About Sudobility
Sudobility is a line of iPhone apps by River Past Corporation.
Started with Sudoku, then into other things
Sudobiliy is created by some Sudoku addicts.
While it was fun to solve the puzzles, it is even more fun to write code to solve them. Starting as a hobby, we decided to make it a teaching tool, so the software will solve the puzzle in a human way (no brutal force!) and explain the steps as it go along.