OFFSET
1,2
EXAMPLE
Some solutions for 4X4
..1..6..6..1....0..0..3..4....1..1..1..6....0..0..0..0....4..2..4..2
..6..1..1..6....0..0..6..6....1..6..6..6....0..0..1..1....2..2..4..4
..6..1..6..6....3..6..1..1....1..6..1..1....0..1..1..1....4..4..2..1
..1..6..6..1....4..6..1..1....6..6..1..1....0..1..1..1....2..4..1..1
CROSSREFS
KEYWORD
nonn
AUTHOR
R. H. Hardin Jul 27 2011
STATUS
approved