n: 40 m: 589 packed: 13 density: 0 nodes: 0 solveTime: 16550 buildTime: 210 solved: true
{0,1,23}
{2,5,15}
{3,4,30}
{6,9,17}
{7,37,39}
{8,33,36}
{10,13,22}
{11,18,24}
{12,27,32}
{14,20,25}
{16,26,29}
{19,28,34}
{21,35,38}