n: 30 m: 514 packed: 10 density: 0 nodes: 0 solveTime: 27420 buildTime: 160 solved: true
{0,3,12}
{1,2,9}
{4,7,15}
{5,18,27}
{6,16,20}
{8,14,19}
{10,13,26}
{11,22,28}
{17,21,25}
{23,24,29}