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"QUBAMI: 3D sudoku with a twist!" Mini 2x2x2 version. The objective is to scramble the puzzle from its ordered starting state, so that only one copy of each colour and symbol lies on every row and column on all six faces.
- Inventor: Kelvin Stott
- Mechanism: 2x2x2
- Patents: WO2007085878; US12/161727; EP1976604; CA2640074; A
- Producer: Kelvin Stott
- Year: 2009
- Original Price: $25.00 USD
- Current Price: No Data
Qubami is a new 3D twisting sudoku cube puzzle based on the mechanism of Rubik's Cube. This mini version of the 3x3x3 Qubami puzzle has only 2 colours (yellow and blue) and 2 different symbols (O and X), and begins in a semi-ordered starting state with each colour covering 3 sides, and the 2 symbols distributed in a specific but more disordered state. The goal is to scramble the puzzle, so that only one copy of each colour and one copy of each symbol lies on every row and every column of blocks (like sudoku) on all six faces of the puzzle. Each Mini-Qubami puzzle has almost 3.7 million permutations, but only one unique secret sudoku solution that is not explicitly defined and must be deduced by sudoku-like logic for each individual puzzle. This makes the puzzle more difficult than a standard 2x2x2 pocket cube, because one has to work out where each block goes in the final solution, as well as how to get it there, however the puzzle can also be solved by colour, or by symbol alone (in either ordered or sudoku states), providing several alternative challenges.
As with the 3x3x3 Qubami, the mini version is high quality with rounded ABS plastic cubies that ensure smooth turning with significant corner cutting capabilities, and polyurethane domed metallic labels which provide good grip and complete the full-rounded organic quality look and feel of the puzzle.
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Thank you to the following people for their assistance in helping collect the information on this page: Kelvin Stott.
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