n: 40 m: 342 packed: 13 density: 0 nodes: 0 solveTime: 6430 buildTime: 70 solved: true
{0,9,20}
{1,24,27}
{2,3,19}
{4,13,21}
{5,26,29}
{6,7,18}
{8,16,34}
{10,31,37}
{11,17,39}
{12,15,35}
{22,28,36}
{23,33,38}
{25,30,32}