[Event "8th Sinquefield Cup 2021"] [Site "Saint Louis USA"] [Date "2021.08.20"] [Round "4"] [White "Swiercz, Dariusz"] [Black "Xiong, Jeffery"] [Result "1-0"] [ECO "B96"] [WhiteElo "2655"] [BlackElo "2710"] [Annotator "Monokroussos,Dennis"] [PlyCount "107"] [EventDate "2021.08.16"] 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 h6 8. Bh4 Qb6 9. a3 Nbd7 (9... Qxb2 $4 10. Na4 $18 {is a simple but important trick that shows the point of 9.a3.}) (9... Be7 {is more common than the text, but the two moves can transpose.} 10. Bf2 Qc7 11. Qf3 Nbd7 12. O-O-O b5 13. g4 Bb7 14. h4 Nc5 {etc.}) 10. Bf2 Qc7 11. Bd3 (11. Qf3 b5 (11... Be7 {- see 9...Be7.}) 12. O-O-O Bb7 13. g4 Nc5 (13... d5 $146 14. e5 Ne4)) 11... b5 12. Qe2 Bb7 (12... Be7 13. O-O-O Nc5) 13. O-O-O Be7 (13... Nc5) (13... Rc8) 14. Kb1 (14. g4) 14... g6 $146 (14... Rb8 $146 {makes sense - it's a bit of old Najdorf wisdom that when White plays a3 in 6.Bg5, 0-0-0 lines Black should play ...Rb8 and ...b4. Here the bishop is on the way in b7, but maybe Black will have time for ...Ba8. It looks a little slow, but I think Black is already in trouble in any case.}) (14... Rc8) (14... Nc5) 15. Rhe1 Nc5 (15... e5 $2 {looks like the point of 14.. .g6, but it doesn't work here due to} 16. Nd5 $1 {, as Swiercz noted in the post-game commentary. For example:} Nxd5 17. exd5 Bxd5 18. Bxb5 (18. fxe5 { first may be even better.}) 18... axb5 (18... O-O 19. Bxd7 Qxd7 20. fxe5 $18) 19. Nxb5 Qc6 20. Rxd5 $18) 16. g4 g5 17. fxg5 (17. f5 $142 $16 {/+-}) 17... hxg5 18. Bg3 (18. Rf1 $142) (18. Be3 $142) 18... O-O-O $2 (18... Nfd7 {doesn't end all possible problems, but it keeps Black in the game.} 19. Bxb5 axb5 20. Nf5 {is a spectacular option that leads to a very slightly superior ending, of all things, after} exf5 21. exf5 O-O-O 22. Qxe7 Ne5 23. Qxc7+ Kxc7 24. Nxb5+ Kc6 25. Nxd6 f6 26. Bxe5 fxe5 27. Nf7 Rxd1+ 28. Rxd1 Rxh2 29. b4 Na4 30. Nxe5+) 19. Rf1 $1 $18 Qb6 20. Nb3 Ncd7 21. Bf2 $6 (21. a4 $1 {should lead to a speedy win. Swiercz saw this, but was attracted by another idea before realizing that it didn't work.}) 21... Qc7 22. a4 $1 (22. Bxb5 $4 axb5 23. Nxb5 {would win on the spot, were it not for} Ba6 {. Not the hardest move to find, especially for a strong GM like Swiercz, but after losing three in a row one's mind plays tricks on a player. He saw this in time, but not before playing 21.Bf2.}) 22... bxa4 23. Nxa4 Qc6 $2 (23... Rxh2 {isn't great, but it's better than the text.