n: 40 m: 492 packed: 13 density: 0 nodes: 0 solveTime: 21260 buildTime: 140 solved: true
{0,16,22}
{1,15,23}
{2,3,21}
{4,6,27}
{5,28,36}
{7,30,35}
{8,33,34}
{9,26,37}
{10,14,25}
{11,31,38}
{12,29,39}
{13,18,19}
{17,24,32}