Period-10 sparkers

This is a list of known period-10 sparkers. Most or all were found with dr, which doesn't care about the period, and you get whatever you get.

x = 21, y = 9, rule = B3/S23 3b2o11b2o$b3ob2ob2ob2ob2ob3o$o8bobo8bo$b5obobobobob5o$6b2obobob2o$3b2o 5bo5b2o$3bo13bo$4bo11bo$3b2o11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]] 55P10. By far the most useful. It is a double middleweight sparker. It can be reduced by two rows (height 8 instead of 10) if bounding box is a concern, or the two halves can be skewed by two cells if clearance is a concern. (click above to open LifeViewer) RLE: here Plaintext: here	x = 16, y = 12, rule = B3/S23 11b2ob2o$7bobo2bobo$9bo2bobo$4bo5bob2o$4bo3b3o$11b3o$2obobob2obo2bo$ob 2obobo3b2o$5b2o2b2o$b4o5bo$bo2bo4bo$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]] p10 filter, named because it can double the period of a period 10N+5 stream, deleting every second glider. This is not its only use. (click above to open LifeViewer)
x = 14, y = 12, rule = B3/S23 2b2o$2bo$3b4obo$5b2o2bo$b4o$o4b2o$b3o2bobobo$3b2o3bob3o$7b2o4bo$8bob3o $8bobo$9bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]] p10 duoplet sparker (click above to open LifeViewer)	x = 19, y = 19, rule = B3/S23 11bo$11bobo$10bobo$12bo2$10bo6bo$6b2obobo3b2o$6b2o2bobo4b2o$11bobo2bo$ 12bo$bo4b2o$bobo2bobo2b2o$obo4b2o2b2o$2bo2$7bo$5b2o$7b2o$6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]] 46P10, used as a corner dot sparker. (click above to open LifeViewer) RLE: here Plaintext: here
#O Matthias Merzenich, November 12, 2010 #C The smallest known non-trivial period-10 oscillator. x = 13, y = 9, rule = B3/S23 7b2o4b$7bo2bo2b$3bo4bo3bo$4b2o3bob2o2$2obo3b2o4b$o3bo4bo3b$2bo2bo7b$4b 2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]] 24P10. Only useful in LCM oscillators. See 24P10 on 30P25 for the correct spot to use for interaction. (click above to open LifeViewer) RLE: here Plaintext: here	x = 15, y = 12, rule = B3/S23 2b2o3bo3b2o$2bobo5bobo$obo9bobo$2obo7bob2o$3bob2ob2obo$2obobo3bobob2o$ o2bob5obo2bo$2bo9bo$3b9o2$5b2ob2o$5b2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]] p10 lone dot sparker, found by Matthias Merzenich on February 19, 2022. Much less clearance than 55P10, but the lack of side sparks could allow it to work in a situation that 55P10 doesn't. No uses have been found yet, though. (click above to open LifeViewer)
x = 40, y = 31, rule = B3/S23 12bo7bo6bo$11bobo8bo3bobo$b2o4b3obo5bo4bo5bob3o4b2o$bo2bo10b2o6b2o10bo 2bo$2b4o4b2o3b2o6b2o3b2o4b4o$5bobob3o5bo4bo5b3obobo$2b5obo8bo13bob5o$ 2bo3bo4b2o6bo7b2o4bo3bo$5b2obob3o14b3obob2o$5bobobobo16bobobobo$6bo2bo 20bo2bo$2o7b2o18b2o7b2o$o2bobo2b2o20b2o2bobo2bo$b2ob2o3bo20bo3b2ob2o$ 2bo3b2o24b2o3bo$o2b4o26b4o2bo$2obo3bobo20bobo3bob2o$bobo2b2o24b2o2bobo $o2b2ob2o24b2ob2o2bo$obo2bo3bo20bo3bo2bobo$bobob4obo18bob4obobo$3bo6bo 18bo6bo$3bo3b2ob2o16b2ob2o3bo$b2ob2obobo20bobob2ob2o$2bobo2bobo20bobo 2bobo$2bo4bob2o18b2obo4bo$obo2bo2bo2bo16bo2bo2bo2bobo$2ob2ob2o2b2o16b 2o2b2ob2ob2o$3bobo28bobo$3bobo28bobo$4bo30bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]] p10 sandwich hassler and half-middleweight sparker (click above to open LifeViewer)

See also

• Period-7 sparkers, Period-8 sparkers, and Period-9 sparkers, similar lists