After drafting cards in turn order, players may either pay to place a counter on the corresponding spot on game board's rainbow grid or place the card face up in front of them and gain gold. Players gain points by filling the game board grid with consecutive spaces marked in their own colors (rainbows), and by achieving numerical sequences in the cards placed in front of them (money rainbows). In both cases, the longer the consecutive grid connection or numerical sequence, the more points gained at the end of the game. - BoardGameGeek