20 April 2014

Jennifer Shahade on the English

For those looking to play (or play against) the English Opening, Jennifer Shahade recently posted a lecture from the Saint Louis Chess Club on YouTube, as flagged on the Improving Chess Player blog.  The first several minutes are of general interest in terms of discussing the opening, with the remainder of the time spent analyzing a specific game.  She also covers some very useful general ideas as part of that, including pertinent middlegame concepts.  Some highlights:
  • Insightful discussion about the general value of playing 1. c4 as White and the difficulties of selecting a Black system against it
  • Transposition and move-order issues
  • Comments on when to calculate and when simply to play chess
  • Relative value of pieces in the opening, middlegame and endgame - especially fianchettoed bishops
  • The value of looking at tactical ideas, even when they currently do not work
  • The advantage of expanding in the center and kingside when the opportunity exists, even when "normal" play in the English features a queenside strategy.  It was comforting to see that other English players at the Class level also have this blind spot, which is something I've addressed previously on the blog.
The production value of the video is high quality, with a large board complemented by a view of the commentator, although some of the questions from the audience are not quite audible.

19 April 2014

Annotated Game #122: Best Game Ever

This final-round tournament game was the best result ever in my chess career, as it featured the defeat of a 2100+ player.  It also pulled together in one game many of the core elements of my training and improvement program:
  • My play was blunder-free, which was the result of consistently following the simplified thought process.
  • Despite the over 400-point ratings gap, I rejected ratings fear and loathing and simply played to the best of my ability.  My opponent, on the other hand, appeared to be playing my rating and not the board, as he passed up multiple drawing lines from inferior positions.
  • Similarly, I was able to have the mental toughness necessary not to offer a draw in a better position simply because of the ratings differential, which was a strong temptation at various points.
  • I was able to spot key tactics on different occasions by keeping in mind the importance of CCT (checks, captures, threats) regardless of whether they appeared possible at first glance.
The game was an interesting one right from the start, as my opponent went into the aggressive Bellon Gambit against the English.  I had seen a mention of it previously, but the extent of my knowledge was limited to the fact that declining it with 5. d3 was the best option.  (This is one of those rare cases where declining a gambit is the only path to an advantage, rather than accepting it.)  For those interested in the theory - which I did not follow during the game - there are a series of excellent articles on ChessCafe.com that I found afterwards.

It struck me as obvious from the start that my opponent was rather contemptuous of my rating, although he was polite enough personally.  The choice of such an aggressive and not fully sound gambit line is consistent with that assessment, as he was clearly seeking to create an imbalanced game and exploit anything I did to stumble along the way.  He did not seem to expect me to decline the gambit, as he had to do some thinking after that occurred.  Nevertheless, he got most of what he wanted out of the opening, which is designed to give Black an advantage in the center by allowing him to occupy d5 with a pawn.

Despite some uncomfortable moments, I managed to equalize and by move 18 had a clear strategic target in my opponent's hanging pawns structure.  Some relatively weak play by my opponent, apparently again motivated by a desire to avoid drawing lines, allowed me to establish a bind in the center and eventually find a tactical shot that won the key c-pawn.  Subsequent play gave me the initiative and a positional advantage, but nothing decisive until I found another, more devastating tactical follow-up.  After that it still was not easy, as my opponent fought hard and sacrificed additional material to threaten a mate in one - which he never was able to execute, as my calculated attack came first.

While my play was hardly perfect, having missed some opportunities along the way, it was sufficient to the task.  I was especially heartened by my ability to find the necessary tactical opportunities and correctly calculate them, along with my ability to cope with the pressure of an intense 50+ move game.  I would not have been able to play this game without the benefits of the training program and the insights offered by my studies, since beginning this blog.

