n: 30 m: 312 packed: 10 density: 0 nodes: 0 solveTime: 2990 buildTime: 60 solved: true
{0,19,29}
{1,15,23}
{2,6,14}
{3,16,26}
{4,10,13}
{5,7,9}
{8,18,27}
{11,17,20}
{12,24,28}
{21,22,25}