p61 pi hassler improvement
From https://conwaylife.com/forums/viewtopic.php?p=163929#p163929:
x = 443, y = 70, rule = B3/S23
96bobo$96b2o$97bo$75bo$76bo23bo$74b3o22bo$18bo80b3o$19bo$17b3o6$24bo$
23bo136bo80bo80bo80bo$23b3o133bo2bo77bo2bo77bo2bo77bo2bo$159bo2bo77bo
2bo77bo2bo77bo2bo$161bo80bo80bo80bo$22bo$4b2o14bobo60b2o10bo59b2o10bo
68b2o10bo68b2o10bo68b2o10bo$4bobo2b2o10b2o60bobo2b2o4bobo58bobo2b2o4b
obo67bobo2b2o4bobo67bobo2b2o4bobo67bobo2b2o4bobo$bo4bo3bo69bo4bo3bo5b
obo54bo4bo3bo5bobo63bo4bo3bo5bobo63bo4bo3bo5bobo63bo4bo3bo5bobo$b5ob3o
70b5ob3o7b2o54b5ob3o7b2o63b5ob3o7b2o63b5ob3o7b2o63b5ob3o7b2o$5bobo76b
obo69bobo78bobo78bobo78bobo$b3obobo72b3obobo65b3obobo74b3obobo74b3obo
bo74b3obobo$o2bob2o72bo2bob2o65bo2bob2o74bo2bob2o74bo2bob2o74bo2bob2o
$2o77b2o70b2o79b2o79b2o79b2o3$398b2o$316b3o79b2o$318bo$317bo2b2o$320b
obo112bo$320bo112bobo$434b2o2bo$437bo$437b3o4$47b2o77b2o70b2o79b2o79b
2o79b2o$42b2obo2bo72b2obo2bo65b2obo2bo74b2obo2bo74b2obo2bo74b2obo2bo$
41bobob3o72bobob3o65bobob3o74bobob3o74bobob3o74bobob3o$41bobo76bobo69b
obo78bobo78bobo78bobo$39b3ob5o70b3ob5o63b3ob5o63b2o7b3ob5o63b2o7b3ob5o
63b2o7b3ob5o$38bo3bo4bo69bo3bo4bo62bo3bo4bo63bobo5bo3bo4bo63bobo5bo3b
o4bo63bobo5bo3bo4bo$38b2o2bobo72b2o2bobo53b2o10b2o2bobo67bobo4b2o2bob
o67bobo4b2o2bobo67bobo4b2o2bobo$43b2o77b2o53bobo14b2o68bo10b2o68bo10b
2o68bo10b2o$177bo$351bo80bo$350bo2bo77bo2bo$174b3o173bo2bo77bo2bo$176b
o175bo80bo$175bo6$180b3o$180bo$181bo76b3o$260bo22b3o$259bo23bo$284bo$
262bo$262b2o$261bobo!
It appears that this synthesis was only partially recognized, as the current cost is 69G, not 71-4=67G.