From Ajt Soft:
Free sudoku creator and solver. Ajt Sudoku has four difficulty levels and three hint options. Can be used to play sudoku or for solving puzzles found in newspapers and magazines. Has very fast and comfortable user interface, allowing entering numbers by selecting them directly in fields, without moving mouse out of the board and back each time. Every puzzle in any stage can be printed out or pasted via clipboard in vector form into a document, allowing easy publications, for example in newspapers.