Elemental Sudoku

Elemental sudoku is a casual puzzle game where sudoku meets Doodle God ! In this game-prototype consisting of 16 levels, the player must face the task of filling various sudoku-grids in such a way to restore balance between the elements. No two same elements can be present in the same row nor column and each box represents the combination of its present elements  Example : mud = water + earth Thi…