The exciting yet relaxing logic training for a single player aged 5 and up. At the beginning, 4x4 Sudokus are solved, gradually progressing to the increasingly tricky 6x6 Sudokus. The front side of the puzzle card shows the starting positions, and the solution can later be checked on the back. Colorful tokens depicting funny animals or numbers are used to fill the spaces on the game board. No color may repeat in any row, column, or square. This requires some brainpower, and the learning curve rises steeply. A brain game that challenges while also providing relaxation. Brain training for clever kids: Should the clever fox or the cheeky cockatoo go in this space? Solving a 4x4 or 6x6 Sudoku requires some thought. 30 puzzle cards indicate which tokens should initially fill the spaces on the game board. Then it's time to think carefully and combine: No color may repeat in any row, column, or marked square. Beginners will start on the 4x4 board and gradually become excited about more challenging tasks. The color tokens can be chosen from funny animals or numbers. It gets exciting every time, as soon as you check the back of the puzzle card after solving the Sudoku to see if everything is correct. This logic training for a player aged 5 and up greatly enhances combinatorial skills and offers both excitement and relaxation.