n: 30 m: 286 packed: 10 density: 0 nodes: 0 solveTime: 1900 buildTime: 50 solved: true
{0,17,21}
{1,4,19}
{2,5,11}
{3,12,14}
{6,7,16}
{8,18,20}
{9,10,13}
{15,28,29}
{22,23,26}
{24,25,27}