n: 40 m: 117 packed: 13 density: 0 nodes: 0 solveTime: 450 buildTime: 10 solved: true
{0,21,26}
{1,35,37}
{2,9,14}
{3,22,25}
{4,5,36}
{6,15,18}
{7,8,29}
{10,11,34}
{12,16,24}
{13,31,39}
{17,28,32}
{19,20,30}
{23,27,33}