Trans-snake-tie

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Revision as of 23:28, 19 November 2023 by Dvgrn (talk | contribs) (Undo revision 141292 by Confocal (talk) It does certainly seem like a good idea to coordinate changing the LifeWiki and Catagolue, roughly at the same time. However, removing a *proposed* move tag -- especially for the second time in a row, for the same exact reason! -- seems like a step in completely the wrong direction for getting those coordinated changes made.)
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Trans-snake-tie
x = 6, y = 6, rule = B3/S23 4b2o$5bo$4bo$4b2o$ob2o$2obo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBSIZE 3 ZOOM 21 HEIGHT 400 SUPPRESS ]]
Pattern type Strict still life
Number of cells 12
Bounding box 6 × 6
Frequency class 32.2
Static symmetry Unspecified
Discovered by Robert Wainwright
Everett Boyer
Year of discovery 1973
Proposedmove.png It has been proposed that this page be moved to Cis-snake-tie due to the following reason: "Trans" usually indicates rotational symmetry and the components being farther apart.

The trans-snake-tie[1] is a 12-cell still life.

Construction

This still life is known to be constructible with 5 gliders.[1] A 5-glider synthesis was found by Carson Cheng and iNoMed on August 11, 2022.[2][3] Several known alternate syntheses can be found in Mark Niemiec's database.[4]

x = 68, y = 29, rule = B3/S23 obo37bobo$b2o38b2o$bo39bo5$4bo39bo$2bobo37bobo$3b2o23b2obo11b2o$28bob 2o$32b2o$7b3o22bo14b3o$9bo8bo14bo15bo8bo$8bo8b2o13b2o14bo8b2o$17bobo 37bobo5$20b3o27b2o$20bo28bobo$21bo29bo4$66b2o$65b2o$67bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 8 X 0 Y 0 AUTOSTART GPS 12 T 0 PAUSE 3 T 29 PAUSE 1 T 36 PAUSE 1 LOOP 37 ]]
A 5G synthesis (left) and a 6G synthesis (right)[3]
(click above to open LifeViewer)
x = 38, y = 28, rule = B3/S23 11bo$12bo$10b3o2$15bo$16b2o$15b2o4bo$21bobo$21b2o2$32b2obo$22bo9bob2o$ 22bobo11b2o$22b2o12bo$37bo$36b2o$14b3o$bo12bo$b2o12bo$obo6$24b2o$23b2o $25bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THEME Book ZOOM 10 X 0 Y 0 AUTOSTART GPS 12 T 0 PAUSE 3 T 28 PAUSE 1 T 29 PAUSE 2 LOOP 30 ]]
A 7G synthesis[4]
(click above to open LifeViewer)

Occurrence

Among the 121 still lifes with 12 cells, this is the 89th most common still life according to Catagolue.

There are no occurrences of this still life in final patterns of collisions in octohash, octo3obj or octo3g databases.

See also

References

  1. 1.0 1.1 xs12_kc3213z11 at Adam P. Goucher's Catagolue
  2. iNoMed (August 11, 2022). Message in #cgol on the Conwaylife Lounge Discord server
  3. 3.0 3.1 shinjuku (#2846891110) (August 11, 2022). Job triggered by Adam P. Goucher at GitLab Catagolue project.
  4. 4.0 4.1 The 121 twelve-bit still-lifes at Mark D. Niemiec's Life Page (download pattern file: 12/12-14.rle)

External links