Small pseudo still lifes
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This page aims to document examples of pseudo still lifes with less than 35 cells.
Smallest pseudo still lifes
8 cells
There is only one pseudo still life with 8 cells.[1]
Still life | apgcode | FC | Synth. cost | ||
---|---|---|---|---|---|
1 | Bi-block | xs8_rr | 7.0 | 2 |
9 cells
There is only one pseudo still life with 9 cells.[2]
Still life | apgcode | FC | Synth. cost | ||
---|---|---|---|---|---|
1 | Block on boat | xs9_253033 | 10.8 | 3 |
10 cells
There are a total of 7 pseudo still lifes with 10 cells.[3]
Still life | apgcode | FC | Synth. cost | ||
---|---|---|---|---|---|
1 | Block on beehive | xs10_660696 | 10.5 | 3 | |
2 | Cis-bi-boat | xs10_2530352 | 13.4 | 3 | |
3 | Block on ship | xs10_330356 | 15.1 | 3 | |
4 | Trans-bi-boat | xs10_25606a4 | 16.7 | 4 | |
5 | Cis-block on carrier | xs10_33039c | 20.0 | 4 | |
6 | Trans-block on carrier | xs10_0brz32 | 20.5 | 4 | |
7 | Block on snake | xs10_bdz33 | 22.2 | 4 |
11 cells
There are a total of 16 pseudo still lifes with 11 cells.[4]
Still life | apgcode | FC | Synth. cost | ||
---|---|---|---|---|---|
1 | Up boat on ship | xs11_2530356 | 4 | ||
2 | Up boat on snake | xs11_dbz352 | 5 | ||
3 | Up boat on carrier | xs11_2lmz641 | 5 | ||
4 | Down boat on snake | xs11_bdz352 | 5 | ||
5 | Block on python | xs11_0brz65 | 6 | ||
6 | Block on loaf | xs11_2596066 | 3 | ||
7 | Boat on beehive | xs11_2560696 | 4 | ||
8 | Up boat below carrier | xs11_253039c | 5 | ||
9 | Down boat on ship | xs11_25606ac | 4 | ||
10 | Block above eater | xs11_33032ac | 4 | ||
11 | Block below eater | xs11_0gbrz23 | 4 | ||
12 | Block on eater | xs11_178c0cc | 4 | ||
13 | Block on long boat | xs11_25ac0cc | 4 | ||
14 | Down boat on carrier | xs11_0c93z253 | 4 | ||
15 | Block below python | xs11_3303lo | 4 | ||
16 | Down boat below carrier | xs11_25606io | 5 |
Larger examples
Cells | Example / apgcode | FC | Synth. cost | |
---|---|---|---|---|
12 | Block on pond xs12_6606996 |
4 | ||
13 | Boat on long ship xs13_253035ac |
6 | ||
14 | Long snake on eater 1 xs14_ca23z3lo |
8 | ||
15 | Boat on block on ship xs15_2lmzold |
8 | ||
16 | Pond on pond xs16_699606996 |
4 | ||
16 | Carrier on broken snake xs16_0rdzg0arz11 |
11 | ||
17 | Hat on bi-block xs17_4aar0rr |
7 | ||
18 | Long hook with tail on long hook with tail xs18_8e12kmz31243 |
24 | ||
19 | Hat on loop xs19_4aar0ra96 |
9 | ||
20 | Ship on bi-block on ship xs20_0ml3z0ddz653 |
6 | ||
21 | Hat on snake on snake xs21_4aar0rahr |
10 | ||
22 | Pond on paperclip xs22_6996069bqic |
5 | ||
23 | Hat on tub with tail on snake xs23_bd0mkk8z178l8 |
|||
23 | Hat on tub with tail on snake xs23_bd0mkk8z178l8 |
|||
24 | Four blocks on pond xs24_gg0gbbg0ggz1101qq1011 |
9 | ||
25 | Up boat on mirrored dock xs25_3lkkl3zrag023z01 |
5 | ||
26 | Bi-block and dead spark coil xs26_rhe0ehr0rr |
6 | ||
27 | Paperclip and beehive at loaf xs27_ciqb96z4aicggzx1221 |
|||
28 | Paperclip and paperclip xs28_69bqic0ciqb96 |
|||
29 | Fourteener and moose antlers xs29_0g8ow31e8gz2fgkc0c871 |
|||
30 | Ship on ship and dead spark coil xs30_03lkl3zgbq0qbgz11x11 |
|||
31 | Up long3 boat on mirrored dock xs31_3lkkl3z320garz4a521 |
|||
32 | Triple pseudo still life xs32_bd0mk2sgz1785d0mq |
|||
33 | Tapeworm and mirrored dock xs33_321fgkcz6a88a6z651156 |
|||
34 | Quad pseudo still life xs34_4aar0rq1e8gzx64260bd |
Cheap eater 2 variants
Pseudo still life agars
Much like with strict still lifes, it is easy to build pseudo still lifes which are infinitely extensible, both one-dimensionally and two-dimensionally.
The simplest case can be seen by stacking individual blocks in n-by-m block arrays, which will always yield a larger pseudo still life provided the array is perfectly rectangular. It is easy to see how this can be continued indefinitely.
x\y | 1 | 2 | 3 | ... |
---|---|---|---|---|
1 | → | |||
2 | ||||
3 | ||||
... | ↓ | ↘ |
The same can be done with ponds in much the same arrangements to yield an orthogonal marshland agar:
x\y | 1 | 2 | 3 | ... |
---|---|---|---|---|
1 | → | |||
2 | ||||
3 | ||||
... | ↓ | ↘ |
Ponds have the added bonus that they can form shapes which are not necessarily rectangular, and as such any pond can be omitted anywhere to yield a stable pattern.
References
- ↑ The 1 eight-bit pseudo-still-life at Mark D. Niemiec's Life Page (download pattern file: 0/8bkbk.rle)
- ↑ The 1 nine-bit pseudo-still-life at Mark D. Niemiec's Life Page (download pattern file: 0/9btbk.rle)
- ↑ The 7 ten-bit pseudo-still-lifes at Mark D. Niemiec's Life Page
- ↑ The 16 eleven-bit pseudo-still-lifes at Mark D. Niemiec's Life Page