OCA:TDryLife

tDryLife
x=64, y = 64, rule = B37/S2-i34q ! #C [[ THEME Inverse ]] #C [[ RANDOMIZE2 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	2-i34q/37 B37/S2-i34q
Character	Chaotic

This rule is commonly known as "tDryLife" due to its adding the B7 transition to tlife, analogous to DryLife.

Unlike DryLife, it is not explosive, and has a lot of very interesting patterns. However, the only two relatively common oscillators are the cap and the toad, neither with a usable spark, resulting in no guns having been discovered so far (as opposed to the well-known rakes). Mangoes are also much more common than in Life.

Many interesting spaceships have been constructed in this rule. For example, there is a naturally occurring 2c/23 orthogonal spaceship involving the T trying to escape a pre-beehive. Luka Okanishi used this spaceship to create other patterns moving at this speed. A T forward rake was also built using known reflections for gliders and Ts when colliding with the 2c/23 spaceship.

x = 8, y = 4, rule = B37/S2-i34q bobo$o2bo2b2o$bobo2b2o$6b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

The 2c/23 ship (click above to open LifeViewer) Catagolue: here

A c/2 orthogonal spaceship based on 2 B-heptominoes has been seen to occur naturally.

x = 13, y = 17, rule = B37/S2-i34q 5b2o$2b5o$b2obo$b2o3$bo4bo3bo$bo5bo2bo$2bo8bo$8bo2b2o$2b2o4bob3o$bobo 8bo$bo2b2o$o3bo$bo2bo3b2obo$b3o5b3o$10bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

The c/2 ship (click above to open LifeViewer) Catagolue: here

It has a 11c/776 diagonal glide symmetric pond puffer, which is actually the century. It parallels the R-pentomino based 9c/28 orthogonal pond puffer from DryLife. In June 2017, Luka Okanishi managed to build a 22c/1552 diagonal spaceship using pond puffer interactions.

x = 61, y = 45, rule = B37/S2-i34q 41b2o$40bo2bo$40bo2bo$41b2o3$58b2o$57bo2bo$57bo2bo$58b2o2$30b2o$29bo2b o$29bo2bo$30b2o3$47b2o$46bo2bo$46bo2bo$47b2o2$19b2o$18bo2bo$18bo2bo$ 19b2o2$3o$obo33b2o$o2bo31bo2bo$2o3bo29bo2bo$bo4bo29b2o$5bobo3bo$4b3o4b 2o$12bo$11bo$7b2o2bo$b2o7b2o$b2o4b2o2bo$7bo3bo$8bo3b2o$8bo5bo2$10bob2o $11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

The pond puffer (click above to open LifeViewer) Catagolue: here

Most interestingly, there is a (2,6)c/21 (slope 3) ship puffer. This can be stabilised into various interesting patterns, such as a two-engine oblique spaceship (specifically a camelship). Alexey Nigin has created a quadratic growth pattern which uses oblique spaceships to create pond puffers, based on a reaction discovered by Rhombic. A much slower quadratic growth pattern was discovered later by Rhombic, based on the synthesis of pond puffers with a T and a pond.

x = 56, y = 24, rule = B37/S2-i34q 53bo$48bo2b4o$49b2o4bo$52bobo$42bo8bobo$36b3o3b2ob2o$42b2ob2o3$35bobo$ 36bobo$37b2o2$24b2o$24bobo$25b2o2$12b2o$12bobo$13b2o2$2o$obo$b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]

The (12, 4)c/42 ship puffer (click above to open LifeViewer) Catagolue: here

External links

• tdrylife (discussion thread) at the ConwayLife.com forums
• tdrylife at Adam P. Goucher's Catagolue