We’re betting many of you are looking at the image and headline of this story, smacking your head and saying, “Now why didn’t I think of that?”. Yes, it’s Sudokube, a combo of two of the most popular puzzles of the modern era: Rubik’s Cube and Sudoku. For the unfamiliar, Sudokube is basically a Rubik’s Cube, but with numbers. Instead of matching colors, you align the numbers from 1-9 on each side. As with Sudoku, we’re betting it’s a lot harder than it sounds, but tons of fun. Sudokube measures 2.16 x 2.16” and is available for just under $10 USD.