n: 40 m: 153 packed: 13 density: 0 nodes: 0 solveTime: 5750 buildTime: 20 solved: true
{0,21,35}
{1,18,34}
{2,7,15}
{3,27,38}
{4,28,37}
{5,12,20}
{6,25,36}
{9,16,23}
{10,26,33}
{11,13,17}
{14,29,30}
{19,31,39}
{22,24,32}