n: 40 m: 510 packed: 13 density: 0 nodes: 0 solveTime: 29070 buildTime: 140 solved: true
{0,20,34}
{1,4,8}
{2,5,19}
{3,11,38}
{6,13,30}
{7,33,39}
{9,10,14}
{12,35,36}
{15,28,31}
{16,17,25}
{21,26,27}
{22,24,37}
{23,29,32}