Wickstretcher Challenge

[apg]

This minuscule object begins to grow without bound. Can you complete it?

Code: Select all

.**......
*..*.....
.**..****
...**...*
.**.....*
*..*.*.*.
.**......

Interestingly, firing a LWSS at the partial wickstretcher transforms it into a still-life, whilst the LWSS becomes a glider:

Code: Select all

.**..............
*..*.............
.**..****...****.
...**...*...*...*
.**.....*...*....
*..*.*.*.....*..*
.**..............

[HartmutHolzwart]

Somewhat related question:

What is the convoy with least constant breadth that can support an arbitrary long *WSS?

Cheers,
Hartmut

The solution I found:

x = 74, y = 59, rule = B3/S23
5$8b4o7b4o7b4o7b4o7b4o$7b6o5b6o5b6o5b6o5b6o$6b2ob4o4b2ob4o4b2ob4o4b2ob
4o4b2ob4o$7b2o9b2o9b2o9b2o9b2o3$10bo10bo10bo10bo10bo$12bo10bo10bo10bo
10bo$10b4o7b4o7b4o7b4o7b4o$9b2o9b2o9b2o9b2o9b2o$7b2obo7b2obo7b2obo7b2o
bo7b2obo$7bo2b2o6bo2b2o6bo2b2o6bo2b2o6bo2b2o$7bo5bo4bo5bo4bo5bo4bo5bo
4bo5bo$8b5o6b5o6b5o6b5o6b5o2$8b5o6b5o6b5o6b5o6b5o6bo2bo$7bo5bo4bo5bo4b
o5bo4bo5bo4bo5bo4bo$7bo2b2o6bo2b2o6bo2b2o6bo2b2o6bo2b2o6bo3bo$7b2obo7b
2obo7b2obo7b2obo7b2obo7b4o$9b2o2bo6b2o2bo6b2o2bo6b2o2bo6b2o2bo$10b2obo
bo5b2obobo5b2obobo5b2obobo5b2obobo2$5b2o$4b2ob63o$5b65o$6b3o8b3o8b3o8b
3o8b3o8b8o$10b4o7b4o7b4o7b4o7b4o$8b2obobo5b2obobo5b2obobo5b2obobo5b2ob
obo5bo2bo$7bo3b2o5bo3b2o5bo3b2o5bo3b2o5bo3b2o5bo$7bo2b2o6bo2b2o6bo2b2o
6bo2b2o6bo2b2o6bo3bo$7b2o4bo4b2o4bo4b2o4bo4b2o4bo4b2o4bo4b4o$9b4o7b4o
7b4o7b4o7b4o2$9b4o7b4o7b4o7b4o7b4o$7b2o4bo4b2o4bo4b2o4bo4b2o4bo4b2o4bo
$7bo2b2o6bo2b2o6bo2b2o6bo2b2o6bo2b2o$7bo3b2o5bo3b2o5bo3b2o5bo3b2o5bo3b
2o$8b2o2b3o4b2o2b3o4b2o2b3o4b2o2b3o4b2o2b3o$10b2o9b2o9b2o9b2o9b2o$10b
2ob2o6b2ob2o6b2ob2o6b2ob2o6b2ob2o3$8b4o7b4o7b4o7b4o7b4o$7b6o5b6o5b6o5b
6o5b6o$6b2ob4o4b2ob4o4b2ob4o4b2ob4o4b2ob4o$7b2o9b2o9b2o9b2o9b2o!

[HartmutHolzwart]

Slightly smaller
x = 100, y = 41, rule = B3/S23
3$10b2o9b2o9b2o9b2o9b2o$9b2ob4o4b2ob4o4b2ob4o4b2ob4o4b2ob4o$10b6o5b6o
5b6o5b6o5b6o$11b4o7b4o7b4o7b4o7b4o3$12bo10bo10bo10bo10bo$10b5o6b5o6b5o
6b5o6b5o6bo2bo$9bo5bo4bo5bo4bo5bo4bo5bo4bo5bo4bo$9bo2b2o6bo2b2o6bo2b2o
6bo2b2o6bo2b2o6bo3bo$9b2obo7b2obo7b2obo7b2obo7b2obo7b4o$11b2o2bo6b2o2b
o6b2o2bo6b2o2bo6b2o2bo$12b2obobo5b2obobo5b2obobo5b2obobo5b2obobo2$7b2o
$6b2ob63o$7b65o$8b3o8b3o8b3o8b3o8b3o8b8o$12b4o7b4o7b4o7b4o7b4o$10b2obo
bo5b2obobo5b2obobo5b2obobo5b2obobo5bo2bo$9bo3b2o5bo3b2o5bo3b2o5bo3b2o
5bo3b2o5bo$9bo2b2o6bo2b2o6bo2b2o6bo2b2o6bo2b2o6bo3bo$9b2o4bo4b2o4bo4b
2o4bo4b2o4bo4b2o4bo4b4o$11b4o7b4o7b4o7b4o7b4o$13bo10bo10bo10bo10bo$13b
2o9b2o9b2o9b2o9b2o3$10b2o9b2o9b2o9b2o9b2o$9b2ob4o4b2ob4o4b2ob4o4b2ob4o
4b2ob4o$10b6o5b6o5b6o5b6o5b6o$11b4o7b4o7b4o7b4o7b4o!

One more

x = 90, y = 36, rule = B3/S23
2$26b6o22b6o$26bo5bo21bo5bo$26bo27bo$27bo4bo22bo4bo2$28bobo25bobo$16b
2obo7b2obo24b2obo$13b3o3bo6bo2bo3b2o2b3o6bo7bo2bo3b2o2b3o6bo$13bo11b4o
3bo3bo7b2obo5b4o3bo3bo7b2obo$13bo6bo3bo3bo2b2ob3o3bo3bo7bo3bo2b2ob3o3b
o3bo$14b3o3bo3bo2bo2bo2bobo2bob2o2bo7bo2bo2bo2bobo2bob2o2bo$17b2obo3bo
3bob2o5b2ob2o2bobobo3bo3bob2o5b2ob2o2bobobo$25b2obob2obo13bo5b2obob2ob
o13bo2$15b2o$14b2ob64o$15b66o$16b9o10b12o3b3o10b12o3b2o$17bo8b3o3bo14b
o6b3o3bo14bo$15bo2b2obo2bo4bobob3o2b3o4bobo4bo4bobob3o2b3o4bobo$18b2ob
o2bo2bo3b4obo7bobo5bo2bo3b4obo7bobo$13b2obo7bo10bobo3bobo8bo10bobo3bob
o$13bo3bo7b4o3bo3b2o6bo2bo5b4o3bo3b2o6bo2bo$13bo3bo8bo5b2o11bobo6bo5b
2o11bobo$14bo2bo9b2o9b2o15b2o9b2o$16bo11b3o25b3o3$26b6o22b6o$26bo5bo
21bo5bo$26bo27bo$27bo4bo22bo4bo!