Cover The Ball: Strong Blocks

Alarm! Black thorns are falling on the red balls! Only your strategic mind can organize the defense. You won't need a weapon in this game, just composure and logic. The essence of the game: Activate the blocks in perfect sequence on the field. As soon as you make the last move, get ready to watch the outcome of your plan. Will your structure withstand the powerful onslaught of thorns, or will the defenseless balls be destroyed?