I've inserted via cut and paste and via manual entry the following puzzle into SudoCue:
..84.2....2....1..4....562.1..34.7.9...2.9...3.9.17..6.419....2..5....8....5.14..
SudoCue gives the "Too Difficult Sudoku" Error and once I hit OK, it will declare the puzzle to be invalid. All techniques are turned on. What seems to be the relevant solver order choices are:
Skyscraper
2-String Kite
X-wing
If I switch the solver order to
X-wing
Skyscraper
2-String Kite
then SudoCue gives no such error message and declares the puzzle to be valid and solves it with no problem.
Any thoughts?
Out of Place "Too Difficult Sudoku" Error
Out of Place "Too Difficult Sudoku" Error
"Obviousness is always the enemy to correctness."-Bertrand Russell