Solitaire chess is a very interesting concept: it gathers the goal of the solitaire game and adds the chess rules.
As for the solitaire; the goal is to have only one piece left at the end.
As for the chess rules: well you have the pawn, knight, tower, king, queen and fool. The pieces move in the same way as the chess game. Some exceptions: "check" does not exist, so the king can be close to the queen. The pawn does not convert in any piece if they reach an edge of the tray. And last rule: each time you move a pice you have to eat another piece. So you cannot move a piece without eating.
Of course if you end with more than one piece in the tray you did not perform well the steps :)
I love chess game so I can only like this game !
There are 60 challenges from easy to very difficult. I have almost finished all the challenges, but for the moment I am a bit stucked. So expect to spend hours and hours with Solitaire Chess :)
The solutions step-by-step are not included, but there are tips like: which piece has to move first, which piece has to be eaten first and which piece should be the remaining piece on the tray.
I truly recommend Solitaire Chess, you won't (and cannot) be disappointed.