n: 30 m: 306 packed: 10 density: 0 nodes: 0 solveTime: 2440 buildTime: 50 solved: true
{0,12,28}
{1,4,13}
{2,24,27}
{3,7,29}
{5,9,10}
{6,18,19}
{8,16,23}
{11,14,15}
{17,21,26}
{20,22,25}