n: 40 m: 358 packed: 13 density: 0 nodes: 0 solveTime: 3290 buildTime: 70 solved: true
{0,23,37}
{1,25,39}
{2,22,29}
{3,21,34}
{4,6,13}
{5,10,18}
{7,11,26}
{8,9,30}
{12,19,33}
{14,16,38}
{15,24,31}
{17,28,36}
{20,27,32}