n: 30 m: 416 packed: 10 density: 0 nodes: 0 solveTime: 9310 buildTime: 100 solved: true
{0,9,18}
{1,3,10}
{2,20,27}
{4,7,11}
{5,6,15}
{8,22,25}
{12,13,28}
{14,16,19}
{17,23,26}
{21,24,29}