n: 40 m: 554 packed: 13 density: 0 nodes: 0 solveTime: 24130 buildTime: 180 solved: true
{0,12,31}
{1,10,22}
{2,19,30}
{3,32,37}
{4,16,33}
{5,9,11}
{6,17,18}
{7,29,35}
{13,36,38}
{14,24,26}
{15,28,39}
{20,23,25}
{21,27,34}