se the idea is to get the number on the ball INCLUDING the ball itself. Now, if there were just one other ball to its right, yes, you would have created a row of two balls.
In Drop7 there are three different game modes and while they all have the same gameplay, you can enjoy slight changes that give quite a lot of variety to the game. The best part is that you can play a more relaxing game when you fancy an easy go, or a more vigorous one when you want a good challenge.
Drop7 is a game of fun and interesting puzzles. Though it can be confusing for the first two or three rounds, you'll get the hang of it before long.