n: 40 m: 596 packed: 13 density: 0 nodes: 0 solveTime: 29210 buildTime: 210 solved: true
{0,31,32}
{1,16,33}
{2,3,7}
{4,38,39}
{5,29,37}
{6,12,19}
{8,10,15}
{9,21,34}
{11,14,24}
{17,27,36}
{18,25,26}
{20,22,30}
{23,28,35}