n: 40 m: 276 packed: 13 density: 0 nodes: 0 solveTime: 2230 buildTime: 50 solved: true
{0,26,30}
{1,10,27}
{2,3,25}
{4,16,34}
{5,36,39}
{6,11,13}
{7,9,28}
{12,14,29}
{15,17,22}
{18,21,37}
{19,20,24}
{23,32,33}
{31,35,38}