| Period-690 glider gun |
x = 52, y = 25, rule = B3/S23
11bo$11b3o$14bo$13b2o6$13b2o3b2o$13bo5bo2$14bo3bo$15b3o$33b2o$23b2o7bo
bo15b2o$23b2o7bo17b2o$32b3o$12bo$12bobo$2o11bobo$2o11bo2bo15b3o$13bobo
16bo17b2o$12bobo17bobo15b2o$12bo20b2o!
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| Pattern type |
Gun |
| Number of cells |
62 |
| Bounding box |
52 × 25 |
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| Period |
690 |
| Barrels |
1 |
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| Discovered by |
Noam Elkies |
| Year of discovery |
1996 |
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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 its output to be manipulated in many ways.
Reduction
On January 18, 2025, iNoMed found a 49 × 22 gun using a small p30 sparker in place of the queen bees.[1]
x = 47, y = 22, rule = B3/S23
5b2o4b2o$5bobo2bobo$7bo2bo$6bo4bo$6bo4bo$6bo4bo32b2o$8b2o34b2o$b3o$30b2o$o3bo15b2o7bobo13b2o$o3bo6bo8b2o7bo15b2o$9bobo17b3o$b3o8b2o$11b2o2$b3o25b3o$29bo15b2o$o3bo24bobo13b2o$o3bo25b2o2$b3o40b2o$44b2o!
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References
External links
