n: 40 m: 755 packed: 13 density: 0 nodes: 0 solveTime: 145560 buildTime: 330 solved: true
{0,12,25}
{1,15,29}
{2,23,35}
{3,4,8}
{5,13,21}
{6,7,10}
{9,22,38}
{14,19,30}
{16,17,34}
{18,26,33}
{20,28,31}
{24,37,39}
{27,32,36}