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sideways...

Yes and I didn't notice the truncation! The real issue always was and still is the upper right corner.

Hartmut

Just a short update on quarter max. This is how far I could seperate the different sub tasks. Still no idea on the last step: x = 289, y = 449, rule = B3/S23 61$209bo7b2o$209bobo6bo$209bob2o5b2o$209bobobo$209bobob2o$209bobo3bo$ 209bo$209bob2ob2o$209bo$209bo2bo3b3o$209bobo6bo$209bob2o$200bo4b2o2bob o...

These three ships have subtle differences, but the first and third are glide-symmetrical, and the middle is asymmetric: x = 114, y = 28, rule = B3/S23 4b2obo7b3o30b2obo7b3o29b2obo7b3o$4bo3bo6bo32bo3bo6bo31bo3bo6bo$4bo4bo 7bo7b2o21bo4bo7bo7b2o20bo4bo7bo7b2o$6b2o7bobo4b2obo24b2o7bobo4b2obo23b 2o7bobo...

What I see is glide symmetric along the diagonal (after 4 generations you get a mirror image)

The important thing is the sqllite database that stores not only RLEs, but also timing and displacement information. The database is described in more detail in various forum posts. https://www.conwaylife.com/forums/viewtopic.php?f=9&t=1267&p=15403&hilit=build+helix#p10506 The script then queries th...

A bit picky, but couldn‘t we move the discussion on tools to the scripts forum?

Those were the times, when the world was still young and we tried out WLS...

By then, we didn‘t have the Forums, but only a closed mailing list.

Also, the computational power required for any method that is cleverer than a brute force method should be bounded by the computational power for the brute force method, which is linear as a function of period. Here again, in theory you're absolutely right. But in practice you aren't actually sugge...

Dear Weiwei, 1) you'll hardly find too much spaceships in the 10x10 box. 2) You'll quickly get into combinatorial explosion if you increase searchspace 3) Current search programs thus try to restrict the search space by making clever use of the restriction that the pattern will repeat (with an offse...

Do you start a new approach to search toroidal random soups? Nobody has done that since Achim Flammenkamp”s census quite a few years back.

Could we use modified apgsearch technology for this exercise?

the loafer has slightly more appearances in catagolue and a slightly cheaper glider synthesis. This suggests that a gliderless gun might be easier. While the loafer has more appearances in C1/G1, x66 has more total appearances. Constructing a spaceship with D2 symmetry, especially D2 gutter symmetr...

Just for a bit more of handwaving: the loafer has slightly more appearances in catagolue and a slightly cheaper glider synthesis. This suggests that a gliderless gun might be easier. Your argument of just creating enough interest and then joint efforts will always get a solution is not exactly what ...

As a proof of concept, could you provide a gliderless loafer gun? Or at least one using less gliders and some oscillators?

My 50 cent: While the post cited above shows how a clean glider can be synthesized through loafers, and thus all pattern that can be glider constructed can also be loafer constructed, this doesn’t solve the question how to do this efficiently. Thus I cannot see why this is not a valid topic for the ...

Coming back to the cordership topic: Coming from low period searches, there should be plenty of small tagalongs for corderships. Do we have them and they are just not called tagalongs? I can’t think of an efficient search method in this period range. So they will stay undiscovered for the time being.

Just wanted to mention that a new category yl72 has turned up in G1. The pattern consists of two block laying switch engines that are in sync such that the period halves from 144 to 72.

A well known c205 against the grain wick can be terminated on the right. Not really useful but sort of a first result: x = 86, y = 97, rule = B3/S23 10$40bo2b2o2b2o9bobob2o3b3o$9b31o2bo2bo2b2o2bo2b2obob2o6b2o$40b3o2b2o 2b3o3b2o3b2o4bobo$9b31o3b2o7bo4bobo4b2o$40b9o2bo11bo5b2o$9b31o11bo11b 5o3bo$40b2o...

:-/

Didn't see the forest among the trees.

Here is the 2c/5 wick featured in the arbitrary wide grey ship shown in its long form: x = 1517, y = 163, rule = B3/S23 38$41b2obo$41b5o$40bo3b2o$41b2o$41b2o12b2o$36b4o81b2o22bo22bo3bo19b2o 46b2o22bo22bo3bo19b2o46b2o22bo22bo3bo19b2o46b2o22bo22bo3bo19b2o46b2o 22bo22bo3bo19b2o46b2o22bo22bo3bo19b2o46b2...

Ther is a natural yl96 in G1:

http://catagolue.appspot.com/object/yl9 ... 5e09/b3s23

Here is an unfinished c/5 grey ship part to switch from greystretcher domain to normal c/5 grey ship components: x = 209, y = 158, rule = B3/S23 30$91b5o$94bobo$90bo6bo5b5o$90bo3bo11bobo$91b2obo7bo6bo5b5o$94bob2o4bo 3bo11bobo$92b2o9b2obo7bo6bo5b5o$93bo12bob2o4bo3bo11bobo$91b2o11b2o9b2o bo7bo6bo5b5o$...

You‘re right, pasting error... I just wanted to get that thing out quickly, as I won‘t be able to spend much time on spaceship searching for the next two weeks. Maybe you could spend some time on c/6 grey ship components? You seem to succeed where I fail. Also 2c/5 and 2c/6 against the grain are sti...

If I'd know an appropriate short wide c/6 spaceship with a domino spark, then this couls be a c/6 grey ship component: x = 184, y = 63, rule = B3/S23 6$54b2o83b2o2$38bobo11b3o12bobo11b2o40bobo11b3o12bobo$9b4o11b2o27b2o 11b2o2bo10b3o10b4o11b2o27b2o11b2o2bo$12bo9bob2obo8b3o3bo7b3ob3o7b3o12b o3b2o12bo9...

Could there be a (3,2)c/6 oblique moving bubble? Does a rectangular space clearer exist?