Happy Triangle Eliminate

We all had ever been facinated with the three elimnating, and had you ever found a triangle elimnating? All Objects will be deleted within a triangle which you had drawn it. The rule is very simple, while you will be addictive with it. There are some levels you can choose from, only the last level add a new rule, that's tree can not be clicked. So the tree becomes a obstacle, you can only eliminate it by draw a triangle which hold the tree object within its scope. Well, you find that if the tree is located at the screen margin, you can not draw a triangle wraps it in, so we add another rules for tree, if we find the tree has no other objects around it, we will let the tree eliminated too. We know, we can add more rules for the game, but is that you wanted? We just make the game as simple as possible, and keep this triangle eliminate game funny too. There are kinds of eliminating game which hold a rule by click three same, or four or five same block, but all these blocks must be adjacent. Be adjacent seems a normal rule, and much less game break this rule when create a new game. So, we make this game which breaks the adjacent rule, the blocks do not need to be adjacent, they just need to be within a triangle! You can surely draw a very big triangle, and all objects or blocks within that triangle will go away. You made a magic if you draw a wonderful triangle when the objects more and more.