TanZen HD tangram puzzle game

TanZen HD is the classic tangram puzzle game for iPad.This puzzle reminds me of orrgami. So many shape can be created using the same 7 saps in defferent contortions. Fun each and every day. Every time I think I have 'masterd' the game. I get some puzzle shape that keeps me baffled.But it's too easy to play. I wish every single puzzle did not use the same exact shapes and it presented more of a