ConwayLife.com

Congratulations! This is the second c/4 orthogonal ship to be synthesised. Those two c/4 spaceships are a little less lonely now, because I found a 152-glider synthesis for xq4_y2oo7t0t7ooz2qgx8t2rgr2t8xgq2z122166y5661221, which has already been noticed and slightly improved by users on the Discord...

xs12_3123c4go and xs12_8o6413z32 in 6G and 5G respectively:
I believe that means 12 in 7 is done!

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Here's a final step for a xq4_2534uof1u0u1fou4352zy087084048078zx3igi3x3igi3 synthesis, which is heavily based on a previous partial result by Kazyan : I was able to complete this into a 215 glider synthesis, which should make a good starting point for further reductions: x = 5324, y = 69, rule = B...

Here's a final step for a xq4_2534uof1u0u1fou4352zy087084048078zx3igi3x3igi3 synthesis, which is heavily based on a previous partial result by Kazyan : x = 127, y = 91, rule = B3/S23 23bo79bo$24b2o13bobo59b2o$23b2o15b2o60b2o$40bo$29bo3bo59bo3bo$30bo3b2o 55b2o3bo$28b3o2b2o57b2o2b3o$76bobo$76b2o$36bo4...

By now, a month or so into the new year, the usual plan is to have the posts in this thread stop coming in -- so that after a week or two goes by with no new nominations, we can set up a second thread and get the voting going. Apologies for messing a little with this plan, but I have a few suggesti...

Using the recent developments in 3c/7 technology, I constructed a psuedo-period p7 3c/7 rake. The true period is 84:

I supported the reaction with 8 slideguns: x = 973, y = 762, rule = B3/S23 61bo849bo$60bobo847bobo$60bobo847bobo$61bo849bo9$57bo857bo$56b3o855b3o $55bobobo853bobobo$55bobobo853bobobo$56b3o855b3o$57bo857bo$66bo839bo$ 67b2o835b2o$66b2o837b2o63$127bo717bo$128b2o713b2o$127b2o715b2o27$60bo 851bo$59b3o849...

I went ahead and completed the 56P6H1V0 gun:


One of the guns in the quadrant that wwei23 constructed was out of phase by 32 ticks, but fortunately that was easy to fix. There's plenty of room for optimization if someone wants to, but it might be better to leave that to a script.

Final step for a turtle synthesis:.. I found a method of constructing the base constellation which gives us this 241 glider synthesis: x = 5434, y = 82, rule = B3/S23 5414bo$5414bobo$5414b2o2b2o$5418bobo$4998bo413bo5bo$4263bobo730bobo 414b2o$4264b2o731b2o413b2o$4264bo$2927bo2503bo$2927bobo2499b2o$2...

Final step for a turtle synthesis: x = 46, y = 70, rule = B3/S23 29b2o$29b3o$28bob2o$28b3o$29bo$43bo$41b2o$42b2o3$19bo$18bo$18b3o4bo11b obo$24bo12b2o$7bo16b3o11bo$5bobo$6b2o2$o40bobo$b2o38b2o$2o40bo2$27b2o$ 27b2o$16bo$2bo12bobo2bo6b2o$3b2o9bo2b4o5bobo$2b2o11b2o8bo16bo$17b2o5bo 15b2o$11b3o3bo5bo17b2o...

LifeWiki says that there's no gun for any c/6 spaceship yet. I tried to make one using Goldtiger997's 296-glider synthesis (since the 294-glider synthesis only seems to have an incremental RLE version, and I didn't feel like changing it to a full synthesis RLE), and it's not that hard, just very te...

Using the barge crossing reaction I posted earlier, I made a relatively optimized stable barge crosser with the doubled-signal Fx77 chain method. Repeat time is 465 ticks: x = 1378, y = 1382, rule = B3/S23 359bo$358bobo$359bobo$360bobo$361bobo$362bobo$363bobo$364bobo$365bobo$ 366bobo$367bobo$368bobo...

If adding a minstrel to Sir Robin is also way too hard, what about simply changing a lightweight minstrel to a heavyweight minstrel or back? Lightweight to heavyweight can be done in at most 4 gliders ( Edit 2: it can be done in 3 gliders): x = 70, y = 101, rule = B3/S23 28b3o$28bo2bo$28bob2ob2o$27...

