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Elementary knightship

For discussion of specific patterns or specific families of patterns, both newly-discovered and well-known.

Re: Elementary knightship

Postby 77topaz » April 1st, 2018, 7:42 pm

For those who can't tell (and I can see several users were fooled, including Apple Bottom who added this thing to Sir Robin's LifeWiki page), that 87-glider synthesis is fake. It's a cleverly-constructed LifeViewer loop, which jumps back to the beginning right as the gliders converge on the seed, making it look as though the synthesis produced the ship.
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Re: Elementary knightship

Postby velcrorex » April 1st, 2018, 7:59 pm

It sounded too good to be true, but the lifeviewer seemed to be proof enough. I don't know enough about lifeviewer to know such things could be faked. I should really just stay off the internet on april 1.
-Josh Ball.
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Re: Elementary knightship

Postby 77topaz » April 1st, 2018, 8:00 pm

Yeah, just a few weeks ago dvgrn himself said finding a Sir Robin synthesis might take billions of times more search time than the ship itself required. :P
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Re: Elementary knightship

Postby christoph r. » April 2nd, 2018, 3:57 am

Three triggers

1: triggers a glider tangential in the same direction as Sir Robin.

x = 79, y = 31, rule = B3/S23
8bo$6bo2bo$4b2obo3bo$4bo2bo3bo$3o2bobo$o4bobobo$3bo2bo3bo$bobo6bo$2b2o
6bo2$4b2ob2o4bob4o11bo45bo$4b2ob2ob2ob3o2b2obob2o4bobo43bobo$4b2o4bo3b
obobo6b2o44b2o2bobo$4b3o5bo4bobo6bob2o2b2o36bobo3bo$6bo7bo5bo5bob3obo
36bobo$6b2o2bobob4ob2o3bo3b2o2b2o35b2o$11b2obobo10bo3b3o22bo$17bo2bo6b
ob3obo24bo10b2o$13b3o5bo3bo2bo3b2o9bo8b3o3bo10b2o$18b4o3bo5bo2bo4bob2o
bo5b3o5bo$21bo3bo5bo3b2o2b2o3b2o3b2ob2obobo$23bobo5bo4b2obo5bob2obo2bo
2b2o6bobo$24b2o11bo2bo4b2obobob2o2b2o5b2o2bo2b2o$32b2obobo3b2o2b2o3bob
2o2b2o5b2o2bo2b3o$32b2obobo4bobo3bo2b3o2bob2obo3b2obob4o3bo$37b2o4bo
13bo4bo2b3o5b3obo$38bobo4bo11bobo2bo3bob2o4bo3bo$41bobo2bo14b2o6bo3bo$
39b2o2b2o15b2o3b3o4b2o$43b3o18bo3bob3o$65b2obo3bo!


2: Opposite direction

x = 79, y = 31, rule = B3/S23
8bo$6bo2bo$4b2obo3bo$4bo2bo3bo$3o2bobo$o4bobobo$3bo2bo3bo$bobo6bo$2b2o
6bo2$4b2ob2o4bob4o11bo$4b2ob2ob2ob3o2b2obob2o4bobo$4b2o4bo3bobobo6b2o
42bo3b3o$4b3o5bo4bobo6bob2o2b2o34bobo$6bo7bo5bo5bob3obo35bo2bo$6b2o2bo
bob4ob2o3bo3b2o2b2o35b2o$11b2obobo10bo3b3o22bo$17bo2bo6bob3obo24bo10b
2o2b2o$13b3o5bo3bo2bo3b2o9bo8b3o3bo10b2o2b2o$18b4o3bo5bo2bo4bob2obo5b
3o5bo$21bo3bo5bo3b2o2b2o3b2o3b2ob2obobo$23bobo5bo4b2obo5bob2obo2bo2b2o
6bobo$24b2o11bo2bo4b2obobob2o2b2o5b2o2bo2b2o$32b2obobo3b2o2b2o3bob2o2b
2o5b2o2bo2b3o$32b2obobo4bobo3bo2b3o2bob2obo3b2obob4o3bo$37b2o4bo13bo4b
o2b3o5b3obo$38bobo4bo11bobo2bo3bob2o4bo3bo$41bobo2bo14b2o6bo3bo$39b2o
2b2o15b2o3b3o4b2o$43b3o18bo3bob3o$65b2obo3bo!


