Treasure Chest

The task is simple - the game is divided into rounds.
Each round is won when there are no closed chests on game board left.
Before round is started you can read how many moves you need to complete the round as fast as possible.
Press closed chest to open it, press opened chest to close it.
When you press any open chest - all open chests in the same line and column are closed an vice versa - all closed chests in the same line and column are opened
This is not an easy game - at least not from third round.
Have fun.