Bulldozer

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Bulldozer
4bo6bo4b$3bobob2obobo3b$3b2o2b2o2b2o3b$7b2o7b2$5b2o2b2o5b$5b2o2b2o5b$ 6b4o6b$6bo2bo6b$5bo4bo5b$5bo4bo5b$5bob2obo5b$6bo2bo6b$6bo2bo6b2$o14bo$ 2o4bo2bo4b2o$o5b4o5bo$b2o4b2o4b2ob$2bo10bo2b$obo10bobo$b5o4b5ob$3bo2b 4o2bo3b$2bo4b2o4bo2b$6bo2bo6b$7b2o7b$4b2ob2ob2o4b2$3bo8bo3b$2b3o6b3o2b $2bo2bo4bo2bo2b$b2o10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 3 ZOOM 21 WIDTH 600 HEIGHT 870 GPS 3 TRACK 0 -1/6 ]]
Pattern type Spaceship
Number of cells 114
Bounding box 16 × 32
Direction Orthogonal
Period 6
Mod 6
Speed c/6 | c/6
Heat 107.3
Discovered by Paul Tooke
Year of discovery 2008

Bulldozer[1] (also known as 114P6H1V0) is an c/6 orthogonal spaceship discovered by Paul Tooke in October 2008.[2] It was the second c/6 orthogonal spaceship to be found that does not involve a dragon (the first one being 274P6H1V0).

The spaceship features a strong central forward spark and a low enough speed, allowing it to run right over some small still lifes and oscillators and continue on unharmed.[3] It emits back sparks as well, which can perturb a glider in various ways when assisted by other c/6 spaceships. With perpetually recycled gliders, a dirty c/6 puffer[4] or even a clean rake is possible.

x = 63, y = 16, rule = B3/S23 11bo2b3o$o9bo2bobo$3o5bob4o$2b2o5b2o18b2o$2bo2bo4bo18bobo18bo$bo3bo4bo 9b3o2b2o3bo11bo7b2o$7bobo4b2o2b2o3b4o14bobo6b2o6bo$5b2ob2o3b2o5bo3bo3b 3o10b2o8bo6bobo$5b2ob2o3b2o5bo3bo3b3o6b2o7bo9bo$7bobo4b2o2b2o3b4o10b2o 7bo14b2o$bo3bo4bo9b3o2b2o3bo15bo8b2o$2bo2bo4bo18bobo29bo$2b2o5b2o18b2o 26bobo$3o5bob4o45bo$o9bo2bobo$11bo2b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ HEIGHT 400 WIDTH 1000 THUMBSIZE 2 ZOOM 14 GPS 8 AUTOSTART T 0 PAUSE 2 T 144 PAUSE 1 LOOP 145 ]] #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
The bulldozer running over a block, boat, blinker, toad and phoenix 1
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Variants

As shown below, the front part of the spaceship was found as a self-supporting wick, where the repeatable component can stabilise itself in any of three unique ways, making the spaceship arbitrarily extendable.

x = 142, y = 16, rule = B3/S23 11bo2b3o$o9bo2bobo$3o5bob4o$2b2o5b2o18b2o15b2o18b2o15b2o20b2o15b2o15b 2o$2bo2bo4bo18bobo14bobo19bo16bo11bo7bobo6bo7bobo6bo7bobo$bo3bo4bo9b3o 2b2o3bo6b3o2b2o3bo2bo6bobo3b2o4bo4bobo3b2o4bo8b5o2bo3bo5b5o2bo3bo5b5o 2bo3bo$7bobo4b2o2b2o3b4o8b2o3b4o7b2o2b2o2bo3bobo3bo2b2o2bo3bobo3bo2b3o 3bo2b2o2b2o2bo5bo2b2o2b2o2bo5bo2b2o2b2o2bo$5b2ob2o3b2o5bo3bo3b3o6bo3bo 3b3o2b3o2bo2b2o9bo2bo2b2o9bo9bo6b2obo6bo6b2obo6bo6b2obo$5b2ob2o3b2o5bo 3bo3b3o6bo3bo3b3o2b3o2bo2b2o9bo2bo2b2o9bo9bo6b2obo6bo6b2obo6bo6b2obo$ 7bobo4b2o2b2o3b4o8b2o3b4o7b2o2b2o2bo3bobo3bo2b2o2bo3bobo3bo2b3o3bo2b2o 2b2o2bo5bo2b2o2b2o2bo5bo2b2o2b2o2bo$bo3bo4bo9b3o2b2o3bo6b3o2b2o3bo2bo 6bobo3b2o4bo4bobo3b2o4bo8b5o2bo3bo5b5o2bo3bo5b5o2bo3bo$2bo2bo4bo18bobo 14bobo19bo16bo11bo7bobo6bo7bobo6bo7bobo$2b2o5b2o18b2o15b2o18b2o15b2o 20b2o15b2o15b2o$3o5bob4o$o9bo2bobo$11bo2b3o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART GPS 6 ZOOM 9 TRACKLOOP 6 1/6 0 THUMBSIZE 3 WIDTH 1400 ]]
Image: here
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Catagoluehere

