n: 30 m: 172 packed: 10 density: 0 nodes: 0 solveTime: 910 buildTime: 20 solved: true
{0,5,20}
{1,9,13}
{2,10,28}
{3,24,26}
{4,14,23}
{6,18,27}
{7,12,29}
{8,19,22}
{11,15,25}
{16,17,21}