10 August 2018

Annotated Game #191: Having to be brilliant to win a won game

This tournament game is notable for my failure to win a won game in a more normal and less dramatic fashion.  After spotting a tactical sequence that puts me a piece up, I make all the right moves, but my opponent refuses to give in.  Sometimes this is annoying (when you're the one winning), but is also not a bad strategy at the club level, if there's no immediate knockout, as in this game.

Later on, I break the rule of not allowing my opponent counterplay (or even just the appearance of it), in part by making an unnecessarily complicated move (as in Annotated Game #189), and as a consequence he almost forces a drawing tactic.  However, I earn a "!!" from Fritz when I find (in some desperation) the only winning move, a rook sacrifice.  It's also worth highlighting the final decision to exchange queen for rook and force a won K+P endgame.  This should be a rather basic choice for a player, but it's also a sign that you have confidence in your calculating ability and knowledge of endgames.

Furthermore, as a general rule, I think it's good for a player to trust themselves when they are sure they have found a forced win, and not triple-check things.  This is a characteristic you often see in master games and can be misunderstood when engines give significantly higher valuations to other (also winning) continuations.  Even if it takes longer, the chosen route may well be easier, which is probably why the player was able to calculate it first over other, more complicated alternatives.

[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Class B"] [Black "ChessAdmin"] [Result "0-1"] [ECO "A12"] [Annotator "ChessAdmin/Komodo 11.2"] [PlyCount "110"] [EventType "simul"] {[%mdl 8256] A12: English Opening: 1...c6 with b3 by White} 1. c4 c6 2. b3 Nf6 3. Bb2 {it's unusual to develop the bishop and the queenside so quickly, but my opponent appeared to be experienced in using this "system" type line, given his quick play in the opening.} d5 4. Nf3 Bf5 {the most common reply, getting Black into a Slav-type structure, which is what I had been aiming for.} 5. g3 { my opponent chooses a double fianchetto system, which was not a surprise, given his early fianchetto of the dark-square bishop.} e6 6. Bg2 Nbd7 7. O-O Be7 {here the database is evenly split between this and ...Bd6, although the .. .h6 idea (see next move) is also popular (and scores comparatively well).} 8. d3 O-O (8... h6 {this prophylactic move, controlling g5 and providing a retreat square for the Bf5, scores much better in the database. For example} 9. Nbd2 O-O 10. Qc2 Bh7 11. Ne5 Nxe5 12. Bxe5 Bd6 13. Qb2 a5 14. Nf3 Bxe5 15. Nxe5 Qd6 16. a3 d4 17. f4 Nd7 18. Nxd7 Qxd7 19. b4 Rfe8 20. b5 c5 21. b6 Re7 22. Rab1 e5 23. Qb5 Qc8 24. fxe5 Rxe5 25. Bd5 Bf5 26. Qb2 Re7 27. Qd2 Be6 28. e4 dxe3 29. Qxe3 Qd7 30. Rfe1 Rc8 31. Bg2 Ree8 32. Qf3 Rc6 33. Qf2 Rd6 34. Qxc5 Rxd3 35. Qc7 Qxc7 36. bxc7 Rc8 37. Rxb7 Rd7 38. c5 Rdxc7 39. Rxc7 Rxc7 40. c6 Kf8 41. Re5 a4 42. Ra5 {1/2-1/2 (42) Svidler,P (2744)-Caruana,F (2767) Sochi 2012}) 9. Nbd2 (9. Nh4 $5 {would now harass the Bf5, but this is not a serious consideration for Black. For example} Bg4 10. h3 Bh5 $11) 9... Re8 10. a3 a5 { played to restrain the b3-b4 advance.} 11. Bc3 {this move to me indicated that my opponent wanted to try to force the b-pawn advance. However, this takes time and also moves the bishop to an undefended square, which soon becomes important.} c5 $146 {a logical response, reinforcing my own control of b4 and now also influencing d4, which my opponent immediately challenges.} 12. d4 { it's important to remember that every pawn advance leaves weaknesses behind it, in this case the e4 square.} (12. Nh4 Bg4 13. h3 Bh5 14. g4 Bg6 15. Nxg6 hxg6 $11) 12... Ne4 {this immediately exploits the lack of pawn control of e4, but more patience perhaps was in order.} (12... Qb6 $5 {would put additional pressure on both flank and center and connect the rooks.}) 13. Nxe4 Bxe4 14. cxd5 Bxd5 {the position is equal here, but I feel Black has a much easier task and has energy built up, waiting to be released after an exchange of the c-pawn.} 15. dxc5 $6 {this just plays to Black's strengths and immediately helps activate my pieces.} (15. Rc1) 15... Nxc5 $15 16. b4 {White seemed to be fixated on getting this advance in, and seemed to be happy to have achieved it, despite the significant problems he now has in the center.} Ne4 {now the other knight occupies e4 and threatens the hanging Bc3, but White can no longer get rid of it.