[Event "Marshall Labor Day Invitational 2024"] [Date "2024.09.02"] [Round "8"] [White "Shlyakhtenko, Robert"] [Black "Griffith, Kyron"] [Result "0-1"] [WhiteElo "2411"] [BlackElo "2382"] [TimeControl "5400+30"] [Annotator "Ostrovskiy, Aleksandr"] [Variant "Standard"] [ECO "D43"] [Opening "Semi-Slav Defense"] [StudyName "NYC Norms Labor Day, Ostrovskiy Annotations"] [ChapterName "Shlyakhtenko, Robert - Griffith, Kyron"] [ChapterURL "https://lichess.org/study/C0CApLYa/urTWdG3T"] [Orientation "white"] { The penultimate round matchup between IMs Robert Shlyakhtenko and Kyron Griffith was poised to be a slugfest not only as a battle between the tournament leaders, but as a battle to secure a coveted GM norm! Kyron was the leader with 5½/7 (requiring 1½/2 for his norm) but after a smooth win over GM Mark Paragua, Robert stood at an undefeated 5/7 and needed to score 2/2 for his norm. } 1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 { The Semi-Slav variation was an interesting choice for Kyron as he was seemingly in a position where a draw would be a reasonable result. Nevertheless the Semi-Slav can lead to very complex lines such as the Botvinnik Variation or the Anti-Moscow Gambit... which of these exciting lines would White choose in his must-win position? } 5. Qd3!? { Robert goes for a sideline, electing to avoid any gambits while defending the c4-pawn. } (5. Bg5 { leads to the aforementioned complicated lines such as after } 5... dxc4 (5... h6 6. Bh4 dxc4 7. e4 g5 8. Bg3 b5 9. Be2 $44 { This is the Anti-Moscow Gambit, where Black has collected a pawn at the cost of structural weaknesses. }) 6. e4 b5 7. e5 h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 $13 { Here is the famous Botvinnik Semi-Slav with wildly complicated lines that have been analyzed exhaustively, sometimes until the 40th move! }) (5. e3 { Another main line when after } 5... Nbd7 6. Qc2 { The Anti-Meran variation. Recently GM Christopher Yoo won a crushing game after } (6. Bd3 dxc4 7. Bxc4 b5 { The Meran Variation } { [%cal Gc8b7,Ga7a6,Gc6c5] }) 6... Bd6 7. g4!? { in the final round of the U.S. Junior Championship to clinch his victory. }) 5... dxc4 6. Qxc4 b5 { The most principled approach from Black is to gain tempi against the wayward queen, just as the basics taught us. } 7. Qd3 a6 { Preparing to challenge White's center with the ... c6-c5 push. } { [%cal Gc6c5] } 8. g4!? { Although I have seen this idea before, I was still surprised to see that it had become firmly established as White's main line in the position! Nevertheless, it is the top choice of the engines. Of course nowadays it is not unusual to see flank pushes of h2-h4 or g2-g4 becoming fashionable in a variety of openings. As Black has mostly been playing with pawns instead of developing in the opening, White finds a radical way to try to create a fight to make use of the dynamic advantage. } (8. e4 { The old move was giving White nothing to play for after } 8... c5 9. dxc5 Bxc5 10. Qxd8+ Kxd8 { There is no inconvenience with the Black king and the minor pieces will develop effortlessly. } { [%cal Gc8b7,Gd8e7,Gb8d7] }) 8... c5 { A flank attack is best met by a strike in the center! Despite the rarity of the 5. Qd3 variation we'll see that Kyron is excellently prepared, and with good reason... } (8... Nxg4 { is the most common, when White can secure long-term compensation. } 9. Rg1 Nf6 10. Bf4 Bb7 11. e4 Nbd7 12. O-O-O { White is controlling the center and Black is finding difficulty developing due to the pressure on the g-file. The following game was an impressive demonstration of White's long term chances: } 12... g6 13. e5 Nd5?! 