I'd like to see the program be capable of dubbing puzzles in symbols other than letters or numbers. Today I tried a 'Footsie-Sudoku' that contains only footsie related symbols, I think the puzzle is invalid and would like to check that.
Luna
+---+---+---+
|2--|-58|4--|
|--5|---|237|
|1-9|-42|---|
+---+---+---+
|---|57-|8--|
|59-|286|-74|
|--2|-34|---|
+---+---+---+
|---|42-|3-1|
|371|---|94-|
|--6|91-|--5|
+---+---+---+
+---+---+---+
|1000|01011000|10000|
|00101|000|1011111|
|101001|010010|000|
+---+---+---+
|000|1011110|100000|
|10110010|101000110|0111100|
|0010|011100|000|
+---+---+---+
|000|100100|1101|
|111111|000|10011000|
|00110|100110|00101|
+---+---+---+