n: 40 m: 235 packed: 13 density: 0 nodes: 0 solveTime: 1710 buildTime: 30 solved: true
{0,15,25}
{1,19,24}
{2,5,6}
{3,7,26}
{4,17,30}
{8,9,20}
{10,13,21}
{11,23,35}
{12,22,33}
{14,34,36}
{18,29,31}
{27,32,39}
{28,37,38}