Tacticross Free Android game

Tacticross Free is an extremely challenging logic puzzle game. The goal is to draw figures consisting of four blocks. The numbers at the borders indicate, how many blocks in a row or column are part of figures. The figures must not touch each other, neither vertical, horizontal nor diagonal. No field of 2x2 blocks must be completely empty or filled. The rules sound easy, but when you first see an empty Tacticross grid, you will feel lost and your brain will sizzle. Compared to similar looking riddles like Picross, Griddler or Sudoku, Tacticross is extremely hard, especially in the later levels. To focus everything on the riddles, the game was crafted using a minimal, zen like design. Only two colors (and black and white) are used and the screens are dominated by rectangular shapes, which originate in the grid of the riddle.