This is a chain derived from BRx46B that I like to call the "glider chase" conduit. It is from here: https://www.conwaylife.com/forums/viewtopic.php?t=&p=19034#p19034.
x = 199, y = 170, rule = B3/S23
183b2o$183b2o2$152b2o34b2o$152b2o7b2o25b2o$161b2o3$153bo$152bobo$152bo
bo$153bo$195b2o$195bobo$197bo$171bo25b2o$170bobo$171b2o2$185b3o$176b2o
8bo$177bo6b3o$174b3o$174bo2$130b2o$130b2o7b2o$139b2o21b2o$162b2o2$131b
o$130bobo$130bobo$131bo2$157b2o$156bo2bo3b2o$157b2o4b2o10$108b2o$108b
2o7b2o$117b2o21b2o$140b2o2$109bo$108bobo$108bobo$109bo2$135b2o$134bo2b
o3b2o$135b2o4b2o10$86b2o$86b2o7b2o$95b2o21b2o$118b2o2$87bo$86bobo$86bo
bo$87bo2$113b2o$112bo2bo3b2o$113b2o4b2o10$64b2o$64b2o7b2o$73b2o21b2o$
96b2o2$65bo$64bobo$64bobo$65bo2$91b2o$90bo2bo3b2o$91b2o4b2o10$42b2o$
42b2o7b2o$51b2o21b2o$74b2o2$43bo$42bobo$42bobo$43bo2$69b2o$68bo2bo3b2o
$69b2o4b2o10$20b2o$20b2o7b2o$29b2o21b2o$52b2o2$21bo$20bobo$20bobo$21bo
2$47b2o$46bo2bo3b2o$47b2o4b2o12$30b2o$30b2o2$2bo$2bo$3o9b2o$o11b2o2$
25b2o$24bo2bo3b2o$25b2o4b2o!
#C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]]
[[ WIDTH 640 HEIGHT 480 ZOOM 2 ]]