3: triggers a lwss.

x = 79, y = 31, rule = B3/S23
8bo$6bo2bo$4b2obo3bo$4bo2bo3bo$3o2bobo$o4bobobo$3bo2bo3bo$bobo6bo$2b2o
6bo2$4b2ob2o4bob4o11bo$4b2ob2ob2ob3o2b2obob2o4bobo$4b2o4bo3bobobo6b2o$
4b3o5bo4bobo6bob2o2b2o36b2o$6bo7bo5bo5bob3obo36bobo$6b2o2bobob4ob2o3bo
3b2o2b2o35b2o4bo$11b2obobo10bo3b3o22bo18bo$17bo2bo6bob3obo24bo10b2o4bo
$13b3o5bo3bo2bo3b2o9bo8b3o3bo10b2o$18b4o3bo5bo2bo4bob2obo5b3o5bo18b2o$
21bo3bo5bo3b2o2b2o3b2o3b2ob2obobo19b2o$23bobo5bo4b2obo5bob2obo2bo2b2o
6bobo$24b2o11bo2bo4b2obobob2o2b2o5b2o2bo2b2o$32b2obobo3b2o2b2o3bob2o2b
2o5b2o2bo2b3o$32b2obobo4bobo3bo2b3o2bob2obo3b2obob4o3bo$37b2o4bo13bo4b
o2b3o5b3obo$38bobo4bo11bobo2bo3bob2o4bo3bo$41bobo2bo14b2o6bo3bo$39b2o
2b2o15b2o3b3o4b2o$43b3o18bo3bob3o$65b2obo3bo!
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Re: Elementary knightship

Postby Apple Bottom » April 2nd, 2018, 5:56 am

77topaz wrote:For those who can't tell (and I can see several users were fooled, including Apple Bottom who added this thing to Sir Robin's LifeWiki page), that 87-glider synthesis is fake. It's a cleverly-constructed LifeViewer loop, which jumps back to the beginning right as the gliders converge on the seed, making it look as though the synthesis produced the ship.


I see. Clever -- I guess it was too good to be true in the end.

(I'd like to be able to say now that the LifeWiki edit was just intended as an April Fool's joke as well, but I can't claim to be that smart.)
If you speak, your speech must be better than your silence would have been. — Arabian proverb

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Re: Elementary knightship

Postby Goldtiger997 » April 2nd, 2018, 6:16 am

Apple Bottom wrote:I see. Clever -- I guess it was too good to be true in the end.

(I'd like to be able to say now that the LifeWiki edit was just intended as an April Fool's joke as well, but I can't claim to be that smart.)


I don't think a question of smartness, but more of whether you've had experience with the right things before.

I wasn't fooled because of three things:

- I've tried lots of spaceship syntheses myself with limited success, so I can appreciate how hard it is to synthesize a spaceship like Sir Robin

- The post kind of seemed out of character for dvgrn, as he is usually "very impressed with spaceship syntheses" (his own words paraphrased).

