n: 40 m: 336 packed: 13 density: 0 nodes: 0 solveTime: 5140 buildTime: 70 solved: true
{0,7,9}
{1,29,30}
{2,3,23}
{4,13,28}
{5,36,37}
{6,10,32}
{8,25,38}
{11,15,19}
{12,16,18}
{14,24,27}
{17,26,34}
{21,35,39}
{22,31,33}