n: 30 m: 257 packed: 10 density: 0 nodes: 0 solveTime: 2900 buildTime: 40 solved: true
{0,12,25}
{1,5,24}
{2,7,14}
{3,22,27}
{4,6,10}
{8,13,18}
{9,19,29}
{11,23,26}
{15,17,28}
{16,20,21}