User:AforAmpere/Day&Night
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This page is an equivalent to the Spaceship Search Status Page for Day & Night (B3678/S34678) instead of Life.
Known spaceships by width
Width is measured laterally; diagonal spaceships' widths are measured in half-diagonals, knightwises in third-knight-moves, etc.
| Velocity | Asymmetric | Symmetric | Gutter | Glide-symmetric | ||
|---|---|---|---|---|---|---|
| odd | even | odd | even | |||
| (1,0)c/2 | 8 | 9 | 10 | |||
| (1,0)c/3 | 8 | 9 | 10 | |||
| (1,1)c/3 | 9 | 9 | 21 | |||
| 13[n 1] | ||||||
| (1,0)c/4 | 9[n 2] | 13 | 12[2] | |||
| (1,1)c/4 | 8 | 11 | 19 | 8[n 3] | ||
| (2,0)c/4 | 7 | 7 | 8 | 7 | 8 | |
| (1,0)c/5 | 9[n 4] | 13[n 5] | 12[n 6] | |||
| (1,1)c/5 | 9[n 7] | 11[n 8] | 21 | |||
| (2,0)c/5 | 15[5] | 19[n 9] | 24[n 10] | |||
| (2,1)c/5 | w ≤ 45 | |||||
| (1,0)c/6 | 9 | 13[n 11] | 14[n 12] | |||
| (1,1)c/6 | 12[n 13] | 15 | 17 | 14 | ||
| (2,0)c/6 | 8[n 14] | 9[n 15] | 10[n 16] | 9[n 17] | 10 | |
| (2,1)c/6 | w ≤ 45 | |||||
| (2,2)c/6 | 9 | 13 | 21 | |||
| (3,0)c/6 | 9 | 9[n 18] | 10[n 19] | |||
| (1,0)c/7 | 9 | 13 | 12[n 20] | |||
| (1,1)c/7 | 9 | 15[10] | 15 | |||
| (2,0)c/7 | 10 | 17[n 21] | 16 | |||
| (2,2)c/7 | 16 (llsss-ng)[n 22] | 23[n 23] | 21 | |||
| (3,0)c/7 | 12 14 (llsss-ng)[n 24] |
23[n 25] | 20[n 26] | |||
| (1,0)c/8 | 7 | 11 | 14[n 27] | |||
| (1,1)c/8 | 9[n 28] | 15[n 29] | 13 | 14[n 30] | ||
| (2,0)c/8 | 7 | 11 | 12[n 31] | 11 | 10 | |
| (3,0)c/8 | 10 | 19 | 20 | |||
| (4,0)c/8 | 8 | 9[n 32] | 12[n 33] | 9 | 10[n 34] | |
| (1,0)c/9 | 6 | 13 | 14 | |||
| (2,0)c/9 | 8 | 15 | 14 | |||
| (3,0)c/9 | 7 | 11 | 10 | |||
| (4,0)c/9 | 11 | 19 | 20 | |||
| (1,0)c/10 | 6 | 11 | 12 | |||
| (2,0)c/10 | 6 | 9 | 10 | 7 | 8 | |
| (3,0)c/10 | 8 | 13 | 14 | |||
| (4,0)c/10 | 8 | 15 | 16 | 13 | 14 | |
| (5,0)c/10 | 8 | 9[n 35] | 12 | |||
| (1,0)c/11 | 6 | 9 | 12 | |||
| (6,0)c/12 | 6 | 9 | 10 | 9 | 10 | |
| (2,0)c/14 | 5 | 5 | 8 | |||
| 5 | ||||||
non-orthogonal ships by orthogonal width and height
(width and height defined as being along the axis through which they move most slowly and quickly respectively)
| Velocity | Asymmetric | Symmetric | Glide | |
|---|---|---|---|---|
| width | height | |||
| (1,1)c/3 | 6 | 6 | ||
| (1,1)c/4 | 8 | 11 | 8 | |
| (1,1)c/5 | 9[n 36] | 16[n 37] | ||
| (2,1)c/5 | 16[n 38] | 11 | ||
| (1,1)c/6 | 9[n 39] < w ≤ 14 | 14 | 9 | |
| (2,1)c/6 | 12[18] | 7 | ||
| (2,1)c/7 | 10 | |||
| (3,1)c/7 | 12 | |||
| (2,1)c/8 | 8 | |||
| (3,1)c/8 | 10 | |||
| (3,1)c/9 | 9 | |||
| (4,1)c/9 | 10 | |||
