n: 40 m: 131 packed: 13 density: 0 nodes: 0 solveTime: 420 buildTime: 10 solved: true
{0,19,29}
{1,17,39}
{2,9,23}
{3,13,16}
{4,25,32}
{5,22,35}
{6,30,36}
{8,18,26}
{10,15,38}
{11,20,34}
{12,24,37}
{14,28,33}
{21,27,31}