n: 30 m: 321 packed: 10 density: 0 nodes: 0 solveTime: 1240 buildTime: 60 solved: true
{0,3,4}
{1,17,27}
{2,21,28}
{5,7,13}
{6,24,25}
{8,20,23}
{9,11,18}
{10,12,26}
{14,19,29}
{15,16,22}