Period-18 R-pentomino hasslers

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Main article: R-pentomino hasslers

All known period-18 R-pentomino hasslers.

x = 19, y = 19, rule = B3/S23 13b2o$13bo$bo9bobo$2b2o7b2o$2o16bo$2bo13b3o$8bo6bo$6b3o6b2o$2b2o3bo$bo bo$bo9b2o$2o8b2o$11bo3$9b2o4bo$10bo2bobo$7b3o4bobo$7bo6bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 WIDTH 600 THUMBLAUNCH THUMBSIZE 2 THEME Book ZOOM 16 GPS 9 STARTFROM 18 ]]
50P18,[1] found by Jason Summers in February 2004, reduced by iNoMed on June 10, 2022
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Catagolue: here
x = 37, y = 26, rule = B3/S23 11b3o$9bo$9bo4bo$10bo$12b2o$13bo12b2o$13bo12bo4bo$13bo14bobobo$24b5obo 2bo$b2o4b2o15bo5b4o$bobo3b2o18b2obo3b2o$3bo11b2o10bo3bobo2bo$3b2o11b2o 2bo7b3o3b2o$b2o3b3o7bo2b2o11b2o$o2bobo3bo10b2o11bo$b2o3bob2o18b2o3bobo $3b4o5bo15b2o4b2o$3bo2bob5o$4bobobo14bo$5bo4bo12bo$9b2o12bo$23b2o$26bo $22bo4bo$27bo$23b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 WIDTH 600 THUMBLAUNCH THUMBSIZE 2 THEME Book ZOOM 12 GPS 9 STARTFROM 18 ]]
122P18,[1] found by David Raucci on August 7, 2021, reduced by Matthias Merzenich, then 50P9s replaced with 42P9s
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Catagolue: here
x = 26, y = 29, rule = B3/S23 b2o$o2bo$o$o$obo3bo$bobo3bo$2bo4bo3b2o$3b4o4b2o3$8b2o$7bo2bo$6b2ob2o$ 8bo2$17bo$15b2ob2o$15bo2bo$16b2o3$13b2o4b4o$13b2o3bo4bo$18bo3bobo$19b o3bobo$25bo$25bo$22bo2bo$23b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 WIDTH 600 THUMBLAUNCH THUMBSIZE 2 THEME Book ZOOM 12 GPS 9 STARTFROM 18 ]]
52P18,[1] found by Jason Summers on February 26, 2022
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Catagolue: here
x = 32, y = 19, rule = B3/S23 21b2o$21bo4bo$23bobobo$19b5obo2bo$13b2o4bo5b4o$13b2o7b2obo3b2o$22bo3bo bo2bo$b2o4b2o14b3o3b2o$bobo3b2o5bo12b2o$3bo10b3o11bo$3b2o10bo7b2o3bobo $b2o3b3o14b2o4b2o$o2bobo3bo$b2o3bob2o7b2o$3b4o5bo4b2o$3bo2bob5o$4bobob o$5bo4bo$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 WIDTH 600 THUMBLAUNCH THUMBSIZE 2 THEME Book ZOOM 16 GPS 9 STARTFROM 18 ]]
99P18,[1] 117P18 found by David Buckingham no later than May 1991, reduced to 113P18 using 50P9, then reduced to 99P18 using 42P9
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Catagolue: here
x = 54, y = 21, rule = B3/S23 21bo10bo$20bobo8bobo$20bobo8bobo$3bo15b2ob2o6b2ob2o15bo$2bobo44bobo$2b obo10bo3b2ob2o6b2ob2o3bo10bobo$2o2b2o8bobobobo9b2obobobobo8b2o2b2o$bob o6b2o2bobobo3bo12bobobo2b2o6bobo$o2b3o4bobobobob2o14b2obobobobo4b3o2bo $obo3b2o3b2obo2bo2bo6bo5bo2bo2bob2o3b2o3bobo$bob5o6bo4b4o3b3o3b3o4bo6b 5obo$3bo10b2o3b3obo4bo3b3o3b2o10bo$3bo10b2o3b3o10b3o3b2o10bo$bob5o6bo 4b3o10b3o4bo6b5obo$obo3b2o3b2obo2bo2bo12bo2bo2bob2o3b2o3bobo$o2b3o4bob obobob2o14b2obobobobo4b3o2bo$bobo6b2o2bobobo16bobobo2b2o6bobo$2o2b2o8b obobobo12bobobobo8b2o2b2o$2bobo10bo3b2o12b2o3bo10bobo$2bobo44bobo$3bo 46bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 WIDTH 600 THUMBLAUNCH THUMBSIZE 2 THEME Book ZOOM 10 GPS 9 STARTFROM 18 ]]
248P18,[1] found by David Raucci in 2020
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Catagolue: here
x = 26, y = 29, rule = B3/S23 11bo$10bobo$9bobobo$9bo3bo$7b2ob3o$6bobobo$6bobo6b2o$4b2obo8bo$3bo2bo$ 3b3o$b2o$o2b2o$2obo7b3o$3bo7b2o$3b2o6b4o6b2o$13b2o7bo$12b3o7bob2o$21b 2o2bo$23b2o$20b3o$19bo2bo$9bo8bob2o$9b2o6bobo$15bobobo$13b3ob2o$12bo3b o$12bobobo$13bobo$14bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 WIDTH 600 THUMBLAUNCH THUMBSIZE 2 THEME Book ZOOM 12 GPS 9 STARTFROM 18 ]]
94P18, found by Nora Brown on June 21, 2023[2] Uses an unusually long eater 4 interaction.
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Catagolue: here
x = 34, y = 21, rule = B3/S23 5b2o$6bo$4bo10b2o$2obob4o6b2o$ob2obo2bo2$12b2o13b2o$2b2o3b2o4bo7b2o4b o$2bobo2b2o2b3o7b2o6bo2bo$3bo24b5o2$b5o24bo$bo2bo6b2o7b3o2b2o2bobo$6b o4b2o7bo4b2o3b2o$5b2o13b2o2$25bo2bob2obo$17b2o6b4obob2o$17b2o10bo$27b o$27b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 500 WIDTH 600 THUMBLAUNCH THUMBSIZE 2 THEME Book ZOOM 16 GPS 9 STARTFROM 18 ]]
p18, stable version of a known one, noticed by iNoMed in an Mitchell Riley CatForce haul on August 29, 2024.[3] Also a B-heptomino hassler.
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RLE: here Plaintext: here
Catagolue: here


References

  1. ↑ 1.0 1.1 1.2 1.3 1.4 RLE extracted from https://conwaylife.com/w/index.php?title=RLE:P18rpentominohasslers&oldid=113151
  2. ↑ Nora Brown (June 21, 2023). Message in #cgol on the Conwaylife Lounge Discord server
  3. ↑ Period1GliderGun (September 2, 2024). Re: Oscillator Discussion Thread (discussion thread) at the ConwayLife.com forums
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