n: 40 m: 181 packed: 13 density: 0 nodes: 0 solveTime: 9770 buildTime: 20 solved: true
{0,3,15}
{1,12,20}
{2,23,25}
{4,7,22}
{5,19,30}
{6,9,21}
{8,14,27}
{10,32,34}
{11,24,39}
{13,16,35}
{17,33,37}
{18,26,29}
{31,36,38}