n: 40 m: 732 packed: 13 density: 0 nodes: 0 solveTime: 401740 buildTime: 310 solved: true
{0,9,29}
{1,2,5}
{4,8,11}
{6,13,17}
{7,32,36}
{10,23,34}
{12,18,37}
{14,15,33}
{16,26,38}
{19,24,25}
{20,31,39}
{21,22,28}
{27,30,35}