AMAZING!!! How, though? I see blinkers in the final seed, which would make the LLS still life method useless. (I've also tried similar things using JLS instead of LLS. It didn't work for me.) Thanks! I'll try to give an explanation for how I found the synthesis. Sorry for not replying earlier. Actu...

55P9H3V0-to-G with repeat time 156: x = 35, y = 83, rule = B3/S23 19b2o$19bobo$20b2o2$30b2o$30bo$28bobo$28b2o2$32b2o$31bobo$2b2o27bo$3bo 26b2o$3o29b2o$o29b2o2bo$31bob2o$31bo$30b2o$15b2o3b2o$12b2ob2o3b2ob2o$ 9b4o2bobobobo2b4o$8bo4bo2b2ob2o2bo4bo$9b2o6bobo6b2o$16bo3bo$16bobobo$ 17b3o$18bo$16bo3bo$16bo...

55P9H3V0 in 271 gliders, which is the first p9 spaceship to be synthesized. I've been working on this one for quite a while: x = 4380, y = 341, rule = B3/S23 4065bo$4065bobo$4065b2o23$4036bo$4037b2o6bo6bo$4036b2o5b2o7bobo$4044b 2o6b2o4$3724bo153bobo$2435bo1286b2o154b2o$2421bo13bobo1268bo16b2o154bo 3...

honestly i really wanna get into the pointless optimization game so that's the spammiest thing i'd be likely to do, hehe. There's still a huge supply of still-life and oscillator syntheses that can still be pointlessly optimised without too much difficulty. Just head over to the C1 census page on C...

I think it might be possible to synthesize the following pair of 44P5H2V0s with a pre-TL tagalong, now that we have a synthesis of 44P5H2V0: x = 35, y = 14, rule = B3/S23 4bo5bo13bo5bo$3b3o3b3o11b3o3b3o$2bo2bo3bo2bo9bo2bo3bo2bo$b3o7b3o7b3o7b 3o$2bobo5bobo9bobo5bobo$4b2o3b2o13b2o3b2o$o4bo3bo4bo5bo4bo...

Anyone want to contribute a move in the Optimization Game here, with a reasonable single-digit number of synchronized gliders? Here's 6 synchronized gliders which is reasonably good: x = 82, y = 78, rule = B3/S23 70bobo$70b2o$71bo5$81bo$79b2o$80b2o25$26b2o$26b2o2$35b2o6b2o$34bobo5bo bo$33bobo6b2o$3...

44P5H2V0 in 131 gliders, with plenty of potential for reduction: x = 2645, y = 77, rule = B3/S23 2588bo$2589b2o$2588b2o2$2614bo$2613bo$2613b3o2$2620bo$2585bo4bobo26bo 5bo$2586bo4b2o26b3o2bo$2584b3o4bo32b3o$1602bo105bo$211bo1364bobo23bobo 101bobo23bobo$209b2o1366b2o23b2o103b2o23b2o$210b2o1365bo155bo$...

I found a cutting and patching recipe for a sufficiently long barge which only needs gliders from one side of the barge, meaning that it shouldn't be too hard to create a stable barge crosser: x = 197, y = 189, rule = B3/S23 11bo$12bo7bo$10b3o6bobo$20bobo$21bobo$22bobo$23bobo$24bobo$25bobo$26bo bo$2...

I found a method of turning the crab into a boatstretcher that requires only one glider to trigger it, so we're now down to only 6 synchronized gliders: x = 84, y = 56, rule = LifeHistory 44.C$44.C.C$44.2C8$4.C.C$5.2C$5.C14.2A$20.A.A32.C$21.2A32.C.C$55.2C2$ 4.2A5.2A$3.A2.A3.A2.A$4.A.A4.A.A42.2A$5.A6...

I made a single-channel recipe to create a faraway block using the tubstretcher seed and the c/3 wickeater:

Already this has brought the recipe down from 20 synchronized gliders to only 12. Single digits, anyone? If there does happen to be a 1G seed for that 3-glider from-the side collision that makes the glider dragging the preblock, that would knock out four more gliders (with luck). I found a way that...