n: 30 m: 459 packed: 10 density: 0 nodes: 0 solveTime: 17510 buildTime: 130 solved: true
{0,6,28}
{1,20,29}
{2,16,19}
{3,18,27}
{4,5,7}
{8,9,10}
{11,13,23}
{12,14,15}
{17,25,26}
{21,22,24}