n: 40 m: 331 packed: 13 density: 0 nodes: 0 solveTime: 5040 buildTime: 70 solved: true
{0,21,39}
{1,16,35}
{2,10,19}
{4,7,25}
{5,8,34}
{6,9,11}
{12,15,32}
{13,23,26}
{14,29,31}
{17,20,30}
{18,22,24}
{27,33,36}
{28,37,38}