14. Nxd5 cxd5 { It may seem that Black has profitably closed the position to reduce the danger to his king, but now the b7-bishop is hopelessly passive and there is no break on the c-file. The extra pawn is not felt at all. } 15. Kb1 b4 16. h4 Bc6 17. Ng5 Bb5 18. Qf3 Qe7 19. Bd2 Bxf1 20. Rdxf1 a5 21. h5 Nb6 22. Rc1 h6 23. hxg6 hxg5 24. Bxg5 Qd7 25. Bf6 Rg8 26. g7 Rc8 27. gxf8=Q+ Rxf8 28. b3 Qb7 29. Qd3 Kd7 30. Qb5+ Rc6 31. Rc5 Rc8 32. Rgc1 Rc7 33. Ka1 a4 34. Bd8 { and Black resigned in Xue – Mchedlishvili, Dubai, 2023. }) 9. g5 c4 { Gaining space and establishing a long-term queenside majority. } 10. Qe3 Nd5 11. Nxd5 Qxd5 12. Bg2 Bb4+ (12... Bb7 { This move was played in 2021 against ... Robert! This game was actually played in our first ever NYC Norms Round Robin, and I was present to observe it as well. Robert ended up securing an IM norm in the event on his way to the title, so he certainly has pleasant memories of utilizing the g2-g4 idea before. However it can be inferred that the presence of this singular game in the database allowed Kyron to potentially expect the idea...such is preparation nowadays! } 13. O-O Be7 14. b3 cxb3 15. axb3 O-O 16. Bd2 Qd6 17. Rfc1 Nd7 18. Qf4 Bd5 19. Qxd6 Bxd6 20. Ne1 Bxg2 21. Kxg2 Nb8 22. Nd3 Ra7 23. Ba5 Be7 24. f4 $18 { with positional domination that was converted in Shlyakhtenko – Prilleltensky, New York, 2021. }) 13. Kf1 { It might look strange to give up castling rights but White doesn't want to waste time on trading pieces with Bc1-d2. Instead the king will defend the g2-bishop, and the h1-rook can find activity after a subsequent h2-h4 push. } 13... Bb7 14. h4 Qf5 15. h5 { A multipurpose move that strives to gain space, create weaknesses and activate the h1-rook. } { [%cal Gh5h6,Rh1h4,Rh4f4] } (15. a3 { was played in the infamous 2022 Hangzhou Chinese tournament that allowed Ding Liren to reach the activity threshold necessary to qualify to the Candidates Tournament before ultimately becoming the World Champion! } 15... Bd6 16. h5 Nd7 17. h6 $14 { when White had a slightly better position, but Black held on to draw in Li – Ding, Hangzhou, 2022. }) 15... Nd7 16. h6 { Robert is deeply familiar with the ideas of the position; he still had 1:30 on the clock here! } 16... g6?! $146 { Natural, but White has the long term advantage now on the kingside. In the endgame, the h7-pawn can be a major liability for Black. } (16... Rg8 { was seen in a correspondence game which continued: } 17. a3 Be7 18. Bd2 gxh6 19. Rxh6 { The situation is complex but Black's piece activity handily compensates for any pawn structure defects. } 19... Rd8 20. Rh2 Nb6 $13 { with a draw 12 moves later in Cirulis – Susla, LSS Email, 2023. }) 17. Qf4?! { Robert misevaluates the dynamic situation; it was better to preserve queens on the board as Black's queen can be tactically vulnerable to getting trapped! } (17. Bd2 { This would have been strong. A sample idea is } 17... Be7 18. Rh4! O-O?? (18... Nb6? { [%cal Gb6d5] } 19. d5! Nxd5 20. Qd4 $18 { [%cal Rd4h8,Re2e4] }) 19. d5! Bxd5 (19... Qxd5 20. Ne1 $18 { [%cal Rg2b7] }) 20. Qc3 { [%cal Rc3g7] } 20... f6 21. Bh3 $18 { Trapping the queen on f5! }) 17... Qxf4 18. Bxf4 Ke7 19. Ne5 Bxg2+ 20. Kxg2 Rhc8 { Black will rely on the queenside pawn majority to create play. } { [%cal Gc4c3] } 21. Ng4 Bd6 22. Kf3 (22. Bxd6+ Kxd6 23. Rh3!? $13 { This would've