Sphenocorona wrote:One problem with the Pi wave stabilization problem is it's hard to stabilize it from the back. If there was a way to do that with a stream of spaceships then it could be possible to make a wave ship that synthesizes its own supports.
muzik wrote:Asking obvious questions like I normally do, is c/8 the fastest possible speed for a slope 3 spaceship, and c/10 the fastest for a slope 4? Since the fastest for a slope 0 (orthogonal) is c/2, a slope 1 (diagonal) c/4 and a slope 2 c/6, it should probably follow that pattern.
Also, has anyone tried putting almost knightship through a further search yet, to see if anything useful appears at the back end?
BlinkerSpawn wrote:I couldn't find the Two Forbidden Directions thread when I tried to look for it, but that line of reasoning allows one to prove that in Life the shortest possible time in which a pattern can move (x,y) [with x >= y] is 2x+y generations.
muzik wrote:Also, has anyone tried putting almost knightship through a further search yet, to see if anything useful appears at the back end?
x = 13, y = 8, rule = B3/S23
ob2o$3o$bo3$10bobo$10b2o$11bo!
x = 24, y = 26, rule = B3/S23
bo$bob2obo5b2ob2o$obo3bo4b2o4bo3b3o$b2o3bo2b2obobo3bob2obo$2bo7bobo$b
2ob2obobobob2o$bo2b3o3bo2bo2bo$bo4b3o4bo2bo$bo3bo2b2o4bo$2bo10bo$3bo6b
4ob2o$2obo2b2o2b2o3bo$3b2ob2obo2b2o$obo2bob3o2bo$o3bo7b2o$3bo4bobo$2b
2o4bobobo$2bob3o$3b2o3bo$3bo$bob2o$2bobo$2bob2o$3bobo$o2bo$o!
x = 15, y = 21, rule = B3/S23
2b2o$o3bo$o5b2o$bo3b3o$2b2o4bo4bo$2b2o8b2o$2b2o5bo2b2o$2bo2bo3bo2b3o$
3bo3bo4bobo$5b3o2b2o$5b2o4bobo$6b2o$5b4o$4b2o4bo$4bo3bobo$5b2o$6b2obo$
8b3o$10bo$10bo$10bo!
muzik wrote:If we already have successfully found 2c/8 and 4c/8 spaceships through searches, why do we not have c/8 and 3c/8 yet?
Similarly, we have the 3c/9 117P9H3V0, which I'm assuming was found with at least some help of a search program. So why no c/9, 2c/9 or 4c/9?
muzik wrote:Also, I've had an idea for a search program that could potentially catch a few of the lower hanging fruits: it would kind of randomise what it searches for (the period being a random number from 6 to 12, the symmetries being randomly chosen as well). If anyone wants to devise a program that runs along those lines, the elusive c/8 orthogonal could be hanging on a branch painted with camouflage colours.
muzik wrote:Has anyone considered programming that, or is there such a search program that exists?
muzik wrote:anyway, decided to post a few c/8 diagonal partials from another thread
muzik wrote:Looking though the forum, I haven't seen any partials for slope 3 knightships...
x = 9, y = 13, rule = B3/S23
7b2o$4b2ob2o$2o4b2o$3o2bo$2b6o$2bo$b4ob2o$bo5bo$5bo$3b2o3bo$4bo2b2o$4b
3o$5bo!
wildmyron wrote:muzik wrote:Looking though the forum, I haven't seen any partials for slope 3 knightships...
Here's my best attempt at a (3,1)c/8 knightship (from a width 11 search in gfind):Code: Select allx = 9, y = 13, rule = B3/S23
7b2o$4b2ob2o$2o4b2o$3o2bo$2b6o$2bo$b4ob2o$bo5bo$5bo$3b2o3bo$4bo2b2o$4b
3o$5bo!
gmc_nxtman wrote:muzik wrote:If we already have successfully found 2c/8 and 4c/8 spaceships through searches, why do we not have c/8 and 3c/8 yet?
Similarly, we have the 3c/9 117P9H3V0, which I'm assuming was found with at least some help of a search program. So why no c/9, 2c/9 or 4c/9?
