n: 30 m: 171 packed: 10 density: 0 nodes: 0 solveTime: 450 buildTime: 20 solved: true
{0,8,21}
{1,14,23}
{2,5,6}
{3,4,22}
{7,13,16}
{9,20,27}
{10,18,25}
{11,12,26}
{15,17,28}
{19,24,29}