n: 30 m: 259 packed: 10 density: 0 nodes: 0 solveTime: 1700 buildTime: 40 solved: true
{0,17,20}
{1,4,11}
{2,5,6}
{3,8,13}
{7,21,28}
{9,14,25}
{10,22,27}
{12,19,26}
{15,16,18}
{23,24,29}