Puzzle of the week #116

Did this really happen? When I looked at the position, I immediately pulled out my endgame book and started reading the chapter on Rook vs Knight with unequal pawns on the board. I found 9 sample puzzles nicely balanced between real games and chess composition with some famous players being involved: Fine, Reshevski, Alekhine, Botvinnik and the Platov brothers. All were showing how difficult it is for the Knight to hold the position together, but there were special situations when it could; unfortunately this position was not one of them. Then I stopped searching and remembered this was from a real game where no book consultation was allowed. Hmm, what should a player do in such position as the first instinct?... Your tasks:
a) Analyse the position
b) White to move and win
Total available points for this puzzle is 20. The answers will be published next week together with puzzle #117.

Puzzle #115 solution:
This has been a puzzle presented on Susan Polgar blog. More than half of you found the correct solution, but only 3 managed to write down a correct analysis and propose good plans. The best answer and also the fastest was sent by Edwin. He wrote:
a) In this position here it may seem like Black will win surely because it will promote on the next move, but Black will not.
ANALYSIS:
- Black's one move away from promoting
- Black's King is not in good position
- White is up in material (but after h1=Q black is up material)
- White has a good defence for the King
- White's g2-pawn is useful because sometime after h1=Q, it is blocking it's moves
PLANS:
- White must try to stop Black from promoting
- White must attack now, if it is one move late, it would be totally different
- Black should try to prevent checkmate
b) See solution:
[Event "Puzzle #115"][Date "2010.04.30"][Result "1-0"][SetUp "1"][FEN "8/p6p/5Nk1/8/B6P/8/KPP3Pp/8 w - - 0 1"]1.Nh5 h1=Q (1...Kxh5 2.g4+ Kxg4 3.Bc6 {White wins}) 2.Be8+ Kh6 (2...Kf5? 3.Ng3+ {White wins}) 3.Ng3 {The Queen is harmless as it cannot check nor checkmate} 3...Qxh4 {The only way to prevent "Nf5#"} 4.Nf5+ Kg5 5.Nxh4 {White wins}

Correct solutions:
Edwin, Jeffrey, Andy Y - 20 points
Owen - 14 points
Nathaniel - 12 points
Karl - 10 points
Alex - 8 points
James - 6 points

Standings:
Owen - 303 points
Andy Y - 298 points
Karl - 281 points
Edwin - 256 points
Andy Q - 214 points
Jeffrey - 203 points
Alex - 182 points
Humphrey - 180 points
James - 170 points
Nathaniel - 128 points
Amir - 103 points
Rick - 18 points
Marko - 10 points