} 17. Qd3 $2 {defending the Bc3, but missing the follow-on skewer tactic on the long diagonal.} (17. Bd4 $15 {is just about the only chance, notes Komodo via the Fritz interface.}) 17... Nxc3 $19 18. Qxc3 Bf6 {my opponent thought for some time here, eventually coming up with the move with perhaps the most practical chances of avoiding pain, but I am able to find the correct tactical sequence.} 19. Ne5 {temporarily blocking the tactic, but now Black has} Bxg2 20. Kxg2 Qd5+ {with a double attack on e5.} 21. Qf3 Bxe5 { I was happy to get the queens off here, given the material balance.} 22. Qxd5 exd5 23. Rad1 {my opponent chooses to play on, even down a full piece with no compensation. This is common at the club level, and almost pays off for him later on.} axb4 {tidying up on the queenside first.} 24. axb4 Bc3 (24... d4 { is objectively superior. There is no particular reason to give up the strong advanced central d-pawn, even if it is isolated, as it is easily defended. However, I felt it would be easier to make progress by in effect exchanging it for the e-pawn.}) 25. Rxd5 Rxe2 26. Kf3 Rb2 27. b5 g6 {giving my king "luft" (room to escape a potential threat of back rank mate).} 28. Rfd1 Raa2 {so far my game is effectively playing itself, with obvious moves targeting White's weaknesses.} 29. Rf1 Ba5 {covering the d8 square and preparing to move to the a7-g1 diagonal to further pressure f2.} 30. h4 Bb6 31. h5 f5 $6 {here I get too fancy and make an unnecessarily complicated move in response, significantly loosening my king position.} (31... Bxf2 {is simplest, as White has no real threats.} 32. Rfd1 Ra3+ 33. R5d3 Rxd3+ 34. Rxd3 Bc5 $19) 32. g4 ( 32. Kf4 $5) 32... Rxf2+ 33. Rxf2 Rxf2+ 34. Kg3 f4+ 35. Kh4 {up to this point I've played accurately and increased my advantage. With further accurate play there would be no danger, but I've left my king somewhat exposed and my opponent can now generate counterplay after my inaccuracies.} Rc2 (35... Rh2+ 36. Kg5 f3 37. Rd3 f2 38. Rf3 gxh5 39. gxh5 Rh1 40. Kf5 f1=Q 41. Rxf1 Rxf1+ 42. Ke4 Rh1 43. Kf3 Re1 44. h6 Kf7 45. Kg2 Kg6 46. Kg3 Kg5 47. Kf3 Re3+ 48. Kg2 Kg4 49. Kh2 Re1 50. Kg2 Ra1 51. Kh2 Kf3 52. Kh3 Rh1#) 36. hxg6 hxg6 (36... h6 37. g5 hxg5+ 38. Kxg5 f3 39. Kg4 f2 40. Rd1 Re2 41. Rf1 Re1 42. Rxf2 Bxf2 43. Kf3 Bb6 44. Kf4 Kg7 45. Kg5 Rf1 46. Kh5 Rg1 47. Kh4 Kxg6 48. Kh3 Kf6 49. Kh4 Kf5 50. Kh3 Kf4 51. Kh2 Kf3 52. Kh3 Rh1#) 37. Rd6 {I had missed this as part of the sequence, which still leaves White losing, but now looking more dangerous.} Bf2+ {I thought for a long time here and could not come up with anything better.} (37... Bc5 $1 {ignoring the g-pawn is best.} 38. Rd3 (38. Rxg6+ $2 Kf7 39. Kg5 Be7+ {and White is finished.}) 38... Kf7 $19) 38. Kg5 Be3 39. Kxg6 { again, I'm still winning, but the pressure is starting to get to me. It's never fun when your opponent has a mate-in-one threat (Rd8).} Rd2 40. Re6 Rd8 41. Rf6 Rf8 {at this point I just wanted to try and exchange rooks to simplify down to a won piece-up endgame.} 42. Re6 f3 {here a bishop move is much simpler, but I had calculated that White couldn't take it without losing. I'm correct in the end, but had to find a desperation tactic to make it work.} 43. Rxe3 f2 44. Re7 {at first I despaired after seeing this move. The threat is a perpetual check on g7-h7. However, I soon saw the saving grace:} Rf6+ $3 { a powerful sacrifice which decides the game, comments Komodo via the Fritz interface.} 45. Kxf6 f1=Q+ {and the pawn queens with tempo, preserving my won game.} 46. Kg6 Qxb5 {the simplest way to proceed, taking more material off the board and covering the e8 square.} 47. Rg7+ {I had to calculate the following sequence before playing the queen move, but it wasn't that hard. White soon runs out of checks.} Kf8 48. Rf7+ Ke8 49. Rf5 Qd3 {a good illustration of why the queen dominates a rook in the endgame, she can work all of the angles and do things like impose pins.} 50. Kg5 b5 51. Re5+ Kf7 52. Rf5+ Kg7 53. Kf4 b4 { again, the simple but effective approach. My opponent cannot stop the b-pawn.} 54. Rg5+ Kf6 55. Rf5+ (55. Rh5 {does not save the day} b3 56. Rh6+ Kg7 57. Re6 b2 58. Re7+ Kg6 59. Rb7 Qd4+ 60. Kg3 Qe3+ 61. Kh2 Qf2+ 62. Kh1 Qf3+ 63. Kg1 Qxb7 64. Kf2 b1=Q 65. g5 Kxg5 66. Kg3 Qe1+ 67. Kh2 Qbh1#) 55... Qxf5+ $1 { and with both of us having calculated out the resulting won pawn endgame, my opponent resigned.} (55... Qxf5+ 56. gxf5 b3 57. Ke4 b2 58. Kd3 b1=Q+ 59. Kc4 Qb6 60. Kc3 Kxf5 61. Kd3 Qc5 62. Ke2 Ke4 63. Kd2 Qc7 64. Ke2 Qc2+ 65. Kf1 Kf3 66. Ke1 Qe2#) 0-1

