[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.10"]
[Round "1.1"]
[White "Tan, Zhongyi"]
[Black "Kashlinskaya, Alina"]
[Result "0-1"]
[Annotator "Tactical Analysis 7.0"]
[ECO "C11"]
[WhiteElo "2546"]
[BlackElo "2459"]
[PlyCount "70"]
[GameId "2187547683536991"]
[EventDate "2025.06.10"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4 5. Nxe4 Nbd7 6. Nf3 h6 7. Nxf6+ Nxf6 8. Be3 Bd6 {C10: French with 3 Nc3: Unusual Black 3rd moves and 3...dxe4.} 9. Bd3 O-O {9...0-0 scores better than 9...b6.} 10. Qe2 {Black should prevent 0-0-0.} b6 $1 {The position is equal.} 11. O-O-O Bb7 12. Kb1 Nd5 13. c4 $146 (13. Bc1 $11 {keeps the balance.}) ({Predecessor:} 13. Bd2 Qf6 14. Ne5 Nf4 15. Bxf4 Qxf4 16. g3 Qf6 17. Rhe1 Bxe5 18. dxe5 Qf3 19. Qf1 {½-½ Firouzja,A (2600)-Nisipeanu,L (2667) Bayern-chI Bank Hofmann 22nd Tegernsee 2018 (7)}) 13... Nb4 $1 $17 14. Ka1 Nxd3 15. Rxd3 Qf6 16. Bd2 Rfd8 17. Bc3 Qf5 18. Rhd1 a5 {Black is more active.} (18... Rd7 {keeps more tension.} 19. g4 Qxg4 20. d5 Qxc4 21. Ne5 Bxe5 22. Qxe5 Qg4) 19. h3 ({White should play} 19. Rg1) 19... Ba6 $1 20. g4 {[#]} Qh7 21. Nd2 {[#]} (21. Re3 $142) 21... b5 $1 $19 22. d5 $2 (22. Bxa5 bxc4 23. Rc3) 22... bxc4 23. Re3 exd5 {[%cal Od5d4] and ...d4! would now be decisive} 24. Nf3 Bf8 25. g5 c5 26. g6 Qxg6 (26... fxg6 27. Re7 Bc8 28. Re8 Bxh3 29. Rxd8 Rxd8 30. Qe5 $19) 27. Ne5 (27. Rg1 $142 Qb6 28. Bxg7 Bxg7 29. Ne5) 27... Qf5 28. Ng4 {[%cal Og4h6] Nxh6+! is the strong threat.} d4 29. Rg1 Rd6 (29... dxe3 $2 30. Nxh6+ (30. Bxa5 $2 c3 $19 {[%mdl 64] Promotion}) 30... Kh7 31. Nxf5 $18) 30. Rf3 Qd5 31. Rf6 dxc3 (31... gxf6 32. Nxf6+ Kh8 33. Rg8#) 32. Nxh6+ Kh7 33. Rxd6 Bxd6 34. Nxf7 cxb2+ 35. Kb1 {Black took control after the opening.   Weighted Error Value: White=0.67/Black=0.05 (flawless)} Qf5+ (35... c3 $142 36. Ng5+ Kg8 (36... Kh8 $2 37. Qh5+ Kg8 38. Qh7+ Kf8 39. Ne6+ Qxe6 40. Qh8+ Qg8 41. Qxg8+ Kxg8 42. Rd1 $19) 37. Qc2 Bd3 {[%mdl 64] Pin} 38. Rd1 Bxc2+ {[%csl Od1][%mdl 64] Discovered Attack} 39. Kxc2 b1=B+ {[%mdl 64] Deflection} (39... Qxd1+ {is a self mate.} 40. Kxd1 b1=Q+ 41. Ke2 Re8+ 42. Kf3 Qf5+ 43. Kg2 Qxg5+ 44. Kf3 Qg6 45. h4 Qe4#) 40. Rxb1 Qd2+ (40... Qxg5 41. Kxc3 Qe5+ 42. Kd2 Qd5+ 43. Kc2 Qc4+ 44. Kd1 Bf4 45. Rb3 Rd8+ 46. Ke1 Qc1+ 47. Ke2 Qd1#) (40... Qxa2+ 41. Kxc3 Qxb1 42. Kc4 Qd1 43. Nf7 Kxf7 44. Kb5 Qb3+ 45. Kc6 Rc8+ 46. Kxd6 Qe6#) 41. Kb3 Rb8+ {[%mdl 64] Skewer} (41... Qxg5 42. Kxc3 Qe5+ 43. Kd2 Qd5+ 44. Kc1 Be5 45. Rb3 Rd8 46. Rc3 Qd2+ 47. Kb1 Rb8+ 48. Rb3 Qd1#) 42. Ka3 c4+ (42... Rxb1 $2 43. h4 c4+ 44. Ka4 Qxa2#) 43. Rb4 axb4+ 44. Ka4 Qxa2#) 0-1

