n: 40 m: 324 packed: 13 density: 0 nodes: 0 solveTime: 2570 buildTime: 70 solved: true
{0,19,22}
{1,10,37}
{2,30,34}
{3,17,20}
{4,5,13}
{6,14,18}
{7,8,32}
{9,11,36}
{12,23,24}
{15,16,27}
{25,29,35}
{26,38,39}
{28,31,33}