25p3h1v0.1_synthOriginal synthesis method found January 6, 2015 by Martin Grant. 48-glider synthesis by Matthias Merzenich, June 13, 2015. Reduced 47-glider synthesis by Chris Cain, June 14, 2015. https://conwaylife.com/forums/viewtopic.php?f=2&t=1557#p15747 https://conwaylife.com/forums/viewtopic.php?f=2&t=1557&start=75#p20392 https://conwaylife.com/wiki/25P3H1V0.1