OCA:B2i3/S23

B2i3/S23
x=64, y = 64, rule = B2i3/S23 ! #C [[ THEME Inverse ]] #C [[ RANDOMIZE2 RANDSEED 1729 THUMBLAUNCH THUMBNAIL THUMBSIZE 2 GRID ZOOM 6 WIDTH 600 HEIGHT 600 LABEL 90 -20 2 "#G" AUTOSTART PAUSE 2 GPS 8 LOOP 256 ]] LifeViewer-generated pseudorandom soup
Rulestring	23/2i3 B2i3/S23
Character	Explosive
Black/white reversal	B0123478/S012346-i78

B2i3/S23 is an isotropic non-totalistic cellular automaton. In this rule, a cell survives from one generation to the next when it has 2 or 3 neighbours, and a new cell is born when it has 2 opposite orthogonally adjacent neighbours or when it has 3 neighbours. A name "HoneyBomb Life" was proposed for this rule, because honeyfarm predecessors evolve into a sparky p20 oscillator instead.

Patterns

Some patterns from regular Life are compatible with this rule except most spaceships (two noatable exceptions are the glider and 70P2H1V0.1). Honey farm constellations exist in the rule, but common predecessors from Life evolve into the p20 "honeybomb" shown below:

x = 4, y = 3, rule = B2i3/S23 b2o$o2bo$b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 12 Y 1 GPS 10 PAUSE 2 AUTOSTART LOOP 160 T 159 PAUSE 2 ]]

Bun evolving into "honeybomb" (click above to open LifeViewer) Catagolue: here

Even though B2i3/S23 only differs from Life in one birth condition (B2i), most large soups tend to explode. An example 8-cell exploding pattern is shown below:

x = 4, y = 3, rule = B2i3/S23 bo$b2o$o2bo$b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 2 ZOOM 30 STEP 3 T 0 PAUSE 2 T 100 ZOOM 5 T 1000 ZOOM 1 T 2000 STEP 6 AUTOSTART LOOP 10000 ]]

An exploding 8-cell pattern (click above to open LifeViewer)

External links

• HoneyBomb Life (discussion thread) at the ConwayLife.com forums
• B2i3/S23 at Adam P. Goucher's Catagolue