Sudoku Susser 2.1.3
This is a comprehensive Sudoku assistant and master-level solver.
Hints mode shows you what numbers are legal for the remaining squares. The Deducer uses human-style reasoning to solve the puzzles and can take you step-by-step through their solution with detailed explanations of each step. The brute-force Recurse option solves all puzzles. Highlighting modes help you see the patterns in the puzzles. You can even drag puzzles right off the Web pages of major UK newspapers into the application, then edit, save and print them.