n: 40 m: 617 packed: 13 density: 0 nodes: 0 solveTime: 286270 buildTime: 220 solved: true
{0,34,37}
{1,4,16}
{2,15,29}
{3,13,31}
{5,11,12}
{6,19,30}
{7,10,32}
{8,14,39}
{9,27,35}
{17,36,38}
{18,20,23}
{21,24,28}
{22,26,33}