n: 30 m: 466 packed: 10 density: 0 nodes: 0 solveTime: 21710 buildTime: 130 solved: true
{0,7,15}
{1,9,16}
{2,25,28}
{3,11,12}
{4,20,22}
{5,6,21}
{8,13,27}
{10,23,26}
{14,18,19}
{17,24,29}