n: 50 m: 307 packed: 16 density: 0 nodes: 0 solveTime: 2500 buildTime: 50 solved: true
{0,24,31}
{1,39,47}
{2,17,30}
{3,20,21}
{4,5,15}
{6,32,49}
{7,35,41}
{8,19,42}
{9,16,37}
{10,23,27}
{11,43,46}
{12,36,38}
{13,22,26}
{14,34,48}
{25,29,44}
{28,33,40}