n: 40 m: 222 packed: 13 density: 0 nodes: 0 solveTime: 1030 buildTime: 30 solved: true
{0,22,31}
{1,4,24}
{2,33,36}
{3,9,13}
{5,25,26}
{6,11,12}
{7,34,39}
{8,27,30}
{10,35,38}
{14,19,20}
{15,16,29}
{17,23,28}
{18,32,37}