17 June 2018

Annotated Game #190: Reasonable moves that don't work; blind spots

Analysis of this next tournament game produced a couple of interesting themes.  (It's worth noting that these types of insights are a common feature of analyzing your own games - lessons that will benefit your game in the future often simply highlight themselves during the process, in a very practical way.)

The first recurring theme is that my opponent makes some very reasonable-looking moves that don't in fact work in the position; examples include on move 8, move 10, and move 28.  How often do we make a move relatively quickly in a position, because it looks reasonable or perfectly normal, without actually working it out?  This can especially be a problem in the opening phase, when we reach a similar (but not exact) position to one we're familiar with, and make a move on autopilot that turns out badly.

The second theme is that of blind spots.  Here, for me it is the beautiful-looking Bg2 on the long diagonal, which I nevertheless should have looked to exchange around move 14 for a concrete advantage.  A lesser version of this long diagonal blind spot can be found on move 25, when I didn't even consider f3 as a possibility; however, when my opponent makes himself vulnerable on the long diagonal, I eventually find the idea.

[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "ChessAdmin"] [Black "Class B"] [Result "1-0"] [ECO "A26"] [Annotator "ChessAdmin/Komodo 11.2"] [PlyCount "103"] [EventType "simul"] [EventRounds "6"] {[%mdl 8192] A26: English Opening vs King's Indian with ...Nc6 and d3} 1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O 5. Nf3 d6 {my opponent indicates he is going for a KID formation rather than transposing into, for example, a Symmetrical English with ...c5} 6. O-O e5 7. d3 Nc6 8. Rb1 Be6 {a large number of different moves have been tried here by Black. The text move fights directly for d5, but may prematurely commit and expose the bishop.} 9. Ng5 { this takes advantage of the opportunity to pressures the Be6 and at the same time unleash the Bg2.} (9. b4 $5 {is also good, proceeding with the queenside expansion plan.}) 9... Qd7 10. b4 (10. Nxe6 {is preferred by the engine.} fxe6 {I thought at the time this would help Black, by clearing the f-file for his rook and strengthening his claim to the d5 square. However, White's queenside expansion comes first, beating Black's potential central play.} 11. b4 { and now the combination of the vulnerable Nc6 and b7 pawn becomes awkward for Black. For example} Nd8 12. b5 c5 (12... d5 $2 13. cxd5 exd5 14. Nxd5 Nxd5 15. Qb3 {now the Nd5 cannot escape the pin.} c6 16. bxc6 bxc6 17. e4 $18) 13. Qb3 $16 {with the simple plan of pushing the a-pawn.}) 10... Rab8 {a reasonable-looking move, with the rook protecting b7 and getting off the long diagonal, but White can rapidly realize an advantage.} (10... Bf5 $5 $14) 11. Nxe6 $16 Qxe6 12. Bg5 {done with the idea of getting the dark-square bishop off the first rank and potentially exchanging it for the Nf6, which is a key defender of d5.} (12. b5 {would instead force the issue for Black, for example} Nd4 13. e3 Nf5 {and now White has a pleasant choice of moves.} 14. Nd5 (14. Qa4 $5)) 12... h6 {I am perfectly happy to exchange.} 13. Bxf6 Qxf6 14. Nd5 { a nice square for the knight, but I should have been looking for more forcing opportunities on the queenside, which is vulnerable.} (14. Qa4 {this or immediately capturing on c6 are both good. I had a bit of a blind spot here, ignoring the concrete benefits of exchanging off the Bg2. It is beautifully positioned on the long diagonal, but capture possibilities should not be ignored as a result.