20 October 2024

FT article (from How To Spend It) - "Aarti and Sohum Lohia are changing chess, one move at a time"

The latest chess article from the FT in its "How To Spend It" weekend section is entitled "Aarti and Sohum Lohia are changing chess, one move at a time". They're not really changing chess, but it's still interesting to see how Sohum, the talented #2 junior player in the UK, expresses his views on chess and a description of his mother's crusading support of it.

The article touches on some modern scientific points about chess and its calming effect on the mind, as well as the nature of it as a mental sport. Unfortunately it also help perpetuate some of the typical fallacies of chess imagery in popular culture - the first photo in the article shows a somewhat abstract chess board set up properly, while the following ones, showing an antique set, have the board rotated 90 degrees from where it should be (with wrong color squares for the pieces). This includes shots of Sohum playing on it. I expect that was just for show for the journalist (understandable) and perhaps he didn't notice - but then again, especially strong players should really be aware of these things when sitting down at a chessboard.

19 October 2024

Annotated Game #286: Lessons in the Exchange Caro-Kann

With this next game, I revert to my tendency to lose as Black in the first round of a tournament. Under analysis, however, it reveals some useful lessons in the Exchange Caro-Kann, which I think is regaining popularity at the Class level. The trade-offs involved with 6. h3 I had never previously examined, and I think continuing with the response 6...g6 is fully justified, although breaking in the center with 6...e5!? is now a possibility. In the game, I was too shy of playing Bf5 and delayed developing, then find the wrong idea on move 17 for the middlegame and the trend from there is all downhill.


[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "Class A"] [Black "ChessAdmin"] [Result "1-0"] [ECO "B13"] [Annotator "ChessAdmin/Dragon 3.2"] [PlyCount "67"] [GameId "2054700566052891"] {[%evp 0,67,19,38,60,60,55,55,51,34,30,24,23,-38,29,31,37,35,25,24,31,21,49,13,25,26,26,26,23,6,4,-1,9,-1,-12,-16,26,33,31,36,46,35,67,65,70,65,64,72,72,61,68,61,72,74,82,65,82,90,106,104,400,411,409,539,543,546,566,808,801,561]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. h3 {this is the first time I recall facing this line, which eliminates Black's possibility of playing ...Bg4. It's quite common nowadays, though still second to Bf4 in popularity.} g6 (6... e5 $5 {is the direct challenge to White's last move and demonstrates the drawback of not playing Bf4, as e5 is now controlled by Black. This leads to an imbalanced IQP position, however, so one has to be comfortable playing that.} 7. dxe5 Nxe5 8. Qe2 $5 Qe7 {with an awkward position for both sides.}) 7. Nf3 Bg7 {while all right in theory, this move has the worst practical results in the database; despite the open g7 square, a fianchetto may not be the best placement for the bishop.} (7... Bf5) (7... Qc7) 8. O-O O-O (8... Bf5 {this can still be played to Black's benefit here and on subsequent moves.}) 9. Re1 Qc7 {stopping the Bf4 development for White.} 10. Nbd2 Nh5 {this is a common idea, with the knight poised to go to f4.} 11. Nf1 {the knight had no future on d2, so my opponent quickly moves it on.} Nf4 $6 {there was no rush to occupy the f4 square, however, and moving the same piece three times while others (the Bc8) are undeveloped is not principled play.} (11... Bd7) 12. Bxf4 {this exchange validated my last move, however.} (12. Bb1 $16) 12... Qxf4 $11 {despite some missteps in the opening, the middlegame is now balanced.} 13. Ne3 Qd6 {after spending some time here, I correctly evaluated that retreating the queen to its best square was the best move.} 14. Qb3 {this is aimed at preventing my other bishop development, at least for the moment, by targeting b7 and d5 simultaneously.} e6 15. Ng4 a6 {a simple way to tactically protect the b-pawn after the bishop goes to d7, as the White queen would be trapped after taking it.} (15... Bd7 {is fine now, however.} 16. Qxb7 $6 Rfb8 17. Qa6 Rb6 18. Qa3 Qxa3 19. bxa3 Rc8 $17 {despite being a pawn down, Black's pieces are much better coordinated for pressure on the queenside, plus with the two bishops Black's structural and dynamic advantages overcome the material deficit.}) 16. Qd1 Bd7 17. Qd2 f5 $2 {almost the correct f-pawn idea, but this unfortunately forces White into an advantageous position.} (17... f6 $11 {I correctly calculated that the e-pawn would not be a true weakness, and with this move the f-pawn covers e5 and g5, preventing any White attacking ideas.}) 18. Nge5 $16 Nxe5 19. Nxe5 Bxe5 20. Rxe5 {While superficially the position looks defensible, White has all the play in it, and can bring his forces to bear on the kingside. Meanwhile, I cannot get my counterplay on the queenside going effectively.} b5 21. a3 Rfe8 22. Rae1 Qf8 23. Qf4 Qf7 24. R1e3 Rad8 $6 {unnecessary and also causes problems later with defending against queenside penetration.} (24... Qf6 25. h4 Kh8 $16) 25. Rg3 Kg7 26. h4 h5 $2 $18 {again, one square too far, opening up a hole on g5.} (26... h6 $16) 27. Be2 Rh8 28. Rg5 Qf6 29. Re3 Qf7 $2 {this now loses.} (29... Be8 {was necessary. I was too concerned about the White queen penetrating on the dark squares.} 30. Qc7+ Bf7 $16) 30. Reg3 $18 {Bxh5 immediately is also good.} Be8 31. Bxh5 {and the position is cracked open.} Rxh5 32. Rxh5 Kf8 33. Rh8+ Ke7 34. Qh6 {between the advancing h-pawn and all of White's major pieces available to penetrate on Black's bank ranks, the cause is hopeless and I resign.} 1-0

