n: 40 m: 361 packed: 13 density: 0 nodes: 0 solveTime: 5430 buildTime: 90 solved: true
{0,19,37}
{1,16,26}
{2,5,23}
{3,27,35}
{4,9,21}
{6,31,36}
{7,29,34}
{8,33,38}
{10,14,20}
{11,15,32}
{12,13,39}
{17,22,25}
{24,28,30}