Drag a city to move it, or tap two cities to swap them.
Each day brings six cities. Number them 1 to 6: north to south on some days, west to east on others.
Drag a city to move it, or tap two cities to swap them. Then check your order.
Cities in the right place turn green and stay put. You have 4 checks to get all six.
Endless mode keeps going, one set after another.