} Nd4 15. Qxa7 c6 16. b5 $16) 14... Qd8 15. b5 Nd4 16. e3 { I've learned the hard way not to leave a centralized Black knight on d4, so immediately kick it. Without a dark-square bishop, having a pawn on e3 also does not cramp my pieces.} Ne6 17. a4 f5 {my opponent clearly wants to create some kingside counterplay, but the center of gravity is still on the queenside. } 18. Nb4 Kh7 {ignoring the coming threat.} 19. a5 {now Black's main problem is that the b-pawn cannot advance to b6 without giving up the c6 square to my knight.} Qd7 20. a6 bxa6 (20... b6 21. Nc6 Ra8 22. Bd5 $16 {and White's minor pieces are dominant.}) 21. Nxa6 {now Black's a-pawn is weak and isolated and my minor pieces are much more effective than Black's.} Rbd8 22. Ra1 (22. Bd5 { played first would have enhanced the bishop's domination and avoided Black's next move.} Ng5 23. h4 Ne6 24. Ra1 $18) 22... e4 23. d4 {the natural move, blocking Black's Bg7 and enhancing my central pawn structure.} Ra8 24. Nb4 (24. h4 $5 {is Komodo's idea, more or less forcing Black to fix the pawn structure on the kingside and then White has plenty of time to maneuver on the queenside. } h5 25. Ra2 $18) 24... Rfb8 $6 $18 (24... a5 {is the best try here, although it's not at all obvious, as it seems White can just take en passant on a6. However} 25. bxa6 $6 (25. Nc6 $16 {is best}) 25... c5 {and now Black has significant counterplay.}) 25. Ra2 (25. f3 {played immediately would be beneficial, as e4 is now vulnerable.} a5 26. Na6 $18) (25. Ra6 $5 {is a better version of the text move's idea of doubling rooks on the a-file. Black's a-pawn is blocked and the rook exerts lateral pressure along the 6th rank.}) 25... Rb7 $2 {now with Black lining both his rooks up on the long diagonal as targets, I find the correct move.} 26. f3 $18 Ng5 {the best try.} 27. fxe4 Nxe4 28. Qd3 Qe8 $2 {another reasonable-looking move that does not work.} 29. Rf4 ( 29. g4 {is the quicker path to victory, immediately undermining the Ne4.} c6 30. gxf5 gxf5 31. Rxf5 $18) 29... c5 30. Bxe4 fxe4 31. Rxe4 {at this point the game largely plays itself for White, although Black fights on.} Re7 32. Rxe7 Qxe7 33. dxc5 {following the rule of simplification when ahead.} dxc5 34. Nc6 Qc7 35. Qd5 {centralizing the queen and setting up a discovered attack threat against the Ra8.} Bf8 36. Rf2 {threatening a fork on f7.} Kg7 37. Ne7 {forcing material loss.} Qxe7 38. Qxa8 h5 39. Qxf8+ {and now with a 100 percent won K+P endgame, I simplify down. Black cannot protect his weak a- and c-pawns and also prevent the e-pawn from queening.} Qxf8 40. Rxf8 Kxf8 41. Kf2 Ke7 42. Kf3 Ke6 43. Ke4 (43. Kf4 Kf6 44. h3 Ke6 45. e4 Kd6 46. e5+ Ke6 47. Ke4 g5 48. h4 gxh4 49. gxh4 Ke7 50. Kf5 Kd8 51. e6 Ke7 52. Ke5 Kd8 53. Kf6 Kc7 54. e7 Kd7 55. Kf7 Kc7 56. e8=Q Kb6 57. Qd8+ Kb7 58. Kf6 a6 59. b6 a5 60. Qc7+ Ka6 61. Qa7#) 43... g5 {this is just a distraction, and now the g-pawn will also become a target.} 44. h3 h4 45. g4 {maintaining the opposition for White and forcing Black's king to give way.} Kd6 46. Kf5 a5 47. bxa6 Kc7 48. Ke5 {keeping the win simple.} Kb6 49. Kd5 Kxa6 50. Kxc5 (50. e4 Kb6 51. e5 Kb7 52. Kxc5 Kc7 53. e6 Kc8 54. Kd6 Kd8 55. c5 Ke8 56. c6 Kf8 57. e7+ Kg7 58. c7 Kh7 59. c8=Q Kg7 60. e8=Q Kh7 61. Qh5+ Kg7 62. Qch8#) 50... Kb7 51. e4 Kc7 52. Kd5 {and my opponent resigned.} (52. Kd5 Kd7 53. e5 Ke7 54. e6 Ke8 55. Kd6 Kd8 56. e7+ Ke8 57. c5 Kf7 58. c6 Ke8 59. c7 Kf7 60. c8=Q Kg7 61. Qf5 Kg8 62. e8=Q+ Kg7 63. Qef8#) 1-0

