31 December 2024

Annotated Game #298: No pawn lever, no plan (part 2)

This next tournament game is another excellent illustration of the saying "no pawn lever, no plan" - unfortunately not the first time; see the first part here. As White, I did in fact have several good pawn breaks available - including the thematic Colle/Stonewall e3-e4 in the center - but did not play any of them at the correct time. After that, my position deteriorated rapidly under pressure until I made a visualization blunder. That's pretty much the story.

 

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1.d4 Nf6 2.e3 d5 3.Bd3 e6 4.Nd2 choosing to prevent an early ...Ne4. c5 5.c3 Nc6 6.f4 reaching the Stonewall formation. c4 7.Bc2 b5 a popular move in the database, as Black quickly expands on the queenside, a logical follow-up to the previous move. However, it should not pose White any problems. 8.Ngf3 simple development in response. Be7 9.0-0 9.e4 is the key idea, reacting with the e-pawn lever after Black closes the center; it is already possible to execute. dxe4 10.Nxe4= 9...Bd7?! putting the bishop on the long diagonal seems more logical. 10.Ne5 a5 my opponent is nothing if not consistent with pursuing queenside expansion plans. 11.Qf3± long thought about a plan here. This is a good move, but is not followed up properly. g6 guarding against the f4-f5 advance. 12.Qh3 not a bad move, but White has multiple pawn breaks available that would cause more problems for Black. 12.e4 proceeds with White's play in the center. 12.a4!? disrupts Black's queenside plans. b4 now allows the tactic 13.Ndxc4! as the Nc6 is under-protected after the recapture on c4. 12...b4 13.g4 an indication that I do not understand the needs of the position. 13.e4! 13...a4= now the queenside pressure is more meaningful (and concerning). 14.g5 the wrong pawn advance. It simply drives the knight away - to a decent square - and does not help with breaking through Black's defenses. 14.f5= 14...Nh5 the knight is well-placed here to interfere with White's kingside plans, and can redeploy via g7 when needed. 15.e4? played too late and now tactically flawed. 15.Ndf3 15...Nxe5 now either recapture is bad for White. 16.dxe5 16.fxe5 0-0-+ and Black's king is safe, while White's advanced pawn shield and/or the queenside is about to collapse under pressure, with loss of material. One sample continuation: 17.Nf3 b3 18.Bd1 a3 19.axb3 axb2 20.Bxb2 Rxa1 21.Bxa1 cxb3 22.Bxb3 dxe4 23.Nd2 Bc6 24.Bc2 e3 25.Qxe3 Bxg5 26.Qe1 Bxd2 27.Qxd2 Qh4 16...Qb6+-+ 17.Kh1 Ng7 18.Re1 I spotted the possibility of the queen penetrating on f2, but failed to calculate the consequences correctly. Bc6 19.Nf3 Qf2 this is actually not critical, and I recognized that, but then screwed up the calculation under pressure. 19...Bc5-+ 20.Nd4?? this was a failure of visualization; the knight was the only piece protecting the Re1 and I did not change that piece status mentally, only focusing on the Bc2 and the possibility of Be3 trapping the queen. This is also an example of mental assumptions, specifically that normally the rooks are connected and therefore protected on the back rank. 20.Qg3 and things are still bad, but Black's queen has nothing better to do than retreat, as an exchange would release most of the pressure. Qxg3? 21.hxg3 20...Qxe1+ 0–1
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ChessAdmin-Class B-0–1D00
Posted by ChessAdmin at 4:49 PM 0 comments

30 December 2024

Annotated Game #297: Opening evolution

The previous tournament I felt I had played rather poorly at the time, but I felt better about my performance at the board following the last series of games analysis; even the opening blunder in game 3 yielded something useful. I also scored reasonably well, and better than statistically expected. This next tournament saw more or less the reverse, although in this first-round game I do well to remember and apply some lessons from the previous Exchange Caro-Kann game, including following through with the ...Bf5 idea. In keeping with the recent post on pawn sacrifices, the 15...b5!? idea is worth highlighting.


