MyNevermind is a nice freeware game for OS X I have been using to kill time lately.

The game is very similar to the 1970 boardgame Mastermind but it is slightly harder because instead of having 6 colours, you have 10 numbers and the game is single player. Basically, the aim of the game is to find a 4 digit number in less then 10 turns!

To help you find these digits, you would be told whether a digit is correct, but in the wrong place, or whether it is in the right place. You will not, however, be told which digit is correct and you have to deduce this yourself.

The game is timed, for purposes of score calculation, but there is no time limit. I generally spend about 5 minutes to play the game, but depending on your skills of deduction, this may be much longer or much quicker!

The game is not the most attractive application, but it is fit for purpose and still exercises your brain!

If you have a Mac, you might as well download it and at least give it a try. It’s only 308Kb big!