I'm working on a Samurai puzzle (tarek's Regular Samurai #16B, to be exact). I got all of the grids except #1, but got stuck, so I fired up SudokuSolver to give me a hint. I entered all of the solved cells, and the program then reported "Puzzle complete", presumably because the center grid is solved. However, I don't consider it complete because I still haven't finished solving grid #1. Now it won't give me any hints.
Then I tried using the "Step" function, but got the following error:
Quote:
Unexpected error in Solver: System.NullReferenceException: Object reference not set to an instance of an object.
at WindowsApplication1.Solver.setTupleHouseFound(Int32 iGrid, HouseTypes houseType, Int32 iHouse, Int32 iTuple)
at WindowsApplication1.Solver.setTupleHouseFound(Int32 iGrid, Int32 iCell, Int32 iTuple)
at WindowsApplication1.Solver.PlaceAllKnowns()
at WindowsApplication1.Solver.Find_All_Naked_Singles()
at WindowsApplication1.Solver.SolverIteration(Boolean allowComplex)
HELP!!