I hope this gets points
for being one of the oddest.

I don't do it anymore, but as a child I counted the number of strokes in a letter in my head. For example an n was 3 (across, and two legs) then added it to the rest of the letters. Then I'd have a total for each word. This was done more or less instantaneously in real time. It didn't have any significance, though I preferred an odd number. It was just a way of keeping myself mentally ticking over.

Oh and when I was bored playing a game of solitaire or minesweeper in my head, and Sudoku for a bit. Seeing how long I could manage without forgetting it.

It all seemed quite natural especially since it was non-affective, and it's only looking back that I think that it was very bizarre and not something that everyone did.
( Amberl was stripey and dominated Europe, Thu 1 Jul 2010, 15:51, 9 replies)

I do mental Sudoku
I like to get the three numbers that you have to text in to win £100 from the Metro without filling anything in at all
( emvee cruor deo cruoris, Thu 1 Jul 2010, 15:59, closed)

Re: The strokes in letters
I imagine you damn near went insane with the letter 'O'

Unless of course you just counted it as 1 stroke?
(porkinator is a Rock n Roll nerd!, Thu 1 Jul 2010, 15:59, closed)

An 'O' in one stroke?
That's got to be a record.
( Larry Vest One day at a time, sweet Jesus, FFS., Thu 1 Jul 2010, 16:06, closed)

Fnar!

(porkinator is a Rock n Roll nerd!, Thu 1 Jul 2010, 16:39, closed)

I treated it as nought
I think
( Amberl was stripey and dominated Europe, Thu 1 Jul 2010, 16:18, closed)

How the hell
do you play minesweeper in your head???
(karnuvap, Thu 1 Jul 2010, 17:09, closed)

I could never finish it
but you can play by picking a random start point of numbers on the minesweeper and elaborating from there
( Amberl was stripey and dominated Europe, Thu 1 Jul 2010, 17:59, closed)

I used to do the Mental Minesweeper too, but always without right-clicking the mine locations. Oh no sirree. I was only allowed to click on the un-mined squares.

Signed,

A Sad Person
(IHaveComeAmongThee__Twice Tissues on the left. Self-esteem on the right., Thu 1 Jul 2010, 18:51, closed)

Not quite the same
but squaring large numbers in my head whilst driving down the M4 to work...
( Boot I want to know what you meant, Sat 3 Jul 2010, 9:09, closed)