n: 30 m: 251 packed: 10 density: 0 nodes: 0 solveTime: 6900 buildTime: 40 solved: true
{0,6,15}
{1,9,23}
{2,19,27}
{3,26,29}
{4,11,18}
{5,8,16}
{7,24,28}
{10,22,25}
{12,14,17}
{13,20,21}