comes from Gennadii Umanets. The object is to drag the blue and green magnetic balls onto the red spots below.
There balls definitely have a quasi magnetic feel. Try grabbing one of the blue balls in the middle and watch them bunch up.
I don't know how many levels there are, but I've done about 20.
This reminds me: there were 2 mechanical puzzles that had many magnets. Both were designed by Chris Morgan, a prominent member of the International Puzzle Party.