endgame problems

[Date "????.??.??"]
[Result "*"]
[FEN "1k6/1P6/2P5/P7/5ppp/8/6K1/8 w - - 0 1"]

1.a6 f3+ 2.Kf2 h3 3.c7+ Ka7 4.c8=Q
*

[Event "Edited position"]
[Date "2013.06.23"]
[Round "-"]
[White "-"]
[Black "-"]
[Result " "]
[FEN "1k6/1P6/2P5/P7/5ppp/8/6K1/8 w - - 0 1"]
[SetUp "1"]
1. Kg1 { ! - it is extremely important to wait and directly blockade any pawn that may advance. If 1.a6? then 1...g3! and white's K must let a P advance to f3 or h3, which is death. } 1... Kc7 2. b8=Q+ { ! - not 2.a6? Kb8! and white is in zugzwang. The b-pawn is not important. What's important is passing the move, and the inevitable zugzwang, back to black.} 2... Kxb8 3. a6 g3 4. Kg2 { white would have met 3...f3 with Kf2 and 3...h3 with Kh2. Once his K establishes a direct blockade, it is all over. } 4...Kc7 5.a7 {1-0}

[Event "ChessCube Game"]
[Site "www.chesscube.com"]
[Date "2013.06.25"]
[Round "-"]
[White "jfxr242<a href="/chess-player/chesscube" onclick="XPopPlayerProfile( event, 'chesscube');return false;">@chesscube</a>.com"]
[Black "fafacacamama<a href="/chess-player/chesscube" onclick="XPopPlayerProfile( event, 'chesscube');return false;">@chesscube</a>.com"]
[Result "1/2-1/2"]
[WhiteElo "2026"]
[BlackElo "2323"]
[ECO "C03"]
[Time "18:56:52"]
[TimeControl "600"]

1. e4 e6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bd3 b6 8. O-O Bb7 9. Bg5 Be7 10. c3 O-O 11. Qc2 h6 12. Bh4 Bxf3 13. gxf3 Nh5 14. Bg3 Nxg3 15. fxg3 c5 16. Be4 Rc8 17. dxc5 Bxc5+ 18. Kg2 Qc7 19. Rad1 Rfd8 20. Rxd8+ Rxd8 21. Rd1 Rxd1 22. Qxd1 f5 23. Bc2 Qd6 24. Qxd6 Bxd6 25. Bb3 Kf7 26. Kf2 Kf6 27. Ke3 e5 28. Bd5 {thought it was a commanding bishop here, in fact its pretty toothless} Bc5+ 29. Kd3 g5 {hmm, ok he's gonna throw his pawn majority down the board and create a passed pawn, I still think I'm ok, opposite coloured bishops right ?} 30. b4 Bf2 {this caught me by surprise, expected Bg1 when I get my kingside pawns on white square and we're fine} 31. c4 g4 32. a4 {I'll create a passed pawn on the queenside and we'll be equal} Bg1 {hang on.... I'm in trouble} 33. Ke2 {ahh, I'm gonna trap his bishop} Bxh2 34. Kf2 gxf3 {oh crap, I'm not trapping his bishop, what now ?} 35. c5 {found after a bit of thought, his bishop is out of action} bxc5 36. bxc5 Ke7 37. c6 f4 {played to release his bishop} 38. gxf4 Bxf4 39. Kxf3 {ok, I'm feeling a bit happier now} Kd6 40. Be4 Bg5 41. Kg4 Bd8 42. Kh5 Kc5 {can I take that pawn ? is my king too far away from the action ?} 43. Kxh6 {a quick calculation and I think I can take it} Kb4 44. Bc2 Kc3 45. Bd1 e4 46. Kg6 {ok, here's the plan, give up the bishop for his e-pawn, run my king over to support my c-pawn, he'll have to return the bishop, my king is closer than his to the a-pawns = draw} Kd2 47. Bg4 e3 48. Kf7 e2 49. Bxe2 Kxe2 50. Ke8 Ba5 51. Kd7 Kd3 52. c7 Bxc7 53. Kxc7 Kc4 {oh hang on.... Kb7 is met with a5 when Kb6 then Kb4 and I think I'm lost} 54. Kd6 {so can I get my king to a place where he can't promote his a-pawn, I think so....} a5 55. Ke5 Kb4 56. Kd4 Kxa4 {draw offered and gladly accepted} 1/2-1/2