n: 40 m: 306 packed: 13 density: 0 nodes: 0 solveTime: 7420 buildTime: 50 solved: true
{0,9,37}
{1,24,39}
{2,10,14}
{3,26,35}
{4,13,30}
{5,20,31}
{6,34,36}
{8,19,32}
{11,16,25}
{12,23,29}
{15,28,38}
{17,18,33}
{21,22,27}