A corner may be more likely to expand at least one square, but a middle click is more likely to have an immediately actionable open square. This is somewhat related though to the type of play one uses.
I started out as a flagging user (the usual right-click to mark known mines), and then I always started in the lower right corner. Then (after a few years break) I started playing non-flagging (that is no right click allowed) and I find that a middle click is much more likely to give an "easy" opening.
My usual opening consists of several middle clicks spread out until I get an opening (or failure).
Added: The cost (in seconds) of clicking corners until an opening is too high compared to the risk of getting a coin toss in a corner. Prudence isn't fast enough :)
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A corner may be more likely to expand at least one square, but a middle click is more likely to have an immediately actionable open square. This is somewhat related though to the type of play one uses.
I started out as a flagging user (the usual right-click to mark known mines), and then I always started in the lower right corner. Then (after a few years break) I started playing non-flagging (that is no right click allowed) and I find that a middle click is much more likely to give an "easy" opening.
My usual opening consists of several middle clicks spread out until I get an opening (or failure).
For every serious minesweeper I recommend the Minesweeper Clone: http://www.minesweeper.info/downloads/MinesweeperClone.html
(On one sad night I got 79 seconds on expert..)
Added: The cost (in seconds) of clicking corners until an opening is too high compared to the risk of getting a coin toss in a corner. Prudence isn't fast enough :)