This Sudoku puzzle creation enables a much faster process in figuring out a hard to very hard puzzle versus having to separately write on paper. I had a super-hard puzzle from The Week magazine that I know through the manual method would have taken an hour to solve. I solved the puzzle in half the time as it’s much easier to visually see all the possible numbers as well as patterns that helped me eliminate numbers within a row, column or box!
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Response from developer
Thank you for playing this Sudoku puzzle creation.
I'm the Japanese who made this app.
I also like the Sudoku puzzle and made this game to play efficiently.
I'm very happy that you enjoyed it in the same way.
Please continue to enjoy this app :)