n: 40 m: 608 packed: 13 density: 0 nodes: 0 solveTime: 28880 buildTime: 210 solved: true
{0,15,33}
{1,16,27}
{2,4,7}
{3,6,34}
{5,9,21}
{8,22,30}
{10,11,19}
{13,26,32}
{14,18,24}
{17,29,36}
{20,31,39}
{23,28,38}
{25,35,37}