n: 40 m: 331 packed: 13 density: 0 nodes: 0 solveTime: 5420 buildTime: 60 solved: true
{0,9,12}
{1,11,22}
{2,10,37}
{3,19,24}
{4,6,8}
{5,17,39}
{13,16,26}
{14,21,27}
{15,33,34}
{18,20,30}
{23,25,32}
{28,35,38}
{29,31,36}