Beginners Sudoku #59412 https://www.livesudoku.com/en/sudoku/easy/59412

Beginners Sudoku #420293 https://www.livesudoku.com/en/sudoku/easy/420293

Evil Sudoku #1659477 https://www.livesudoku.com/en/sudoku/evil/1659477

Hard Sudoku #1329859 https://www.livesudoku.com/en/sudoku/hard/1329859

Beginners Sudoku #475228 https://www.livesudoku.com/en/sudoku/easy/475228

Beginners Sudoku #3561 https://www.livesudoku.com/en/sudoku/easy/3561

Beginners Sudoku #410192 https://www.livesudoku.com/en/sudoku/easy/410192

Hard Sudoku #1267663 https://www.livesudoku.com/en/sudoku/hard/1267663

Hard Sudoku #1468064 https://www.livesudoku.com/en/sudoku/hard/1468064

Medium Sudoku #661798 https://www.livesudoku.com/en/sudoku/medium/661798