[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "ChessAdmin"] [Black "Expert"] [Result "1-0"] [ECO "A22"] [Annotator "ChessAdmin/Houdini"] [PlyCount "115"] {A22: English Opening: 1...e5 2 Nc3 Nf6} 1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 b5 {the Bellon Gambit. Other moves do not sufficiently justify Black's audacious previous move.} 5. d3 {declining the gambit nets White a 68 percent score in the database.} (5. cxb5 {is the gambit accepted, in which Black gets a strong center as compensation for the pawn.} d5 6. d3 h6 7. Nh3 $11) 5... exd3 (5... bxc4 6. dxe4 {and White is doing well, with the Nxf7 sacrifice a main theme if Black tries to kick the knight with ...h6.}) 6. Qxd3 {Since my theoretical knowledge had run out on move 5, I decided to proceed with the safe-looking queen recapture.} (6. cxb5 {is the professionals' answer. It looks a bit strange to take the pawn now rather than earlier, but in this variation Black cannot establish a strong central presence. For example} h6 7. Nf3 dxe2 8. Bxe2 Bc5 9. O-O $14) 6... bxc4 7. Qxc4 d5 {Black is now able to establish himself in the center.} 8. Qb3 {I thought for a while before playing this. There did not seem to be an obviously optimal square for the queen, so I decided to stay on the a2-g8 diagonal.} (8. Qa4+ Bd7 9. Qb3 {is an improved version of the idea. The Bd7 is actually a drawback for Black, since it blocks the queen on the d-file and no longer protects b7.} h6 10. Nf3 Be6 11. Nd4 Bc5 12. e3 $11) 8... h6 9. Nf3 Be7 $146 {my opponent likely did not even consider the more active posting for the bishop on d6, which is possible tactically and occurred in the following game:} (9... Bd6 10. g3 (10. Nxd5 $2 Nxd5 11. Qxd5 Bb4+) 10... O-O 11. Bg2 Na6 12. O-O Rb8 13. Qa4 Rb4 14. Qd1 c6 15. a3 Rb7 16. b4 Re8 17. Qd3 Nb8 18. b5 Ne4 19. bxc6 Rb3 20. Bd2 Nxc3 21. Bxc3 Nxc6 22. Nd2 Ne5 23. Qd4 Rb5 24. a4 {Svarc,R (2166)-Pribyl,J (2035) Czechia 2006 1-0 (51)}) 10. Bf4 O-O 11. e3 {White is still a little uncomfortable with the king in the center, but is close to solving his opening problems.} Na6 {heading for the c5 outpost.} 12. Be2 (12. Qa4 {would be a creative way of combating Black's plan.} Nc5 $6 (12... Ne4) 13. Qc6) 12... Nc5 13. Qc2 Ne6 {my opponent thought that this was a poor move, driving the bishop to a good square. Houdini considers it the best square for the knight, however and it gains a tempo by hitting the Bf4.} 14. Be5 c6 {he also considered c5 best here.} (14... c5 {however is evaluated as weakening Black's position by the engine.} 15. O-O Bb7 16. Rad1 { and White has good prospects of targeting the hanging c/d pawns.}) 15. O-O Bd6 {he believed (as did I) that the subsequent bishop trade was bad for Black, as it highlights his dark-square weakness. On the other hand, it removes a strong central piece for White, thereby increasing Black's own control there.} 16. Rac1 Ng4 {this seems unnecessary.} (16... Bxe5 {would seem to be the logical follow-up for Black.} 17. Nxe5 Qd6 18. Nf3 $11) 17. Bg3 {my opponent seemed surprised by the retreat. This is not a bad move, as after the exchange it gives White's king access to h2 and further controls f4 and h4.} (17. Bxd6 Qxd6 18. h3 {would be very similar, with a slightly less compromised pawn structure in front of the king.}) 17... Bxg3 18. hxg3 {by this point White has emerged from the opening in good shape and with some clear strategic objectives, namely targeting the hanging c/d pawns. Black by contrast has no obvious weaknesses to attack and his pieces are not well coordinated.} Qd6 $6 {this does nothing to help solve Black's problems. He is slightly underdeveloped and needs to get his bishop and rooks into the game. The queen visually looks well-posted on d6, but in fact it is not doing much there and it would have been better to reserve judgment on its development.} (18... Bd7 {looks best, reinforcing the weak c-pawn and connecting Black's pieces on the back rank.}) ( 18... Rb8) 19. Na4 {necessary to freeze the c-pawn in place.} Bd7 20. Nc5 $14 { physically blockading the hanging pawn on the c-file, which Black cannot break with exchanges. The knight likes it on c5, comments Houdini via the Fritz interface.} Rfc8 21. Rfd1 Rab8 22. b3 {Black has no threats and White has maneuvered his forces to neutralize the hanging pawns.} Be8 $6 {Black prevents an exchange on d7, but this loses a valuable tempo and severely reduces the piece's scope.} (22... Nf6) 23. Nd4 Nf6 {this misses a tactical opportunity for White, although I overlook it as well.} (23... Nxd4 24. Rxd4 Nf6) 24. Nf5 { a good move, and what I had focused on with the Nd4 idea, but there was a better one that allowed the win of the c-pawn.