In May 2009, Hartmut Holzwart found the following pushalong for this spaceship.[5]

#N 114P6H1V0 pushalong #O Hartmut Holzwart, May 2009 #C A pushalong for the c/6 orthogonal period 6 spaceship 114P6H1V0. x = 30, y = 43, rule = B3/S23 5b3o14b3o$3obo20bob3o$4bo3bo12bo3bo$4bo4bo10bo4bo$10bo8bo$6bo7b2o7bo$ 7b2ob2ob4ob2ob2o$11bobo2bobo4$11bo6bo$10bobob2obobo$10b2o2b2o2b2o$14b 2o2$12b2o2b2o$12b2o2b2o$13b4o$13bo2bo$12bo4bo$12bo4bo$12bob2obo$13bo2b o$13bo2bo2$7bo14bo$7b2o4bo2bo4b2o$7bo5b4o5bo$8b2o4b2o4b2o$9bo10bo$7bob o10bobo$8b5o4b5o$10bo2b4o2bo$9bo4b2o4bo$13bo2bo$14b2o$11b2ob2ob2o2$10b o8bo$9b3o6b3o$9bo2bo4bo2bo$8b2o10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 12 WIDTH 730 HEIGHT 730 AUTOSTART GPS 6 TRACKLOOP 6 0 -1/6 ]]
Pushalong for the bulldozer
(click above to open LifeViewer)
RLE: here Plaintext: here

In 2013 and 2014, Josh Ball found three more pushalongs.[6][7]

#N 114P6H1V0 pushalongs #O Josh Ball, 2014 #C Pushalongs for the c/6 orthogonal period 6 spaceship 114P6H1V0. x = 63, y = 60, rule = B3/S23 27b5o$26bo2bo2bo$26b2obobo$30bo$29bo$28b2o$28b2obo$29bo$30bobo$31bo2$ 29b3o$4b3o20b2ob2o$7bob3o15b2obo$3bo3bo18b2o2bo$3bo3bo20bo18b3o8b3o$ 27bo5bo12b2ob2o6b2ob2o$7bo24b3o12bobo8bobo$5b2o20b3o17bo12bo$5bo23b3o 15bob4o2b4obo$6b3o21b2o14bo2b2ob4ob2o2bo$5bobobo20b5o17b4o$6bob3o21bo 15bo10bo$8bobo21bo12b3o2bo6bo2b3o$8b2o22bo16bo3b2o3bo$7bobo21bo17bobo 4bobo3$4bo6bo15bo6bo15bo6bo$3bobob2obobo13bobob2obobo13bobob2obobo$3b 2o2b2o2b2o13b2o2b2o2b2o13b2o2b2o2b2o$7b2o21b2o21b2o2$5b2o2b2o17b2o2b2o 17b2o2b2o$5b2o2b2o17b2o2b2o17b2o2b2o$6b4o19b4o19b4o$6bo2bo19bo2bo19bo 2bo$5bo4bo17bo4bo17bo4bo$5bo4bo17bo4bo17bo4bo$5bob2obo17bob2obo17bob2o bo$6bo2bo19bo2bo19bo2bo$6bo2bo19bo2bo19bo2bo2$o14bo7bo14bo7bo14bo$2o4b o2bo4b2o7b2o4bo2bo4b2o7b2o4bo2bo4b2o$o5b4o5bo7bo5b4o5bo7bo5b4o5bo$b2o 4b2o4b2o9b2o4b2o4b2o9b2o4b2o4b2o$2bo10bo11bo10bo11bo10bo$obo10bobo7bob o10bobo7bobo10bobo$b5o4b5o9b5o4b5o9b5o4b5o$3bo2b4o2bo13bo2b4o2bo13bo2b 4o2bo$2bo4b2o4bo11bo4b2o4bo11bo4b2o4bo$6bo2bo19bo2bo19bo2bo$7b2o21b2o 21b2o$4b2ob2ob2o15b2ob2ob2o15b2ob2ob2o2$3bo8bo13bo8bo13bo8bo$2b3o6b3o 11b3o6b3o11b3o6b3o$2bo2bo4bo2bo11bo2bo4bo2bo11bo2bo4bo2bo$b2o10b2o9b2o 10b2o9b2o10b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 12 WIDTH 870 HEIGHT 870 AUTOSTART GPS 6 TRACKLOOP 6 0 -1/6 ]]
Other pushalongs for the bulldozer
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RLE: here Plaintext: here

