n: 30 m: 131 packed: 10 density: 0 nodes: 0 solveTime: 140 buildTime: 10 solved: true
{0,18,19}
{1,6,21}
{2,17,26}
{3,13,24}
{4,7,28}
{5,9,11}
{8,14,27}
{10,22,25}
{12,16,29}
{15,20,23}