New 3×3 Cube Puzzle Calvin’s Puzzle 3x3x3 Sudoku Cube Ultra Stickerless (version 6) Children’s Educational Puzzles Toys for Kids

3x3x3 Sudoku Cube Ultra Stickerless (version 6)

Color : Stickerless
Size : 56x56x56mm
Weight : about 110g

The Sudoku Cube series have 3+1+2 versions :
1. Challenge – each center has different color ; each corner has same color at 3 sides ; each edge has same color at 2 sides; each face has 9 different color pieces
2. Wisdom – 2 centers have same colors; each corner has different color at 3 sides; 2 edges have same color at 2 sides; each face has 9 different color pieces
3. Master – each center has different color  ; each corner has different color at 3 sides ; each edge has different color at 2 sides; each face has 9 different color pieces
4. Elite – the center has 2 color  ; each corner has same color at 3 sides ; each edge has same color at 2 sides; each face has 3 different color pieces and no adjcent pieces has same colors
5. Pro –  the center has 3 color  ; each corner has different color at 3 sides ; each edge has different color at 2 sides; each face has 3 different color pieces ; face's row and column have 3 different colors pieces

6. Ultra – the center has 5 color  ; each corner has different color at 3 sides ; each edge has different color at 2 sides; each face has 9 different color pieces ; circular ring has 12 different colors pieces 

The Sudoku Cube Pro features to have each face's row and column have 3 different colors pieces. After scrambled, you need to resume it to the initial stage. It is challenging to solve and much fun !

The turning is smooth. It is good for collection and as gifts to friends / families. 

Enjoy !