n: 30 m: 106 packed: 10 density: 0 nodes: 0 solveTime: 80 buildTime: 0 solved: true
{0,3,12}
{1,4,9}
{2,13,14}
{5,8,18}
{6,10,28}
{7,19,23}
{11,17,27}
{15,20,29}
{16,22,25}
{21,24,26}