Small pseudo still lifes

This page aims to document examples of pseudo still lifes with less than 35 cells.

4 to 10 cells • 11 cells • 12 cells • 13 cells • 14 cells • 15 cells • 16 cells • 17 cells • 18 cells • 19+ cells • common • pseudo

Smallest pseudo still lifes

8 cells

There is only one pseudo still life with 8 cells.

	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.

	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.

	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.

	Still life		apgcode	FC	Synth. cost
1		Up boat on ship	xs11_2530356		4
2		Up boat on snake	xs11_dbz352		4
3		Up boat on carrier	xs11_2lmz641		4
4		Down boat on snake	xs11_bdz352		4
5		Block on python	xs11_0brz65		5
6		Block on loaf	xs11_2596066		3
7		Boat on beehive	xs11_2560696		4
8		Up boat below carrier	xs11_253039c		4
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		5
14		Long snake on eater 1 xs14_ca23z3lo		8
15		Boat on block on ship xs15_2lmzold		5
16		Pond on pond xs16_699606996		4
16		Carrier on broken snake xs16_0rdzg0arz11		9
17		Hat on bi-block xs17_4aar0rr		5
18		Long hook with tail on long hook with tail xs18_8e12kmz31243		20
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
24		Four blocks on pond xs24_gg0gbbg0ggz1101qq1011		8
25		Up boat on mirrored dock xs25_3lkkl3zrag023z01		5
26		Bi-block and dead spark coil xs26_rhe0ehr0rr		5
27		Paperclip and beehive at loaf xs27_ciqb96z4aicggzx1221
28		Paperclip and paperclip xs28_69bqic0ciqb96		6
29		Fourteener and moose antlers xs29_0g8ow31e8gz2fgkc0c871
30		Ship on ship and dead spark coil xs30_03lkl3zgbq0qbgz11x11		8
31		Up long³ boat on mirrored dock xs31_3lkkl3z320garz4a521		10
32		Triple pseudo still life xs32_bd0mk2sgz1785d0mq		76
33		Tapeworm and mirrored dock xs33_321fgkcz6a88a6z651156
34		Quad pseudo still life xs34_4aar0rq1e8gzx64260bd

Eater 2 variants

x = 9, y = 6, rule = B3/S23 2b2obo$2b2ob3o$8bo$2b2ob3o$o2bobo$2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 4 THUMBSIZE 2 ]]

This eater 2 variant has 19 cells like the canonical form and can be used when the canonical form wouldn't fit. (click above to open LifeViewer)

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.