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There are N = 6670903752021072936960 6.671×1021 valid Sudoku grids. Taking out the factors of 9! and 722 coming from relabelling and the lexicographical reduction of the top row of blocks B2 and B3, and of the left column of blocks B4 and B7, this leaves 3546146300288 = 27×27704267971 arrangements, the last factor being prime.
9^9 x 8^9 x 7^9 x 6^9 x 5^9 x 4^9 x 3^9 x 2^9 x 1^9 = 362880^9
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What is different 9x9 sudoku grids are there?
6,670,903,752,021,072,936,960 , or 6.67*10^21.
How many rectangles in sudoku grid 9x9?
There are 2025 rectangles in a 9x9 grid.
Are there any types of sudoku?
wordoku, sudoku using symbols, different sizes (4x4, 6x6, 9x9, 16x16) plus differently shaped puzzles and the "samurai" (5 interlocking 9x9 boxes) ----those are really REALLY HARD!!!
How many different 9x9 sudokus are there?
6,670,903,752,021,072,936,960
What is the maximum possible number of givens in a standard 9X9 Sudoku grid that does not render a unique solution?
A Sudoku can have a non-unique solution with only 4 empty cells. Here's an example: 003496758 587132469 694875213 008763945 946581327 375924186 761259834 852347691 439618572 If the first 2 cells are filled with 1,2 the 2 in row 4 must be 2,1, and vice-versa. So there can be up to 77 givens in a 9x9 sudoku without a unique solution.
How many square feet in 9x9?
Assuming 9x9 is also in feet, then answer is 81 square feet.
What does 9x9?
9x9=81
How many squares in a 9x9 square?
81
What is the answer for 9x9?
9x9 = 81.
What are the mechanics in sudoku?
The mechanics involved in sudoku follow the principal, that any 3x3 grid can be filled with the numbers 1-9, every row can have 1-9, and every column can have 1-9, to eventually have a complete 9x9 grid filled with the numbers 1-9, where no numbers in any row, column, or 3x3 grid have two of the same number
How many square feet are in a room that measures 9X9?
90
What is 9x9 100 times?
8100
