n: 30 m: 502 packed: 10 density: 0 nodes: 0 solveTime: 19820 buildTime: 150 solved: true
{0,20,22}
{1,3,21}
{2,24,29}
{4,7,11}
{5,6,17}
{8,14,25}
{9,13,28}
{10,26,27}
{12,18,19}
{15,16,23}