} (24. Ncxe6 fxe6 25. Ba6 Rd8 ( 25... Rc7 26. Nb5) 26. Nxc6 Bxc6 27. Qxc6 Rb6 28. Qxd6 Rdxd6 29. Rc8+ Kf7 30. Bd3 $16) 24... Qf8 25. Ba6 Rc7 26. Be2 Rb6 {here I would have taken a draw by repetition, not seeing a concrete way of converting my positional bind. Given Black's problems, he should have allowed it to occur and acknowledged as much afterwards. White doesn't seem like he can make any more progress, but Black has nothing and is in a worse position.} (26... Rcc8 27. Ba6 {etc.}) 27. Nd4 { having chased the queen from her central post, the knight returns to its, pressuring e6 and c6.} Ng5 (27... Bd7 28. Ndxe6 Bxe6 {would free the bishop from its e8 prison.}) 28. a3 Nge4 29. b4 {gaining space and solidifying control of c5.} g6 {this prevents the knight from returning to f5, but also weakens the kingside pawn structure. This eventually becomes a fatal flaw.} 30. Na4 {here I was again unsure how to make meaningful progress, so looked at a possible repetition of moves.} (30. Nxe4 Nxe4 31. Bf3 Re7 (31... Nf6 32. Nb3) 32. Bxe4 Rxe4 33. Rd3 $16 {would have been a rather simple and effective line of play, simply looking to line up against the c-pawn after Rc3.}) 30... Rb8 $14 31. Nc5 Re7 $2 {another chance at repetition spurned; Black apparently missed the next tactic, being too focused on trying to create his own threats.} (31... Nxc5 $5 {would prompt a series of exchanges.}) 32. Nxc6 $1 $16 {with the rook on e7, White now has the fork and Black must capture the knight with the bishop, which however will be undefended.} Bxc6 33. Nxe4 Nxe4 (33... dxe4 34. Qxc6 Kg7 35. Qc5 $16) 34. Qxc6 a5 {an interesting way to make threats and attempt to win back the pawn, but White has an extra tempo with his own threats.} (34... Qg7 35. Rd4 Qe5 36. Qxd5 Nxg3 37. Bf3 $18) 35. Rxd5 {a good move, but not the best.} (35. bxa5 {would have given White a clear advantage} Rb2 36. Re1 $18 {and White can easily hold the kingside while Black must contend with the advanced passed a-pawn.}) 35... axb4 $14 36. axb4 Rxb4 37. Rcd1 (37. Bc4 {may have been a more useful move, activating the bishop and creating some latent tactical possibilities along the a2-g8 diagonal and against the Ne4.}) 37... Rb8 {Black correctly withdraws the hanging rook to a safer square. At this point, White is a pawn up, has the initiative and will have a favorable BvN situation in the endgame, but it's unclear if this will be enough to win; likely not.} 38. R5d4 Re6 $6 {this simply drives the queen to a better square. Less obviously, it also creates tactical targets for White. } (38... Rc8 39. Qxc8 Qxc8 40. Rd8+ Re8 41. Rxc8 Rxc8 42. Bf3 {and the endgame is on.}) 39. Qc2 $16 Nf6 $2 {dealing with the obvious threat to the knight, but missing the deeper tactical threats.} (39... Rc8 {Black has to make counter-threats rather than withdrawing the knight.} 40. Rc4 Rce8 $16) 40. Bc4 $1 $18 {the bishop dominates the diagonal, slicing through both the rook and the pawn.} Rc8 41. Qd3 Rxc4 {there is no better alternative, as otherwise Black has the Re6 taken or is faced with Qxg6 due to the pin on f7.} 42. Qxc4 Kg7 43. Rd8 {White is now the exchange and a pawn up, with a dominant position, but Black is not going to go quietly and I still have a lot of work to do, there not being an obvious path to victory. This phase of the game was just as intense, if not more so, than the previous ones.} Qe7 44. Qc3 {I felt pinning the knight was a good start.} Re5 45. Qc8 {not the optimal place for the queen, as White will not be able to make anything out of the domination of the 8th rank.} (45. Qb2 Rc5 46. R8d5 {taking advantage of the pinned Nf6} Rc6 47. Rd7 $18) 45... h5 46. R1d6 (46. Qc3 {seems even better}) 46... Rxe3 {this quickly loses, although it temporarily looks scary for White. Once I had correctly calculated the variations, I knew I had won.} (46... Rb5 {was afterwards suggested by my opponent and is also Houdini's preference.} 47. Qa6 Rb1+ 48. Rd1 $18 (48. Kh2 $4 Ng4+ 49. Kh3 Rh1#)) 47. fxe3 Qxe3+ 48. Kf1 $18 {the winning move, otherwise Black gets a perpetual.} (48. Kh2 Ng4+ 49. Kh3 Nf2+ 50. Kh2 Ng4+) 48... Ne4 {a scary position, but now White's attack comes and cannot be stopped.} 49. Rg8+ Kh6 50. Rh8+ (50. Qf8+ {I also looked at, but could not see the mate the engine finds, which is rather wild.} Kg5 51. Rd5+ Kg4 52. Qc8+ f5 53. Qxf5+ Kxg3 54. Qh3+ Kf4 55. Qh4#) 50... Kg5 51. Rd5+ f5 (51... Kf6 52. Qd8+ Kg7 53. Qf8+ Kf6 54. Rd6+ Nxd6 55. Qxd6+ {and White is a rook up with Black no longer having any possible counterplay.}) 52. Rxf5+ $1 {I was now able to calculate that I had a mate, even if not the quickest one possible.} gxf5 53. Rg8+ Kf6 54. Qd8+ Ke6 55. Re8+ Kf7 56. Qe7+ Kg6 57. Qe6+ (57. Rg8+ Kh6 58. Qg7#) 57... Kh7 (57... Nf6 {is not the saving move} 58. Rg8+ Kh7 59. Qf7+ Kh6 60. Qg6#) 58. Qg8+ (58. Qg8+ Kh6 59. Re6+ Nf6 60. Rxf6#) 1-0