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1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 the Caro-Kann Exchange Variation. Nc6 5.c3 Nf6 6.Bf4 g6 7.Nd2 although this is the third most-played move in the database, it is the first time I have seen it. Bf5 I saw no reason to not proceed with the main idea of the ...g6 variation. 7...Nh5 is the engine move, and a common idea in this structure, but has relatively few games in the database as tests. 8.Qe2 Bxd3 White has passed up the chance to exchange and inflict some pawn structure damage on Black - which, however, would have some dynamic compensation. I therefore correctly exchange light-squared bishops. White's minor piece is still stronger and therefore a good target, while Black's is definitely "bad", constrained by the pawns on d5 and g6. 9.Qxd3 Nh5 9...e6 it's also fine to develop straightforwardly, with the bishop potentially going to d6. 10.Ne2 Bg7 10...Nxf4 it's better to simply carry out the threat immediately. Black's unopposed dark-square bishop may be useful in the endgame. 11.Nf3 0-0 12.0-0 Nxf4 now I see nothing better and exchange anyway. 13.Nxf4 e6 a solid approach, solidifying control of d5 and removing the weakness on e7. 14.Rfe1 Qc7 14...Qd6 is a better square for the queen, as the f8-a3 diagonal is more valuable. 15.Ne2 a6 a waiting move, primarily. 15...b5!? is a useful idea in this and similar positions. The point being that 16.Qxb5 Rab8 and White's b-pawn cannot be defended, while the rook penetrates to the 2nd rank. 17.Qa4 Rxb2 18.Rab1 Rfb8 19.Rxb2 Rxb2 16.Ng3 actually a worse square for the knight. Rac8 activating the rook. 17.a4 preventing ...b5, but now the knight can leap into action. Na5 18.Qc2 Nc4 19.Re2 19.b3?! Nd6 with pressure down the c-file. 19...Nd6 improving the knight and opening up the c-file for the heavy pieces. 19...b5 is also now possible. 20.axb5 axb5 with now ...Ra8 and ...b4 as follow-up ideas. 20.Ra3 b5 now I actually do find the correct idea. 21.axb5 axb5 threatening ...b4 22.Rb3 preventing the b-pawn advance but abandoning the a-file. Ra8 23.h4 a good idea, to start some counterplay with threats due to the h-pawn "can opener" idea. Ra1+ I saw nothing better and it is certainly an effective move. 24.Re1 Rxe1+ as usual, exchanging decreases the tension and favors the defending side. 24...Rfa8!-+ also finally getting the other rook into play. 25.Nxe1 Rc8 now the threats are lessened. 25...Ra8 26.Qd3 pressuring the b5 pawn. Qc4?! again with the trading down. 26...Rb8 would be more effective, overprotecting the pawn and allowing a follow-up with ...Nc4. 27.Qxc4 bxc4 28.Rb6 now White's problems are largely solved, with a more active rook screening his weak b-pawn. Nf5 this simplifies down to a draw quickly. 28...Bf8!? 29.Nxf5 gxf5 forced, otherwise d5 becomes weak. 30.f4 Bf6 31.g3 Kg7 32.Nf3 Rc7 and we both recognize that no progress can be made. ½–½
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Class B-ChessAdmin-½–½B13
Posted by ChessAdmin at 8:41 PM 0 comments

29 December 2024

Mastery Concept: Pawn sacrifices for piece activity

This is another in the periodic series of Mastery Concept posts, which highlight chess ideas at the Master level which are often ignored (or even unknown) at the Class player level. Typically these come from seeing a recurring theme in a recent series of game analysis, one which is echoed in other chess study materials that I'm using. Today's theme is the concept of choosing to sacrifice a pawn, in return for compensation in the form of piece activity.

One of my personal chess weaknesses has been an overly materialistic assessment of situations, which means I have inappropriately valued material over positional factors. This is a common phenomenon at the Class level. For example, players may hang onto a pawn for dear life, even if defending it cramps their position and gives their opponent a winning initiative, rather than deliberately jettisoning the pawn in return for freer and more active play for their pieces.

Another situation illustrated below is ignoring candidate moves that "lose" a pawn, without taking into consideration the benefits for the player's overall game. In some cases, these can even be very temporary sacrifices, or the pawn itself is "poisoned" due to a tactical response, which means ignoring the possibility - consciously or unconsciously - is a definite blind spot in the thinking process.

Finally, I'll make the observation that none of these pawn sacrifices lead to forced wins; these are not puzzles to be solved and the game is over. Rather, they are superior to other candidate moves, even if they only end up in a level position. This fact may also contribute to a Class player not considering them, if there is no obvious win or advantage that results.

Firstly from my own play, here are some clear examples. They are followed by a few master-level ones; if you go through any collections of annotated master games, you should be able to easily find more.

Annotated Game #296: The recurring idea of c4-c5, opening diagonals and the c4 square for pieces. I eventually play it, but under less favorable circumstances than I could have earlier in the game - this is also a recurring theme.

Annotated Game #295: The f-pawn sacrifice I should have played comes early enough to be considered a gambit, but the principle is the same - in return for the pawn, the rest of my pieces gain activity that provides full compensation.

Annotated Game #293: The move 15 possibility of playing c4 opens up activity for the dark-square bishop and queen, and works due to tactics (the hanging b-pawn is poisoned) that I should have further considered.

Annotated Game #291: Here's another freeing c4-c5 pawn sac idea on move 15.

Annotated Game #272: This shows the power of the e3-e4 pawn lever in Colle / Stonewall type positions, even when it is a (temporary) sacrifice.

A few Master-level examples, including from analysis:


From Bologan's Caro-Kann: A Modern Repertoire for Black (New In Chess, 2018) - analysis, King's Indian Attack; the d-pawn is given up by Black for piece activity, and it is also instructive to look at what happens if White tries to seize the d-pawn earlier.