| (4,1)c/10 | 9 | |||
| (click above to open LifeViewer) |
Known spaceships by height
measured perpendicularly to travel direction; lower bounds determined by rlifesrc
| Velocity | Asymmetric | Symmetric | Glide-symmetric | ||
|---|---|---|---|---|---|
| odd | even | odd | even | ||
| (1,0)c/2 | 5 | 4 < h ≤ 6 | 4 < h ≤ 6 | ||
| (1,0)c/3 | 7[n 40] | 7 | 7 | ||
| (1,0)c/4 | 7[n 41] | 8 | 8[19] | ||
| (1,1)c/4 | 7 | 7 | 8 | ||
| (1,0)c/5 | 6 | 7 | 6 | ||
| (2,0)c/5 | 10[n 42] | 10 | 10 | ||
| (1,1)c/5 | 9 | 9 | |||
| (2,0)c/7 | 6 | 6 | 6 | ||
| (3,0)c/7 | 7 | 7 | 7 | ||
| (2,2)c/7 | 9 | 9 | |||
B1e2cn3acjkr4cny5einqy6ei7c/S01e2-ei3acjkr4-ejr5einqy6-cn7c8 (known chequercrawlers by width)
lower bounds found with qfind for orthogonals and rlifesrc for diagonals unless otherwise specified
| Velocity | Asymmetric | Symmetric | Glide-symmetric | ||
|---|---|---|---|---|---|
| odd | even | odd | even | ||
| (1,0)c/1[20] | 7 | 13 | 14 | ||
| (1,0)c/2[20] | 13[n 43] | 25 | 24 | ||
| (1,0)c/3 | 10 | 19 | 20 | ||
| (1,1)c/3 | 19 | 25[n 44] | |||
| (1,0)c/4 | 10 | 19 | 20 | ||
| (2,0)c/4 | 10 | 19 | 20 | 15 | 16 |
| (1,1)c/4 | 17 18 (LLSSS) |
23[n 45] | 28 | ||
| (1,1)c/5 | 15 | 21 | |||
| (1,1)c/6 | 13 | 19 | 18 | ||
| (2,1)c/6 | 16 (ikpx2) | ||||
| (1,1)c/8 | 9 | ||||
| (3,1)c/8 | 16 (ikpx2) | ||||
| (1,0)c/11 | 6 | 11 | 12 | ||
Notes
- ↑ 51 cells, see also cool 55-cell w20a from [1] and the results by orthogonal width
- ↑ 97 cells; shortest w10a is 46 cells
- ↑ 61 cells; at w10glide is a 29-cell one, then at w12glide is a 24-cell one (which LLSSS proves is the smallest possible by minpop)
- ↑ also supports a tagalong
- ↑ 105 cells, first found in [3]
is also the shortest at w15o, but beaten at w17o by the shortest possible c/5 (40 cells) - ↑ 406 cells; also known as the totem pole; first known was longer variant found in [2]
shortest at w14e is 116 cells, at w16e is 58 cells - ↑ 83 cells, per gfind it is the unique w9a and per LLSSS it is also the shortest w10a; none at w11a in 21 × 21, a 104-cell one in 21 × 22
- ↑ 134 cells; smallest known symmetrical was formerly an 87-cell w17s from [4] until the discovery of the 46-cell unique 16 × 16 which happens to be w25s (shown in #non-orthogonal ships by orthogonal width and height)
- ↑ 365 cells; shortest w21o is 310, shortest w23o is 254, shortest w25o is 308
- ↑ first found in [6], 5008s to verify shortestness via LLSSS
276 cells, [7] found the shortest w26e (as verified (in 5416s and 37.43GB RAM) by LLSSS) which is 164 cells - ↑ shortest w15o is 81 cells, second-shortest is 93 (however its frontend has only one engine instead of two and its maxpop is only 1 greater)
