Black to move
It is clear that 41...Be2 would have prevented, or at least delayed my plans to remove Black's g-pawn, but 41...Ba2 also keeps the draw in hand. To wit, 42.Nf3 Kc4 43.Ne5+ Kb4 44.Nxg6 Kxa4 45.Ne5 Bg8 46.Kxf5 c4 and White will be forced to give up the knight for Black's last pawn.
42.Nf3+- c4 43.Ne5 Bc2 44.a5!
This move was necessary to the win.
44.Nxg6 Bxa4 45.Ne7+ Ke6 46.Nxf5=
Black to move
 |
| Analysis diagram |
44...Kc5 45.Nxg6 Kb5
White to move
Stockfish favors 46.a6! The lines following are pure engine.
46...Bb3 47.g6 Kxa5 48.g7 c3 49.bxc3 Bg8 50.Kxf5 Kb5 51.Kf6 Kc5
White to move
White wins more quickly with a simple technique: Ke7 or Nf7 with the idea of trapping the bishop. 52.Nf7 Kc4 53.Kg6 Kxc3 54.Nh6 Be6 55.Nf7 and the pawn promotes.
52...Kd4 53.Kf5
I appeared to be oblivious to the technique mentioned above.
53...Kc5 54.Ke4 Kd6 55.Kd4 Ke7
White to move
I found the only winning move.
56...Kf6 57.Nd7+ Kxg7 58.c6!
And again, only one move wins.
58...Be6 59.Ke5
59.Kc5 also wins
60.Nc5! Be2 61.c7 Bg4
White to move
Black's last few seconds of time ran out.
1-0
