Hi, I just played level 2186 and I couldn't see any moves but it blinked some pieces and the only move I had left involved swapping a piece that was partly hidden underneath a globe, or whatever the item that drops special candies is called. From what I could see there isn't a background on that piece, it looks like it's not part of the board that the candies sit on. Using that square made things a little easier to get through the level but I would think it's not meant to have a candy on it.