n: 40 m: 352 packed: 13 density: 0 nodes: 0 solveTime: 3410 buildTime: 80 solved: true
{0,13,17}
{1,27,39}
{2,21,28}
{3,15,26}
{4,14,18}
{5,23,34}
{6,19,37}
{7,24,33}
{8,29,35}
{9,16,25}
{10,11,22}
{12,30,36}
{20,31,32}