Marias chess - chess is a simulator program. Solving the problem you will improve your gaming skills in a variety of stages of a chess game.
In each task you need to do not just give a winning move, but also specify the option that proves your victory.
Pointing answer to the problem, you have to think for both sides and bring a fundamental option, making the best moves for both White and for Black.
The problem will be considered solved correctly when you bring the correct option, which requires the calculation in this position.
The main difference from other programs is unique in the fact that here you have to calculate the option up to the end before you get the answer right or not right, you decide.
Solve our problems, and you will improve your skills in tactics, the opening and endgame.