n: 40 m: 604 packed: 13 density: 0 nodes: 0 solveTime: 44160 buildTime: 220 solved: true
{0,9,26}
{1,13,23}
{2,29,31}
{3,4,12}
{5,6,11}
{7,10,19}
{8,25,27}
{15,16,21}
{17,38,39}
{18,22,37}
{20,24,30}
{28,32,34}
{33,35,36}