n: 40 m: 564 packed: 13 density: 0 nodes: 0 solveTime: 40150 buildTime: 180 solved: true
{0,9,16}
{1,10,19}
{2,6,20}
{3,8,27}
{4,11,22}
{5,21,33}
{12,30,31}
{13,24,28}
{14,17,25}
{15,34,37}
{18,26,35}
{23,32,39}
{29,36,38}