28 September 2024

Article: How Your Brain Detects Patterns Without Conscious Thought

While pattern recognition's role in chess ability is (or should be) well-known, I still think it's somewhat under-emphasized in actual improvement programs. Perhaps that is because it often operates at an unconscious level ("System 1 thinking" or what we can also call "intuition"), rather than as part of our conscious ("System 2") calcuation process. This recent Scientific American article further illustrates the point of how learning actually does take place on an unconscious level:

https://www.scientificamerican.com/article/how-your-brain-detects-patterns-without-conscious-thought/

This may also affect our perceptions of "plateauing" at chess (or any other skill), since the phenomenon described in the article implies that our conscious "library" of patterns will grow more slowly than the unconscious one.

Specific to the role of intuition in chess, I think Carlsen's quote on his thinking process in "How Carlsen Makes Us Feel Better About Chess" is still very relevant.

06 September 2024

Book completed: Trouble Is My Business

 

From the story "Red Wind" in Trouble Is My Business by Raymond Chandler:

We were almost at my door. I jammed the key in and shook the lock around and heaved the door inward. I reached in far enough to switch lights on. She went in past me like a wave. Sandalwood floated on the air, very faint.

I shut the door, threw my hat into a chair and watched her stroll over to a card table on which I had a chess problem set out that I couldn’t solve. Once inside, with the door locked, her panic had left her.

“So you’re a chess player,” she said, in that guarded tone, as if she had come to look at my etchings. I wished she had.

24 August 2024

Calculation is not enough

The following game was included in Attacking Strategies for Club Players by GM Michael Prusikin, which I'm currently working through during lunch hours at work (when I can take them, that is.) While calculation obviously played a large part in this tactical masterpiece, the final winning idea by Black (GM Eduard Gufeld) is something that I certainly never would even have begun to calculate when trying to generate candidate moves. This highlighted the insight that calculation is not enough - one has to first have the necessary ideas in mind, then recognize that the position in front of you may allow them to work. (The related training quote of the day #47 is relevant as well.)

In this case the sequence beginning on move 24, which uses the concepts of clearance and deflection sacrifices, is particularly striking. The necessary move of simply hanging your bishop (move 25) is highly unlikely to occur to anyone employing a "brute force" type of thought process. Understanding that this move will both clear the 8th rank for the queen and divert the protection of the c4 square are both necessary ideas. Clearance sacrifices in particular I think are a sign of mastery, and I expect will be a separate topic in the future.


[Event "URS-ch41 Semifinal"] [Site "Kirovabad"] [Date "1973.06.??"] [Round "?"] [White "Bagirov, Vladimir"] [Black "Gufeld, Eduard"] [Result "0-1"] [ECO "E84"] [PlyCount "64"] [GameId "270424022216"] [EventDate "1973.06.06"] [EventType "tourn"] [EventRounds "15"] [EventCountry "URS"] [SourceTitle "EXT 2009"] [Source "ChessBase"] [SourceDate "2008.11.26"] [SourceVersion "1"] [SourceVersionDate "2008.11.26"] [SourceQuality "1"] 1. d4 g6 2. c4 Bg7 3. Nc3 d6 4. e4 Nf6 5. f3 O-O 6. Be3 Nc6 7. Nge2 Rb8 8. Qd2 a6 9. Bh6 b5 10. h4 e5 11. Bxg7 Kxg7 12. h5 Kh8 13. Nd5 bxc4 14. hxg6 fxg6 15. Qh6 Nh5 16. g4 Rxb2 17. gxh5 g5 18. Rg1 g4 19. O-O-O Rxa2 20. Nef4 exf4 21. Nxf4 Rxf4 22. Qxf4 c3 23. Bc4 Ra3 24. fxg4 Nb4 25. Kb1 Be6 26. Bxe6 Nd3 27. Qf7 Qb8+ 28. Bb3 Rxb3+ 29. Kc2 Nb4+ 30. Kxb3 Nd5+ 31. Kc2 Qb2+ 32. Kd3 Qb5+ 0-1