September 13, 2016

Problem of the Week

for Tuesday, September 13, 2016

On day one, the dot lives in the square pictured below. On day two, he passes through an edge to inhabit any of the four neighboring squares. On day three, he passes through an edge of his day-two home to live in a neighboring square. How many different squares represent the possible location of the dot on day three?

Winners of day-three challenge