n: 30 m: 399 packed: 10 density: 0 nodes: 0 solveTime: 2850 buildTime: 90 solved: true
{0,3,6}
{1,9,26}
{2,21,22}
{4,7,19}
{5,14,27}
{8,17,25}
{10,11,24}
{12,13,16}
{15,23,28}
{18,20,29}