n: 40 m: 626 packed: 13 density: 0 nodes: 0 solveTime: 47920 buildTime: 230 solved: true
{0,8,11}
{1,10,17}
{2,4,9}
{3,32,37}
{5,6,18}
{12,19,25}
{13,21,30}
{14,29,31}
{15,33,38}
{16,23,35}
{20,28,36}
{22,24,34}
{26,27,39}