13 April 2014

Annotated Game #121: Quiet Symmetry

This penultimate round tournament game was a quiet Symmetrical English, which I thought my lower-rated opponent played well, although he was obviously unfamiliar with it.  It is one of those openings which Class players rarely use, perhaps because it lacks excitement or seemingly violates standard opening principles.  It also requires a good deal of patience to play properly and involves a lot of positional maneuvering.

Although the game appeared equal almost all the way through, in subsequent analysis, there were some improvements lurking for White, especially with 14. Bh3! - not a decisive move in tactical terms, but it would have resulted in a long-term positional advantage.  During the game I never considered moving the fianchettoed bishop off of g2, its "natural home".  Finding (and remembering) these types of moves is a key benefit of the game analysis process.

[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "ChessAdmin"] [Black "Class C"] [Result "1/2-1/2"] [ECO "A39"] [Annotator "ChessAdmin/Houdini"] [PlyCount "59"] {A39: Symmetrical English vs ...g6:4 Bg2 Bg 5 Nf3 Nf6 6 0-0 0-0 7 d4} 1. c4 Nf6 2. Nc3 c5 3. Nf3 Nc6 4. g3 g6 5. Bg2 Bg7 {the Symmetrical Four Knights variation.} 6. O-O O-O 7. d4 cxd4 8. Nxd4 Nxd4 9. Qxd4 d6 10. Qd3 {the standard retreat, getting out of the way of a discovered attack from the Bg7.} Qc7 {this is less active than Black's standard plan of pursuing queenside expansion with a6, Rb8 and b5.} 11. Bd2 Be6 12. Nd5 {White decides to force at least one piece exchange.} (12. b3 {is instead the obvoius reinforcing move. An example from master play:} Rac8 13. Rac1 Qb8 14. h3 Bd7 15. Bg5 Rfe8 16. e4 Bc6 17. Rfe1 a6 18. a4 Nd7 19. Nd5 Bxd5 20. exd5 Bf6 21. Bxf6 exf6 22. a5 Re5 23. Rxe5 fxe5 24. Qe3 b6 25. axb6 a5 26. Ra1 Rc5 27. h4 Qxb6 28. h5 Qd8 29. Qd2 Kg7 30. Bh3 f5 31. h6+ Kf7 32. Bf1 Qb6 33. g4 fxg4 34. Qe3 Qd8 35. Be2 Qh4 36. Kg2 Qh3+ 37. Qxh3 gxh3+ 38. Kxh3 Kf6 39. Bg4 Nf8 40. Kh4 g5+ 41. Kh5 Ng6 42. Be6 Nf4+ 43. Kg4 Nxe6 44. dxe6 e4 45. f4 exf3 46. Kxf3 Kxe6 47. Kg4 Re5 48. Rd1 Re3 49. Rd5 Rxb3 50. Rxa5 Rb4 51. Kxg5 Rxc4 52. Ra7 Rc5+ 53. Kg4 Kf6 54. Rxh7 Kg6 {1/2-1/2 (54) San Segundo Carrillo,P (2508)-Ilic,L (2282) Ohrid 2001}) 12... Bxd5 $146 (12... Nxd5 13. cxd5 Bd7 14. Rac1 Qb6 15. Bc3 {is Houdini's preferred line, although the engine would at this point play a rook to c8 instead of exchanging down towards a draw, as in this example game.} Bxc3 16. Qxc3 Rac8 17. Qd2 Rxc1 18. Rxc1 Rc8 19. Rxc8+ Bxc8 20. Qc3 {1/2-1/2 (20) Stejskal,D-Elias,M Loucovice 1979}) 13. cxd5 {White now has the pair of bishops, so possesses a concrete if slight advantage.} Rfc8 $6 (13... Qb6 14. b3 $11) 14. Rac1 {White goes for the obvious threat, missing the bishop's possible "sniper shot" move.} (14. Bh3 $1 Rcb8 15. Rac1 Qd8 16. Rc2 $14 { and White can build up on the c-file with Black having no real counterplay.}) 14... Qd7 {White should now ensure his b-pawn will not drop off to the Bg7; however, instead of the next move, b3 should work fine.} 15. Bc3 {this eventually leads to an (unforced) exchange of the dark-square bishops, which then eliminates the advantage of the two bishops. Black should have no trouble dealing with the remaining bishop alone.