As most of you know minesweeper is a logic game where mines are hidden in a grid of squares. The object is to open all safe squares in the quickest time possible. The first click is always safe and reveals a number or an opening surrounded by numbers. Each number tells you how many mines touch the square. You are the game master and putting mines into the grids.
As a game master, you can put as many mines as possible and you decided to find the highest possible summation of the numbers given as a hint in the game.
So What is the highest possible summation of the numbers given as a hint in original 9x9 grid?