n: 40 m: 303 packed: 13 density: 0 nodes: 0 solveTime: 2190 buildTime: 60 solved: true
{0,4,7}
{1,15,21}
{2,14,29}
{3,26,37}
{5,18,34}
{6,10,35}
{8,9,16}
{11,17,32}
{12,33,38}
{13,23,30}
{19,20,28}
{22,25,31}
{24,27,36}