Thirteen-Bit Life Objects

Still-lifes | Pseudo-still-lifes | P2 oscillators | P2 pseudo-oscillators | P3 oscillator | Spaceship



The 240 thirteen-bit still-lifes

Due to space limitations, these and their syntheses are shown on a separate page.


The 110 thirteen-bit pseudo-still-lifes

13-bit pseudo-still-lifes


The 3 thirteen-bit period 2 oscillators

13-bit P2

Byflops; Butterfly; Griddles on two Ys [21] Bipole tie boat [8] Heptapole [16]


The 17 thirteen-bit period 2 pseudo-oscillators

13-bit period 2 pseudo-oscillators

Up beacon below eater [7] Up long boat on beacon [6] Down beacon above eater [5] Up beacon on eater [7] Up trans python on beacon [10] Up cis python on beacon [10] Up boat on bipole [6] Up loaf on beacon [6] Down loaf on beacon [6]
Down trans python on beacon [10] Down beacon below eater [7] Down beacon on eater [7] Down long boat on beacon [6] Block on tripole [9] Up boat on bipole [8] Up beacon above eater [5] Down cis python on beacon [10]  


The 1 thirteen-bit period 3 oscillator

13b P3

Jam [7]

Jam is the cheapest oscillator that produces a period 3 finger spark. It is one bit larger than the caterer, but much cheaper and easier to synthesize. Also, jam forms on most still-lifes that have a bonding surface like the long diagonal side of a loaf (from which its name was inspired), so it forms the basis for many larger period 3 oscillators (and many with periods that are multiples of 3, such as period 6).


The 1 thirteen-bit spaceship

13b SS

Heavy- weight spaceship; HWSS; Big fish [3]

The HWSS has a period of 4 and an orthogonal velocity of c/2. It moves one cell up and flips from side to side every two generations, effectively moving two cells up every 4 generations. It is one of the few common spaceship in Life, and is used in some syntheses.



Other sizes: 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26 and larger, not quite stable objects.

See also: Life objects sorted by: counts, frequency of occurrence, cost in gliders, name, size in bits, or type.

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Copyright © 1997, 1998, 1999, 2013, 2014 by Mark. D. Niemiec. All rights reserved.
This page was last updated on 2015-02-19.