Probably because a 3c/9 or 4c/8 ship usually still has a period 2, 3, or 4 front end, which aren't as hard to find.
x = 34, y = 22, rule = B3/S23
8$10bo8bo$9bobo6bobo$8bo2bo6bo2bo$9b2o8b2o$14b2o$12b2o2b2o$12bo4bo$12b
o4bo$11b8o$10b4o2b4o$9bo2bo4bo2bo$8bo3bo4bo3bo$9bo2bo4bo2bo!
muzik wrote:Still, there are a few front ends, like this c/8:
x = 25, y = 14, rule = B3/S23
2bo8bo8b2o$bobo6bobo2bo3b2obobo$o2bo5bo5bo2b2ob2o$b2o5b2o5bo3b2o$5b8o
7bo$5bo2b2o10b2ob2o$4bo3bo13bobo$4bo3bo13bobo$5bo2b2o10b2ob2o$5b8o7bo$
b2o5b2o5bo3b2o$o2bo5bo5bo2b2ob2o$bobo6bobo2bo3b2obobo$2bo8bo8b2o!
simsim314 wrote:muzik wrote:Still, there are a few front ends, like this c/8:
Here is plausible continuation:Code: Select allx = 25, y = 14, rule = B3/S23
2bo8bo8b2o$bobo6bobo2bo3b2obobo$o2bo5bo5bo2b2ob2o$b2o5b2o5bo3b2o$5b8o
7bo$5bo2b2o10b2ob2o$4bo3bo13bobo$4bo3bo13bobo$5bo2b2o10b2ob2o$5b8o7bo$
b2o5b2o5bo3b2o$o2bo5bo5bo2b2ob2o$bobo6bobo2bo3b2obobo$2bo8bo8b2o!
x = 14, y = 35, rule = B3/S23
2bo8bo$bobo6bobo$o2bo6bo2bo$b2o8b2o$6b2o$4b2o2b2o$4bo4bo$4bo4bo$3b8o$
2b4o2b4o$bo2bo4bo2bo$o3bo4bo3bo$bo2bo4bo2bo3$b3o6b3o3$2bo8bo$b3o6b3o$
2ob3o2b3ob2o$obo2bo2bo2bobo$b2o3b2o3b2o$5bo2bo$bo3b4o3bo2$bo2bo4bo2bo$
2b3o4b3o$2bo8bo$b2o2b4o2b2o$14o$3o8b3o$6b2o$2o3b4o3b2o$o12bo!
x = 60, y = 61, rule = B3/S23
3bo$b2obo4b2o$b2o5bobo$2obobobo$3o3bob2o$b2obob4o$b2o2bobo$7b2o$5bobo$
6bo$58b2o$57b3o$50b2o3b3o$50b2o2bo$50b2o3bob2o$51b3obo$6b2o2bo3bo29b3o
b2ob3o$6b2o2bobobo34b2o2b2o3bo$6b2o3bo41bo2b2o$7b3ob2o42b3obo$3ob2ob3o
bo2bo38b2o$5b2o2b2ob2o42b4o$9bo3b2o38b2o$13bo41b3obo$9b2ob2o39bo2b2o$
49b2o2b2o3bo$44b3ob2ob3o$51b3obo$50b2o3bob2o$50b2o2bo$50b2o3b3o$57b3o$
6b2o2b2o46b2o$4b4o$4bo3bob2o$5bo4b2o$3ob2obo2b2o2bo$2bo7bo$2b2ob2o2b2o
$3bobob2obo13$6bo3bo3b2o$6bo3b2obo$5b2o3b2ob2obo$5bobobo4bo$3ob2ob2ob
2ob4o$5bo2bob3ob2o$6b4o$12bo3bo$15b2o!
