Sudoku

'Sudoku Adviser - Nizze'

Soduku-Adviser is your knowledgeable partner, called 'Nizze' (inspiration of IKEA), who supports you and quickly gives you feasable advise to improve your knowledge about sudokus. The Adivser solves the problem while you are entering it. The program has a lot of different settings making it possible for you to select the level of help you need right now. This gives you what you need to improve your skills in a very short time. The levels are None, Some, Medium, More and All, or you could select your own level suiting you depending on your skill and the difficulty of the problem.

Nizze's idea about Sudokus is - keep away from too detailed analysis. If the sudoku is solveable without to much analysis and 'pencil-marks' Nizze likes it. If you are stuck, we think a good guess is much more fun than hard analysis. If putting up pencil-marks manually with all errors involved is not your idea of Sudokus your are on the right spot.

We think all focus should be on safe number and nothing else. We divide those numbers into four groups, they could be divided into two but since looking for them involves different methods we think four is better.

Only Place in Box OPB:	Usual in the begining of a Sudoku problem, especially the easy ones which could often be solved with only OPB and OPN.
Only Possible Number - OPN.	If only one number is missing in a box, row or column this must be the one to set.
Only Place Across - OPA.	Relative to OPB but in rows instead. Not always easy to find, at least not in the begining of a Sudoku. More usual and useful at the end of the solution.
Only Place Down - OPD.	Totally analogous to OPA but downwards instead.