Derby - The logical game

Let's have a little cleanup! Derby is a marvelous little logic game where you have to make order on the game field. The color of every pebble in the columns must match the color of the one in the bottom column. To give the game a little spin, yo can only use the knight move (you know, the L shaped thingy) from the chess when swapping two pebbles.

The quick, but challenging gameplay makes this gem ideal during everyday commuting (unless you are the driver), waiting for someone (or simply making others waiting for you), or you tell me where you play your games. But enough talk, let's give it a spin!