n: 40 m: 157 packed: 13 density: 0 nodes: 0 solveTime: 180 buildTime: 30 solved: true
{0,16,25}
{1,4,31}
{2,18,23}
{3,19,20}
{5,27,30}
{6,17,35}
{7,12,26}
{8,21,28}
{9,22,38}
{10,14,34}
{11,13,33}
{15,36,39}
{24,29,32}