This is a version of minesweeper that does the tedious bits for you. When you have flagged the right number of squares around a number, it will uncover the remaining ones. Also, when you have uncovered enough squares around a number, so that all the rest must be mines, it will flag them for you.
Use the left button to uncover squares, and the right button to flag them, as in the Windows version. There's no equivalent of the both buttons thing - you don't need it. When you win or lose, click anywhere on the board to restart.
Since this version doesn't display a count of the number of mines flagged, you'll have to count them yourself on the occasions when you want to know. There are always 99 mines.
If you want to play the game offline, save this page, download the Java archive lbmine.jar, and keep them both in the same directory. Then you can open your copy of the page and it ought to work.
Comments/bug reports welcome - email me at david-web@bubblycloud.com