Chess960: Opening Puzzle No. 8

Well puzzle six was a tricky one! Biff says that at least he got part of the answer up to the third move. Here is another really difficult "Catch The Knight" problem that comes from a real Chess960 game!

SP379 Black to play move 10 (castling permitted):
Can the knight be caught cleanly without loss?

Problem level: Difficult

Answer: yes or no?

Solution: somewhere on this page

10)       ... Rd7?! white now throws everything including the kitchen sink at black!

11) d4!   ... f5    preparing Bf7

12) d5!   ... Nf4   biffing black's knight

13) g3!   ... Nfxd5 biffing black's knight

14) e4!   ... fxe4  biffing black's knight

15) fxe4  ... Nb4   finally black get's a small breather

16) O-O!  ... Bf7   time to capture white's knight finally?

17) Bxb6! ... cxb6= white's knight has got an escape square!

So Rd7?! is a definite no answer for the puzzle.

Here's the best shot black has:

10)       ... Nf4!  Black threatens Ng6 closing white's knight retreat square

11) Re1   ... Ng6

12) h4    ... gxh4  white was threatening to biff Ng6 away allowing Ne7

13) Be3!  ... Nd5   white is desperate to free the knight via h6

14) Bg5!  ... f6    the battle for control of h6 continues

15) Bh6!! ...       now the two bishops fight each other

15)       ... Bf7   black continues the plan to capture the knight

16) Bxg7  ... Rxg8  white's bishop must retreat

17) Bh6   ... Rxa2-/+ black get's compensation but could not catch the knight without exchanging off a bishop. 

Therefore the answer to black's best shot in the puzzle is still no!

The puzzle solution is: no, white's knight cannot be caught without exchanging it for another piece