whiteshark: and here are the critical moments: "
With this move I completely lose control of the position, and my advantage to boot! What is particularly sad is that I only spent two of my remaining 26 minutes on this move. [46.Be3! was the correct move. I was worried about something, probably 46...Bxe3+ (46...Bb4 47.Ra4 Bc5 48.Bxc5 Nxc5 49.Rc4 is also winning for White.) 47.Rxe3 Nxg5 (47...Nd4 is better, but White has established control of the position and should win comfortably.) 48.hxg5 Nh3+ 49.Kg2 Nf4+ , thinking that a draw by perpetual check would result, but White has several good replies, including 50.Kf3! when each of Black's discovered checks don't come to anything.]
This move destroys my defensive bastions and now the position is a mess.
A ridiculous move, especially as I saw Black's very strong response. [47.Be3! was the easy way out, when 47...dxe4 (47...Bxe3+ 48.Rxe3 dxe4 49.Bb3! Nxg5 50.hxg5 Qxf5 51.Qxf5 Rxf5 52.Bxg8 Rxg5+ 53.Kh2 Rh5+ 54.Kg3 Rg5+ 55.Kh4 Rxg8 56.Rxe4 gives White very good winning chances - I'm too lazy to analyse this endgame to a final conclusion.) 48.Bxd2 Rxf5 49.Bb3 Nxg5 50.Bxg8 Qxg8 51.Rg3 Nf3+ 52.Qxf3 exf3 53.Rxg8+ Kxg8 54.Rxf3 and after 54...Rf7! this is going to be a draw as there are too few pawns left.; 47.Rg3 was the computer's way out. I rejected this because I thought ...d4 would give Black a very strong protected passed pawn, but I should welcome this as it kills all of Black's counterplay. 47...dxe4 (47...d4 48.Bb3 Rg6 49.Bxe6 Nxe6 50.Rg2 followed by Bg3, and White is obviously winning.; or 47...Bxa5 48.Bb3 dxe4 49.Bxe6 Nxe6 50.g6 and the passed pawns win after all!) 48.Nd6 Rf6 With this move, Black threatens ...Nxg5. (48...e3 49.Bxe3 achieves nothing, and; 48...Bxa5 isn't the way to handle such a position! 49.Bb3 Qd7 50.Nxe4 and White has a clear positional advantage.) 49.gxf6 (49.Nc4 Rh6 50.gxh6 Rxg4 51.Bxg4 e3! 52.Bxe3 Bxe3+ 53.Nxe3 Nd4 is equal in an unclear kind of way. Over the board I would find Black's position a lot easier to play, especially in the mutual time scramble that was rapidly approaching.) 49...Rxg4 50.Bxg4 e3! 51.f7! Qxh4 52.Nf5 Qf6 53.Bxe3 Bxe3+ 54.Nxe3 Ng5 55.Bh5 Kg7 56.Nd5 Qf5 57.Ne7 Nfh3+ 58.Kg2 Nf4+ and at the end of a variation that made absolutely no sense to me, the game ends in a draw by perpetual check, unless White wants to try 59.Rxf4 Qxf4 60.f8Q+ Qxf8 61.Rxg5+ Kh6 62.Rxe5 Qf4 when White can defend all his pieces with the cute 63.Ng6 , but White has no way to untangle, let alone escape Black's array of checks, so it's a draw.]