-I was previously fooled by this liveviewer loop

My congratulations to dvgrn on such a successful April Fools joke! Much better than anything I've ever done.
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Re: Elementary knightship

Postby christoph r. » April 2nd, 2018, 7:50 am

Trigger that make a glider moving away in the "right ancle" A block remains.
In this case you need a little fuse to leed away the reaction from the knightship. (2 stairs before is enough.)

x = 98, y = 41, rule = B3/S23
96b2o$92b2obobo$92b2ob2o3$92b2ob2o$87b2o3b2ob2o$87b2o2$87b2o2b2o$83b2o
2b2o2b2o$5b4o74b2o$4b2ob2obo$bob2o2b2o$2o2b2obo75b2ob2o$obob2ob2o69b2o
3b2ob2o$2bobobo2b2o67b2o$3b2o4b3o$2b2o74b2o2b2o$3b2o11b2o56b2o2b2o2b2o
$4b2ob3o2b2ob5o10bo43b2o$3bo3b2ob4o5bo4b2o4bo$3bo3bob2obobobo3bo3b7obo
$4bobo6bobob3o6bobob4o40b2ob2o$11bo2bo2bo2bo4bo4bo38b2o3b2ob2o$6b2o4bo
bob2ob2o48b2o$11b2obo3b3o6bo6bo$12bo3bo9b2ob2o3bo18bo3bo11b2o2b2o$14bo
3bo2bo4bob2o3b2o7b2o8b2o3b3o9b2o2b2o$14bo4bob2ob3o4bob3o3bob2ob2o3b2o
6b2o$19bob2o2b2o3b3o2b3obobob4obo4b2o2b2o$25b2o8bobobo7b2obo4bo2bo4b3o
$24b2o6bo4bo2b2o2bo3bobo3b2o2bo7b2o2bobo$32b2o3b2o2b4obo3bo3b2o6b2o3b
2o4bo$32b2o3bo3b2ob2o5bobo2bobo3b2o4b3o5bo$36b4o3b2o7bo3b2ob4o7b2o3b4o
$37b3o2bobo13bo3b2ob2ob2o5bo$41b3obo16bo2bo3bo2b3o$40bo19b3o2b6o2bo$
43bobo18bo3b2o$44bo20bobobo2bo!
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Re: Elementary knightship

Postby Majestas32 » April 2nd, 2018, 9:42 am

*if somebody actually makes a synthesis out of this*
I type all my RLE's by hand. Golly is for wimps.
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Re: Elementary knightship

Postby christoph r. » April 2nd, 2018, 2:38 pm

Another 3 trigger-tries-Using the fuse-

1: reverse

x = 98, y = 43, rule = B3/S23
89b2o$89bobo$90bobo3b2o$91bobobobo$92b2ob2o3$92b2ob2o$87b2o3b2ob2o$87b
2o2$87b2o2b2o$83b2o2b2o2b2o$5b4o74b2o$4b2ob2obo$bob2o2b2o$2o2b2obo75b
2ob2o$obob2ob2o69b2o3b2ob2o$2bobobo2b2o67b2o$3b2o4b3o$2b2o74b2o2b2o$3b
2o11b2o56b2o2b2o2b2o$4b2ob3o2b2ob5o10bo43b2o$3bo3b2ob4o5bo4b2o4bo$3bo
3bob2obobobo3bo3b7obo$4bobo6bobob3o6bobob4o40b2ob2o$11bo2bo2bo2bo4bo4b
o38b2o3b2ob2o$6b2o4bobob2ob2o48b2o$11b2obo3b3o6bo6bo$12bo3bo9b2ob2o3bo
18bo3bo11b2o2b2o$14bo3bo2bo4bob2o3b2o7b2o8b2o3b3o9b2o2b2o$14bo4bob2ob
3o4bob3o3bob2ob2o3b2o6b2o$19bob2o2b2o3b3o2b3obobob4obo4b2o2b2o$25b2o8b
obobo7b2obo4bo2bo4b3o$24b2o6bo4bo2b2o2bo3bobo3b2o2bo7b2o2bobo$32b2o3b
2o2b4obo3bo3b2o6b2o3b2o4bo$32b2o3bo3b2ob2o5bobo2bobo3b2o4b3o5bo$36b4o
3b2o7bo3b2ob4o7b2o3b4o$37b3o2bobo13bo3b2ob2ob2o5bo$41b3obo16bo2bo3bo2b
3o$40bo19b3o2b6o2bo$43bobo18bo3b2o$44bo20bobobo2bo!


