How to play Continuo.

About Continuo, from BoardGameGeek:

Continuo is a small tile placement game. After the initial setup of four tiles, players take turns adding tiles onto the edges of previously laid tiles, scoring points for creating aligned paths of colors. One point is awarded for each smaller square in a new path giving a score of 2 to 30 or more depending upon the length of the path. Play continues until all tiles have been used. The highest score wins.