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I've been looking at some older syntheses of small spaceships using modern tools, and have found improvements. Once Catagolue finishes processing the readsynth queue, 30P5H2V0 will look like this: x = 543, y = 41, rule = B3/S23 532bo$530b2o$500bobo28b2o$501b2o$501bo5bobo$508b2o$399bo108bo$397bobo 6...

Intriguing result, but seemingly there is no way to get to that R, the best I found is: x = 72, y = 58, rule = LifeHistory 13$20.4B3.A$21.4B2.3A$22.B2AB4.A3.3B$23.BA2B2.2A2.6B$24.ABAB.13B7.D$ 25.2A2B2.11B3.2B5D$26.2B2.3BD12BD5BD$27.B3.2B2D11B2D2BDBD$31.B2D.15B 2DB$21.2A5.2B.3B2.17B$22.A5.2B2.2B.D14B...

I do not know if there is any interest in this, but it would be nice to also have glider synthesis for non-still-life with small populations. The obvious caveat is that many syntheses tend to have left over debris that takes a few more generation to clear, which makes defining the notion of "success...

Ez-Pez :D x = 38, y = 38, rule = B3/S23 2$18b2o$19bo$14bo2bo$14b8o$12b2o8bo$12bo2b2ob3obo$13b3obob2ob2o$21bo2b o$13b4o6b2o$12bo2bo2bo$12b2o2bo$16bo4bo$18bobobo$18b2o2bo$6b2o5bo3b3o 2bob2o$6bobo3bobo2bo2bobobo$8bo2bo2bo4b2obo2bo$7b2obob2o2b3o4bob3o$10b o3b4o4b2o4bo$10b2obo10bob2o$11bob5o2b5obo$9bobo4...

"glider supported" wave and spaceship (though I recall that the pi wave one has a simpler solution, but I cannot find it again) x = 1319, y = 673, rule = LifeHistory 44.BA1227.AB$43.B.BA1225.AB.B$44.3A1225.3A14$52.B1213.B$51.2BA1211.A 2B$51.ABA1211.ABA$52.2A1211.2A14$59.BA1197.AB$58.B.BA1195.AB.B$59...

Heavy maintenance oscillator: x = 303, y = 93, rule = LifeHistory 6$122.4B3.B.9B.B20.2A$122.4B.13B2ABA.B16.A.A$121.2A12B3A2B2A2BA2B16.A B66.2A20.B.9B.B3.4B$121.2A13B2A6BA2B2.B.9B2.2B66.A.A16.B.17B.4B$122.B .13B3A3B2A3B2A2BABA11B64.AB16.11B2A2BA4B2A2B2A$11.2A20.B.5BA3B.B3.4B 71.14BA3BA4B3ABA3BA9B2A64...

Very nice indeed, there is the obvious variant too that somewhat expose a weak spark, but I see no use to it sadly. x = 42, y = 39, rule = LifeHistory 3$21.2A$22.A$21.A$21.4A$24.A7.2A$19.3AB8.B.A$15.2A.A2.AB2.3B.3B.A.2A$ 13.A2.A.2A.3BA3B2A2B2A.A2.A$13.2A.A.5BA4B2A4B.A.2A$16.A3.3BA2BAB2A3B 2.A$16.2A2...

Here is some p60 MWSS gun. x = 73, y = 50, rule = LifeHistory 3$44.A5B$42.BABA6B$41.2A3BA7B2.B.3B2AB$8.A31.B2A3BA13BABA3B$6.3A31.B 2A3BA5B.6B3A5B$5.A32.2AB.BABA12B3A7B$5.2A30.A.AB3.A14B3A6B$37.A11.11B ABA3B.B2A$2.3A31.2A10.8B2.3B2AB3.BA.A$2.3A42.4B4.B14.A$.A3BA40.4B4.4B 12.2A$A5BA38.4B5.3A3B$BA3BAB3...

Silly queen bee p60 agar... x = 290, y = 134, rule = B3/S23 14$257b2o$257b2o2$271b2o$271b2o$271b2o$257b3o12bo$257b3o11bobo$256bo3b o10bobo$272bo$255b2o3b2o2$269b2o3b2o$269bobobobo$270b5o$255b3o13b3o$ 259b2o11bo$259b2o$260b2o$258bobo$258b2o3$253b2o3b2o9bobo$253b2o3b2o9b 2o$265bo4bo$255b3o8b2o$255b3o7...

... I just noticed that there is a problematic spark 8 tics after the initial interaction, it is even less likely to be possible to have a p8 reflector. The only option left is this: x = 44, y = 26, rule = LifeHistory 4$9.A19.A$8.A.A17.A.A$8.BA2B16.3AB$9.2B18.2A$9.3B17.3A$2.2A5.4B9.2A5. B2AB$4.A2.6B...

Here is a corrolary of that p6 reflector, a p42 glider loop. (aka barely under snark recovery p43 loop) x = 96, y = 96, rule = LifeHistory 78.2A3.2A$77.A2.A.A2.A$76.A2.2A.2A2.A$77.2A5.2A$79.5A$79.A.A.A$35.A 41.A.A.A.A.A$21.2A3.2A6.A.A39.A.A5.A.A$17.2A2.A4.A8.A39.A2.A.A.A.A.A$ 2.A4.2A3.2A4.A3.3A.A49....

