I will check it out but you were already there pretty much with the logic from your first screenshot it was just about tweaking a few things.
For Player.Y it is set at array.width-1,1 after the push back player X action
You need to ensure the array height is at least 2 or the column doesnt exist for the player Y.
Run it in debug mode to see what is happening with the values.
The main reason you should get used to manipulating a single array is because when it comes to importing a data file like the one you have provided it should be imported as is into one array.