n: 40 m: 526 packed: 13 density: 0 nodes: 0 solveTime: 24730 buildTime: 160 solved: true
{0,1,11}
{2,26,27}
{3,5,19}
{4,37,39}
{6,15,21}
{8,18,38}
{9,25,35}
{10,30,32}
{12,17,36}
{13,16,22}
{14,20,31}
{23,33,34}
{24,28,29}