hexadoku

noun4

1. •
   A variant of sudoku, using hexadecimal digits
2. •
   A 15x15 grid sudoku, using hex numerals "1, 2, 3, ..., d, e, f"
3. •
   A 16x16 grid sudoku, using hex numerals "0, 1, 2, 3, ..., d, e, f"
4. •
   A 16x16 grid sudoku variant, using symbols "1, 2, 3, 4, 5, 6, 7, 8, 9, a, b, c, d, e, f, g"