“Interlocked Sudoku 9×9” Puzzle Rules:
This puzzle consists of two overlapping 9×9 Sudoku grids.
Fill in digits 1–9 so that in each grid every row, column, and 3×3 box contains the digits 1–9 exactly once.
The shaded (overlapping) cells are shared by both Sudokus and must satisfy the rules of both grids.
Neither grid can be solved on its own — solve them together to complete the puzzle.
Solution of this Interlocked Sudoku 9×9 can be viewed by clicking on button. Please do give your best try to solve this Sudoku puzzle before looking at the answer.
Link to solve it online: Penpa+
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