n: 40 m: 597 packed: 13 density: 0 nodes: 0 solveTime: 31840 buildTime: 210 solved: true
{0,31,36}
{1,2,27}
{3,7,37}
{4,10,21}
{5,32,35}
{6,34,39}
{8,9,26}
{11,30,38}
{12,25,28}
{13,23,33}
{14,19,29}
{15,17,18}
{16,20,22}