Object: Find the longest rows on the board.
 
First click anywhere on the board. Sixtyfour Butterflies of two different types will appear.
Find the longest row of similar butterflies on the board, either orthogonally or diagonally. Click the first and last butterfly in the row to capture the whole row of butterflies.
From the ones left over, find again the longest row of any type of butterfly. You lose if you did not pick the longest row on the board.
 
Keep on doing so until you have no rows of length three left. Then click the OK button.
You lose if you clicked OK despite the fact that there is still a row of length three or more on the board. Otherwise you win.
 
Variant 2 is the same game on a plain background, which makes it somewhat easier to play.
 
 
More freeware as well as real puzzles and games at my homepage http://karl.kiwi.gen.nz.