n: 40 m: 216 packed: 13 density: 0 nodes: 0 solveTime: 1430 buildTime: 30 solved: true
{0,18,21}
{1,20,35}
{2,12,26}
{3,19,25}
{4,8,38}
{5,6,32}
{7,13,28}
{9,29,37}
{10,27,30}
{11,16,22}
{14,23,39}
{15,17,33}
{24,34,36}