Pre-pulsar shuttle

A pre-pulsar shuttle is a shuttle that hassles a predecessor of the pulsar. Small pre-pulsar shuttles are currently known for periods 22, 25, 26, 28, 29, 30, 32, 36, 40, 42, 47, 58, 60, 64, 88, and 90. Shuttles for these periods are shown below, along with the number of generations and displacement for each reaction.

<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 24, y = 19, rule = B3/S23 b2o18b2o$o2bo2b2o8b2o2bo2bo$b2o2bobo8bobo2b2o$3b2o14b2o$3bo16bo$2obo8b 3o5bob2o$o2bob2o5bobob3obo2bo$2b2ob2o5b3ob3ob2o4$2b2ob2o5b3ob3ob2o$o2b ob2o5bobob3obo2bo$2obo8b3o5bob2o$3bo16bo$3b2o14b2o$b2o2bobo8bobo2b2o$o 2bo2b2o8b2o2bo2bo$b2o18b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p22, left: (11,3), right: (11,3) (Catagolue: here)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 25, y = 23, rule = B3/S23 18bo$b2o13b3o$o2bo2b2o7bo$b2o2bobo7b2o$3b2o$3bo$2obo8b3o$o2bob2o5bobo 3b2o$2b2ob2o5b3o3b2o3$20b2o$2b2ob2o5b3o4bob3o$o2bob2o5bobo4bo4bo$2obo 8b3o3b2ob3o$3bo13bo2b2o$3b2o12b2o$b2o2bobo9bo$o2bo2b2o8bo4bo$b2o13b4ob o$20bo$18bo$18b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p25, left: (11,3), right: (14,3) (Catagolue: here)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 39, y = 39, rule = B3/S23 12b2o11b2o$12b2o3bo3bo3b2o$17bo3bo$17bo3bo$11bo15bo$10bobo13bobo$11bo 3b3o3b3o3bo$15bobo3bobo$15b3o3b3o2$5bo27bo$4bobo25bobo$2o3bo27bo3b2o$ 2o35b2o$16b2o3b2o$6b3o8bo3bo8b3o$6bobo5bo9bo5bobo$b3o2b3o5b2o7b2o5b3o 2b3o4$b3o2b3o5b2o7b2o5b3o2b3o$6bobo5bo9bo5bobo$6b3o8bo3bo8b3o$16b2o3b 2o$2o35b2o$2o3bo27bo3b2o$4bobo25bobo$5bo27bo2$15b3o3b3o$15bobo3bobo$ 11bo3b3o3b3o3bo$10bobo13bobo$11bo15bo$17bo3bo$17bo3bo$12b2o3bo3bo3b2o$ 12b2o11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p26, edge: (14,3), centre: (12,3) (p26 pre-pulsar shuttle)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 17, y = 22, rule = B3/S23 4b2o$3bo2bo$2bobobo4bo$2bo2bo4bobo$bo9bo3b2o$2bobo10b2o2$8b3o$8bobo$8b 3o2b3o4$2o6b3o2b3o$2o6bobo$8b3o2$15b2o$3b2o6bo3b2o$4bo5bobo$b3o7bo$bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p28, left: (14,3), right: (14,3) (p28 pre-pulsar shuttle)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 18, y = 27, rule = B3/S23 11b2o$11bo$13bo$9b5o$9bo$12b4o$12bo2bo2$bo$obo6b3o4bo$bo7bobo3bobo$9b 3o3bobo$16bo2$16bo$9b3o3bobo$bo7bobo3bobo$obo6b3o4bo$bo2$12bo2bo$12b4o $9bo$9b5o$13bo$11bo$11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p29, left: (15,3), right: (14,3) (p29 pre-pulsar shuttle)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 18, y = 11, rule = B3/S23 bo14bo$obo6b3o3bobo$bo7bobo4bo$9b3o4$9b3o$bo7bobo4bo$obo6b3o3bobo$bo 14bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p30, left: (15,3), right: (15,3) (Eureka)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 26, y = 33, rule = B3/S23 5bo14bo$4b2o14b2o$3bob2o12b2obo$2b3o2bo10bo2b3o$4bobobo8bobobo$5bobobo 6bobobo$6bo2b3o2b3o2bo$7b2obo4bob2o$3b2o3b2o6b2o3b2o$2b3o3bo8bo3b3o$bo b2o16b2obo$obo20bobo$o2bo10b3o5bo2bo$b2o11bobo6b2o$14b3o4$14b3o$b2o11b obo6b2o$o2bo10b3o5bo2bo$obo20bobo$bob2o16b2obo$2b3o3bo8bo3b3o$3b2o3b2o 6b2o3b2o$7b2obo4bob2o$6bo2b3o2b3o2bo$5bobobo6bobobo$4bobobo8bobobo$2b 3o2bo10bo2b3o$3bob2o12b2obo$4b2o14b2o$5bo14bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p32, left: (16,5), right: (16,5) (Catagolue: here)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 36, y = 75, rule = B3/S23 11b2o$12bo$10bo$10b2o4b2ob2o$13b2o2bobo$9bob2ob2o3bo$9b2obob3o2bob2o$ 17bobo2bo$15b2obob2o$10b2o3b2o3bo$11bo3b3o2bo2b2o$10bo7bob2o2bo$10b2o 5b2o3b2o$13bobo4b2o$8b7ob4obo$8bo9bobo$9b3obo4bobobobo$11bobo2bobo2bob 2o$14b3ob2obo$13bo5bobo$13b3obobob2o$2o11bo6bo2bo$obo12b4o3b2o$2b3o9bo b6o$bo3bo9bo6b2o$b3o2bo2bo4b2o5bo2bo$6bob2o10bobobo2b2obo$b3o2bo2bo4b 2o5bo2bobo2b2o2bo$bo3bo8bob4o4bob2o3b3o$2b3o10b4o6bo2b3o$obo13bob2obo 3bobo4b2o$2o23bobo2b2obo$21bo5b3o4b2o$13b3o5b2o2b2o2b2o4bo$b2o10bobo 11bo2bob3o$bo2bo8b3o13bo2bo$2b3o25b2o2$2b3o25b2o$bo2bo8b3o13bo2bo$b2o 10bobo11bo2bob3o$13b3o5b2o2b2o2b2o4bo$21bo5b3o4b2o$2o23bobo2b2obo$obo 13bob2obo3bobo4b2o$2b3o10b4o6bo2b3o$bo3bo8bob4o4bob2o3b3o$b3o2bo2bo4b 2o5bo2bobo2b2o2bo$6bob2o10bobobo2b2obo$b3o2bo2bo4b2o5bo2bo$bo3bo9bo6b 2o$2b3o9bob6o$obo12b4o3b2o$2o11bo6bo2bo$13b3obobob2o$13bo5bobo$14b3ob 2obo$11bobo2bobo2bob2o$9b3obo4bobobobo$8bo9bobo$8b7ob4obo$13bobo4b2o$ 10b2o5b2o3b2o$10bo7bob2o2bo$11bo3b3o2bo2b2o$10b2o3b2o3bo$15b2obob2o$ 17bobo2bo$9b2obob3o2bob2o$9bob2ob2o3bo$13b2o2bobo$10b2o4b2ob2o$10bo$ 12bo$11b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 8 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p36, left: (20,5), right: (16,5) (Catagolue: here)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 22, y = 35, rule = B3/S23 2b3o$bo16b2o$bo3bo10bob2o$bo2bobo8bo$3bobo2bo9bo$4bo3bo5b2obo$8bo5b2o$ 5b3o6$12b3o$2o10bobo5b2o$o2bo8b3o3bo2bo$b3o14b3o2$b3o14b3o$o2bo8b3o3bo 2bo$2o10bobo5b2o$12b3o6$5b3o$8bo5b2o$4bo3bo5b2obo$3bobo2bo9bo$bo2bobo 8bo$bo3bo10bob2o$bo16b2o$2b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p40, left: (20,5), right: (20,5) (Catagolue: here)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 36, y = 37, rule = B3/S23 11b2o10b2o$9bo2bo10bo2bo$7b4o14b4o$6bo4b4o6b4o4bo$6b2ob2o4bo4bo4b2ob2o $4b2o2bobob3o6b3obobo2b2o$3bo2b2o2bobo10bobo2b2o2bo$4bo26bo$5b3o3bo12b o3b3o$10bo14bo$5b2o10b2o10b2o$2bo2bo11b2o11bo2bo$bobobo24bobobo$obobo 26bobobo$obo6b3o12b3o6bobo$bobo5bobo12bobo5bobo$2bo2bo3b3o12b3o3bo2bo$ 3b3o24b3o2$3b3o24b3o$2bo2bo3b3o12b3o3bo2bo$bobo5bobo12bobo5bobo$obo6b 3o12b3o6bobo$obobo26bobobo$bobobo24bobobo$2bo2bo11b2o11bo2bo$5b2o10b2o 10b2o$10bo14bo$5b3o3bo12bo3b3o$4bo26bo$3bo2b2o2bobo10bobo2b2o2bo$4b2o 2bobob3o6b3obobo2b2o$6b2ob2o4bo4bo4b2ob2o$6bo4b4o6b4o4bo$7b4o14b4o$9bo 2bo10bo2bo$11b2o10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p42, edge: (20,5), centre: (22,5) (Catagolue: here)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 30, y = 31, rule = B3/S23 12bo4bo$10b3o4b3o$9bo10bo$9b2o8b2o2$7bo14bo$7bo14bo$7bo6b2o6bo$14b2o2$ bo26bo$obo3b3o12b3o3bobo$bo4bobo12bobo4bo$6b3o12b3o4$6b3o12b3o$bo4bobo 12bobo4bo$obo3b3o12b3o3bobo$bo26bo2$14b2o$7bo6b2o6bo$7bo14bo$7bo14bo2$ 9b2o8b2o$9bo10bo$10b3o4b3o$12bo4bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p47, edge: (25,5), centre: (22,5) (p47 pre-pulsar shuttle)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 27, y = 25, rule = B3/S23 10b2o3b2o$10bo5bo$2o2b2ob2obo5bob2ob2o2b2o$o2bobobobo7bobobobo2bo$bobo 3bo11bo3bobo$2ob2o2b2o9b2o2b2ob2o3$15b3o$15bobo$15b3o4$15b3o$15bobo$ 