The Grid from Color-Sudoku consists of 4×4 fields, in which there are four blocks formed from 2×2 fields. The tasks are predefined with colored blocks and are solved with printed, white blocks. There are four colors in total: red, yellow, green, and blue. The rules are very simple: each column, each row, and each block must contain all four colors. Consequently, no column, row, or block can contain two or more blocks of the same color.

Solving Sudoku puzzles in a playful way promotes children's visual perception, short-term memory, and logical thinking. The tactile nature of the building blocks and the age-appropriate puzzles also improve hand-eye coordination and motor skills. Solving Sudoku puzzles, whose difficulty level is adapted to the child's age and abilities, promotes self-confidence and, through concentrated activity, persistence, frustration tolerance, and focused work are strengthened.

All Sudoku pieces are compatible with popular block systems from other manufacturers and are ideal for young thinkers due to the connection system and convenient size. The pieces are familiar to children and facilitate the placement and removal of pieces; additionally, the base provides the necessary stability and also serves as an ideal base when traveling or in class.

Like all Hubelino products, the puzzles are manufactured in Germany according to the highest quality standards and are tested by independent institutes.

• Box dimensions: 18.2 x 26.5 x 4.7 cm
• Weight: 0.550 kg