n: 40 m: 317 packed: 13 density: 0 nodes: 0 solveTime: 2730 buildTime: 60 solved: true
{0,15,29}
{1,4,39}
{2,30,33}
{3,14,26}
{6,34,35}
{7,22,37}
{8,17,20}
{9,18,25}
{10,19,36}
{11,23,27}
{12,16,28}
{13,24,32}
{21,31,38}