.A2.A2.A2.A2.A2.A!
Code: Select all
x = 40, y = 11, rule = B1S345678F2378K468L03568
BA$9B15.B.A$.A2.A2.A.B14.B3A7.BA$9AB14.B.A6.6B$.A2.A2.A.B14.B.A5.B.A
2.A.B$7.A.B14.B3A4.B6AB$6.3AB5.BA7.B.A5.B.A2.A.B$7.A.B5.9B8.B.A2.A.B$
7.A.B6.A2.A2.A9.B6AB$6.3AB5.9A8.B.A2.A.B$7.A.B6.A2.A2.A10.6B!
In terms of logic, the only logic component made so far is this AND gate:
Still, with a bit of effort, it should be possible to prove this rule to be TC.c0b0p0 wrote: September 15th, 2014, 9:30 pmHere is a 42-cell AND gate in that rule.bprentice wrote: Is this rule universal?Code: Select all
x = 83, y = 105, rule = B1S345678F2378K468L03568 54.2A$45.A2B6.2A$46.BA5.B3$39.A$37.2A$37.2A$39.A11.2A$51.2A$50.B$2.A$ 2A$2A$2.A12$29.A2B$30.BA11$80.A$81.2A$81.2A$26.B$24.2A$24.2A18$48.A$ 49.2A$49.2A39$42.A$43.2A$43.2A!
I don't think universal construction is possible in this rule, because SLs are so stable. But who knows? Somebody might come up with a completely new method to do it.
Goals
Prove/disprove omniperiodicity
Prove/disprove universal construction
Find more simplified spaceship speeds
Find a diagonal spaceship
Find an oblique spaceship