n: 40 m: 300 packed: 13 density: 0 nodes: 0 solveTime: 4260 buildTime: 50 solved: true
{0,27,33}
{1,12,35}
{2,8,16}
{3,13,24}
{4,9,21}
{5,26,30}
{6,20,34}
{7,22,28}
{10,17,23}
{11,36,39}
{14,37,38}
{15,31,32}
{18,19,29}