They say......."Here you can play and practice the free online version of the carnival puzzle game 'Cover the Red Spot'. The object of the game is to completely cover the big red circle with the 5 smaller zinc discs. The puzzle looks like it should be easy to solve, but actually is very difficult. However, once you figure out the winning disc configuration, with a little practice you should be able to consistently beat the cover the spot game. Interestingly, the puzzle is still used at carnivals and fairs, and the prizes offered for successfully covering the spot are usually the biggest and best."
Well, I got nowhere near.....and not helped by the leader board giving the winning time as 6 seconds!
Roll up, roll up my pretties, try your luck here