At early November 2013, the level was changed with 10 moves with a minimum score of 800 in early November 2013. Failure can be possible if you do not make any cascades. Additionally, should the player reach the target score, Sugar Crush occurs immediately, yielding at least 3000 points for every remaining move. This characteristic was present in the 5 tutorial moves levels, but all further moves levels require you to use all your moves.
Then, it changed the target score decreased to 650. You may still fail this level, if you use the most ineffective moves.