- ↑ 250 cells; shortest w16e is 78
- ↑ 11 was disproven in [8]; after discovering it unexpectedly (two copies packed tightly into 32 × 32 bounding box), it took 95019s in rlifesrc to show that it is the unique w13a (as well as 12a) that can fit in a 18 × 18 bounding box
- ↑ 53 cells with a glide-symmetric p6 backend; AforAmpere originally included a 70-cell one with a fully asymmetric p6 backend; is shortest and smallest at w9 also
- ↑ 147 cells, shortest w11o is 115, shortest w13o is 149
- ↑ 110 cells, shortest w12e is 92, at w14e there are (in increasing order of height) 114, 108, 86
- ↑ 130 cells, shortest w11glide is 136
- ↑ 170 cells, shortest w11o is 64, shortest w13o is 92
- ↑ 56 cells, also shortest w12e, shortest w14e is 52
see also this more interesting w10e - ↑ found in [9], 380 cells; note shortest w14e is 174
- ↑ 1061 cells; shortest w19o is 273
- ↑ took a few weeks on-and-off and 206975773557 bytes of backups, longest partial (flattened width 180, population 385)
previously, via rlifesrc: 537s for 13, 47573s for 15, longest partial:
........
.........
..........
..oooo.oo..
.o.oo.ooo...
.ooo.....oo..
.oo.ooo.o..oo.
.o..ooooooo.oo.
.....o.oo..o...
......oo.o.ooo.
....oo.oo..o.o.
...ooooooo.oo..
....o.o.ooooo..
...ooooooooo...
..oo...ooooo...
.......ooo.o...
....o.ooooooo..
.oo.oooooo.o...
.o.o.ooooooo...
.oo.ooooo..oooo
.oooooo........
.oooooo..oo.o..
oooo.oooo....o.
...o.ooo..oo...
..oooo..ooooo.o
ooo..o.o.oo.o.o
.oooo.ooo..ooo.
....ooo.ooo...o
.oooooo.ooooo.o
..o.oo.oo..oo.o
...ooo.ooo?????
.oooo.o.o????
.o.o..oo???
....o.o??
.oo????
.????
??? - ↑ w21s per rlifesrc,[8] formerly 19 with gfind[11]
w23s partial (with rlifesrc also; 17498s):
..oo.oooo...
.ooo.oooooo..
oooo.o.ooo..o.
ooo.o.ooooo.o..
...o.ooo.oooo...
ooo.o.o.ooo.o....
oo.ooo.oooo.......
ooooo.oo...o...o...
oooo.oo..oo.oo.oo...
.oooooo.ooo..oooo....
.o.oooo.oo.oo.........
....o..o..o.oo.ooo.....
.oooo..o.oooooo.o......
......oo.oooo...o......
......o..oooo..........
...ooo.oo.o..ooo.oo....
...oo.o....o....oo.....
.....oo..o.ooo..ooo....
......o.o.o.o.oo.o.....
.......o.ooo.oo.ooo....
.............o..oo.....
.....oo.oo..o....ooooo.
....ooooooo..o..ooo.o..
.....o......ooo.o.ooo..
....ooo..oo...o.oo.oo..
.....oo..o..o.oo..ooo..
....oo..o.o..oo........
.....oo.o..oo.o.oo.o...
....ooo.ooooo.oo.oo....
...oo.ooo.oooo..oo.....
..o.oo..o.oooo.ooooo...
.ooo....oooo..o.oooo...
..ooo.oo.o..o..ooo.o...
..oo.o....o.oooo..o..o.
..o..oooo.o.o.o....ooo.
...oooo..ooo....o.ooo..
