Beginners Sudoku #203218 https://www.livesudoku.com/en/sudoku/easy/203218

Medium Sudoku #541129 https://www.livesudoku.com/en/sudoku/medium/541129

Hard Sudoku #1077685 https://www.livesudoku.com/en/sudoku/hard/1077685

Hard Sudoku #1415336 https://www.livesudoku.com/en/sudoku/hard/1415336

Hard Sudoku #1364146 https://www.livesudoku.com/en/sudoku/hard/1364146

Medium Sudoku #824097 https://www.livesudoku.com/en/sudoku/medium/824097

Beginners Sudoku #92089 https://www.livesudoku.com/en/sudoku/easy/92089

Beginners Sudoku #26101 https://www.livesudoku.com/en/sudoku/easy/26101

Medium Sudoku #932217 https://www.livesudoku.com/en/sudoku/medium/932217

Beginners Sudoku #313879 https://www.livesudoku.com/en/sudoku/easy/313879