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1.e4 c6 2.d3 d5 3.Nd2 e5 4.Ngf3 Bd6 5.d4 exd4 6.exd5 Nf6 7.dxc6 Nxc6 8.Nb3 0-0 9.Be2 Qb6 10.Nbxd4 Bc5 11.c3 Bg4 12.0-0 Rad8 13.Qb3 Bxd4 14.cxd4 Qxb3 15.axb3 Rfe8 16.Bd1 a6
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Enter New Game--

From John Nunn's Best Games 1985-1993, Batsford Chess Library, 1995; games 20 (move 19) and 22 (sequence starting with move 21)

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1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 d6 5.Bxc6+ bxc6 6.d4 exd4 7.Qxd4 Nf6 8.0-0 Be7 9.Nc3 0-0 10.Re1 Bg4 11.Qd3 Bxf3 12.Qxf3 Nd7 13.b3 Bf6 14.Bb2 Re8 15.Rad1 Re6 16.Qh3 Qe8 17.f4 Rd8 18.Qe3 Nb6 19.e5 dxe5 20.f5 Rxd1 21.Rxd1 Re7 22.Ne4 Rd7 23.Nxf6+ gxf6 24.Re1 Qd8 25.Qe4 Nd5 26.Qg4+ Kh8 27.Bc1 Qf8 28.c4 Nb4 29.Qh4 Qd6 30.Qh6 Rd8 31.h3 c5 32.Re4 Rg8 33.Qxh7+ 1–0
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Nunn,J2625Portisch,L26351–0C738

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1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Nf3 e5 7.0-0 Nc6 8.d5 Ne7 9.Ne1 Nd7 10.f3 f5 11.g4 Kh8 12.Ng2 a5 13.h4 Nc5 14.Be3 Ng8 15.Rb1 Bd7 16.b3 b6 17.a3 a4 18.b4 Nb3 19.Nb5 Nf6 20.exf5 gxf5 21.Nc3 e4 22.g5 Nh5 23.fxe4 f4 24.Bd2 Nxd2 25.Qxd2 Qe8 26.Bf3 Ng3 27.Rfe1 Be5 28.Ne2 Nxe4 29.Bxe4 f3 30.Nef4 fxg2 31.Nxg2 Qh5 32.Qd3 Bg4 33.Re3 Qf7 34.Qd2 Qg7 35.Rd3 Rf7 36.Re1 Raf8 37.Ne3 Rf4 38.Ng2 R4f7 39.Ne3 Bh5 40.Rf1 Rxf1+ 41.Nxf1 Rf4 42.Qe1 Bd4+ 43.Kg2 Qe5 44.Ng3 Bg4 45.b5 Bf2 46.Qxf2 Bh3+ 0–1
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Pinter,J2535Nunn,J24350–1E9912

From Journey to NM - Lightning Strikes Back blog, the round 4 game; technically this isn't master-level play, but it's close and White's sacrifice of the d-pawn for piece activity and an attack is an excellent example.

Don't Just Memorize, Understand! Two Key Moves in the London System - the full video (from Dr. Can's Chess Clinic) is worth watching for its principles, also containing a great pawn sacrifice idea in the central variation presented against the London System, which has a concrete tactical reason behind it.
Posted by ChessAdmin at 2:05 PM 0 comments

28 December 2024

Annotated Game #296: Activity should win

One of the factors that distinguishes master-level play from typical Class-level is the value placed on piece activity, rather than static factors. This final-round tournament game is an excellent illustration of the superiority of this approach, including sacrificial ideas even when not leading to a forced win; this will also be the subject of an upcoming Mastery Concept post.

Here a common theme that I've identified, unnecessarily holding back the e4 pawn break in a Colle System-type position, also appears. At least I eventually play that, and the interesting recurring idea of a sacrificial c4-c5 pawn break, although later than I should have in both cases. And once again opposite-colored bishops are the deciding factor, in the end.


