How to play NES tetris without rotations [Part II - Stacks and Burns]

I have decided after months of trying that I am throwing every earlier attempt to the bin but keep the basic script. I will do these videos of the series without cutting them and with "Jake's Tetris Block Tool" as it is pretty simple to use and set up board states. Sorry for the mouse I swear to god I clicked it of but somehow it remains for part II. I will make reviews and point out mistakes so you can deeply understand my points. Please leave a comment with your ideas and questions. Thank you for your support! See ya