OFFSET
1,5
EXAMPLE
Some solutions for 5X5
..0..0..2..2..2....0..0..1..2..4....0..0..0..2..4....0..0..0..2..2
..0..1..1..2..0....0..1..1..2..4....0..0..1..2..4....0..1..1..3..2
..2..1..3..3..0....1..1..1..3..3....0..1..1..3..4....0..1..1..3..4
..2..2..3..3..4....2..2..3..0..0....2..2..3..3..3....2..3..3..3..4
..2..0..0..4..4....4..4..3..0..0....4..4..4..3..3....2..2..4..4..4
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 09 2011
STATUS
approved