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Rich's p16 is a period 16 oscillator that was found by Rich Holmes on July 5, 2016 using Adam P. Goucher's apgsearch. It consists of a bi-boat interacting with unnamed objects that then create two more boats in the exact same position, but flipped. Tanner Jacobi and Michael Simkin used Rich's p16 to optimize various guns, and Blinkerspawn found a glider synthesis for it, both the day of its discovery.