n: 30 m: 107 packed: 10 density: 0 nodes: 0 solveTime: 110 buildTime: 10 solved: true
{0,12,21}
{1,15,23}
{2,6,27}
{3,7,28}
{4,5,19}
{8,11,24}
{9,25,29}
{10,13,14}
{16,17,18}
{20,22,26}