3 stars: I love sudoku challenge 16x16 and this is the best app I've found so far. However, I rated this app with only 3 stars because the biggest problem for me is that the colors of the grid make the numbers and letters so hard to see. It's hard to work on a puzzle when you have to squint your eyes just to read the chart. However, if this problem can be fixed I will happily change my rating.
3 stars: Challenging puzzles but difficult to keep track of how many of each number/letter you have already placed
5 stars: love it. very hard. mayhem and guru levels can be solved with no guessing. just started insane level. great challenge for sudoku lovers.
4 stars: Overall good game. Definitely challenging. Would like to be able to highlight numbers and/or check for errors.
5 stars: Really challenging game I finished insane 8,9,10 in level 3 Really it's very hard But I love it \ud83d\ude0d\ud83d\ude0d\ud83d\ude0d
5 stars: Loads of challenging FUN! Especially Diagonals and giants!
4 stars: My 1st taste of 16x16. I loved it. Awaiting the new breed of big sodokus. I hear 81x81 is available. Hint.
5 stars: been looking for 16x16, great challenge
5 stars: Man that's the most amazing thing that i know
5 stars: Having fun
5 stars: \u2764
5 stars: Quite challenging. Especially since it does not provide some of the visual aides that other puzzles provide. A bit more work needed to accomplish the puzzles and I really like it that way.
5 stars: ...