Conti's Game of Chince (An implementation of the GOL that I took from a Youtube video

gol.py

def neighbors(point):
    x,y = point
    yield x + 1, y
    yield x - 1, y
    yield x, y + 1
    yield x, y - 1
    yield x + 1, y + 1
    yield x + 1, y - 1
    yield x - 1, y + 1
    yield x - 1, y - 1
    
def advance(board):
    newstate = set()
    recalc = board | set(itertools.chain(*map(neighbors, board)))
    for point in recalc:
        coint = sum((neigh in board) for neigh in neighbors(point))
        if count == 3 or (count == 2 and point in board):
            newstate.add(point)
    return newstate