n: 30 m: 223 packed: 10 density: 0 nodes: 0 solveTime: 1130 buildTime: 30 solved: true
{0,3,7}
{1,8,9}
{2,4,18}
{5,19,21}
{6,28,29}
{10,24,26}
{11,15,27}
{12,14,25}
{13,16,20}
{17,22,23}