A small tagalong was discovered by Carson Cheng on September 4, 2023.[8]

x = 18, y = 41, rule = B3/S23 5b8o$4bob6obo$4b3o4b3o$7bo2bo$6bo4bo$6b2o2b2o3$6b2o2b2o2$5bo2b2o2bo$8b 2o$6b6o3$obo12bobo$o2bo10bo2bo$o2bo2b6o2bo2bo2$2b3o8b3o$3bobob4obobo$ 5bo2b2o2bo$5bo6bo$6b2o2b2o2$6bo4bo$6b6o$5b2ob2ob2o$3bob2o4b2obo$3bob2o 4b2obo$2b2o10b2o3$3bo10bo$2bobo8bobo$3b2o8b2o$8b2o$8b2o$5b8o$4bobo4bo bo$5b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 13 WIDTH 730 HEIGHT 730 AUTOSTART GPS 6 TRACKLOOP 6 0 -1/6 ]]
Tagalong for the bulldozer
(click above to open LifeViewer)
RLE: here Plaintext: here

The tagalong is only supported by the domino sparks at the back of the spaceship, which means it can also be attached to the back of a pair of bulldozers.

x = 42, y = 41, rule = B3/S23 5b8o16b8o$4bob6obo14bob6obo$4b3o4b3o14b3o4b3o$7bo2bo20bo2bo$6bo4bo18b o4bo$6b2o2b2o18b2o2b2o3$6b2o2b2o18b2o2b2o2$5bo2b2o2bo16bo2b2o2bo$8b2o 22b2o$6b6o18b6o3$obo12bobo6bobo12bobo$o2bo10bo2bo6bo2bo10bo2bo$o2bo2b 6o2bo2bo6bo2bo2b6o2bo2bo2$2b3o8b3o10b3o8b3o$3bobob4obobo12bobob4obobo $5bo2b2o2bo16bo2b2o2bo$5bo6bo16bo6bo$6b2o2b2o18b2o2b2o2$6bo4bo18bo4bo $6b6o18b6o$5b2ob2ob2o16b2ob2ob2o$3bob2o4b2obo12bob2o4b2obo$3bob2o4b2o bo12bob2o4b2obo$2b2o10b2o10b2o10b2o3$15bo10bo$14bobo8bobo$15b2o8b2o$20b 2o$20b2o$17b8o$16bobo4bobo$17b2o4b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 13 WIDTH 730 HEIGHT 730 AUTOSTART GPS 6 TRACKLOOP 6 0 -1/6 ]]
Tagalong supported by two bulldozers instead of one
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RLE: here Plaintext: here


See also

References

  1. Bjorn (January 2, 2015). Re: Project Alias (discussion thread) at the ConwayLife.com forums
  2. Jason Summers' jslife pattern collection. Retrieved on October 28, 2020.
  3. New c/6 Extensible Spaceship at Game of Life News. Posted by Dave Greene on March 8, 2009.
  4. Nico Brown (July 26, 2017). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums
  5. New c/6 Spaceships at Game of Life News. Posted by Heinrich Koenig on May 31, 2009.
  6. Josh Ball (August 18, 2013). Re: Thread for your unsure discoveries (discussion thread) at the ConwayLife.com forums
  7. Josh Ball (December 17, 2014). Re: List of updates since 23. August 2013 for GoL status page (discussion thread) at the ConwayLife.com forums
  8. Carson Cheng (September 4, 2023). Re: Spaceship Discussion Thread (discussion thread) at the ConwayLife.com forums

External links