09 June 2018

Chess vs. Tennis - breaking through and momentum

The come-from-behind victory of Simona Halep in the 2018 French Open, which I just watched, reminded me of the Chess vs. Tennis lessons, as well as of course Andy Murray's breakthrough Grand Slam, after a huge amount of psychological pressure (both external and internal) to win.  The most important factor in Halep's victory was her being able to change the momentum of the game, which was all in her opponent's favor until partway into the second set (i.e. about halfway through the match).

Chessplayers experience very similar effects from momentum during an individual game, or over the course of a match.  The psychological impression of being under pressure, especially feeling that you are worse off and having to fight from an inferior position, can negatively effect your thinking and cause you to miss opportunities to equalize or even gain an advantage over your opponent.  On the other hand, it can also make us dig deep for strength and focus and lead to better play, eventually turning the tables on our opponent (as happened in Halep's match).

The best practical treatment of this phenomenon I've seen is in The Road to Chess Improvement by GM Alex Yermolinsky.  From the section on "Trend-Breaking Tools":
...Imagine a familiar scenario: your position is worse; moreover you feel that the trend is unfavourable.  You can't just sit around and wait, making normal, solid moves and watching your decline to continue - you may as well resign. This is what many chessplayers do - they mentally resign when things don't go their way.
Yermolinsky then goes on to offer several observations about how the momentum can shift, starting with a stubborn defence, assuming that the position is not in fact lost.  He says
...You may hate yourself for defending passively for many moves, but look at a bright side: your opponent knows he's better and he feels obliged to win - isn't that a pressure? ...Most of your opponents would be content with keeping their advantage in a secret hope that you'd go mad and self-destruct. If you simply can avoid that by just staying put, you'd be gaining some psychological edge even when your position is not improving.
He offers up a lot more besides this, but I'll let you see for yourself; the book is one of the best I've read on chess improvement.

Remember, if you can weather the storm and then start playing at the top of your own game, it can end with a victory...no matter the pressure.

Halep celebrates winning the French Open

05 June 2018

Annotated Game #189: Unnecessarily complicated

This next tournament game has the recurring theme of unnecessarily complicated moves by White (me).  At several points, I see tactical or other ideas which are slightly worse than the simple approach to the position, and choose to go with them.  This doesn't lose the game for me - an underdeveloped sense of danger about Black's advanced passed b-pawn does that - but it certainly contributes to setting up the conditions for the game-losing blunder.  Some useful lessons in there.

