Minesweeper queen

Ok so when there's down time at work I usually study but when I get sick of that I just play computer games... well i've always like to play minesweeper but I've never really known how to play it... that is untill a guy at work taught me how. This guy could win the game in 58 seconds which I thought was quite impressive so I knew I had to beat that score... by the end of the day I had won in 48 secods I was very proud... the next day though he informed me he did it in 40 seconds... grrr... so I took on the challenge... and got my time all the way down to 39 seconds then 28 seconds then 23 seconds he couldn't believe it and is still trying to beat that time... I haven't told him yet my new time of 15 seconds... dun dun dun