n: 40 m: 274 packed: 13 density: 0 nodes: 0 solveTime: 3370 buildTime: 50 solved: true
{0,25,26}
{1,21,22}
{2,16,27}
{3,14,37}
{4,18,31}
{5,11,19}
{6,9,12}
{7,17,36}
{8,13,38}
{10,28,29}
{15,33,34}
{20,24,35}
{23,30,32}