Evil Sudoku #1577640 https://www.livesudoku.com/en/sudoku/evil/1577640

Medium Sudoku #785011 https://www.livesudoku.com/en/sudoku/medium/785011

Beginners Sudoku #222324 https://www.livesudoku.com/en/sudoku/easy/222324

Medium Sudoku #617425 https://www.livesudoku.com/en/sudoku/medium/617425

Medium Sudoku #983072 https://www.livesudoku.com/en/sudoku/medium/983072

Hard Sudoku #1084252 https://www.livesudoku.com/en/sudoku/hard/1084252

Medium Sudoku #993097 https://www.livesudoku.com/en/sudoku/medium/993097

Medium Sudoku #669066 https://www.livesudoku.com/en/sudoku/medium/669066

Medium Sudoku #855007 https://www.livesudoku.com/en/sudoku/medium/855007

Hard Sudoku #1206147 https://www.livesudoku.com/en/sudoku/hard/1206147