n: 40 m: 186 packed: 13 density: 0 nodes: 0 solveTime: 540 buildTime: 20 solved: true
{0,18,36}
{1,2,11}
{3,7,29}
{4,20,32}
{5,21,39}
{6,19,23}
{8,25,33}
{9,14,30}
{10,16,35}
{13,34,37}
{15,22,24}
{17,26,28}
{27,31,38}