I was slightly better early in the middle game when I blundered into a slightly worse position, and then blundered again into a lost position, but I played on. My opponent blundered away the win to reach an ending that had strong drawing chances despite a dynamic imbalance. He missed an idea that gave him a slight advantage at one point, and then dropped a piece to give me a winning advantage.
White to move
33.Rxh7+??Had White played 33.Rxb7, I might have decided that it was time to respect my opponent's superior position (as well as a rating 300 higher than mine) and gracefully resign.
33...Qxh7 34.Rxh7+ Kxh7
The position is equal. ChessBase's "Report" feature is useful for studying this sort of ending. A quick glance through the nearly 300 games that are found in MegaDatabase seem to indicate that the minor pieces prevail more often than the rook. Searching my personal database for this material turns up three previous games and I'm always the side with the rook. I have a win, draw, and loss in the three games.
Later in the game, after a pair of pawns are exchanged, the same search mechanism turns up 22 games, most of which were decided by such tactical errors as the rook and king walking into a fork by the bishop or the knight.
We continued.
35.h4 Kg6 36.hxg5 fxg5
White to move
With mobile pawns and each side having a majority, anything is possible. The rook's greater mobility seems promising, but White also could develop an advantage to play for a win. More than likely, good play on both sides should lead to a draw.37.Ne5 Kf5 38.Nf7 Re7 39.Nd6+ Kg6 40.Nc8
A fork!
A fork!
Black to move
Both pieces escape.
42.Nd6 Rd7 43.Kf1 Kf6?!
43...Rc7 44.Ke2 Rc3 45.Nxb7 Rxa3=
The position is easier to draw, but Black was oblivious to the dangers.
44.Ke2 Ke6 45Ne4 Kf5 46.Nd6+ Ke6 47.Ne4 Kf5
Black is anticipating a repetition.
White to move
48.Ke3!?Activating the king is the right idea, but there is a better way.
48.Nc5! Rh7 49.Kd3 and we see that White intends to dispose of Black's pawn majority. White missed an opportunity to gain a clear advantage. Even so, White is better.
48...Re7 49.f3 g4 50.Bh4
50.Kd4 was the right idea.
50...Re6 51.Bg3 gxf3 52.gxf3 Rb6
Black activates his rook for counterplay.
White to move
53.Nd6+ Kg6?53...Ke6 was needed.
54.Nc4?
54.Ke4 and White again has a clear advantage. In this case, the f-pawn will work its way up the board with the help of the two minor pieces and the king until Black is forced to give up the rook.
54...Rb3+ 55.Ke4 b5 56.Ne5+ Kg7
57.f4??54.Ke4 and White again has a clear advantage. In this case, the f-pawn will work its way up the board with the help of the two minor pieces and the king until Black is forced to give up the rook.
54...Rb3+ 55.Ke4 b5 56.Ne5+ Kg7
White to move
Inexplicable.
Play might have continued 57.Nc6 Rxa3 58.Bd6 Ra2 59.Nd4 and neither Black pawn can advance.
57...Rxg3-+ 58.Nd3 Kf7 59.f5 Rg4+ 60.Ke5 Ra4 61.Kd5 Rxa3 62.Ne5= Kf6 63.Nc6 Kf6 63.Nc6 Kxf5 64.Kc5 Rc3+ 65.Kb6 Rxc6 and White resigned.
After the game, I spent some time looking through endgame books to see who had written about this material imbalance. Dvoretsky's Endgame Manual has four pages.
This position from Beliavsky,A. -- Dolmatov,S., Minsk 1979 shows a creative idea worth remembering.
Black to move



















































