n: 40 m: 330 packed: 13 density: 0 nodes: 0 solveTime: 2550 buildTime: 60 solved: true
{0,5,24}
{1,20,31}
{2,25,26}
{3,18,36}
{4,7,28}
{6,15,39}
{8,21,27}
{9,16,34}
{10,19,32}
{12,13,29}
{14,17,23}
{22,30,35}
{33,37,38}