Maker: Philos The New Zealand puzzle is a combination game and is considered to be one of the world"s most difficult. The idea is to replace all the pieces back on the board according to the following rules: 1. No symbol may be put on the same symbol 2. No symbol may be laid beside the same symbol, either horizontally, vertically, diagonally 3. If a piece is laid down, the covered symbol is no longer usable 4. Once a piece is laid down, it may not be removed 5. If there is no further possibility to play, the game starts from the beginning Age: 6+