} Rc7 16. Rc2 Rac8 17. Rfc1 Nh5 18. Bxg7 {the exchanges now result in an equal position with no real prospects for White (or Black).} (18. Ba5 {would have allowed White to avoid the exchange.}) 18... Rxc2 19. Rxc2 Rxc2 20. Qxc2 Nxg7 21. e4 {here the game is very equal, as White's bishop has limited scope and Black has plenty of time to re-deploy his knight.} Ne8 22. h4 Qc7 23. Qxc7 Nxc7 {down to a drawn minor piece endgame now. } 24. Kf1 Kg7 25. Bh3 (25. Ke2 {is better, centralizing the king immediately in order to combat any ideas of the Black knight penetrating White's position.} ) 25... Kf6 26. f4 e6 27. dxe6 (27. e5+ {is something that I looked at over the board, but decided (correctly) that it didn't lead to anything for White. I was pleased to have at least spotted and calculated this tactical possibility, however, rather than just ignoring it.} Ke7 $11 (27... dxe5 $4 28. d6 Nd5 29. fxe5+ Kxe5 30. d7)) 27... fxe6 28. Ke2 Na6 29. Ke3 b6 30. a3 { and I offered a draw, which was accepted after a couple minutes' thought.} (30. Bf1 {would have been the way to try and play on in search of an advantage.}) 1/2-1/2

07 April 2014

Annotated Game #120: Breaking the pattern

In the tournament I've been analyzing (Annotated Games 116-119), by the fifth round I had a 2-2 score and White had won every game.  I resolved as Black in this game to break that pattern and successfully did so.  My opponent opened with a transposition to Sokolsky's Opening (featuring an early b4, in this case on the second move) - not an opening to be sneered at, but it shouldn't be feared either.

This was the first time I had faced the opening in a serious game and to meet it I relied on a piece of advice I had read at some point earlier in my career, which was to play a Queen's Indian Defense setup against it.  This is not an attempt to "punish" the opening by challenging it directly; rather, the idea is to give Black a solid setup and achieve an easy equality without creating any obvious weaknesses.  (I took a similar overall approach when playing against 1. b3 more recently - see Annotated Game #106 - although with a different defense.)  The strategy worked, as White left his kingside bare and allowed me to play a (first) classic bishop sacrifice.  In the late middlegame I even was able to use some ideas from the Dutch Stonewall to seal the victory.  (This is an example of how effective it can be to "cross-train" openings, a topic I hope to treat at greater length.)

In terms of my opening preparation, I was pleased that this game justified my decision to briefly examine the opening, determine a strategy against it, then move on and concentrate on more popular setups.  I believe that facing offbeat openings with healthy respect is definitely the way to go, rather than believing you can beat somebody in the opening phase in their pet line, simply by applying some general principles and playing aggressively.  Flank openings without obvious targets to go after, such as in this game, can become passive and ultimately succumb to a more traditional approach of central play, in this case combined with a kingside attack.

