n: 40 m: 320 packed: 13 density: 0 nodes: 0 solveTime: 4960 buildTime: 60 solved: true
{0,12,21}
{1,20,33}
{2,8,34}
{3,13,35}
{4,11,27}
{5,18,29}
{6,19,32}
{7,9,14}
{10,22,38}
{15,28,31}
{16,24,39}
{17,26,37}
{23,25,30}