Hampstead Highlights

IN this post I intend to highlight the moment the result of each of my games was decided in the weekend's five-round Hampstead U2200.
Round One
Spanton (1884/171) - Gavith Dharmasena (1560/154)

White to play and win

*****
*****
*****
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*****
67.Kd5?
This only draws.
Interestingly, the analysis engine Komodo9 reckons the position is drawn, while Stockfish10 assesses it as winning for White. The latter engine is correct, as can be checked with the Nalimov endgame tablebase. The winning method is 67.Nd4 Kc4 (only now does Komodo9 recognise the win) 68.Ke5 (68.Ke3 also wins) Kc5 69.Nf3 Kc4 70.Nd2+ Kc3 71.Nb1+! (the key move, diverting Black's king as far as possible from a8) Kb2 (71...Kc4 does not help as Black's king soon has to give way to White's) 72.Kd4 Kxb1 73.Kc3 Kc1 74.Kb4 Kc2 75.Kxa4 Kc3 76.Kb5, and Black's king cannot reach a8.
The game saw:
67...Kxc2 68.Kc4 Kd2 69.Kb4 Kd3 70.Ka4 Kc4
This is drawn because White's king cannot escape the a file while simultaneously protecting the pawn and keeping Black's king out of a8. The remaining moves were:
71.Ka5 Kc5 72.Ka6 Kc6 73.a4 Kc7 74.Ka7 Kc6 75.a5 Kc7 76.a6 Kc8 ½–½
Round Two
Theodore Slade (2125/no ECF) - Spanton (1884/171)

Black to play and equalise

*****
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20...Nb4?
Correct was 20...g6, which equalises, according to the engines, eg 21.N5d4 Nb4 22.Rd7 Nd3 23.Nf5!? Nxb2, when neither 24.Nh6+ nor 24.e6!? seem to give any appreciable advantage. In any event, 20...g6 was much better than the text.
The game continued:
21.Rd7 Nxa2?
Another mistake, although White is well on top after any continuation.
22.Ng5 (1-0, 52 moves)
Round Three
Spanton (1884/171) - Wolfgang Jekel (1684/148)
I have already covered this game in the post https://beauchess.blogspot.com/2019/06/73rd-hampstead-u2200-round-three.html
Round Four
Ethan Sanitt (1723/159) - Spanton (1884/171)

Black to play and win

*****
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*****
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54...c4??
Somehow, in my mind's eye, White's bishop had captured on h7. After the text, White played 55.Bxc4 with an instant draw.
Instead, Black wins easily with 54...Kd3, eg 55.Bxh7 Be5 followed by ...c4 etc.
Round Five
Alex Barlov (1740/154) - Spanton (1884/171)

White to play and win

*****
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*****
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45.Bf1
This does not spoil the win but, after making the move, AB pressed his clock and almost immediately offered a draw, which I accepted.
White wins with 45.c5, eg 45...bxc5 46.bxc5 Kd5 47.Bb5 Kxc5 48.Bd7 etc.