GUYTU6J wrote:c/8 partials,not promisingCode: Select allx = 60, y = 61, rule = B3/S23
3bo$b2obo4b2o$b2o5bobo$2obobobo$3o3bob2o$b2obob4o$b2o2bobo$7b2o$5bobo$
6bo$58b2o$57b3o$50b2o3b3o$50b2o2bo$50b2o3bob2o$51b3obo$6b2o2bo3bo29b3o
b2ob3o$6b2o2bobobo34b2o2b2o3bo$6b2o3bo41bo2b2o$7b3ob2o42b3obo$3ob2ob3o
bo2bo38b2o$5b2o2b2ob2o42b4o$9bo3b2o38b2o$13bo41b3obo$9b2ob2o39bo2b2o$
49b2o2b2o3bo$44b3ob2ob3o$51b3obo$50b2o3bob2o$50b2o2bo$50b2o3b3o$57b3o$
6b2o2b2o46b2o$4b4o$4bo3bob2o$5bo4b2o$3ob2obo2b2o2bo$2bo7bo$2b2ob2o2b2o
$3bobob2obo13$6bo3bo3b2o$6bo3b2obo$5b2o3b2ob2obo$5bobobo4bo$3ob2ob2ob
2ob4o$5bo2bob3ob2o$6b4o$12bo3bo$15b2o!
BlinkerSpawn wrote:GUYTU6J wrote:c/8 partials,not promisingCode: Select allrle
That may be so but I, for one, can't say I've seen any partials quite like these before.
How did you find them?
BlinkerSpawn wrote:At the very least the front ends are there.
The bottommost one looks the best at first glance.
Now that these have been found, maybe you could try extending these partials as an exercise for other search programs. I know gfind and zfind work, but there's compiling stuff that has to go on first that I haven't even really bothered to go through.
Building lookup tables.
Lookup tables built.
31
o.....
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o...o.
.o....
.oo...
.o....
.oo...
......
.oooo.
.....o
..ooo.
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......
o.....
...ooo
oo..oo
.oooo.
....o.
160
28
33554432
2636
o.....
.o....
.o....
o.....
......
......
..o...
oo.o..
.oo...
.oo...
......
.ooo..
.o..o.
.o.oo.
oo....
.o.o..
.ooo..
.oo.o.
......
...o..
ooooo.
168
56
67108864
5269
...o..
...oo.
..o...
....oo
..o...
.o..oo
.oo.oo
..o...
......
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..o...
..o...
.oo...
o.o...
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..o...
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...o..
....o.
o.o.o.
o...o.
.o..o.
.ooooo
.o....
247
Search complete: no spaceships found.
175377536
13694
GUYTU6J wrote:By the way ,how to put my partials into gfind?
muzik wrote:The wiki mentions an 8-engine Cordership, but there isn't currently a page on one.
Does anyone have any examples?
x = 127, y = 127, rule = B3/S23
106bo$92b2o7b2o2bobo$92b3o6b4o3bo$92b2obobo7bo$95b2o10bob2o$107bobo$
108bo8b2o$117b2o6$117b2o$115b3ob2o4b2o$115bobob2o4b2o$113b2obo$106b2o
3bo$97b2o5bo3bobo$97b2o6b2obob3o$105bo3b4o$103bo$102bobo$101bo$85bobo
6bobo4bo$84bo9bobo4bobo$85bo2bo6bo6bo$87b3o5$77bo$76bobo2$76bo2bo$78b
2o$79bo13$59bobo$58bo$59bo2bo$61b3o5$51bo$50bobo2$50bo2bo$52b2o$53bo
13$33bobo$32bo$33bo2bo$35b3o5$25bo$24bobo2$24bo2bo$26b2o$27bo3$b3o$b3o
$2bo21b2o$3b2o21bo$4bo19b2o$3bo14b2o$18b2o3$b2o20b3o$b2o19bo3bo$2bo18b
o3bo$2bo15bo3bo$bobo15b2o$o16bobo$bo2b2o11bo$2bo3bo11b2o$4b2o14bo$4bo
13b3o$17bob2o$19b2o$16bo$16bo$14b2o$14bobo$6b2o5b3o$6b2o5bo$14b2o$14b
2o5$14b2o$14b2o!
muzik wrote:The wiki mentions an 8-engine Cordership, but there isn't currently a page on one.
Does anyone have any examples?
#P 0 0
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