n: 40 m: 792 packed: 13 density: 0 nodes: 0 solveTime: 89960 buildTime: 370 solved: true
{0,16,31}
{1,5,32}
{2,3,10}
{4,11,38}
{7,36,39}
{8,17,25}
{9,14,34}
{12,18,37}
{13,30,33}
{15,22,29}
{19,27,35}
{20,23,26}
{21,24,28}