n: 30 m: 308 packed: 10 density: 0 nodes: 0 solveTime: 2900 buildTime: 70 solved: true
{0,9,15}
{1,23,28}
{2,21,26}
{3,18,20}
{4,22,27}
{5,11,25}
{6,8,24}
{7,12,19}
{10,16,29}
{13,14,17}