n: 40 m: 417 packed: 13 density: 0 nodes: 0 solveTime: 8270 buildTime: 100 solved: true
{0,23,37}
{1,2,18}
{3,16,25}
{4,31,32}
{5,11,19}
{6,8,24}
{7,27,38}
{9,35,36}
{10,14,26}
{12,28,39}
{13,15,34}
{17,20,21}
{29,30,33}