The EA sudoku app that comes with Amazon's Kindle will often reject the Saturday (most difficult) newspaper sudoku that is published by the Raleigh NC News & Observer. This last one was found by Stuart's solver to have a unique solution, requiring only a Ywing to solve, but the EA app said that it was unsolvable:
.74..1...1....274.......6..5..83...6.619.537.8...16..5..3.......582....3...1..25.
I like N&O's sudokus. Most sudokus provided by EA, even at the "insane" level, which are usually tedious, often don't require advanced techniques. Is there some other App that I can use on a Kindle that would accept newspaper sudokus?
