Four in a row wins!
This victory condition is well known, but Ringo puts a new twist on the concept. The playing field consists of eight rings: four red and four blue. On a turn, the active player places a disc of their color in any ring, then moves the ring to a position adjacent to another ring. Whoever first creates a row of four discs or four rings in their color wins!
—description from the publisher
For more information, please refer to the BGG listing.