n: 50 m: 456 packed: 16 density: 0 nodes: 0 solveTime: 31270 buildTime: 120 solved: true
{0,21,30}
{1,34,47}
{2,26,35}
{3,16,49}
{4,5,24}
{7,36,41}
{8,44,48}
{9,12,15}
{10,13,23}
{11,45,46}
{14,32,42}
{17,31,33}
{18,20,28}
{19,22,27}
{25,37,38}
{39,40,43}