n: 50 m: 248 packed: 16 density: 0 nodes: 0 solveTime: 2200 buildTime: 40 solved: true
{0,20,21}
{1,19,28}
{2,43,44}
{3,15,38}
{4,17,30}
{5,11,34}
{6,35,49}
{7,29,45}
{8,18,22}
{9,23,36}
{10,25,37}
{12,31,47}
{13,24,41}
{14,16,26}
{27,32,42}
{39,40,48}