n: 30 m: 240 packed: 10 density: 0 nodes: 0 solveTime: 1270 buildTime: 30 solved: true
{0,9,25}
{1,11,29}
{2,5,27}
{3,4,19}
{6,7,23}
{8,16,18}
{10,14,20}
{12,13,22}
{15,26,28}
{17,21,24}