Originally posted by masniak
i think black's f5 left me with decisive advantage, as it opened king's position, already weakened by h5. But before I was feeling a weaker side. Too bad I'm still uncapable of taking advantage of such positions.
I'm really interested in the question of the position after 43.Nf3. For one reason: I always find it hard to deal with two or even one rook whe vs rook ending although I know philidor's position. It's still hard to reach it for me.
Q and N are a strong combination as they complement each other very well. In this situation, they're particularly good because black's bishop is "out of play" and because white's king is safer than black's exposed king. The knight is not restricted in it's mobility. White also has a passed pawn. Actually, the d5 pawn and it's potential to advance may be the difference maker in particular variations. Even without the d5 pawn, white probably wouldn't be worse.
43.Nf3 most likely wins. It is hard to say definitively without doing a lot of variations, but one does not need to calculate everything with certainty to feel good about a position.
43.Nf3 temporarily breaks rook coordination, puts the knight closer to the center targeting e5 and g5. 43..R1xf3 probably loses to 44.gxf3 (black can't follow with 44..R6xf3 45.Qg2ch) 44...h4 45.Qe4
The idea here is to find checks, simultaneous attacks, set up an advance to d6. White has a passed f pawn as well, and black a weak h pawn.
If black does not take the knight,
Find relatively safe squares for your pieces combined with maximum mobility.
Attack your opponents pieces and pawns preferrably double attacks, pins etc.
Support the advance of your own pawns
The most important thing in a long sequence, though, is the very next couple moves, making sure you don't fall into a trap situation or a stymied position. The very next possibilities are more important than the distant ones.