[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "ChessAdmin"] [Black "Class A"] [Result "0-1"] [ECO "A22"] [Annotator "ChessAdmin/Komodo 11.2"] [PlyCount "84"] [EventType "game"] {[%mdl 8256] A22: English Opening: 1...e5 2 Nc3 Nf6} 1. c4 d6 2. Nf3 {this is actually not played very often and has a relatively weak score (51 percent) in the database. Black's last move strengthened e5, so Nf3 is less effective than the alternatives.} (2. Nc3) (2. g3) 2... e5 3. Nc3 Nf6 4. d3 Be7 5. g3 O-O 6. Bg2 c6 {Black now has a rather effective version of an Old Indian Defense setup in place.} 7. O-O h6 {a classic restraining move, preventing ideas of White using g5.} 8. Rb1 a5 {restraining the idea of the b-pawn advance.} 9. a3 {White insists on the idea.} Re8 10. b4 axb4 11. axb4 Bf8 {part of the point of the earlier ...Re8, clearing f8 for the bishop, also a common idea in the Spanish Game / Ruy Lopez.} 12. b5 {the obvious follow-up for White.} d5 { the correct reaction for Black, who is well-supported in the center.} 13. Qc2 $6 {this does not in fact improve White's prospects any, so it would be better to go ahead and resolve the pawn tension.} (13. bxc6 bxc6 14. d4 Bf5 $11) 13... Qe7 {this queen move similarly does not do much for Black, although the idea of lining up on the e-file is clear.} (13... d4 $5 {is an interesting alternative, notes Komodo via the Fritz interface.} 14. Nd1 cxb5 15. Rxb5 Nc6 $15) 14. bxc6 $11 bxc6 15. Nxe5 {an unnecessarily complicated tactical idea.} ( 15. cxd5 Nxd5 16. Bd2 {and White has a comfortable game.}) 15... Qxe5 $11 16. Bf4 {regaining the piece via the skewer/double attack on the Nb8.} Qf5 17. e4 { this is slightly inferior and again unnecessarily complicated.} (17. Bxb8 Bd7 18. Bf4 $11 {and now if} dxc4 {which I was worried about due to the pin on the d-pawn,} 19. Ne4 cxd3 20. exd3 $11 {and everything is fine.}) 17... dxe4 18. dxe4 Qe6 19. Rxb8 Rxb8 20. Bxb8 Qxc4 {now the position is imbalanced, with Black having a passed pawn on the queenside. The engine rates it with only a slight edge to Black, but I think it's a harder position for White to play, at least at the Class level.} 21. Rc1 Be6 22. Qb2 Nd7 23. Bf4 g5 24. Nd5 {again with the unnecessarily complicated theme.} (24. Be3) (24. Bf1 $5) 24... Qa4 { White has an active position} (24... Qd3) 25. Ra1 Qb5 {Black chooses to force the queen exchange, as otherwise I would have two minor pieces hanging.} 26. Qxb5 cxb5 27. Nc7 {forcing additional simplification.} Rc8 28. Nxe6 fxe6 { my position has now improved strategically, with the two bishops and Black's pawns less able to protect each other, which should make it easier for me to play, although technically the game is still balanced.} 29. Be3 b4 30. Ra7 { active rook placement on the 7th rank.} Nc5 31. f4 $4 {the game-losing blunder. I neglect the concrete threat Black's advanced b-pawn is capable of making, which could be easily contained.} (31. Ra5 $11) (31. Bh3 {is also good, restraining b4-b3 due to the bishop's pressuring of e6.}) 31... gxf4 $19 32. gxf4 b3 33. Bd4 Rb8 {and now material loss is inevitable for White.} 34. Ra1 Rb4 35. Bc3 (35. Bxc5 Bxc5+ 36. Kf1 b2 37. Rb1 Bd6 $19) 35... Rc4 36. Be5 Nd3 37. Bf1 (37. Bh3 {is not the saving move} Bc5+ 38. Kg2 Kf7 $19) 37... Nxe5 $1 { well done by Black, giving up the rook for a winning position.} 38. Bxc4 (38. fxe5 b2 39. Rb1 Bc5+ 40. Kh1 (40. Kg2 Rc2+ 41. Kg3 Bd4 $19) 40... Rc1 $19) 38... Nxc4 39. Ra8 {just desperation at this point.} (39. Rb1 {there is nothing else anyway} Bc5+ 40. Kg2 b2 {and after ...Bd4 and ...Nd2 I'm lost.}) 39... Kf7 40. Ra7+ Kg6 41. Kf2 $2 {a blunder, but it just hastens the inevitable.} Bc5+ 42. Ke2 Bxa7 0-1