Fortunately, I'm not a fan of Sudoku, so I don't feel compelled to solve it.
To map this to Sudoku, though, don't you need to specify that there is a 9th (unnamed) student, and that every college got asked about each of its relevant topics exactly once?
no subject
To map this to Sudoku, though, don't you need to specify that there is a 9th (unnamed) student, and that every college got asked about each of its relevant topics exactly once?