Should/Could this game have been won?
Wow, lol, we both completely missed NxB. Seems I lucked out hugely there.
And I hadn't seen that, was too busy thinking about pushing a pawn to the end.
Seems this game was of a much lower quality than I had realised :(
45.h4 is (I think) the last chance for white to win, because after that move the black king cannot afford to go below the 4th row (or else the pawn runs away)
The plan is simple:
*win the knight
*win the pawn
*promote the RIGHT colour bishop + edge pawn
It was supposed to be a slightly late Halloween gambit, which against lower level players usually works, but I completely missed that my bishop position ruined the opening completely. And luckily it seems he missed it too.
Ignoring your hanging bishop and jumping straight to the minor piece ending...
34. g3 This weakens your pawns a bit and makes it easier for black to create a passed pawn. Why not continue with where you were going before. 34. b5, driiving away the knight and then Kxd4. If 34. ... Na7 you play 35. a4 and then your king will win the d-pawn.
45. a6. Why not 45. Kb6 winning the b7 pawn. Now your two pawns will be too much for his knight to handle.
Instead of 49. Kb7, you can play 49. Bf2 Nb5+ 50. Kb6 Nd6 51. Kc6 Nc8 52. Kc7 and you've driven the knight away.
