Block-laying switch engine

The block-laying switch engine (or block-making switch engine) is a puffer that was found by Charles Corderman. It consists of a switch engine reacting with blocks to create an infinite number of new blocks (eight new blocks every 288 generations).

Block-laying switch engine
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Pattern type Puffer
Number of cells 43
Bounding box 29×28
Frequency class 19.6
Direction Diagonal
Period 288
Speed c/12
Discovered by Charles Corderman
Year of discovery 1971

Because of its easy construction (see the predecessor below), it has appeared in some superlinear growth patterns including mosquito 1 and mosquito 2.[1]

Commonness

The block-laying switch engine is the sixty-fourth most common object on Adam P. Goucher's Catagolue. It is the most common naturally-occurring pattern that exhibits infinite growth, being more common than the glider-producing switch engine.[2]

The blocks left behind by the block-laying switch engine
A simple predecessor of the block-laying switch engine
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References
  1. "Mosquito 1". The Life Lexicon. Stephen Silver. Retrieved on June 1, 2009.
  2. Adam P. Goucher. "Statistics". Catagolue. Retrieved on June 24, 2016.
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