n: 40 m: 258 packed: 13 density: 0 nodes: 0 solveTime: 1610 buildTime: 40 solved: true
{0,11,23}
{1,27,28}
{2,19,33}
{3,16,31}
{4,5,29}
{6,18,38}
{7,9,30}
{8,24,39}
{10,12,17}
{13,22,35}
{14,15,32}
{20,25,37}
{21,26,36}