.....oooo..o.o..oo..oo.
....ooooo..oo..o....o??
...ooo...ooo..oo.oo.??
...o.......oo..o..o??
...oo.o...o.ooo..o??
......ooo.oo.o..o??
...ooo.o.o....????
.ooo...ooo.o.????
.oo..o.....?????
..o.o...???????
.oo.ooo???????
.????????????
???????????? - ↑ longest partials were this thing and this thing, both 59 cells long
- ↑ 1013 cells, note there is a 676-cell w25o from [12]
there is also a wickstretcher (with a spatial-period-3 wick) at w23o, from [8] - ↑ 584 cells, found in [13]; meanwhile, shortest w22e is 316 cells, the smallest known of any symmetry
- ↑ 190 cells, found in [14]; first found was a 980-cell much longer w14e from [6] two days earlier
- ↑ proven with rlifesrc in 7 hours; longest partial:
4ob2o$3o2bo$obo$2bo4bo$4bobob2o$5bobobo$5b2obobobo$10b3o$10b4o$11b2o$10bo$10b3o$11bo2bobo$13b2o2b2o$14bo2bo$18bobo$2
0bo$18b4o$19bob2o$19b2obo$20bo3b3o$21b5o$21bobo3bo$21b3o3bo$25bob4o$26b5o$25bo2b4o$26b2o2b2o$27b2obo$27b4o$30bo$29bo!;
before this, the entry said 6, which is slightly strengthened by ikpx2 to exclude logical width 6 in its floating rows metric - ↑ w13s disproof took 1459s; see 288-cell largest partial
none at w15s in 40 × 40, per 177785s search
41 × 41; see also w15s in 43 × 43 which has the same front- and backend but phaseshifted - ↑ 146 cellls; unique smallest that fits in 33 × 33 during one logical period (two phase-shifts were the only ones found in 56364s in rlifesrc)
the first (841 cells; also at w14glide) was found by LuveelVoom in [15]; this one was very easy for Luveel to have found were he not to have delved so greedily and used a longer length to increase the plausibility of terminating - ↑ has a small p8 tagalong
is 340 cells, at w14e there is a 292-cell spaceship[16] - ↑ minpop 224 cells, w11o is 150
- ↑ there is a shorter one at w14e that is full of antispace and so is higher-population, found in [17]
- ↑ LuveelVoom found that it supports this p4 tagalong
- ↑ 164 cells, at w11o the smallest is 97 cells with the same p10 backend
- ↑ at w10, there is this thing fitting in 10 × 30; none in 10 × 25 per 288564s exhaustive search
- ↑ unique!
13 disproven in 1147s in rlifesrc, 14 in 4994s, 15 in 37555s, 16's only result found in 206687s and exhausted at 259656s - ↑ it is easy to verify thinnestness; see longest partial at w14 (LLSSS, 378s), longest at w15 (LLSSS, 7901s)
- ↑ see largest (103-cell) partial at w8 (from LuveelVoom with rlifesrc), largest (221-cell) partial at w9 (determined by me with rlifesrc, in 353676s)
- ↑ at h=8, w>14
- ↑ widest partial
oooo.......o.......................ooo.....oo.....oo...?
.oo.ooo..oo.oo.....................oo.....oooo....ooooo?
.o.ooo.o..oo.o.oo.oooo.......ooo..ooo.ooo..o.oo.ooooo..?
....o.oooo..oooo..o..o..ooooooo.o.oo.ooo....o...ooooo..?
.....oo...oo.ooo.......oo.ooo..oo.....ooo.o...o....oo...
.............o............o.o.o.......o.....o.....o..o..
