n: 30 m: 126 packed: 10 density: 0 nodes: 0 solveTime: 500 buildTime: 20 solved: true
{0,18,20}
{1,2,23}
{3,6,28}
{4,13,26}
{5,10,21}
{7,16,22}
{8,11,14}
{9,15,25}
{12,17,29}
{19,24,27}