n: 30 m: 261 packed: 10 density: 0 nodes: 0 solveTime: 2560 buildTime: 40 solved: true
{0,6,17}
{1,13,14}
{2,5,19}
{3,16,25}
{4,7,21}
{8,15,26}
{9,12,22}
{10,18,29}
{11,23,24}
{20,27,28}