Chess Board Puzzle

I can't figure out how to play the chess board puzzle. The instructions say to match 3 or more similar images, but nothing I have tried seems to work. There could have been much better instructions, IMHO. ;-Deano

Hi! You play the Chess Board Puzzle like a match 3 game. Eventually, the "Queen" will appear on the board and you match 3 until she drops to the bottom of the board.