n: 40 m: 287 packed: 13 density: 0 nodes: 0 solveTime: 2120 buildTime: 40 solved: true
{0,7,29}
{1,23,31}
{2,10,14}
{3,4,19}
{5,32,35}
{6,16,24}
{8,18,28}
{9,20,25}
{11,21,39}
{12,13,26}
{15,22,33}
{17,27,34}
{30,37,38}