Greater than sudoku solver

This program solves a greater than sudoku puzzle that has unique solution instantly.

1. Input the "greater than" signs for each cell.

2. Press the "S" button on the top right corner, the puzzle will be solved.

Windows 8 version

http://apps.microsoft.com/windows/zh-TW/app/greaterthan-sudoku-solver/42241b94-4efd-4173-b01f-778a1b4f4685