} 24. Bxa6 $18) 24. Nc3 (24. Nb6+ $1 Nxb6 25. Na5 Qc7 26. Bxa6 $18 {is just over. }) 24... Rxh2 25. Na5 Qc7 26. Nxb7 Kxb7 27. Bxa6+ Ka8 28. Nb5 Qc6 29. Nd4 Qb6 30. Rd3 $1 Nc5 31. Ra3 Kb8 32. Nf3 $4 {This gives away almost the entire advantage, which goes from one-good-move-and-Xiong-resigns to a dogfight.} (32. Nb3 $18) (32. Nxe6 fxe6 33. Bxc5 Rxe2 34. Bxb6 Rxe4 35. Rb3 $18 (35. Bxd8 $18)) (32. Ra5 $1 $18 {is the most effective move. Here Black can offer a handshake (or a fist bump).}) 32... Rxf2 $8 33. Qxf2 Nfxe4 $2 (33... Kc7 $3 34. Bd3 $1 Nxg4 $1 $16 {/+/=}) 34. Qe3 Kc7 35. Nd4 Rb8 36. Bb5 f5 $1 37. c4 (37. gxf5 $142 ) 37... d5 38. gxf5 e5 39. Nc6 dxc4 40. Nxb8 Qxb5 {The time control has been made, and White retains a winning advantage. The position is still a bit messy, and we haven't seen the last adventure yet.} 41. Na6+ (41. Ra7+ $1 Kxb8 42. Rxe7 c3 43. Rf2 $8 {and because taking on f2 leads to a quick mate, Black is toast.} Nxf2 44. Qxe5+ Ka8 45. Qd5+ Kb8 (45... Nb7 46. Qxb5 $18) (45... Qb7 46. Re8+ Ka7 47. Qxc5+ $18) 46. Qd8#) 41... Nxa6 42. Rxa6 c3 43. Ra7+ Kb8 44. Ra8+ $1 Kxa8 45. Qxe4+ Ka7 46. Rf2 Bc5 47. Qd5 $1 Kb6 {Another critical moment.} 48. Qe6+ $2 (48. Rc2 {was simplest, e.g.} Qf1+ 49. Rc1 Qxf5+ 50. Ka2 $18 {and because Black's king is so exposed the nearly balanced material situation doesn't come close to saving him.}) 48... Ka5 49. Rc2 Ba3 $2 {Now White is winning again.} (49... Bd4 $1 50. f6 Qf1+ 51. Ka2 cxb2 52. Qd5+ Kb4 $11 { and because Black's queen covers the c4 square - what Swiercz confessed to overlooking - White has no win.}) 50. b3 Qc5 51. f6 Bb2 52. Rxb2 $5 {A nice idea that was rewarded, but there was better.} (52. b4+ $1 Qxb4 (52... Kxb4 53. Rxb2+ cxb2 54. Qe7 $18) 53. Qxe5+ Ka6 54. Qe2+ Ka5 55. Rxb2 cxb2 56. Qe5+ Ka6 57. Qe6+ Kb5 58. Qe8+ $1 {and it transpires that Black cannot avoid the exchange of queens.}) 52... cxb2 $2 (52... Qg1+ {would not save the game, but it would make it much harder for White to win.} 53. Ka2 cxb2 54. Qxe5+ Kb4 { and the game goes on (and on, and on).}) 53. b4+ $1 {At last, White reels in the full point.} Kxb4 (53... Qxb4 54. Qa2+ Kb5 55. Qxb2 $18) 54. Qe7 1-0 [Event "8th Sinquefield Cup 2021"] [Site "Saint Louis USA"] [Date "2021.08.20"] [Round "4"] [White "Caruana, Fabiano"] [Black "So, Wesley"] [Result "1/2-1/2"] [ECO "A33"] [WhiteElo "2806"] [BlackElo "2772"] [PlyCount "106"] [EventDate "2021.08.16"] {[%evp 0,106,57,-16,19,23,23,21,21,8,13,13,13,-14,-12,-31,-31,45,34,22,17,2,13, -4,26,35,41,0,0,-19,35,44,44,43,44,5,18,18,0,0,0,0,0,0,0,0,1,21,32,5,42,31,43, 64,55,55,65,59,59,59,64,69,65,56,66,62,68,63,51,62,59,51,46,41,19,29,105,66,79, 53,69,68,84,105,83,104,101,54,75,25,0,0,40,35,40,31,43,23,23,23,23,0,0,0,0,0,0, 0,0]} 