won endgame

[Event "Open invite"]
[Site "http://www.chessatwork.com"]
[Date "2012.04.16"]
[EndDate "2012.05.17"]
[Round "?"]
[White "Elmourinho"]
[Black "tvochess"]
[WhiteRating "1563"]
[BlackRating "1653"]
[WhiteElo "1563"]
[BlackElo "1653"]
[Result "0-1"]
[GameId "9217300"]

1. e4 e6 2. d4 d5 3. exd5 exd5 4. Qd1e2 Bf8e7 5. Nb1c3 Nb8c6 6. Ng1f3 Bc8g4 7. h3 Bg4xf3 8. Qe2xf3 Nc6xd4 9. Qf3d3 c5 10. Bc1e3 Ng8f6 11. Be3xd4 cxd4 12. Qd3xd4 O-O 13. Bf1d3 b6 14. O-O-O Be7c5 15. Qd4h4 a6 16. g4 g6 17. Bd3e2 Rf8e8 18. Be2f3 Nf6e4 19. Qh4xd8 Ra8xd8 20. Nc3xd5 Ne4xf2 21. Nd5f6 Kg8f8 22. Nf6xe8 Rd8xd1 23. Bf3xd1 Nf2xh1 24. Ne8c7 a5 25. Nc7d5 {Here, my opponent proposed a draw.} Nh1f2 {I replied I wanted to continue the game for practicing. I thought this move would gain me a pawn or a N vs. B ending with pawns on both sides of the board. Both are favourable for me (I think).} 26. h4 Nf2xd1 27. Kc1xd1 f5 {This actually took me some time. I wanted to activate the king, but N prevented Ke7.} 28. gxf5 gxf5 {I don't like the two isolated pawns.} 29. Kd1e2 Kf8f7 30. a3 Kf7e6 31. c4 Ke6e5 32. b4 axb4 33. axb4 Bc5d4 34. h5 b5 {I liked this move, because it complicates for white. The pawn can not be captured.} 35. Ke2d3 {I think it's the only defense that doesn't lose at least a pawn.} h6 {White has to move now.} 36. Nd5e3 Bd4xe3 {At this point, I was not entirely sure whether the exchange was good, but it turned out well.} 37. Kd3xe3 bxc4 38. b5 {This created doubts. I found a lot of lines where white would queen his pawn first. But after a while, I realised the solution was to advance the black pawns together and keep my king in the square of the white pawn. Focussing on one pawn, defended by my king, would lead to b8=Q.} f4 39. Ke3e2 c3 40. b6 Ke5d6 41. Ke2d3 f3 {And now white resigned after realizing he couldn't stop both pawns from queening.} 0-1

[FEN "8/8/8/1k6/8/2P5/P7/7K w - - 0 1"]
[SetUp "1"]
{--------------
. . . . . . . .
. . . . . . . .
. . . . . . . .
. k . . . . . .
. . . . . . . .
. . P . . . . .
P . . . . . . .
. . . . . . . K
white to play
--------------}
1. a3 Kc4 2. a4 Kc5 3. Kg2 Kb6 4. c4 Ka5 5. c5 Ka6
6. Kf3 Kb7 7. a5 Ka6 8. c6 Ka7 9. Ke4 Kb8 10. a6 Kc7
11. a7

[FEN "8/8/7p/1p1Nkp1P/1PPb4/3K4/8/8 w - - 0 1"]

1. Ne7 {Threat 2.Nc6+} 1... bxc4+ 2. Kxc4 Bb6 {I don't think it matters where the Bishop goes. If it does and wins then it's a brilliant study. You will see why I've placed it here in a few moves.} 3. Nxf5 Kxf5 4. Kd3 Kg4 5. Ke2 {If the Bishop was now on f2 or g1 White gets Kf1 with a tempo. The Black King cannot take the h-pawn and keep the White King off g2. Draw(?). The ? means if there is a cute winning trick for Black after 1.Ne7 I've not seen it.}

[FEN "r2qk1nr/ppp1bppp/2n5/3p4/3P2b1/2N2N1P/PPP1QPP1/R1B1KB1R b KQkq - 0 1"]

1... Nxd4 2. Qd3 Nxf3+ 3. gxf3 Be6 {Means you keep the d-pawn. I would not be too distraught as Black here. Surely I can create some kind of messy position, especialy OTB. But Black has the endgame in his pocket.} 4. Qb5+ {Getting the pawn back (not a move I would play) but...} 4... c6 5. Qxb7 Qc8 {The Queens are forced off.} 6. Qxc8+ Rxc8 {There you are. Must be an edge to Black. You can practice your endgame.}