n: 40 m: 220 packed: 13 density: 0 nodes: 0 solveTime: 10270 buildTime: 40 solved: true
{0,13,16}
{1,10,14}
{2,23,30}
{3,27,33}
{4,28,36}
{5,19,26}
{6,21,25}
{7,31,37}
{8,12,15}
{9,24,32}
{11,18,39}
{17,34,38}
{20,29,35}