been an interesting approach from White to stall Black's c3 push while activating the rook. } { [%cal Rc4c3,Ge2e4] }) 22... c3! { While Robert is hoping to create play in the center and kingside by utilizing his pawn majority, Kyron strikes first on the queenside and infiltrates with his rooks. Although the engine claims equality it feels like Black's moves are easier to find. } 23. bxc3 Rxc3+ 24. e3 Rac8 { Dominating the sole open file. } 25. Bxd6+ Kxd6 26. Rhb1 R8c4 { Preparing ... b5-b4 and ... a6-a5. Very consistent play from Kyron! } { [%cal Gb5b4] } 27. Rb3 b4 28. Rxc3 Rxc3 29. Ke4 a5 { Very direct play from Kyron, who utilizes his queenside trumps. } 30. Rb1 { White activates the rook at the cost of allowing a dangerous passer. } 30... Rc2 31. a3 bxa3 32. Rb5 a4 33. Rb4 a2 34. Rxa4 Rd2! { A good practical decision to prevent Ke4-d3. White has the a2 pawn under control for now, but both his king and his knight are frozen out of queenside participation. } { [%cal Re4d3] } 35. f4?? { A natural move for White... but it loses! White undoubtedly wanted to remove the f2-pawn from harm before playing either Ng4-e5 or Ng4-f6. As we'll see, however, the shocking downside is that his king is now trapped in a key variation! } (35. Ra6+ { I'm sure there are more reliable setups for White to choose, but I found the following line entertaining: } 35... Kc7 36. f3 Kb7 37. Ra3 { White has resources of Ng4-f6 or Ng4-e5, as he hoped, as well as Ke4-e5 to get counterplay if Black tries to advance the king or knight to help the a2-pawn but it's not so easy, and White must be very precise. For example } 37... Nb6 38. Ne5 Nd5 39. Nxf7 Re2!? 40. Nd6+ Kb6 41. Nc4+ Kb5 42. Kd3 Rg2 43. Ra5+ Kb4 44. Ra6 Nc3 { [%cal Gc3a4] } 45. Rb6+ Nb5 46. Ra6 Kb3 47. Na5+ Kb2 48. Nc4+ Kc1 49. f4 Rc2 { [%cal Rc2c3] } 50. Ke4 Kb1 51. Nb6 a1=Q 52. Rxa1+ Kxa1 53. Ke5 { And apparently this endgame is all 0.00! }) 35... Kc6! { Suddenly the black king is coming to support the a2-pawn. White hadn't missed it though and was relying on: } { [%cal Gc6b5] } 36. Ne5+ Kb5! $19 { I was observing the game in person and thought at first White was winning. Obviously Robert went for this position assuming the same thing but then we both realized the nasty trap that Kyron had set! } 37. Ra3 { Robert thought down to his final minutes but there is no saving the game as he played out the last moves through inertia. } (37. Rxa2 { White was relying on this resource. } 37... f5+! { This in-between move is the point, thereby explaining why White's earlier f-pawn push was so disastrous! } (37... Rxa2?? 38. Nxd7 $18 { would be winning for White! } { [%csl Rh7] }) 38. gxf6 (38. Kf3 Nxe5+ 39. fxe5 Rxa2 $19) 38... Nxf6+ 39. Kf3 Rxa2 $19) 37... f5+ 38. gxf6 Nxf6+ 39. Kf3 Nd5 40. Nxg6 Kb4 41. Ra7 Nc3 42. Rb7+ Nb5 43. Ne5 a1=Q { A very high-quality win for Kyron which was a well-deserved way to crown his fifth victory and his second GM norm. For fans of Kramnik and accuracy scores, Chess.com gave him 97.3% accuracy for this game. The game was also a great demonstration of Kyron's strengths in the event which propelled him to his norm: 1. Strong preparation 2. Great practical decision making 3. Accurate calculation Credit must also be given to Robert who came to fight with a very interesting approach in what was no doubt a difficult loss. Nevertheless he was able to bounce back with a final round victory over IM Levy "GothamChess" Rozman to finish with 6/9 and in shared second place with GM Oliver Barbosa. } 0-1