n: 30 m: 257 packed: 10 density: 0 nodes: 0 solveTime: 1480 buildTime: 40 solved: true
{0,19,25}
{1,5,7}
{2,4,17}
{3,15,21}
{6,10,29}
{8,11,28}
{9,13,16}
{12,18,23}
{14,22,26}
{20,24,27}