n: 40 m: 385 packed: 13 density: 0 nodes: 0 solveTime: 4480 buildTime: 80 solved: true
{0,21,33}
{1,4,15}
{2,17,31}
{3,6,20}
{5,13,14}
{7,22,37}
{8,23,25}
{9,12,27}
{10,16,32}
{11,34,38}
{18,30,35}
{19,24,39}
{26,29,36}