1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6 4. d4 cxd4 5. Nxd4 e6 6. g3 Qb6 7. Nb3 Ne5 8. e4 Bb4 9. Qe2 d6 10. Bd2 O-O 11. Bg2 Bd7 12. f4 Ng6 13. Rc1 Bc6 14. a3 Bxc3 15. Rxc3 a5 16. Qe3 Ra6 17. c5 dxc5 18. Nxc5 Raa8 19. Nb3 Qxe3+ 20. Rxe3 Ng4 21. Rc3 Rfd8 22. Rc4 Bb5 23. Rc5 Ba4 24. h3 Nf6 25. e5 Nd5 26. Bxd5 exd5 27. Nd4 b6 28. Rc7 Rac8 29. Rb7 Rb8 30. Rxb8 Rxb8 31. Kf2 Rc8 32. b4 axb4 33. Bxb4 h5 34. Ke3 Rc4 35. h4 Nf8 36. Bxf8 Kxf8 37. Rb1 b5 38. Kd3 g6 39. f5 gxf5 40. Rf1 b4 41. axb4 Rxb4 42. Rxf5 Bd1 43. Rf6 Bg4 44. Ke3 Rb1 45. Nf5 Rb3+ 46. Kd4 Bxf5 47. Rxf5 Rxg3 48. Rxh5 Kg7 49. Kxd5 Rg4 50. Rg5+ Rxg5 51. hxg5 Kg6 52. e6 fxe6+ 53. Kxe6 Kxg5 1/2-1/2 [Event "8th Sinquefield Cup 2021"] [Site "Saint Louis USA"] [Date "2021.08.20"] [Round "4"] [White "Rapport, Richard"] [Black "Svidler, Peter"] [Result "1-0"] [ECO "A07"] [WhiteElo "2763"] [BlackElo "2714"] [Annotator "Monokroussos,Dennis"] [PlyCount "75"] [EventDate "2021.08.16"] {[%evp 0,75,19,-18,-8,-11,16,29,36,36,49,36,42,33,41,33,63,60,50,50,44,55,43, 22,20,30,14,8,32,-10,-16,7,7,-15,-37,-48,-48,-31,-23,-47,-66,-45,-66,-46,-42, -76,-81,-106,-98,-102,-102,-140,-67,-18,-33,-158,-169,-65,-66,-61,-55,-42,-41, -42,320,-3,40,-6,35,29,345,361,361,375,375,391,385,382]} 1. g3 d5 2. Nf3 Nd7 3. d4 Nb6 {A bizarre-looking move that has Tarrasch spinning in his grave. But the bottom line, as always in contemporary chess, is that it works. The d-pawn is safe, and Black will have a hard time prying open the diagonal of the (soon-to-be) g2-bishop to any useful purpose.} 4. a4 a5 5. Nc3 $146 ({For those curious about 3...Nb6, here are some recent high-level games.} 5. Bg2 Bf5 6. O-O e6 7. Nbd2 Nf6 8. c4 c6 9. Nh4 Bg4 10. h3 Bh5 11. g4 Nfd7 12. Ndf3 Be7 13. c5 Nc8 14. gxh5 Bxh4 15. Qb3 Ra7 16. Nxh4 Qxh4 17. Qg3 Qxd4 18. Qc7 Ke7 19. Bf4 Qxc5 20. Bg3 e5 21. h6 b6 22. hxg7 Rg8 23. Bh4+ Ke6 24. Qd8 Rxd8 25. Bxd8 Ne7 26. Bxe7 Qxe7 27. g8=Q Nf6 28. Qc8+ Kd6 29. b4 axb4 30. Qb8+ Qc7 31. Qh8 Ke7 32. Rfd1 e4 33. Qg7 Qe5 34. Rac1 c5 35. Qh6 Rxa4 36. Qh4 b3 37. e3 b2 38. Rb1 Rb4 {0-1 (38) Andreikin,D (2726)-Alekseenko,K (2696) Chess.com INT 2020}) ( 5. b3 Bf5 6. Ba3 c6 (6... Nf6 7. Nbd2 Nbd7 8. Nh4 Bg6 9. Bg2 e6 10. Bxf8 Nxf8 11. O-O Bh5 12. Re1 N8d7 13. Bf3 Bxf3 14. Nhxf3 O-O 15. e4 dxe4 16. Nxe4 Nxe4 17. Rxe4 Nf6 18. Re1 c6 19. Qe2 Qc7 20. Rad1 Rfd8 21. Rd3 h6 22. Ne5 Rd5 23. Kg2 Rad8 24. Red1 Nd7 25. Nc4 Nf6 26. Ne5 Nd7 27. Nf3 Nf6 28. Ne5 Qb6 29. Nc4 Qa6 30. Qf3 b5 31. Ne5 b4 32. c4 R5d6 33. h4 Nd7 34. Qxf7+ Kh8 35. Ng6+ Kh7 36. h5 Qa8 37. Qf3 Nf6 38. Ne5 Qb7 39. g4 Qc7 40. Qe3 Kg8 41. f3 Qb7 42. R3d2 Rf8 43. Nd3 Nxg4 44. fxg4 Rxd4 45. Qxe6+ Kh7 46. Nc5 Rxd2+ 47. Rxd2 Qc7 48. Qg6+ Kh8 49. Ne6 Qb7 50. Nxf8 c5+ 51. Kg1 {1-0 (51) Meier,G (2621)-Esipenko,A (2682) Lichess.org INT 2020}) 7. Nbd2 h6 8. Bg2 (8. c4 Nf6 9. Bg2 Nbd7 10. cxd5 cxd5 11. O-O e6 12. Bxf8 Nxf8 13. Qc1 N8d7 14. Qb2 O-O 15. Rfc1 Qb6 16. e3 Rfc8 17. Bf1 Qb4 18. Bb5 Nb6 19. Ne5 Ne4 20. Nxe4 Bxe4 21. Bd3 f6 22. Bxe4 dxe4 23. Ng6 Nd5 24. Nf4 Nxf4 25. gxf4 g5 26. fxg5 hxg5 27. Rc2 Kf7 28. Rac1 Rxc2 29. Qxc2 f5 30. Qc7+ Kg6 31. Qe5 Qxb3 32. Rc7 Qd1+ 33. Kg2 Qg4+ 34. Kf1 Qd1+ 35. Kg2 Qf3+ 36. Kg1 Qd1+ 37. Kg2 {1/2-1/2 (37) Meier,G (2628)-Wojtaszek,R (2705) Tornelo INT 2020}) 8... Nf6 9. O-O Nbd7 10. Re1 e6 11. Bxf8 Nxf8 12. Ne5 N8d7 13. e4 dxe4 14. Nxe4 Nxe4 15. Bxe4 Bxe4 16. Rxe4 Nf6 17. Re3 O-O 18. Rd3 Qc7 19. Qf3 Rad8 20. Rad1 Nd5 21. R3d2 Ne7 22. Nc4 Nf5 23. c3 Rd5 24. Ne3 Nxe3 25. fxe3 Rfd8 26. Kg2 Qe7 27. e4 R5d7 28. Qe3 Qa3 29. c4 Qb4 30. d5 exd5 31. cxd5 cxd5 32. Rxd5 Qe7 33. Qd4 Rxd5 34. exd5 Qe2+ 35. Kg1 Rd6 36. Qd3 {1/2-1/2 (36) Meier,G (2628)-Wojtaszek,R (2705) Tornelo INT 2020}) 5... Nf6 6. Bg2 Bf5 7. Nh4 e6 8. Nxf5 exf5 9. Qd3 Qd7 10. O-O Bb4 11. Nd1 O-O (11... h5 $5) 12. f3 Rfe8 13. Nf2 Qe6 14. Bg5 Nc4 15. c3 Bf8 16. Rae1 (16. Bh3 Qxe2 17. Bxf5 Qxd3 18. Nxd3 Ne3 19. Bxe3 Rxe3 20. Ne5 $11) 16... Nxb2 17. Qc2 Nc4 18. e4 h6 (18... c5 19. e5 Nd7 20. Bh3 Ndb6 21. Bxf5 Na3 {is an easy little trick to miss. But it turns out that what might seem like a bug turns out to be a feature.} 22. Bxh7+ Kh8 23. Qd3 c4 24. Qd1 Kxh7 25. f4 Kg8 26. Ng4 Qg6 27. Ne3 $44) 19. Bxf6 Qxf6 20. e5 Qe6 21. f4 h5 22. h3 (22. Nh3) 22... g6 23. g4 {What now? It's tempting to grab the pawn rather than allowing one's pawn structure to be damaged, but here the natural decision is mistaken.} hxg4 (23... c6 $1 24. gxh5 Be7 { is fine for Black, who may even be a touch better.}) 24. hxg4 fxg4 25. Qd1 g3 $2 (25... Be7 $1 26. Nxg4 Kg7 $1 {had to be played, covering f6 and clearing h8 for the rook.}) 26. Ng4 $18 Bg7 27. Bh3 (27. Ne3 $1) 27... Qb6 (27... Qe7 28. f5 Qh4 {was better, but probably still inadequate after} 29. Kg2) 28. Qd3 c5 29. Rb1 Qc7 $2 (29... Qd8 {was again better, staying in closer touch with the kingside. But it's not easy to invite White to play Rxb7. The key difference is that} 30. f5 {(?) isn't very good here, thanks and thanks only to } Qg5) 30. f5 {And now it's over.} Ra6 31. f6 cxd4 32. cxd4 {Good enough, but there was a nicer way to finish things off.} (32. fxg7 Nxe5 33. Qxa6 $1 { Seeking a checkers-like finish.} bxa6 (33... Nxg4 34. Rxb7 $18) 34. Nf6+ Kxg7 35. Nxe8+ Kf8 36. Nxc7 $18) 32... Bf8 33. Qxg3 Nd2 34. Qh4 Ne4 (34... Nxf1 { forces White to be a little accurate.