n: 40 m: 224 packed: 13 density: 0 nodes: 0 solveTime: 1260 buildTime: 30 solved: true
{0,18,39}
{1,10,32}
{2,19,30}
{3,20,26}
{4,9,37}
{5,13,16}
{6,8,29}
{7,23,28}
{11,14,31}
{12,25,36}
{15,21,38}
{22,24,34}
{27,33,35}