n: 30 m: 321 packed: 10 density: 0 nodes: 0 solveTime: 2280 buildTime: 70 solved: true
{0,7,23}
{1,9,15}
{2,21,27}
{3,5,14}
{4,6,19}
{8,13,25}
{10,12,26}
{11,18,20}
{16,24,28}
{17,22,29}