n: 40 m: 480 packed: 13 density: 0 nodes: 0 solveTime: 18420 buildTime: 130 solved: true
{0,5,27}
{1,6,13}
{2,3,8}
{4,29,35}
{9,18,38}
{10,24,32}
{11,17,22}
{12,14,25}
{15,20,26}
{16,23,39}
{19,36,37}
{21,28,30}
{31,33,34}