Description: independence in the few rules : 1. Straight, only a rampage ~ 9 but should not repeat the two. nine small square Lane only have one to nine and can not be repeated. When users lose the amount of data into the off hours, on behalf of your programs must handle a large number of computing, if we do not point smarter ways (eg only one with a try by law), programs may be to perform a couple of hours. several independent disk is 9x9 = 81, If users have only to a 10 figures, it should come up with programs 71 grid. If the starting grid formula well, That worst case will be similar to (9!* 9) = 3265920 possibility to trial.
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