Tripledoku is a fascinating variant of the classic Sudoku puzzle. It involves not just one, but three Sudoku grids, each of size 9x9, arranged in a particular manner. The challenge is to fill in all three grids according to standard Sudoku rules while also adhering to any additional constraints that the Tripledoku variant may impose.
- Grid Structure: Each of the three 9x9 grids is further divided into smaller 3x3 boxes.
- Number Placement: Numbers 1 through 9 must be placed in each row, column, and 3x3 box.
- No Repetition: No number can be repeated in any row, column, or 3x3 box within each 9x9 grid.
- Inter-Grid Consistency: In some Tripledoku puzzles, the arrangement of numbers in corresponding rows or columns across the three grids may need to adhere to specific rules or patterns.
- Clue Symmetry: Often, the given clues are symmetrically placed across the three grids to maintain a visual balance and uniformity.
Basic Solving Tips
- Start with Given Numbers: Begin by identifying and filling in the definite numbers using the given clues.
- Single Possibility: Look for rows, columns, or boxes where a number can only go in one place.
- Elimination: Use the process of elimination to determine where numbers cannot go, thereby identifying where they can go.
- Look for Grid Intersections: Pay attention to how the placement of a number in one grid might affect the possible placements in the adjacent grids.
- Use Pencil Marks: Make small pencil marks of possible numbers in a cell and update them as you gather more information.
- Focus on a Single Grid: Sometimes focusing on solving one grid (if possible) can provide clues for solving the others.