} 35. Rxf1 (35. Nh6+ $4 {is the trap.} Bxh6 36. Qxh6 {looks fatal, but it's not.} Rxf6 $1 37. exf6 Qg3+ ({or} 37... Qh2+ 38. Kxf1 Qh1+ 39. Kf2 Qh2+ 40. Kf1 ({Trying to avoid the draw with} 40. Kf3 $2 {will succeed in doing so, but not as White intends:} Qe2+ 41. Kg3 Re3+ {and White must either toss away the queen with 42.Qxe3, which is hopeless, or move the king and get mated in a few moves.}) 40... Qh1+ $11) 38. Kxf1 Qd3+ $11 ) 35... Qc3 36. Nh6+ Bxh6 37. Qxh6 Rxf6 38. exf6 Qe3+ 39. Qxe3 Rxe3 40. Bg2 $18 ) 35. Nh6+ Bxh6 36. Qxh6 Nxf6 37. exf6 Qg3+ 38. Bg2 (38. Bg2 Qe3+ 39. Qxe3 Rxe3 40. Rxb7 {is hopeless for Black.}) 1-0 [Event "8th Sinquefield Cup 2021"] [Site "Saint Louis USA"] [Date "2021.08.20"] [Round "4"] [White "Shankland, Sam"] [Black "Mamedyarov, Shakhriyar"] [Result "1-0"] [ECO "C65"] [WhiteElo "2709"] [BlackElo "2782"] [PlyCount "86"] [EventDate "2021.08.16"] {[%evp 0,86,17,28,28,24,28,17,27,22,22,-12,141,-51,10,-4,10,-30,-15,-58,11,5, 39,41,19,30,29,30,31,12,24,12,22,27,23,42,36,27,13,25,64,39,71,59,38,38,60,49, 80,64,80,81,55,55,55,92,92,92,92,86,98,90,66,52,80,80,106,113,109,125,183,181, 165,161,159,160,187,176,195,160,160,175,303,308,308,308,392,408,424]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3 Bc5 5. c3 d5 6. exd5 Qxd5 7. Bc4 Qd8 8. Bg5 h6 9. Bh4 g5 10. Bg3 e4 11. Qe2 Qe7 12. dxe4 Nxe4 13. Nbd2 Nxg3 14. Qxe7+ Bxe7 15. fxg3 Bf5 16. O-O Bg6 17. Bb5 O-O-O 18. Bxc6 bxc6 19. Nb3 Rd5 20. Rae1 Bf6 21. Nfd4 Bxd4+ 22. Nxd4 Kb7 23. Nb3 Kb6 24. c4 Rd7 25. a4 a5 26. Rf6 Ra8 27. Re5 Rd1+ 28. Kf2 Ra6 29. Rb5+ Ka7 30. Rxa5 Rxa5 31. Nxa5 Rd2+ 32. Kf3 Rxb2 33. Nxc6+ Ka8 34. Ne5 Bc2 35. Nxf7 h5 36. Nxg5 Bd1+ 37. Ke3 Re2+ 38. Kd4 Rxg2 39. a5 Rxh2 40. Ne6 h4 41. Nxc7+ Kb8 42. Nb5 hxg3 43. a6 Rh8 1-0 [Event "8th Sinquefield Cup 2021"] [Site "Saint Louis USA"] [Date "2021.08.20"] [Round "4"] [White "Dominguez Perez, Leinier"] [Black "Vachier Lagrave, Maxime"] [Result "1-0"] [ECO "B90"] [WhiteElo "2758"] [BlackElo "2751"] [Annotator "Monokroussos,Dennis"] [PlyCount "65"] [EventDate "2021.08.16"] {[%evp 0,65,13,8,46,51,97,88,62,24,26,32,40,52,42,34,35,15,42,26,18,6,17,10,24, 27,14,25,32,-12,9,-21,-21,-22,-7,-16,-16,2,14,17,24,-10,44,-85,-46,-46,29,21, 36,36,-22,-22,-38,-81,-84,-42,-37,-16,-16,0,135,171,171,260,288,361,29991, 29992]} 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3 Be7 (8... h5) 9. Qd2 O-O (9... h5) 10. O-O-O Nbd7 11. g4 b5 12. g5 Nh5 13. Kb1 (13. Nd5) 13... Nb6 14. Na5 (14. Nd5 {used to be almost automatic, but at present seems to have been solved.