Paperback (23 Sep 2019)
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Sudoku X also called Diagonal Sudoku.
The puzzle is a 6x6 grid made up of 3x2 subgrids (called "regions").
Some cells already contain numbers, known as "givens".
The goal is to fill in the empty cells, one number in each, so that each column, row, region and diagonal contains the numbers 1 through 6 exactly once.
Each number in the solution therefore occurs only once in each of three "directions", hence the "single numbers" implied by the puzzle's name.
| ISBN: | 9781695093256 |
| Publisher: | Independently Published |
| Imprint: | Independently Published |
| Pub date: | 23 Sep 2019 |
| Language: | English |
| Number of pages: | 138 |
| Weight: | 196g |
| Height: | 229mm |
| Width: | 152mm |
| Spine width: | 8mm |
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