OFFSET
5,1
EXAMPLE
5 X 5; 6 X 6; 7 X 7; 8 X 8; Center-square +4Queens separated as if 1,2 knights.
at 11 X 11 and beyond this pattern seems to be 'best'.
x x x x x x x x
x x x x x x x x
x x Q x x x x x
x x x x x Q x x
x x x Q x x x x
x Q x x x x x x
x x x x Q x x x
x x x x x x x x
9 X 9; 10 X 10; 11 X 11; Center-square +4Queens separated as 2,4 knights.
x x x x x x x x x x x
x x x x x x x Q x x x
x x x x x x x x x x x
x Q x x x x x x x x x
x x x x x x x x x x x
x x x x x Q x x x x x
x x x x x x x x x x x
x x x x x x x x x Q x
x x x x x x x x x x x
x x x Q x x x x x x x
x x x x x x x x x x x
CROSSREFS
KEYWORD
nonn,more
AUTHOR
John King, Aug 08 2024
EXTENSIONS
Unverified a(19) removed by Andrew Howroyd, Oct 05 2024
STATUS
approved