[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Class C"] [Black "ChessAdmin"] [Result "0-1"] [ECO "A00"] [Annotator "ChessAdmin/Houdini"] [PlyCount "58"] {A00: Irregular Openings} 1. Nf3 Nf6 2. b4 e6 3. a3 Be7 4. Bb2 O-O 5. e3 b6 { going into a Queen's Indian-type setup, which scores 50 percent in the database (from a small number of games).} 6. Bc4 $146 {now out of the database. Lining the bishop up against Black's strong pawn formation does not seem productive. Other moves played here include d4 and c4.} d5 {the obvious retort. } 7. Bb3 {getting out of the way of the c-pawn, which would allow for the c4 break.} Ba6 {with the idea of making White work in order to be able to castle and controlling the c4 square again. It is too easily blocked or chased from its post, however.} (7... Bb7 {probably makes more sense, though; see next note.}) 8. Nc3 (8. d3 {would essentially neutralize the Ba6, preparing both for castling kingside and to push c4 in the future.}) 8... Nbd7 {a solid approach.} (8... c5 $5 {would immediately gain space.} 9. b5 Bb7) 9. b5 { an aggressive, committal move. Although this makes the Ba6 retreat, White is beginning to look a little overextended on the queenside.} Bb7 $15 {while the long diagonal is currently blocked, the bishop will have excellent prospects once the d5 pawn is advanced or exchanged.} 10. d4 {blocking the Bb2's path is counterproductive for White.} Rc8 (10... c5 {is also a good option here.} 11. bxc6 Bxc6 12. O-O b5 {gaining space on the queenside and keeping the rook on the a-file for possible action there.}) 11. O-O c5 12. bxc6 Bxc6 {this is a somewhat awkward placement for the bishop, but I had thought it would be even worse for the rook. Houdini considers the rook option to be better, interestingly.} (12... Rxc6 {I had originally thought fruitless, due to} 13. Ba4 {but Houdini likes simply retreating the rook here.} Rc8 {with the plan of pushing a6 and b5. For example} 14. Rc1 a6 15. Bxd7 Nxd7 16. Ne5 b5 {and Black is looking very strong on the queenside, with no counterplay from White.}) 13. Ne2 {but then my opponent lets my light-squared bishop achieve freedom anyway.} (13. Qe2 Bb7 14. Rac1 a6) 13... Bb5 14. Re1 Ne4 {another drawback to my opponent's 13th move, allowing Black to occupy e4 unchallenged.} 15. Nd2 Ndf6 { this funneling through of the knights to e4 and f6 happens to be a typical idea of the Dutch Stonewall, and is well applied here.} 16. Ng3 (16. f3 { would be the analagous White move in the Stonewall.}) 16... Nxd2 {necessary to prevent the double exchange on e4.} 17. Qxd2 Bd6 {the bishop moves to a diagonal with attacking potential. Note the comparison with its White counterpart, walled off on b2.} 18. Rac1 $6 {ignoring the storm clouds gathering on the kingside.} (18. f3 {is a computer-like defensive move found by Houdini. However, my opponent seemed to dislike thinking about defense and preferred to focus on his queenside plans.} Bc4 $15) 18... Qe7 $17 {another preparatory move, the idea being to connect the rooks and keep the queen on the d8-h4 diagonal for possible use on the kingside.} (18... Bxg3 {is preferred by Houdini.} 19. hxg3 Ne4 20. Qd1 f5 {Black is clearly superior, although there is no knockout yet. The rook lift idea (...Rf6) in this Stonewall-type formation is a strong one, however.}) 19. Ne2 $4 {leaving the kingside wide open.} Ne4 $19 20. Qd1 Bxh2+ $1 {the first time that I've played this type of bishop sacrifice and following a long calculation.} 21. Kxh2 Qh4+ (21... Nxf2 {I did not consider at this stage, only the on the next move.} 22. Qd2 Qh4+ 23. Kg1 Ng4 24. c4 Qh2+ 25. Kf1 dxc4 {and White starts to lose material or be mated, for example} 26. Ba2 c3 27. Qd1 Qh1#) 22. Kg1 Qxf2+ ({ I also looked hard at} 22... Nxf2 {; Houdini considers them equal.}) 23. Kh2 f5 {this is also the first rook lift that I've planned and executed. A good idea, but not the best one in the position.} (23... Qh4+ {I also examined, but could not see a concrete way to advantage.} 24. Kg1 Nf2 $19 25. g3 Qf6 {I wasn't able to see anything concrete for Black past this point. Houdini however demonstrates that White can't avoid losing major material or being mated.} 26. Qd2 Ne4 27. Rf1 (27. Qd1 Qf2+ 28. Kh1 Bxe2 {with the mate threat of Nxg3 being decisive.}) 27... Qxf1+ 28. Rxf1 Nxd2 $19) 24. Nf4 {the best defensive move. White's queen can now come to f3 or h5.} g5 {the best attacking idea, also borrowed from the Dutch Stonewall, which the game now closely resembles (except for White's bishops doing nothing on the queenside).} (24... Rf6 { I had considered, but thought that White had sufficient resources to counter Black's threats.} 25. Qf3 Rh6+ 26. Nh3 Qxf3 27. gxf3 Ng5 28. Kg2 Nxh3 29. Rh1 Ng5 30. Rxh6 gxh6 {and Black looks to have a won endgame, although it would not be the easiest to convert.}) 25. Nxe6 $4 {Taking the wrong pawn. I had calculated that this wouldn't work, but I nevertheless thought that my aggressive opponent might go for it.} (25. Nxd5 Qh4+ 26. Kg1 g4 {taking away the f3 square from the White queen and renewing the attack, whle the Nd5 still hangs.} (26... exd5 $2 27. Bxd5+ Kg7 28. Bxe4 Qxe4 $11) 27. Ne7+ Kf7 28. Nxf5 ( 28. Nxc8 Qf2+ 29. Kh1 Ng3+ 30. Kh2 Ne2 31. Qxe2 (31. Rxe2 $4 Qh4+ 32. Kg1 g3) 31... Bxe2 32. Rxe2 Qxe2 $19) 28... Qf2+ 29. Kh1 Qxf5 $19) (25. Qf3) 25... Qh4+ 26. Kg1 Rf6 {Black is now unstoppable on the h-file.} 27. Bxd5 {my opponent apparently saw the nice tactics now available for White, but Black's come first.} Qf2+ 28. Kh2 Rh6+ 29. Qh5 Rxh5# {my opponent clearly saw the mate after the 27th move, but was apparently one of those players who doesn't resign, regardless of the position.} 0-1

