Killer Sudoku Puzzle Games

I agree The puzzles do not have a unique solution it’s annoying when a correct solution is rejected because it doesn’t match the developer solution. So I wish that it would advise you of an error before you got too far into the puzzle like the original Sudoku does

I’m new to Killer Sudoku, though I have a lot of experience with ordinary Sudokus and some expanded versions of Sudoku. This app is well designed and enjoyable, but I have noticed three flaws. One is that multiple totals sometimes appear within the borders of a cage. This can be handled by leaving the puzzle and reselecting it, which often requires the reentry of some numbers in the puzzle. A second flaw is that quite a few of the puzzles do not have unique solutions. It is really annoying when a correct solution is rejected because it does not match the developer’s solution. The third flaw is that the rules don’t mention the important fact that a number cannot be repeated within a cage. One last thing is a minor quibble. I don’t like the style of the number nine, which looks more like a q. A curvier nine with no serif would be preferable.

Excellent challenge! Very user friendly. Am halfway through the hard puzzles and hope new games are added when I am done.