Sudoku 4 in 1

Place numbers 1 to 9 in overlapping Sudoku grids by matching digits logically to complete four puzzles simultaneously. Each grid shares its border cells with adjacent puzzles, requiring careful cross-referencing of rows and columns to fill all cells without conflicts. Strategy revolves around managing multiple interconnected boards to solve layered numeric logic challenges. Key Features • Four overlapping Sudoku grids • Cross-grid number matching logic • Logical digit placement control • Progressive puzzle difficulty levels • Interlinked multi-board challenge