05 April 2014

Commentary: Candidates 2014 - Round 3

The recent conclusion of the 2014 Candidates was disappointing - but only because I hated to see it end.  Anand showed what it meant to be a world-class competitor, ignoring everyone who declared his winning chances to be nil - which included the majority of the chess world, or at least the pundits - and outplaying everyone over the course of the tournament.

In this game from round 3, Anand plays a solid game in the Slav, but then does not hesitate to unbalance things and seize the initiative once White becomes overly aggressive.  Perhaps Mamedyarov was relying on the continuation from the Ivanchuck-Vallejo Pons game cited in the annotations, but Anand finds a more active pawn break and then shows how central domination can lead to tactical threats which White in the end simply cannot shake.

[Event "FIDE Candidates Tournament 2014"] [Site "Khanty-Mansiysk"] [Date "2014.03.15"] [Round "3"] [White "Mamedyarov, Shakhriyar"] [Black "Anand, Viswanathan"] [Result "0-1"] [ECO "D23"] [WhiteElo "2757"] [BlackElo "2770"] [Annotator "ChessAdmin/Houdini"] [PlyCount "61"] [EventDate "2014.??.??"] [EventCountry "RUS"] [TimeControl "40/7200:20/3600:900+30"] 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Qc2 dxc4 5. Qxc4 {we now have a position normally classified as belonging to the Queen's Gambit Accepted opening. However, I believe it is a good way for Slav players to meet White's fourth move, staying consistent with the spirit of the defense.} Bg4 (5... Bf5 { is by far the most played here, although the text move scores slightly better and is the "hot" move according to ChessBase. This is consistent with other lines of the Slav, where ...Bg4 is now more often played or at least considered viable.}) 6. Nbd2 Nbd7 7. g3 (7. e3 {at first glance seems the logical follow-up, but the text move's plan of developing the bishop on the long diagonal is the overwhelming favorite. In this variation, White's dark-squared bishop is more cramped, whereas in the game it can go to e3 later. }) 7... e6 8. Bg2 Be7 {Black has pursued standard development and can be considered equal at this point, with a solid position.} 9. Ne5 {very few games have continued this way, with most continuing O-O. The text move only scores 33 percent for White. With the knight sally, White hits the Bg4 (a difference from the Bf5 lines).} Bh5 {moving the bishop to f5 would not make sense, as White could then play e4 with tempo.} 10. Nxd7 (10. Ndf3 {would be my preference, reinforcing the Ne5.}) 10... Nxd7 {with this move, Black chooses to fight for the c5 and e5 squares, with the idea of allowing a pawn break; Anand in fact will play the ...e5 break.} 11. O-O O-O 12. Nb3 {White reinforces the d4 pawn - which otherwise is awkwardly guarded by the queen - and eyes c5, while freeing up the Bc1. Black can immediately challenge the knight's placement, however.} a5 13. a4 {blocking the Black pawn's further advance.} (13. Nc5 {anticipating the Black pawn advance to a4 results in a rather awkward situation for White, largely because of the d-pawn.