n: 40 m: 196 packed: 13 density: 0 nodes: 0 solveTime: 540 buildTime: 20 solved: true
{0,21,23}
{1,29,30}
{2,26,27}
{3,24,25}
{4,22,33}
{5,8,31}
{6,13,18}
{7,20,28}
{9,11,34}
{10,37,38}
{12,32,35}
{14,19,36}
{15,17,39}