Good Sudoku game for price but,
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This review is from: Electronic Sodoku Handheld Reasoning & Logic IQ Game Sudoku Challanger (Toy)
This is a cheap and cheerful electronic Sudoku game. Very good value for money with clear screen and neat size (12x7x1.7 cm). The instructions are a bit odd and it takes a while to sort out what is being said. But once sorted, it is quite easy to use.
Normally with Sudoku, once the game has started there is only specific positions where the numbers go. However, I did notice that when completing the Sudoku there was not always unique solutions as some numbers could be interchanged between two positions. For example if the first two numbers in the left hand side of the top row were 1 and 2, then normally within the left hand side of the bottom row, the two numbers would not be 2 and 1 as the 1 and 2 could be interchanged in both rows to give a solution. While the Sudoku challenge does not have this constraint, it does not really distract from the game. However, note that when coming to the end of the game and there are several cells where the numbers can be interchanged, if you do not know this limitation then trying for a unique solution becomes very hard work.
For the price, such limitations are trivial.