Instructions for adults:
- Print out the sudoku boards and laminate them if you wish.
- Cut the papers in half so that each board is on its own A5 size paper.
- There are three levels of difficulty in the main house sudoku: one star, two stars and three stars.
- Watch the Häärämö YouTube channel to see how handy it is to guide your child to solve sudoku puzzles.
Guide for your child:
- Count how many squares of each colour are on your game board. You need a total of four of each of the four colours.
- For example, if you have three blue squares on your board, how many more do you need to make four blue squares in total? So take one blue Duplo piece.
- Place the Duplo pieces you have taken above the board in the colour order you have chosen, so that one colour is always at the bottom (see picture above). For each Sudoku, you will need 1 to 3 of each colour.
Solve the sudoku:
- Find the row with only one colour missing.
- When you can no longer find rows with only one colour missing, look at the large square (2 x 2 square). Which colour is missing? In addition to the previous solution strategies, take aside the two colours that are missing from the row or the large square. Decide from the horizontal and vertical lines where the colours belong.
- Only put a colour in place if you are sure that it belongs there. If you think a colour can be placed in two different squares on the same row, don’t place it yet.
Sudoku boards: Lego-sudoku Eng (PDF, 117 kB)