n: 30 m: 391 packed: 10 density: 0 nodes: 0 solveTime: 13000 buildTime: 100 solved: true
{0,20,21}
{1,13,27}
{2,10,11}
{3,4,8}
{5,6,9}
{7,16,19}
{12,18,26}
{14,24,29}
{15,22,28}
{17,23,25}