Need Java Assignment for course

Project Description:

I want to get an assignment done. Involves building on a minesweeper game written in Java. You subsequent code is to be used as the base.

All Minesweeper games must be stored on disk and read at beginning of a new game.

Allow the user to save partial solutions and restart from them.

Allow the user to nominate a username and save statistics on every user. Also allow a user to view a league table of user's performance.

Provide easy, medium and hard stages of games. The hardness of a game depends on the ratio of number of mines to the size of the grid for the game.

Allow the player to ask for the puzzle to be completed.

Allow the player to perform any number of undo and redo commands.

Allow mines to have different impacts ranging from minor to destroy. For example, two medium strength mines could have the similar impact as one destroy strength mine.

A well designed GUI interface.

Skills required: Java