n: 40 m: 405 packed: 13 density: 0 nodes: 0 solveTime: 10260 buildTime: 100 solved: true
{0,7,19}
{1,6,30}
{2,22,26}
{3,9,18}
{4,5,11}
{10,35,36}
{12,16,28}
{13,24,33}
{14,15,23}
{17,20,21}
{25,34,38}
{27,32,39}
{29,31,37}