2: trigger double "gun"

x = 103, y = 42, rule = B3/S23
87b2ob2o$87b2obo5b2o$93bobobo$92b2ob2o4b2o$101b2o2$92b2ob2o$87b2o3b2ob
2o$87b2o2$87b2o2b2o$6b2o75b2o2b2o2b2o$4b2o2b2o73b2o$3bo$4o5bo$o82b2ob
2o$obo4b3o68b2o3b2ob2o$b2o3b2o3bo66b2o$4b2o3bobo$2bo7bo67b2o2b2o$2bo2b
o2bo6bo58b2o2b2o2b2o$5b3ob2o2b3o3bo54b2o$3bo15b2o3bo2b2obo$3b2ob2ob2o
3b4o2bo3bo3bo3b2o$10b4obob4o3bo3bo3b2o40b2ob2o$5b3o4bobo5bo8b2obo36b2o
3b2ob2o$12bobob2o3bo47b2o$11b2o3bobobo5b3o$11b2o2bob2obo5bo2b2o3b2o16b
2o3bo11b2o2b2o$13bobo4b3o5b2o2bo8b4o7b2o2bo2bo9b2o2b2o$18b2o3b2o4bobo
6bo2bo4bo2bo2bobobo$21b3o3bo2b4o3bobobobo2bobobo3bobo2bo4bo$32bo2bobob
ob3o2bobo4bob2ob2o4b3o$24b3o5b2o3bob3o2b2o2bob2o4bo5bo2b4o$31bo4b3o10b
3obo2b2o4b2o2bo3b2o$32b2o5b3o9b4obob3o6b2ob2o3b2o$36bo2b3o10bo3bo2b2o
3bo2bo3bo3bobo$36bo2b3o3bo11b4o2b4ob2ob3obobo$38b7o27b3o$41bobo17b7o2b
ob3o$44bo16bo2bo$44bo24bo!


3: trigger-tree
You can build a tree with as many launching pads at any direction you want.

x = 98, y = 41, rule = B3/S23
96b2o$93bobobo$92b2ob2o2$67b2o$67bobobo20b2ob2o$68b2ob2o14b2o3b2ob2o$
87b2o2$68b2ob2o14b2o2b2o$6b2o60b2ob2o3b2o5b2o2b2o2b2o$4b2o2b2o66b2o5b
2o$3bo$4o5bo62b2o2b2o$o71b2o2bo6b2ob2o$obo4b3o69bo3b2ob2o$b2o3b2o3bo
66b2o$4b2o3bobo$2bo7bo67b2o2b2o$2bo2bo2bo6bo58b2o2b2o2b2o$5b3ob2o2b3o
3bo54b2o$3bo15b2o3bo2b2obo$3b2ob2ob2o3b4o2bo3bo3bo3b2o$10b4obob4o3bo3b
o3b2o40b2ob2o$5b3o4bobo5bo8b2obo36b2o3b2ob2o$12bobob2o3bo47b2o$11b2o3b
obobo5b3o$11b2o2bob2obo5bo2b2o3b2o16b2o3bo11b2o2b2o$13bobo4b3o5b2o2bo
8b4o7b2o2bo2bo9b2o2b2o$18b2o3b2o4bobo6bo2bo4bo2bo2bobobo$21b3o3bo2b4o
3bobobobo2bobobo3bobo2bo4bo$32bo2bobobob3o2bobo4bob2ob2o4b3o$24b3o5b2o
3bob3o2b2o2bob2o4bo5bo2b4o$31bo4b3o10b3obo2b2o4b2o2bo3b2o$32b2o5b3o9b
4obob3o6b2ob2o3b2o$36bo2b3o10bo3bo2b2o3bo2bo3bo3bobo$36bo2b3o3bo11b4o
2b4ob2ob3obobo$38b7o27b3o$41bobo17b7o2bob3o$44bo16bo2bo$44bo24bo!
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