n: 30 m: 348 packed: 10 density: 0 nodes: 0 solveTime: 5140 buildTime: 70 solved: true
{0,9,18}
{1,7,19}
{2,25,27}
{3,6,20}
{4,5,10}
{8,12,15}
{11,26,28}
{13,22,23}
{14,21,29}
{16,17,24}