15b3o3$2ob2o2b2o9b2o2b2ob2o$bobo3bo11bo3bobo$o2bobobobo7bobobobo2bo$2o 2b2ob2obo5bob2ob2o2b2o$10bo5bo$10b2o3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p58, left: (29,6), right: (29,6) (p58 pre-pulsar shuttle)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 21, y = 29, rule = B3/S23 4bo11bo$4bo11bo$4bo11bo$3b2o11b2o$bo17bo$o4bo9bo4bo$o19bo$2b3o11b3o3$ 12b3o$12bobo$12b3o4$12b3o$12bobo$12b3o3$2b3o11b3o$o19bo$o4bo9bo4bo$bo 17bo$3b2o11b2o$4bo11bo$4bo11bo$4bo11bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 12 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p60, left: (30,6), right: (30,6) (Catagolue: here)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 33, y = 51, rule = B3/S23 17b2o$17b2o2$26b3o$26b3o$24bo4b4o$23b6ob3o$23bo3b2o$23bob2o$24b2o2$19b 2o$9b2o7b2obo$10bo5b2o3bo$10bob3ob6o$2o2b2ob2obob4o4bo$o2bobobobo6b3o$ bobo3bo8b3o$2ob2o2b2o$26b2o$26b2o$15b3o$15bobo$15b3o4$15b3o$15bobo$15b 3o$26b2o$26b2o$2ob2o2b2o$bobo3bo8b3o$o2bobobobo6b3o$2o2b2ob2obob4o4bo$ 10bob3ob6o$10bo5b2o3bo$9b2o7b2obo$19b2o2$24b2o$23bob2o$23bo3b2o$23b6ob 3o$24bo4b4o$26b3o$26b3o2$17b2o$17b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 10 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p64, left: (29,5), right: (35,5) (Catagolue: here)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 30, y = 63, rule = B3/S23 15bo3b2o$14bobo2bo$14bobo3bo$12b2obob3obo$13bo3bo3bo$13bob2ob3ob2o$12b 2ob2obo3bo$11bo2bob4o2bo$12bobo4b2ob2o$13bobo3bo2bo$14bo3bobo2bo$10b2o 9b2o$10bobo5b2o$12bo4b2ob3o$12b2o2b2o5bo$15b3o3b2obo$10b5ob2o4bobo2bo$ 7bobo5bo2bob3o2b3o$7b2obo2bo5b2o2b2o$10bobob3o3bobo2b3o$10bo2b3o3bo3bo 4bo$2o2b2ob2obo3bo4bob2ob2o2bo$o2bobobobo10bobobobob2o$bobo3bo14bo3bo$ 2ob2o2b2o12b2o2b2o2$12b2o$12b2o4b3o$11bobo4bobo$18b3o4$18b3o$11bobo4bo bo$12b2o4b3o$12b2o2$2ob2o2b2o12b2o2b2o$bobo3bo14bo3bo$o2bobobobo10bobo bobob2o$2o2b2ob2obo3bo4bob2ob2o2bo$10bo2b3o3bo3bo4bo$10bobob3o3bobo2b 3o$7b2obo2bo5b2o2b2o$7bobo5bo2bob3o2b3o$10b5ob2o4bobo2bo$15b3o3b2obo$ 12b2o2b2o5bo$12bo4b2ob3o$10bobo5b2o$10b2o9b2o$14bo3bobo2bo$13bobo3bo2b o$12bobo4b2ob2o$11bo2bob4o2bo$12b2ob2obo3bo$13bob2ob3ob2o$13bo3bo3bo$ 12b2obob3obo$14bobo3bo$14bobo2bo$15bo3b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 8 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p88, left: (44,9), right: (44,9) (Catagolue: here)
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RLE: here Plaintext: here
<html><div class="rle"><div class="codebox"><div style="display:none;"><code></html>x = 24, y = 31, rule = B3/S23 8b2o4b2o$4bo3bobo2bobo3bo$4bo5bo2bo5bo$4bo4bo4bo4bo$3b2o4b6o4b2o$bo8b 4o8bo$o4bo12bo4bo$o22bo$2b3o14b3o2$9b2o$9b2o4b3o$8bobo4bobo$15b3o4$15b 3o$8bobo4bobo$9b2o4b3o$9b2o2$2b3o14b3o$o22bo$o4bo12bo4bo$bo8b4o8bo$3b 2o4b6o4b2o$4bo4bo4bo4bo$4bo5bo2bo5bo$4bo3bobo2bobo3bo$8b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ GPS 50 THUMBLAUNCH THUMBSIZE 2 THEME 6 ZOOM 10 HEIGHT 600 WIDTH 600 ]]<html></code></div></div><canvas width="200" height="300" style="margin-left:1px;"><noscript></html>
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p90, left: (45,9), right: (45,9) (Catagolue: here)
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RLE: here Plaintext: here

See also
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