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1.d4 Nf6 2.e3 e6 3.Bd3 c5 4.c3 4.Nf3 This is the way to go to transpose to the Colle-Zukertort. b6 5.0-0 Bb7 6.Nbd2 Be7 7.b3 4...b6 5.Nf3 This is now a Colle System. 5.f4 would keep the Stonewall Attack going, although Black now has the option of trading bishops with ...Ba6!? 5...Bb7 6.Nbd2 Be7 7.0-0 0-0 8.b3 hesitating before committing to the center. 8.e4 is the critical idea in the Colle System. 8.Re1!? would prepare the e-pawn advance further. 8...d6 Given my opponent's opening setup, I had expected he would refrain from ...d5, but I had wanted to confirm his intentions before moving a central pawn. 9.Bb2= Nbd7 10.c4 this is the second most played move in the position, according to the database, and is essentially a tempo loss by the c-pawn. This is not critical; however, it does mean that I can't recapture with a pawn on d4 after the later e4 push, which is important. 10.e4 this remains the key idea in the Colle setup, followed by Qe2. 10...Re8 11.Qc2 developing the queen to a useful square to clear the first rank and form a battery on the b1-h7 diagonal. Qc7 12.Rfe1 h6 removing the threat from the battery on the diagonal. 13.e4 a little late in coming, but still good to play. cxd4 best, as other moves give up more space to White. 14.Nxd4 Nc5 15.Nb5 Qd7 now I had a long think, since there was not an obvious plan to pursue. 16.f3?! solid but inflexible, and opening the a7-g1 diagonal is an additional weakness. 16.Bf1 this removes the bishop from the knight's attack and keeps it out of the way of the other pieces. 16.Rad1 activating the rook would also be logical. 16...a6 17.Nc3 17.Nd4!? I did not even consider, but it looks marginally more active. 17...Rac8 Black has an easier time finding a middlegame plan, simply getting heavy pieces more centralized then pushing pawns. 18.Nf1 looking to improve my worst piece, although it's still better to retreat the bishop. d5 19.exd5 exd5?! not a terrible move in objective terms,, but now my light-square bishop has more life in it, and I am able to take the initiative. 19...Nxd3 20.Qxd3 exd5 21.cxd5 20.Bf5 Ne6= I confess I missed the backwards knight move here, being too excited by the skewer on the diagonal. 21.Rad1 the logical follow-up, adding another pin against the queen. Bc5+ 22.Kh1 d4 I underestimated the strength of this move. The position is still equal, but the rest of the game revolves around the struggle over the d-pawn. 23.Ng3 23.Na4!? I also considered, but eventually decided it was better to reactivate the other knight. 23.a3!? is also a consideration, taking away the b4 square from the Bc5. 23...g6 24.Nce4 while this offers up some chances for Black to go astray, it essentially simplifies the game. Some other possibilities involved exchanging on e6. 24.Bxe6 Rxe6 25.Rxe6 Qxe6 26.Nce2 I had not calculated this far and did not see this would be an effective move. 24...Nxe4 25.Nxe4 Bxe4 26.Bxe4 Bb4 illustrating how an earlier a2-a3 would have been useful; the bishop moves with tempo. 27.Rf1 f5 28.Bd3 not a bad square for the bishop, with some ideas of sacrificing on the kingside in the future. Rcd8 29.a3 played after a good deal of thought. The engine approves. Bf8 30.Rfe1 also played after some thought, but this is the "safe" follow-up. 30.c5 is the active idea I play later on. The pawn is temporarily sacrificed for piece activity, including access to the c4 square and the now-open a6-f1 diagonal. bxc5 31.Bc1 another key idea in the position, to contest f4, with the ideas of g2-g4, Qc4 or Bxa6 to follow up. 31.Bxa6 immediately is also possible. 30...Bg7 31.b4 taking the c5 square away from the knight. Nf4 32.g3 played after a long think. In calculating the variations I was concerned about back-rank threats. It is also forcing in nature. 32.Bc1 looks like a more solid choice, leading to further exchanges. 32...Nh3?! this was surprising and I thought must be bad, but unfortunately I did not find the best solution. 32...Nxd3 33.Qxd3 Re6 34.Rxe6 Qxe6= 33.Qg2 good enough for equality, but there were better options. 33.Kg2 Ng5 33...f4? is what I was concerned about, as the Nh3 is protected and the king's pawn shield attacked, but 34.Bxg6 fxg3 35.hxg3 Ng5 36.Qf5!+- forces exchanges into what should be a winning endgame. 34.h4 Nf7 35.c5± 33.c5!? this idea works again. 33...Ng5 34.h4 Nf7 35.Qf2 this just loses a tempo, since the queen has to go to f1 shortly. 35.Qf1 35.f4!? I considered but didn't like giving up the e4 square. 35...Ne5 36.Kg2?! 36.Bf1 and d3? is a mistake due to 37.Bxe5 Bxe5 38.Rxd3+- 36...Qc6 36...Nxd3 would seem to be a more consistent follow-up, taking away the best blockader of the d-pawn, but my opponent apparently is more interested in using the knight for a kingside attack. 37.Rxd3 Rxe1 38.Qxe1 g5 37.Qf1 defending c4 again Ng4 unexpected and safe due to the pin on the f3 pawn, but not actually threatening. 38.Bc1 played after some thought, the correct idea and essentially forced. The obvious threat is the fork on e3. Ne3+ 39.Bxe3 dxe3 now under pressure, I became too concerned about physically blockading the advanced pawn. 40.Qe2?! this unnecessarily cramps White. 40.c5= here's this idea again. With more active pieces come compensation in the form of tactics. For example bxc5 41.Rxe3 Rxe3 42.Bc4+ Kh7 43.Rxd8= and if cxb4? 44.Bg8+!+- 40...Bc3! 41.Rg1 Qf6?! My opponent clearly felt that he was squeezing me to death, but here I finally buckle down and play the freeing move 41...Bd2 42.c5!= bxc5 43.bxc5 Bd2 44.Rb1 now the active rook on the b-file makes a big difference, so I prioritize that over capturing the a6 pawn, although that also works. Qc3 45.Bc4+ Kh8 I was unsure of what was best in this open position and was in the sudden death time control, so just chose to capture material and try to hold onto my a-pawn afterwards. Continuing with active play is better. 46.Bxa6 46.c6!? and if Rc8 47.Bxa6 and the c-pawn is tactically defended, due to the skewer on the a4-e8 diagonal. 46.h5!? gxh5?! 47.Rh1 46.Bf7 46...Qxc5 47.a4 47.Rb7!? I felt was too risky, with the e-pawn so advanced, but the engine demonstrates that it's a draw, given mutually exposed kings. For example Qxa3 48.Qc4 Re7 49.Rxe7 Qxe7 50.Rb1= the e-pawn will be captured if it advances, due to the reverse battery on the a6-f1 diagonal. 47...Bb4 48.Rgd1 finally getting the rook back into play. Rd2 49.Rxd2 Bxd2 now time pressure really starts to be felt 50.Rb7 f4? my opponent however by this point has even less time on the clock. 51.g4 I saw this would be safe. 51.Qd3! this correct but risky move was beyond my ability to calculate at the time. e2 52.Qxg6+- wins, although it's scary. Qf2+ 53.Kxf2 e1Q+ 54.Kg2 Qxg3+ 55.Qxg3 fxg3 56.Kxg3+- with a won endgame. 51...Bc1 best guess here, due to time scramble handwriting 52.Bb5 52.Qa2 the engine says is winning, but again risky and sacrificial. e2 53.Rh7+ Kxh7 54.Qf7+ Kh8 55.Qxe8++- 52...Rd8 53.Rd7 Rxd7 54.Bxd7 Qd4 with the exchanges and opposite-colored bishops, now a draw seems inevitable. 55.Bb5 Bd2 56.Bd3 g5 57.h5 Qxa4 while I had missed in the time scramble that my opponent could pick up the pawn, as we'll soon see it does not matter, due to the blockade of e2 on the light squares. 58.Bc4 Qc2 59.Bd3 Qc3 60.Bb5 Kg7 61.Qc4 forcing the issue, as Black's king has no screening from checks. Qxc4 62.Bxc4 Kf6 63.Kf1 Ke5 64.Ke2 Kd4 65.Ba6 I offered a draw here and my opponent declined, although he had just seconds on his clock to my minute or so; there was a 5-second delay. After my bishop bounced back and forth on the diagonal several more times, I offered another draw and he accepted. This was all a bit strange for me, since the position was obviously blocked and he was the only one who could lose (on time). ½–½
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ChessAdmin--½–½A47
Posted by ChessAdmin at 12:18 PM 0 comments

