Some solutions for n=4
..1....3....0....1....4....1....1....0....4....4....3....2....3....4....4....2
..4....3....3....3....4....2....0....4....4....2....0....2....4....4....1....1
..4....0....1....2....0....1....4....4....4....4....1....1....2....3....4....0
..3....0....0....2....3....2....3....4....3....1....4....0....3....1....1....4
..0....3....1....1....0....3....3....0....0....3....3....4....0....2....3....3
..2....3....0....1....1....0....1....0....2....4....3....0....3....1....4....4
..4....3....2....2....3....4....0....2....3....0....2....3....0....2....2....1
..4....1....3....3....2....4....4....2....4....2....0....4....4....2....4....1
|