n: 40 m: 313 packed: 13 density: 0 nodes: 0 solveTime: 5850 buildTime: 60 solved: true
{0,17,27}
{1,19,26}
{2,11,20}
{3,16,37}
{4,5,6}
{7,8,31}
{9,33,34}
{10,21,22}
{12,30,36}
{13,14,24}
{15,28,32}
{18,25,29}
{35,38,39}