n: 40 m: 378 packed: 13 density: 0 nodes: 0 solveTime: 7230 buildTime: 70 solved: true
{0,9,26}
{1,20,31}
{2,3,35}
{4,6,15}
{5,12,30}
{7,8,13}
{11,33,39}
{14,24,37}
{16,17,18}
{19,29,34}
{21,25,36}
{22,27,28}
{23,32,38}