Not sure what tool you use to do the search, but I would like to know if there is a p8 spark that would make this modified p6 reflector working: x = 149, y = 116, rule = LifeHistory 8$123.3B$124.2B$125.B3$109.2B2.3B$97.A9.6B.2B$58.B.B5.B16.2A3.2A6.A.A 8.7B.B$58.B20.2A2.A4.A7.BA2B6.9B$64.A4.2A3.2A4.A...

I never saw that edge gun before, where did you find it? It actually can work with a single pentadecathlon (and works with p60 guns). x = 90, y = 65, rule = LifeHistory 87.3B$88.2B$89.B3$73.2B2.3B$61.A9.6B.2B$22.B.B5.B16.2A3.2A6.A.A8.7B.B $22.B20.2A2.A4.A7.BA2B6.9B$28.A4.2A3.2A4.A3.3A.A8.2B8.9B$27.A...

Another way to get to have variable precision integers is to use c2 spark reactions on aligned still life, and have a mean to snipe run-away spaceships arbitrarily far. I do not know if there is a good repository for such reactions though... I put a few here, but a lot more would be needed to move d...

And here is the promised contraption. Bonus points to anyone figuring out what it does :P x = 1147, y = 367, rule = LifeHistory 379.D$380.D$381.D$382.D$383.D$384.D5.A$385.D2.2A$386.D2.2A$387.D$388. D$389.D$390.D$391.D622.A$392.D621.3A$393.D623.A$394.D621.2A$395.D$ 396.D$397.D620.3A$398.D619.3A$399.D...

Forward and backward rake gun, all in one. (featuring world's most akwardly placed Pentadecathlon) x = 708, y = 378, rule = LifeHistory 18$544.A$544.3A$547.A$546.2A4$537.A10.3A$536.A.A$548.A.A$547.5A$536. 3A7.2A3.2A$536.3A7.2A3.2A$537.A2$549.2A$537.A9.2A.2A$536.3A8.A2.A$ 536.3A11.A$547.A$548.2A$536....

I cannot say it is simpler, but this strategy allow larger address space within a smaller bounding box, so one can easily monitor the state of the memory without having to pan the around large still lifes to see is a block is present, or not. One can also store instructions with this too, so the pro...

Well, it is a prototype, so a few things needs to be fixed to finish it. That being said, it is essentially an improvement atop of a structure I made before which is static memory that stores the letter bitmaps in this lcd display (Loafer character display https://www.conwaylife.com/forums/viewtopic...

Well, if you request questions, I do have two. Why does it have be stable circuitry? Here some 64 byte RAM prototype: (which can be extended in size and bit depth +- trivially) x = 1937, y = 2353, rule = LifeHistory 108$251.AB3.BA$250.B2A3.2AB$251.2AB.B2A$251.BA3.AB57$311.AB3.BA$310.B 2A3.2AB$311.2A...

That's literally just the sidesnagger. kk, did not know that one, I suppose it is part of the list of eaters/still-life the search uses too, explaining it's occurence. Well there is a few interesting things but finding something ground breaking is not trivial. x = 195, y = 94, rule = LifeHistory 11...

Intriguiging stuff found in there: x = 27, y = 22, rule = B3/S23 4$16b2o$15bobo$16bo2$13bo$12bobo$11bo2bo3b2o$5bo6b2o4b2o$5b2o$4bobo2$ 13b2o$13b2o! in the same archive, can eat more than gliders: x = 37, y = 30, rule = B3/S23 $obo30b2o$b2o29bobo$bo31bo2$30bo$29bobo$28bo2bo3b2o$29b2o4b2o4$30b2o$ 30b2...

mmm, I found something I had in some other file, so I guess it was already known: x = 41, y = 34, rule = LifeHistory 28.4B$27.4B$26.4B$25.3AB$14.2A8.3BA$10.A.A2.A7.3BA3.A$8.3A.2A8.4B3.A. A$7.A4.B8.4B4.A.A$4.A2.4AB2AB5.4B4.2A.2A$4.3A3.A.2AB.2B.4B6.B$7.A4. 10B6.2AB2A3.2A$6.2AB4.9B6.2A.A.A.A.A$6.5B.12B...

This would be an NE0, and I can't seem to find any H-to-Gs with an NE0 output, so I guess this would be new. x = 56, y = 39, rule = LifeHistory 40.4B$39.4B$38.4B$37.4B$22.A13.4B$21.A.A11.4B$21.A.A10.4B$19.3A.2A8. 4B$18.A4.B8.A3B$15.A2.4AB2AB5.B2AB$15.3A3.A.2AB.2B.BABA$18.A4.10B$17. 2AB4.9B8.2C$17.5...

well well, answered my own challenge ^^ x = 120, y = 87, rule = B3/S23 8$86b6o$86bo5bo$86bo$87bo4bo$78b4o7b2o$78bo3bo$78bo$79bo2bo$87bo$86b3o $85b2ob2o$86b3o$87bo$86bo3$17bo64b2o12bo$6b2o7bo3bo38b2o21b2ob4o6b2o$ 5b4o5bo42bobo22b6o7b2o$4b2ob2o5bo4bo39bo23b4o$5b2o7b5o3$10bo$8b4o$7bob 5o$6b2o6bo91bo$7b...

Well, I cant say that is known. If it does not fit a given category, then there is no record if one found that before. Well, I think the idea is that stuff I would post (especially for this thread), does not need replies. Funny contraptions happens quite often: x = 19, y = 5, rule = LifeHistory 16.A...