Possibilities:

Sudoku Helper

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Click here to show the available options per cell.

Click here to start a New game. Show game string. Load a game string.

Available/Enabled algorithms:
☑ Pointing Pairs/Triples more info.
☑ Naked Pairs more info.
☑ Hidden Pairs more info.
☑ X-wing more info.
☑ Y-wing more info.

Notes:

9a8308d2c25b32f7d43ad069b3005d4f
False