Sudoku

The game contains 1 main board 81 black cardboard pieces (digits from 1 to 9) 4 sets of 81 cardboard pieces (each set in different colour: red, green, yellow and blue) 1 booklet with tasks 1 hourglass 1 instruction Players choose the task they are going to solve from the task booklet. They place black cardboard pieces according to the model from the booklet. Next each player chooses the colour of the cardboards pieces he is going to use on the board. The oldest player starts the ga