n: 30 m: 155 packed: 10 density: 0 nodes: 0 solveTime: 420 buildTime: 20 solved: true
{0,9,20}
{1,7,19}
{2,10,18}
{3,8,22}
{4,6,17}
{5,16,28}
{11,14,21}
{12,13,24}
{15,26,27}
{23,25,29}