112P51 is an unnamed period-51oscillator that was discovered by Nicolay Beluchenko on February 17, 2009.[1] It was the first non-trivial period-51 oscillator to be found, all previously known period 51 oscillators being made up of disjoint period 3 and 17 oscillators. It can be extended diagonally by making copies of itself share two blocks as shown below.