} Nxd5 15. exd5 Bf5 16. Na5 f6 17. Nc6 Qd7 18. h4 Ng3 19. Rg1 Nxf1 20. Rdxf1 fxg5 21. hxg5 Bg6 22. Rf2 Rae8 {and in correspondence chess the results have been draw after draw after.}) 14... Rc8 ( 14... Qc7) 15. Nd5 (15. a3) 15... Nxd5 16. exd5 Bxd5 17. Qxd5 Qxa5 18. c4 Nf4 19. Bxf4 exf4 20. h4 {All this has happened before as well, though there haven't been so many games.} Qa4 21. Bd3 $146 {This does not promise White an advantage, and this will never be seen again at top level chess. But in this one-off, MVL was unable to figure things out at the board, and Dominguez won a brilliant game.} (21. Rc1 Rfe8 22. Bd3 Rc5 23. Qe4 g6 24. cxb5 axb5 25. Qxa4 { 1/2-1/2 (25) Voll,A (2558)-Wunderlich,H (2572) ICCF email 2018}) (21. Re1 Rc5 22. Qd2 Re5 23. cxb5 axb5 24. Rxe5 dxe5 25. Qd5 Rc8 26. Bd3 e4 27. Qxe4 Qxe4 28. Bxe4 b4 {Another Wunderlich game ended here: draw agreed.} 29. Re1 Kf8 30. Bd3 {1/2-1/2 (30) Lobanov,E (2521)-Wunderlich,H (2572) ICCF email 2018}) 21... bxc4 22. Qe4 g6 23. Bc2 Qd7 $2 (23... Qe8 $1 {had to be played, preventing 24. h5 because 24...Bxg5 threatens to swap queens.} 24. Rde1 Rc7 25. h5 d5 $1 26. Qe5 (26. Qxd5 $2 Qb5 $17) 26... Qc6 $8 27. hxg6 fxg6 28. Rh6 Qd6 $8 29. Bxg6 Qxe5 $8 30. Bxh7+ Kg7 31. Rxe5 Bxg5 32. Rh2 Bf6 33. Rxd5 Rh8 {and Black is at last enjoying a safe equality.}) 24. h5 $1 Qe6 25. hxg6 hxg6 (25... Qxe4 $8 26. gxf7+ Kxf7 27. Bxe4 Bxg5 (27... Rh8 28. Rxh7+ Rxh7 29. g6+ Kg7 30. gxh7 $18) 28. Rxh7+ Ke6 29. Bd5+ $16 {is going to be difficult for Black to hold.}) 26. Qxf4 Qe5 27. Qh4 Qg7 {The winning plan is clear: triple on the h-file. But what's the right way to do it?} 28. Rd2 $3 (28. Rh2 $2 Rc5 29. f4 Rb8 30. b3 cxb3 31. Bxb3 Rxb3+ 32. axb3 Ra5 33. Rb2 (33. Ra2 $2 Qc3 $1 $11) 33... Qc3 { and now only} 34. Qe1 Qf3 35. Qxa5 Qxd1+ 36. Ka2 {keeps a meaningful advantage, and it's not a winning plus.} Qf3 $16) 28... Rc5 29. f4 f6 (29... Rb8 $142 30. b3 cxb3 31. Bxb3 Rxb3+ 32. axb3 Ra5 {and now both 33.Ra2 and 33.Rb2 win easily. The main point is that Black won't get counterplay with ...Qc3 thanks to White's retaining a rook on the h-file.} 33. Rb2 Qc3 34. Qh7+ (34. Qh3 { also wins, and shows another value of keeping a rook on the h-file.}) 34... Kf8 35. Qh8+ $18) 30. Rdh2 fxg5 31. Qe1 $1 {Very nice.} Bf6 32. Rh6 $1 {All White's pieces are operating at full strength, and the end is nigh.} Qb7 (32... Qf7 33. Rxg6+ Bg7 34. Rxg7+ $1 Qxg7 (34... Kxg7 35. Rh7+ $18) 35. Qe6+ Rf7 36. Bh7+ $1 Kh8 (36... Kf8 37. Qxd6+ {and 38.Qxc5, winning.}) 37. Bg6+ Kg8 38. Bxf7+ Qxf7 39. Rh8+ $18) 33. Qe6+ (33. Qe6+ Qf7 (33... Rf7 34. Qe8+ Rf8 35. Qxg6+ Qg7 36. Rh8#) 34. Rxg6+ Bg7 35. Rxg7+ Kxg7 36. Qh6+ Kg8 37. Qh8#) 1-0