........oo...........................................oo.
the odd one is the only h=8 with w≤20 - ↑ rlifesrc search took 440158s; see largest partial
- ↑ first discovered was a w23a which is also height-11, found in [21]
- ↑ 618 cells; the other two w25s's within a 62 × 62 bounding box are internal variations (622 and 636 cells respectively)
for w27s, a 413-cell 41 × 41 is the only one in a 42 × 42 bounding box
the first two known were a 669-cell w25s and a 761-cell w27s from [22] - ↑ none at w25s in 44 × 44; there are wickstretchers (ie. tunnel-borers) so a spaceship is probable
back-to-front w25s search finds nothing in 68401s
References
- ↑ Saka (November 20, 2015). Re: Day & Night (B3678/S34678) , in which the first(?) known asymmetrical c/3d was found
- ↑ 2.0 2.1 Saka (February 10, 2017). Re: Day & Night (B3678/S34678) , in which the thinnest even c/4 and c/5 (longer variant of totem pole) were found
- ↑ Sphenocorona (February 26, 2014). Re: Day & Night (B3678/S34678) , in which the first c/5 was discovered at w13o
- ↑ C_R_116 (February 12, 2023). Re: Day & Night (B3678/S34678) , in which the former smallest known symmetric c/5d was found
- ↑ AforAmpere (February 20, 2020). Re: Day & Night (B3678/S34678) , in which the shortest 2c/5 at the thinnest width (w15a) was found
- ↑ 6.0 6.1 AforAmpere (December 12, 2017). Re: Day & Night (B3678/S34678) , in which the shortest w24e 2c/5 was found as well as the first c/8 (which was decidedly not shortest)
- ↑ 2718281828 (March 27, 2019). Re: Day & Night (B3678/S34678) , in which the shortest 2c/5 (at w26e and 164 cells) was found
- ↑ 8.0 8.1 8.2 DroneBetter (August 26, 2024). Re: Day & Night (B3678/S34678) , in which the existence of a 2c/7d at w21s and c/6d at w11a were disproven with rlifesrc, and Darcy Li's 3c/7 w23o search's wickstretcher and complete spaceship were exhibited
- ↑ velcrorex (November 12, 2016). Re: Day & Night (B3678/S34678) , in which the first and smallest w12e c/7 were respectively found
- ↑ velcrorex (June 16, 2015). Re: Day & Night (B3678/S34678) , in which the first c/7d was found at w15s
- ↑ praosylen (March 26, 2019). Re: Day & Night (B3678/S34678) , in which the existence of a 2c/7d at w19s was disproven with gfind
- ↑ May13 (February 10, 2023). Re: Day & Night (B3678/S34678) , in which various w25o 3c/7s were found (minimal minpop 676 cells)
- ↑ velcrorex (November 23, 2015). Re: Day & Night (B3678/S34678) , in which the first 3c/7 was found at w20e
- ↑ Sokwe (December 14, 2017). Re: Day & Night (B3678/S34678) , in which the shortest w14e c/8 (also the smallest known in general) was found
- ↑ LuveelVoom (May 31, 2025). Message in #naturalistic on the Conwaylife Lounge Discord server , which found the first c/8d (but laughably far from the minimal... yes indeed)
- ↑ velcrorex (July 2, 2015). Re: Day & Night (B3678/S34678) , in which a 292-cell w14e 2c/8 was discovered
- ↑ velcrorex (December 1, 2016). Re: Day & Night (B3678/S34678) , in which the first(?) 4c/8 was found
- ↑ AforAmpere (January 22, 2020). Re: Day & Night (B3678/S34678) , in which the first (2,1)c/6 was found at the minimum orthogonal width of 12
- ↑ AforAmpere (April 2, 2018). Re: Day & Night (B3678/S34678) , in which a height-8 even-symmetric c/4 was found (not sure of minimality)
- ↑ 20.0 20.1 LaundryPizza03 (March 11, 2025). Re: Day & Night (B3678/S34678) , in which the thinnest c and c/2 chequercrawlers at each symmetry were found
- ↑ LaundryPizza03 (March 10, 2025). Re: Day & Night (B3678/S34678) , in which the first (and shortest) c/2 chequercrawler was found
- ↑ wildmyron (June 14, 2018). Re: Day & Night (B3678/S34678) , in which the first c/3d chequercrawlers were found