} Nb6 14. Qd3 Bxc5 15. dxc5 Qxd3 16. exd3 Na4) 13... Bb4 {with the a-pawn no longer a threat, the bishop moves to a more active outpost.} 14. e4 e5 $146 {Anand's novelty, according to the database. White may have been confident in this line due to the result of the following game:} (14... Qe7 15. Be3 Rfd8 16. f4 Kh8 17. Rf2 f6 18. Bd2 e5 19. Bxb4 axb4 20. fxe5 fxe5 21. d5 Rac8 22. Rc1 Nb6 23. Qc5 Qxc5 24. Nxc5 cxd5 25. Bh3 Ra8 26. a5 Nc4 27. Nxb7 Rf8 28. Rxf8+ Rxf8 29. exd5 Nxb2 30. d6 Bf3 31. Rc8 Rxc8 32. Bxc8 Bc6 33. d7 Bxd7 34. Bxd7 Nc4 35. Be6 b3 36. Bxc4 b2 37. Ba2 {1-0 (37) Ivanchuk,V (2769) -Vallejo Pons,F (2697) Istanbul 2012}) 15. Be3 {the bishop finally gets into the game.} exd4 16. Bxd4 Kh8 { a preventive measure, stepping out of the pin on the a2-g8 diagonal.} 17. e5 $6 {overly optimistic, looking to seize space on the kingside. Anand's previous move allows him to combat it with the ...f6 break.} (17. Rac1 {would be an example of a more solid continuation.}) 17... Re8 18. f4 f6 19. exf6 (19. e6 { would eventually lose the pawn.} Nb6 20. Bxb6 Qxb6+ 21. Kh1 Qe3 22. Nd4 Rad8 23. Nc2 Qxe6 $17) 19... Nxf6 $15 {taking stock of the position, Black's pieces look much more active and coordinated. White now attempts to reduce this advantage through an exchange of minor pieces.} 20. Bf3 Bxf3 21. Rxf3 {without the light-squared bishops on the board, Black dominates fewer squares in White's camp, but the absence of White's bishop is now felt in the center, which Black seizes on.} Re4 {Black now takes over the initiative, with play revolving around the pinned bishop.} (21... c5 22. Bc3 Re4 {is a variation on the same idea.} 23. Bxf6 Rxc4 24. Bxd8 Rxd8) 22. Re3 (22. Qd3 {doesn't offer White much relief either.} Qe8 {with similar play.}) 22... Rxe3 23. Bxe3 Qe8 24. Bb6 {given the game continuation, this appears to simply lose a tempo, although the immediate Bd4 also leaves White with problems.} (24. Bd4 Rd8 25. Rc1 c5 26. Bxf6 (26. Be5 Ng4 27. Qe2 h5) 26... gxf6 27. Rc2 Rd1+ 28. Kg2 Qc6+ 29. Kh3 Rd5 {and Black has a comfortable advantage.}) 24... Qh5 {this clears the e8 square for the rook and pressures the h-file, with the threat of ...Ng4 looming.} 25. Bd4 Re8 {in comparison with the previous variation, Black's queen is on h5 and the rook on e8, a significant improvement. Black again has the potential threat of ...Re4 and White has no good way of untangling the queen and bishop in the center.} 26. Rf1 {this precipitates the loss, as both the game continuation and Houdini show, although White was in difficulties anyway.} (26. Qd3 Rd8 27. Qc2 (27. Qc4 Ng4) 27... Ng4 28. Qe2 (28. h4 $2 c5 29. Bc3 c4 30. Nd4 Bc5 31. Qd1 Qg6 32. Qe2 Bxd4+) 28... c5 29. Bc3 c4 30. Nd4 Re8 $19) (26. Be5 Nd7 $17) 26... Ng4 27. Qc2 c5 {a surprisingly powerful move. Black once again can exploit the pinning theme against the bishop and queen.} 28. Nxc5 (28. Be5 c4 29. Nd4 Bc5) (28. Bc3 Bxc3 29. bxc3 Ne3) 28... Rc8 { now White cannot parry the threat of ...b6} 29. Rd1 Bxc5 30. Bxc5 h6 {negating White's potential back-rank threat.} 31. Kh1 {and White resigned, with Black's most obvious win coming after ...Nf2+} 0-1