yes, 3. Bb6 really wins.

i didn't see the move (3... Nd6) 4. Bc7!! that has been made in this game (by Kasparov, as people say here). Black can only play 4... Ba7, but after 5. Bxd6 the game is won by white. To make this, they must attack the a7 bishop by their bishop, forcing the exchange and the pawn promotion, or simply winning the black's bishop. 5... b4 6. Bf4 and 7. Be3, white win, if any other move (e.g. 5... f5 or g5), then 6. b4 and 7. Bc5 Bb8 8. a7 Bxa7 9. Bxa7 1:0

haha, now i can suggest in what was the initial error in this problem. Moves 3. Bb6 Nd6 were probably omitted, and the winning (and splendid) move 4. Bc7!! was marked as third...

took me a while.  nice one.

Logical, and good.

3rd time

Nice

weird, could have taken the horse

Last!

Why would you (seemingly) complain.  At least at your 1000 rating, you got to do two puzzles back to back.  Just think how boring it is for 2000+ players.

Easyer.

Who knows if anyone is still tracking this over-a-year old thread, but I wanted to get corrections in case I missed something.  I wasn't sure how this forces the promote.

I think if Black allows that bishop fork, he would have been better off sacrificing the bishop instead of the knight.  This keeps the pawn on the a-file, where the dark bishop doesn't control the promote square, and the knight can blockade with glee.  Of course, the king would then have to take a more active role in order to make sure the pawn won't become a problem later.  

Anyway, these were my thoughts

3..f6 (preparing to involve the Black King for the more active role he will take in the moves ahead, keeping it safe on light squares)

4. b4 (stopping the Nc5 threat so that the white bishop is freed up to threaten the black bishop with Bc7)

4..Nd6 (preparing the blockade)

5. Bc7 (the strong bishop fork)

5..Nc8 (sacrificing the bishop to keep the pawn on the a-file)

6. Bxb8 Kf7 (the Black King will need to get involved)

7. Bd6 (preparing Bc5 which literally stops ALL of the knights available squares)

7.. Nb6 (escaping before this is an issue)

8. f4 (threatening f5, which limits the Kings invasion to e6 and makes the g7 pawn a liable backward morsel to the white bishop)

8...g6 (strengtening the pawn chain and stopping the f5 threat)

9. Kg2 (I can't see how the White King can't involve himself in this endgame)

9..Ke6 (obvious reasons)

10. Bc5 (trying to stop the Knight blockade)

10.. Na8 (and failing)

Anyway, please let me know if I missed anything, this is a very difficult puzzle and I wish there were more like this.  But my initial thought was that white can't force a promote if he keeps the pawn on the a-file, since the bishop doesn't control the promote square.  Then black will try to march the king over to the queenside and force the matters.

good

good