n: 40 m: 238 packed: 13 density: 0 nodes: 0 solveTime: 920 buildTime: 30 solved: true
{0,27,31}
{1,25,26}
{2,15,36}
{3,7,11}
{4,8,17}
{5,12,24}
{6,22,33}
{9,32,34}
{10,19,28}
{13,29,30}
{14,16,20}
{18,38,39}
{23,35,37}