27 December 2024

Annotated Game #295: No need to panic

Panic in the opening is never good, as this next tournament game miniature shows. Because there is more to it than just a one-move blunder (although not much more), I think it is worth publishing, as it highlights a useful gambit for Stonewall players to know, along with the unnecessarily deleterious psychological effects of panic. The unexpectedness of receiving two Black pairings in a row I believe contributed to my discombobulation, although that is not an excuse.


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1.d4 d5 2.c4 c6 3.Nf3 e6 The move-order for a Slav Stonewall, although Black is not committed necessarily to that. 4.e3 Bd6 4...f5 allows the provocative 5.g4!? 5.Qc2 f5 now we have the Stonewall formation. 6.b3 Qe7 this move-order is not necessary to prevent Ba3, a common idea for White, due to tactics. However, the queen will probably go to e7 anyway. 6...Nf6 7.Ba3? 7.Bd3 0-0 8.cxd5 and either recapture is fine exd5 9.Bxf5 Bxf5 10.Qxf5 Ne4 11.Qe6+ Kh8 12.Nbd2 Rf6= and White's queen cannot stop getting kicked around by Black's pieces. 7...Bxa3 8.Nxa3 Qa5+-+ 7.Bd3 Nf6 8.cxd5 here I panicked over the loss of a pawn, not recognizing that this is actually a standard Dutch gambit; see also the above variation with Bd3. cxd5?? saves the pawn, but loses the bishop. An example of failing to consider tactics in the opening phase. 8...exd5! 9.Bxf5 Bxf5 10.Qxf5 0-0= follwed by ...Ne4; this is a completely legitimate gambit. 9.Qxc8+ 1–0
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Expert-ChessAdmin-1–0D30
Posted by ChessAdmin at 6:29 PM 0 comments

26 December 2024

Annotated Game #294: What the Caro-Kann is good for

This second-round tournament game shows off what the Caro-Kann is traditionally good for - a solid, semi-open game for Black that allows you to punish an overly-aggressive White player. This is exactly what happens during the game, featuring the Exchange Variation, although I over-complicate the final phase and miss forcing the win.


