Glider pusher

Glider pusher
x = 40, y = 33, rule = B3/S23 bo$2bo$3o$30bo$28b3o$27bo$27b2o6$22b2obob2o$22bo5bo$23bo3bo$16bo7b3o$ 17bo$15b3o3$32bo4bo$30b2ob4ob2o$32bo4bo8$29bo$30b2o$29b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ WIDTH 500 HEIGHT 500 ZOOM 16 X 8 GPS 10 LOOP 60 ]]
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Pattern type	Reflector Oscillator
Number of cells	31
Bounding box	21 × 23
Angle	0°
Period	30
Heat	38.4
Colour	Colour-changing
Discovered by	Dietrich Leithner
Year of discovery	1993
Rules Outer-totalistic rules B3/S23 only # of rules 20 = 1 Isotropic rules B3/S23-k – B34cqyz5kr6ce7c/S234ckyz5ek6-ac
Glider synthesis Fewest gliders 8 Catagolue-generated RLE synthesis
Pattern files Plaintext gliderpusher.cells RLE gliderpusher.rle
Identifiers apgcode xp30_x8s2tuz4s4w121y431e8zdddz9f9

The glider pusher is a period-30 oscillator consisting of a queen bee shuttle and a pentadecathlon. It emits a V spark predecessor, which can push the path of a passing glider out by one half-diagonal space and change its parity. It was found by Dieter Leithner in December 1993.

It is useful for constructing complex guns where it may be necessary to produce a number of gliders travelling on close parallel paths. For instance, it is used in the northern part of the sidecar gun.

A 8-glider synthesis of the glider pusher was completed by KtT in September 2023.

See also

• Edge shooter
• Bandersnatch
• Rephaser

External links

• Glider pusher at the Life Lexicon
• Glider pusher at Adam P. Goucher's Catagolue