Method and apparatus for enhancing the twelve coin balancing puzzle

摘要

A total of thirteen identically appearing coins is provided in lieu of the usual twelve coins. Eleven of these thirteen coins are made identical in weight to result in eleven identical coins and two remaining coins. One of the remaining coins is heavier than any one of the eleven identical coins and the other of the remaining coins is lighter. These two remaining coins are undistinguishable from the eleven identical coins without some sort of the aid to the human senses. Such an aid is provided to enable separation of the two remaining coins from the eleven identical coins when they are all mixed up at the start of the game. One of the two remaining coins can then be added to the eleven coins to make up the necessary twelve coins to work the puzzle. The player does not know whether a lighter or heavier coin has been added and thus a new and challenging game is presented each time.