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1.e4 c6 2.d4 d5 3.exd5 cxd5 4.Bd3 Nc6 5.c3 Nf6 6.Bf4 g6 7.Nf3 Bg7 7...Bf5 is the main idea behind the ...g6 variation, although it is not obligatory. 8.Qc2 this is not a logical place for the queen in the long term, with the diagonal blocked, although it does prevent ...Bf5. Nh5= another key idea in this variation, chasing the Bf4. 9.Be3 Qc7 10.Qb3 Nf4 although the knight has moved multiple times, each time White is also forced to lose a tempo retreating, and the knight is at a better square. At this point, it is now best for White to exchange off the advanced knight. 11.Bxf4 Qxf4 12.Nbd2 the knight would be best on c3, but of course that is occupied. Qd6 with d5 pressured, this simple retreat is best. 13.0-0 0-0 the game is now very even. 14.Qc2 not very productive, going back to the blocked diagonal. Bd7 solid development. 14...Rb8 followed by a minority attack would be a good plan. 15.a3 b5 15.Rfe1 Rfc8 activating the rook and choosing the queenside for making future efforts. 16.Qb3 e6 again, solid play. 16...Rab8!? 17.a4 clearly interested in preventing the advance of my queenside pawns. a5 this is too optimistic. Now that the White a-pawn is advanced, I will not be expanding successfully on the queenside. There are several other calm possibilities. 17...Rc7 17...a6 17...Rab8 18.Qd1 Qc7 18...e5!? is now a possibility, but I had no particular desire to play an IQP position. 19.dxe5 Nxe5 20.Nxe5 Bxe5 21.g3 h5 22.Bf1= 19.Nf1 Re8 more of a waiting move. Black has no real breakthroughs available, so playing neutrally is actually a good strategy. 20.Ne3 Rab8 21.Ng4 Re7 22.Nge5 White attempts to get something going on the kingside. Nxe5 23.Nxe5 Bc6 24.Qf3 White is slightly overpressing here, but I continued with the more solid option, after some thought. Bxe5 24...f6!? 25.Ng4 Rf8 shuts the center and kingside threats down thoroughly. 25.Rxe5 the position is still completely even, but White can now think about attempting something on the h-file, combined with a bishop sac. Kg7 26.Qg4 b5 I thought for a while here and found the correct, active reaction. 27.axb5 White was very low on time here. Bxb5 28.Bxb5 Rxb5 29.Qe2? 29.Re2 29...Qb6-+ activity is again key, pressing against White's queenside weakness, while there is also a back rank problem for him. 29...Qb8 would be even better, allowing Black to triple up on the b-file with Alekhine's gun. 30.Ra2 Rb7 Black is now winning. 31.c4 an active defense that allows me to make a bad choice. dxc4 played after some thought, with some time pressure on my side. This should still be enough to win. 31...Rxb2! simplest is best. 32.Rxb2 Qxb2-+ with a continuation likely such as 33.h3 needed luft for the king 33.Qxb2 Rxb2 34.Kf1 a4 and the outside passed pawn decides it. 33...Qxe2 34.Rxe2 dxc4 32.Qxc4 Rb4 still maintaining threats to the b- and d-pawns. 32...Rc7 I hallucinated that this would not work, although the line was admittedly difficult to visualize. 33.Rc5 Rcxc5 34.dxc5 Rxc5 35.Qd4+ Kg8 36.Qd2 Qb4-+ 33.Qc3 Rc7? played one move too late; I missed White's next, as well. 33...Rxb2! simplest is again best. 34.Rxb2 Qxb2 35.Qxb2 Rxb2 and the back-rank mate threat allows Black to win. 36.g3 a4 37.Ra5 Rb4-+ 34.Rc5= Rd7 35.h3 Rbxd4 36.Ra4 now White eschews simplicity, but I miss the chance to complicate. 36.Raxa5 36...Qd6 36...Qxc5!? 37.Qxc5 Rxa4 38.Qe5+ Kf8 and Black has whatever winning chances are in the position. 37.Rxd4 Qxd4 38.Rxa5 Qxc3 39.bxc3 Rd1+ 40.Kh2 Rd2 41.Kg1 Rd1+ ½–½
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WhiteEloWBlackEloBResECORnd
Class A-ChessAdmin-½–½B13
Posted by ChessAdmin at 8:12 AM 0 comments

25 December 2024

FT article: Chess champion Magnus Carlsen leads gambit to capture ancient game

As part of the Financial Times' periodic coverage of chess, it recently published "Chess champion Magnus Carlsen leads gambit to capture ancient game". The subheading is "Norwegian fronts F1-inspired Freestyle Chess league that aims to exploit 'massive untapped potential'"

While other chess-oriented sites may provide more details, the FT.com article is actually pretty in-depth. Since the FT has no particular stake in the new chess league, it will probably have more balanced coverage in the future of the business aspects; currently, beyond the top chess stars announced, it's mostly hype. "Freestyle Chess" seems to be the latest attempt to sex up the variant Chess 960 aka Fischer Random.

It remains to be seen if the unprecedented level of chess content curently being demanded in video format, including event streaming, will translate well to the variant, which by definition will have a smaller interested audience to draw from. It's also worth noting that the Formula One circuit has largely been about prestige rather than profits, with wealthy sponsoring manufacturers also using it as a marketing mechanism for their non-F1 products. The same model won't really translate for this new league, although the perceived top-quality image for F1 is clearly what they are going for.

Posted by ChessAdmin at 5:57 PM 0 comments

24 December 2024

Annotated Game #293: Follow the needs of the position

This next first-round tournament game is instructive for how both sides fail to truly follow the needs of the position. As White, I fail to exchange off the Black knight on e4 early on in the best way, which leads to major cramping and a winning advantage for my opponent. However, later on he exchanges off his double rooks, which were dominating the position, and allows me to escape into an opposite-colored bishop endgame. Both were mis-evaluations of the position, ultimately, and what was required in it.


