Period-690 glider gun

	Period-690 glider gun
	<a href="/wiki/File:Period690glidergun.png" class="image" title="Period-690 glider gun image"><img alt="Period-690 glider gun image" src="/w/images/b/b2/Period690glidergun.png" decoding="async" width="379" height="190" /></a>
	<a href="/wiki/File:Period690glidergun.png" class="image" title="Period-690 glider gun image"><img alt="Period-690 glider gun image" src="/w/images/b/b2/Period690glidergun.png" decoding="async" width="379" height="190" /></a>
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Pattern type	Gun
Number of cells	62
Bounding box	52 × 25
Period	690
Barrels	1
Discovered by	Noam Elkies
Year of discovery	1996
Rules
Outer-totalistic rules	B3/S23 – B38/S23
# of rules	21 = 2
Isotropic rules	B3/S23-k – B34eq6c8/S234c5k6ein
Pattern files
Plaintext	period690glidergun.cells
RLE	period690glidergun.rle

Period-690 glider gun is a compound true period-690 glider gun found by Noam Elkies in July 1996. It is composed of a p30 queen bee shuttle pair and a p46 twin bees shuttle whose sparks occasionally react with each other. This is a very compact gun for such a high period and is used in many patterns requiring sparse glider streams. It is also compatible with both p30 technology and p46 technology, allowing it to be manipulated in many ways.

External links