n: 40 m: 508 packed: 13 density: 0 nodes: 0 solveTime: 36580 buildTime: 150 solved: true
{0,10,29}
{1,15,33}
{2,27,39}
{3,16,36}
{4,5,18}
{6,20,25}
{7,26,37}
{8,31,34}
{9,23,35}
{11,19,24}
{12,13,22}
{14,21,30}
{17,32,38}