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1.d4 d5 2.e3 Nf6 3.Bd3 e6 4.f4 the Stonewall Attack. 4.Nd2 is possible, if White is worried about ...Ne4. 4...c5 5.c3 the standard reaction to ...c5. Bd6 6.Nf3 Nc6 7.0-0 0-0 8.Ne5 key occupation of the e5 outpost, also to clear the f3 square for other pieces. Ne4 with this, Black signals he will be going for a double Stonewall. 9.Nd2 9.Bxe4!? exchanging immediately is another way to play, recognizing that the light-square bishop will no longer have its usual attacking purpose. dxe4 10.Nd2 f5 11.Ndc4!?= 9...f5 10.Ndf3?! 10.Nxe4 is more consistent with the needs of the position. White will need to trade on e4 at some point and if the bishop capture there is delayed, the knight capture then makes the most sense. fxe4 11.Be2= 10...Bd7 developing rather than increasing central pressure. 11.Bd2?! this gives Black too much leeway in the center and is too slow. 11.c4!? looks messy, but is more active and leverages the presence of the Bd3. 11...Nxe5 12.Nxe5 Bxe5 13.dxe5 Qb6 after the central exchanges, White is left with less active pieces and Black can freely develop with additional pressure. 14.Bxe4 late in coming. dxe4 15.Qb3 naturally hoping for an exchange, to help ease the pressure on my position. 15.c4!? playing for activity, as otherwise the Bd2 is worthless. I recall considering the move, but did not look at it hard enough. Qxb2? does not work due to 16.Ba5 Qa3 17.Qxd7 Qxa5 18.Qxe6+± 15...c4 this is a good way of restricting c3-c4, but the queen exchange is still a net benefit for me. 16.Qxb6 16.Qxc4? Bb5 16...axb6 17.b3?! Be1-h4 is a better idea for getting the bishop active. Bb5 18.b4? the wrong pawn advance. 18.a4 Bc6 19.Rfb1 18...Rfd8-+ 19.Rf2 this finally gets the rook playing, although to a small degree. Rd3 Black has a straightforward plan, which is to exploit his space advantage and the open d-file and half-open a-file. His rooks are mobile, which is a large part of the advantage. 20.Kf1 Ra3 an unusual bind on the 3rd rank. While Black is still considerably winning, this starts to restrict his pieces as well, however. 21.Re2 Ba4 my opponent correctly deduces he needs to bring in the bishop as well. 22.Be1 Be8 evidently seeing less progress on the queenside for it, he prepares to shift the bishop to the kingside. 23.Kf2 h6 a correct waiting move, which also prepares ...g5. My passive defense cannot reasonably be improved upon, while Black can improve his position. 24.Rc2 g5 25.g3 Ra8?! 26.Rb2? still concentrating on more passive defense, although with the next move played in mind. 26.a4! again, the idea of a freeing pawn sacrifice. Bxa4 27.b5! Now the pin on the a-file makes things very awkward for Black. Ra5 28.Rca2 Bxb5 29.Rxa5 bxa5 30.Rxa5 Bc6 Black is a pawn up, but White's chances are much better with the active rook. 26...Kf7?! centralizing the king is a good idea, but this allows 27.b5 finally playing somewhat actively, in this case to restrict Black's bishop, although the pawn is exposed here. Rd5 28.Rab1 Ra5 29.Kg1?! this was more the result of hallucinatory threats on my 2nd rank. 29.Rc2 Bxb5 30.Rb4 is at least somewhat more active. 29...Raxb5?! this allows me to exchange off a pair of rooks, which is normally better for the defender who is under pressure. 30.Rxb5 Rxb5?! and now we reach an opposite-colored bishop endgame, which is entirely drawable. 30...Bxb5 31.Rb4?! better to immediately exchange. 31.Rxb5 Bxb5= 31...Rxb4 thankfully, my opponent continues down the same road. 31...Ra5 32.Rxb6 Rxa2 32...Ra7 33.Rb4 Bc6 34.Rb2 leaves Black in more active shape, although with the opposite-colored bishops it's probably still drawn. 33.Rxb7+ was what we both saw, I believe, which is completely drawn. 32.cxb4= Ke7 33.Kf2 Ba4 34.Ke2 Kf7 35.Kd2 Kg6 my opponent apparently still thinks he has chances to break through on the kingside. 36.h3 Kf7 36...gxf4 37.gxf4 and the Be1 covers the h4 square, preventing the Black king's entry. 37.Kc3 b5 this essentially admits that the game is drawn. 38.Kd2 gxf4 39.gxf4 Ke7 40.Bh4+ still drawn, but now I get to have some more active fun with my piece first. Kd7 41.Bf6 h5 42.h4 Kc6 43.Be7 Kd5 ½–½
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WhiteEloWBlackEloBResECORnd
ChessAdmin-Expert-½–½D00
Posted by ChessAdmin at 11:29 AM 0 comments

Training quote of the day #51: John Nunn

  


From John Nunn's Best Games 1985-1993, Batsford Chess Library, 1995:

It is curious that I have always played best when the result didn't really matter; if there is some additional stress, such as often occurs in the last round of an Olympiad, the result has usually been disastrous. I know some people who operate the reverse way, and achieve their best results when put under pressure. I think the difference is in the level of stress which a normal game of chess engenders in an individual. Some stress is essential for a good performance, and in my case I find a normal game creates just the right level of adrenalin for optimal play. When other factors are added, the balance shifts and my play deteriorates.

Posted by ChessAdmin at 9:11 AM 0 comments

23 December 2024

Annotated Game #292: Play like a Class player

This final-round tournament game has an all-too-familiar trajectory: emerging well from the opening - which I had learned from previous failure - and then beginning to make sub-optimal moves in the early middlegame, which lead to an increasingly difficult and eventually lost position. Here the common theme I spotted was play that is stereotypical of a Class player: waiting to activate the rooks, passive rather than active defense, and rushing to exchange pieces. On the positive side, after identifying these characteristics from recent live games, instead of being just words on a page the lessons will hopefully stick.


