Period-10 sparkers

Sparkers
Lists	p7 • p8 • p9 • p10
Related	With specific period With specific spark type

This is a list of known period-10 sparkers. Several 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 dot sparker. 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 Catagolue: here

x = 34, y = 17, rule = B3/S23 16b2o2$13bo6bo$12bo8bo$13b8o3$8b2o14b2o$2b2o4b6o6b6o4b2o$2b3o5b5o4b5o 5b3o$b2o2b2o2bo3bobo2bobo3bo2b2o2b2o$o2b2obob3obo2b4o2bob3obob2o2bo$2o bo2bobo2bobo6bobo2bobo2bob2o$3bob2ob2obob8obob2ob2obo$3bo2bo2bobo10bob o2bo2bo$4bobo2bobob4o2b2obobo2bobo$5bo4b2obo2bo2b2ob2o4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]]

p10 domino fountain. By far the most useful domino sparker. It has extremely good clearance and decent fallback, although the oscillator itself is much larger than 55P10 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 16, y = 13, rule = B3/S23 11b2ob2o$7bobo2bobo$9bo2bobo$4bo5bob2o$4bo3b3o$11b3o$3bobob2obo2bo$b3o bobo3b2o$o4b2o2b2o$b4o5bo$4bo4bo$3bo5b2o$3b2o! #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 10 N + 5 stream, deleting every second glider. This is not its only use (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

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) RLE: here Plaintext: here Catagolue: here

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 Catagolue: 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 Catagolue: here

x = 41, y = 30, rule = B3/S23 20bo2$7b2o8bo5bo8b2o$7bo8bo3bo3bo8bo$4b2obo2b2o3b3obobob3o3b2o2bob2o$ 4b2obob3ob3o4bo4b3ob3obob2o$7bobob2ob2o3bobo3b2ob2obobo$7bo11bobo11bo $5b2ob3obo4bobobobo4bob3ob2o$3bo2bo2b2o6b2o3b2o6b2o2bo2bo$3b2obo5b2o13b 2o5bob2o$6b3o23b3o$3b3o3bobobo13bobobo3b3o$2bo4bo3b2o3b2o5b2o3b2o3bo4b o$bob2obo2bobo2bo2bo5bo2bo2bobo2bob2obo$bobo2bob2obob4o7b4obob2obo2bo bo$2obobob4obo15bob4obobob2o$3bobo6bo2b2o7b2o2bo6bobo$3bobo6bobo2bo5b o2bobo6bobo$2obo5b2obobobo2bobo2bobobob2o5bob2o$o2b2ob3obob2o2bob2ob2o bo2b2obob3ob2o2bo$2bo2b4o7bo2bobo2bo7b4o2bo$3b3o9b2obo3bob2o9b3o$9bo5b o2b2ob2o2bo5bo$b5obobo2bo3b2o5b2o3bo2bobob5o$bo2bo2bobo2bobo2bo5bo2bo bo2bobo2bo2bo$6b2obob6o7b6obob2o$8bobo19bobo$8bobobob5o3b5obobobo$9b2o b2obo2bo3bo2bob2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]]

p10 dot fountain, found by Matthias Merzenich on February 24, 2026 based on a partial by hotcrystal0. Much larger 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) RLE: here Plaintext: here Catagolue: 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 smaller than the p10 dot fountain, but also has much less clearance. No uses have been found yet. (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

x = 30, y = 30, rule = B3/S23 24bo$14b2o2b2o4bo2b2o$15bo2bo9bo$14bo4bo3bob3o$14b2o2b2o2bo3bo$12b2o3b o2b3obobobo$12bo2b2ob2o3b2ob2obo$13b2obobob2o3bo3bo$14bo6bobobob2o$14b o5bo3bobo$12bobobo4b2obobo$8b2obobobob2o3bob2o$9bobobobob2o3bo$8bo2b2o 2bobo3b2o$9b2o4bobobo$11b4o2bob4o$9b2o3b2obo4bo$4bo3bo2b2o3bobobo$3bo bobobobo6bob2o$3bobobobo2b6o$2obobobo2b2o$ob2obobo4b4o$5b7o3bo$b4o7bo $o6bob3obo$2o5bo5bo$11b2o$10bo$11bobo$12b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]]

p10 pipsquirter, assembled by iNoMed on June 8th, 2024 (click above to open LifeViewer) RLE: here Plaintext: here Catagolue: here

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) RLE: here Plaintext: here Catagolue: here

x = 17, y = 15, rule = B3/S23 3b2o7b2o$2bo2bo5bo2bo$2bob2o5b2obo$b2o11b2o$3b3o5b3o$b2o3bo3bo3b2o$obo 3bo3bo3bobo$o15bo$7bobo$bo5bobo5bo$4bo2bobo2bo$4b3o3b3o$7b3o$6bo3bo$6b 2ob2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 5 THUMBSIZE 2 ]]

p10 corner dot sparker found by Open Science Grid (click above to open LifeViewer) Catagolue: here