Rainbow 35

Cards numbered from 1 to 35 are lying out face up. A deck of cards numbered from 1-30 is shuffled and one card is put face up. Whoever points to the corresponding number first wins the card. Then the next card is revealed etc. Every card that has been taken by a player and shows the same color as the revealed card raises the number on the revealed card by one. I.e. If Player a already has a yellow card and a yellow 7 is revealed, players have to find the card with the 8 to claim the center card. Whoever gains 4 cards of the same color or cards with all 7 colours wins.