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1.e4 c6 2.d4 d5 3.f3 the Fantasy variation, which seems to be more popular these days. g6 4.Nc3 Bg7 5.Be3 Qb6 6.Qd2 Qxb2 this temporary pawn grab is key to the opening line, as is returning it at the right moment. 7.Rb1 Qa3 8.Bd3 Nd7 returning the pawn 9.exd5 Ngf6 10.dxc6 bxc6 although the c-pawn is isolated, it holds Black's position together by fighting for d5 and b5, while restricting White's Nc3. 11.Nge2 0-0= 12.Bh6 this plan to exchange the Bg7 is not dangerous and Black can respond in various ways. As is often the case in similar fianchetto positions, the engine's first choice is to exchange immediately, although that leaves a positional hole. The point is that it cannot be exploited by White. Ba6 is also a solid choice, developing Black's last minor piece. 12...Bxh6 13.Qxh6 without a dark-square bishop or a knight able to pair with the queen, the dark-square weaknesses are not exploitable. Ba6 14.Rb3 Qa5 15.Bxa6 Qxa6= 13.Bxg7 Kxg7 14.Bxa6 White's strategy seems to be focused just on exchanging pieces at this point. This gives the queen a good square. Qxa6 the engine even evaluates Black as slightly better. The queen is on an effective diagonal and useful file. Meanwhile Black has no real weaknesses. 15.0-0 Nb6= The first sign of Class-level play creeps in, leaving the rooks still not playing; activating either of them would have been better. I was more concerned at the time about dominating d5. 15...c5!? is also an interesting idea. The point is that if 16.dxc5 16.d5 Nb6 and now Black has the easier game, simply working to target the d-pawn. 16...Nxc5 Black now has the d- and c-files for excellent play with his rooks. 16.Qg5 a bit of a waste of time, although it does pin the Nf6 temporarily. Rad8 it's good to get the rook in the game. 16...h6 is the simplest method of countering White's last move. 17.Rfe1 lining up against the e-pawn. Qc4 not a bad move, but it is unnecessarily commital, and it would be better to activate the other rook, which is not currently playing. 17...Rfe8 17...Nbd5!? occupying the central post would also be useful. 18.Qa5 my opponent does well to immediately take advantage of the hole left by my previous move on the queenside. Things are now more awkward for me, if still level. Nbd5 18...Nfd5 might be a slightly better version of the idea. In both cases, the a-pawn cannot be snatched by the Qa5 due to the attack on c3. 19.Qa4 forcing the exchange. Qxa4 19...Ne3!? is another, slightly more creative way of handling it. 20.Nxa4 now White's pieces appear more active, although this is partly illusory. Rb8 not a bad move, but unnecessarily complicated in terms of the needs of the position. 20...Rfe8 activates the other rook and supports the e-pawn. 21.Rb3 Rxb3?! here's where I really start losing the thread of the game. Another Class player bad practice is to exchange pieces whenever possible, rather than looking to maintain the tension. 21...Rb4= 22.axb3 White now has two pawn islands to Black's three, and the a-pawn is vulnerable. e6?! here I was too worried about the e-pawn, and not enough about White's knight coming to a powerful outpost. 22...Nd7 23.Nc5± from this point on, it is an uphill battle in the endgame. Ra8 24.Ra1 Ne8 with the idea of getting the knight more into play, but this is too passive. 24...Ne3 25.c4 a5 admitting the pawn is lost, but trying to improve things positionally somewhat. 26.Nb7 a4 hoping for bxa4 is probably the best chance. 25.c4 Ne7?! again with the overly passive choice for defense. 25...Nb4± 26.Kf2+- from here it really is "a matter of technique" for White, who has a major space and structural advantage, with no Black counterplay. Nc7 27.g4 g5 28.Ng3 f6 29.Nce4 Ne8 30.Ke2 Kf7 31.Kd3 Rb8 32.Kc3 Rb7 33.Ra6 Rc7 34.Nc5 Nc8 35.Nge4 it's instructive to see how White continues squeezing Black's weaknesses and does not need to rush things. Ned6 36.Ra2 Nxe4+ 37.fxe4 Ne7 the last major mistake, as now the half-open f-file spells Black's doom. 38.Rf2 Rc8 39.Nd7 Ng8 40.Nxf6 Nxf6 41.e5 Re8 42.Rxf6+ Kg7 43.Kb4 1–0
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WhiteEloWBlackEloBResECORnd
Class C-ChessAdmin-1–0B15
Posted by ChessAdmin at 10:59 AM 0 comments

09 December 2024

Training quote of the day #50: John Nunn

 


From John Nunn's Best Games 1985-1993, Batsford Chess Library, 1995:

I decided that I had still not fully recovered from the overdose of chess at the end of 1988, and that the best cure would be a complete rest from the game. Thus, my 'preparation' for the Rotterdam World Cup was to not look at a chessboard for a month.

The playing conditions and organization at Rotterdam were excellent, and the tournament attracted a good turn-out of spectators.

As I arrived in Holland, I was extremely nervous about how my plan would turn out, but in fact it succeeded beyond my expectations. I felt enthusiastic about playing chess for the first time in many months and I had plenty of energy for the games. Fortunately, most of my opponents challenged me in openings with which I was very familiar, and after six games I had scored five draws and one win.

Posted by ChessAdmin at 7:38 PM 0 comments
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