Your Intention Is To Accumulate Containers That Enter The Display. They Are In Two Colours, Black And White And You Can Change The Coloration Of Your Principal Field By Touching Or Clicking On The Display. In Order To Accumulate Incoming Containers, Central Field And These Ones Ought to Have The Similar Coloration. So Do Your Greatest To Match The Appropriate Coloration And Accumulate As A lot Containers As You Can!
Use Mouse Or Tap To Screen.