Medium Sudoku #738327 https://www.livesudoku.com/en/sudoku/medium/738327
Medium Sudoku #673835 https://www.livesudoku.com/en/sudoku/medium/673835
Hard Sudoku #1287173 https://www.livesudoku.com/en/sudoku/hard/1287173
Beginners Sudoku #387953 https://www.livesudoku.com/en/sudoku/easy/387953
Medium Sudoku #899009 https://www.livesudoku.com/en/sudoku/medium/899009
Evil Sudoku #1766241 https://www.livesudoku.com/en/sudoku/evil/1766241
Medium Sudoku #782226 https://www.livesudoku.com/en/sudoku/medium/782226
Medium Sudoku #873442 https://www.livesudoku.com/en/sudoku/medium/873442
Beginners Sudoku #12658 https://www.livesudoku.com/en/sudoku/easy/12658
Medium Sudoku #960179 https://www.livesudoku.com/en/sudoku/medium/960179