This afternoon I struggled with the position below. If you want you can use it yourself as a Stoyko exercise. The position is taken from Khmelnitsky's Chess Exam.
After you have analyzed the position and written down every line, you can compare it with Khmelnitsky's analysis. If you highlight the space between the brackets you can see the line he recommends for white in this position.
(This is Khmelnitsky's analysis: 1 Rxd6!? was played in the game Baburin - Basas, Andora 1998. White got two pawns for the piece, neutralized blacks initiative, and gainde psychological momentum. Black never recovered from the initial shock and quickly fell apart. After 1 ... fxe3 2 Nxe3 Bf8? [already a losing move. Better was 2 ... Nf6, but after 3 Rc6 and 4 Rxc5 white has excellent chances.] 3 Rxg6! hxg6 4 Qxg6+ Ng7 5 Ng4 Be7 6 Nh6+ Black resigned)
When I had checked my analysis with Khmelnitsky's solution, I tried to win this position with the move recommended by the author and using my own Phaedrus Exercise. It was really challenging. Amazingly enough I already had real trouble winning this against Fritz 10 with a fixed depth of 3 ply.