P9 bouncer

p9bouncer
x = 63, y = 63, rule = B3/S23 62bo$60b2o$61b2o5$54bo$54bobo$54b2o18$bo33bo$2o31b2o$obo31b2o5$7b2o18b o$7bobo17bobo$7bo19b2o10$9b2o$9bobo9b2o$9b3o5b2o2b2o$2o14bobo$bo7b2o6b o$bobo4b4o$2b2o3bo3bo7b2o$6bo12bo$6bo2bo10b3o$6bo15bo$2b2o3bo3bo$bobo 4b4o$bo7b2o$2o$9b3o$9bobo$9b2o! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBSIZE 2 X -15 Y 15 Z 12 GPS 9 HEIGHT 480 AUTOSTART LOOP 108 ]]
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Pattern type	Reflector Oscillator
Number of cells	64
Bounding box	23 × 19
Angle	90°
Period	9
Heat	Unknown
Discovered by	Matthias Merzenich Noam Elkies
Year of discovery	2018
Pattern files RLE p9bouncer.rle

P9 bouncer is a colour-changing glider reflector constructed by Matthias Merzenich in October 2018, with a minimum repeat time of 27 ticks. It is Noam Elkies' standard bouncer constellation consisting of a boat, eater 1, and block, with an unusual non-domino spark provided by one half of 68P9. For colour-preserving glider reflectors see p9 bumper and the stable Snark reflector.