n: 30 m: 81 packed: 10 density: 0 nodes: 0 solveTime: 110 buildTime: 0 solved: true
{0,8,13}
{1,5,18}
{2,26,29}
{3,14,15}
{4,7,19}
{6,11,24}
{9,16,27}
{10,25,28}
{12,17,23}
{20,21,22}