n: 30 m: 237 packed: 10 density: 0 nodes: 0 solveTime: 3730 buildTime: 40 solved: true
{0,9,12}
{1,4,27}
{2,6,10}
{3,5,8}
{7,21,26}
{11,14,19}
{13,17,25}
{15,16,18}
{20,28,29}
{22,23,24}