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.10"]
[Round "1.2"]
[White "Koneru, Humpy"]
[Black "Dzagnidze, Nana"]
[Result "1-0"]
[Annotator "Tactical Analysis 7.0"]
[ECO "D47"]
[WhiteElo "2543"]
[BlackElo "2505"]
[PlyCount "62"]
[GameId "2187554532675995"]
[EventDate "2025.06.10"]

1. d4 Nf6 2. c4 e6 3. Nf3 d5 4. Nc3 c6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 Bb7 9. O-O a6 10. e4 c5 11. d5 Qc7 12. dxe6 fxe6 13. Ng5 {D48: Semi-Slav: Meran System: 7...b5 8 Bd3 a6.} Qc6 14. Be2 Rd8 $2 (14... b4 $11 15. Na4 h6) 15. Qd3 $5 $146 {[%mdl 8] White is much more active. White is clearly better. New and interesting.} ({Predecessor:} 15. a4 b4 16. Nb1 Ne5 17. Nd2 h6 18. f4 hxg5 19. fxe5 Qc7 20. Qb3 Qxe5 21. Nf3 Qxe4 {0-1 Wang,H (2709)-Ding,L (2777) Huaian IMSA Basque 2nd rapid 2017 (3.2)}) 15... b4 16. Nd1 h6 17. Qh3 Ke7 (17... Nxe4 $2 18. Qh5+ (18. Nxe6 Ndf6 $18) (18. Qxe6+ Qxe6 19. Nxe6 Rc8 $16) 18... Ke7 19. Qf7+ Kd6 20. Qxe6+ (20. Nxe6 Ng5 $18) (20. Bf4+ e5 $18) 20... Kc7 21. Qxc6+ Kxc6 22. Nxe4 $18) (17... hxg5 $16 18. Qxh8 Ne5 (18... Qxe4 19. Bf3 $16 {[%mdl 64] Skewer})) 18. f4 (18. Ne3 $18) 18... g6 {[%cal Of8g7]} (18... Nxe4 $2 19. Nxe4 Qxe4 20. Bf3 $18) 19. Nf2 Bg7 20. Nf3 Nxe4 21. Ng4 $2 ({White should try} 21. Nh4 $16) 21... Rdf8 (21... g5 $1 $15) 22. Be3 (22. Re1 $14) 22... Bxb2 $11 23. Rad1 {[%cal Of1e1] [#]} g5 24. Bd3 $1 $14 {Some like it hot} Nef6 ({Black should try} 24... gxf4 $14 25. Nfe5 Bxe5 26. Nxe5 Nxe5 27. Bxe4 {[%mdl 64] Remove Defender} Qxe4 28. Bxc5+ Kf6) 25. fxg5 $2 {[%mdl 8192]} (25. Nge5 $16 Nxe5 26. Nxe5 Bxe5 27. fxe5) 25... hxg5 $19 26. Qg3 {[#] and Nxf6 should not be overlooked} c4 $4 {[%mdl 8192]} (26... Nxg4 27. Be4 Qb6 28. Qxg4 (28. Bxg5+ $2 Ngf6 $17) 28... Bxe4 29. Qxe4 $18) (26... Qd6 $1 $19 {[%cal Rd6g3] avoids the disaster. and ...Qxg3 would now be decisive} 27. Nxf6 (27. Qxd6+ Kxd6 28. Nxf6 Nxf6 $17) 27... Qxg3 28. hxg3 Bxf6) 27. Nxf6 (27. Bxc4 $6 Ne4 28. Qe1 Bc3 $14 (28... Qxc4 $2 29. Rxd7+ {[%mdl 64] Decoy} Kxd7 30. Nge5+ Kc7 31. Nxc4 $18)) 27... Nxf6 {[#]} (27... Rxf6 $2 28. Be4 Qc8 29. Bxb7 (29. Nxg5 Rxf1+ 30. Kxf1 Qb8 $18) 29... Qxb7 30. Bxg5 $18 (30. Nxg5 Rxf1+ 31. Kxf1 Be5 $14)) (27... cxd3 $142 28. Nxd7 Kxd7) 28. Bxc4 $2 Qxc4 $2 {[%mdl 8192]} (28... Ne4 $1 $15 {stays ahead.} 29. Ne5 (29. Bxg5+ Rf6 $17) 29... Rxf1+ 30. Rxf1 Nxg3 31. Nxc6+ Bxc6 32. Bc5+ Ke8 33. hxg3 Bb5 34. Bxb5+ axb5) 29. Qd6+ $18 {White is winning.} (29. Nxg5 $2 {perishes.} Bd5 (29... Qxa2 30. Qd6+ Ke8 31. Qd8#) 30. Rf3 Ng4 $19 (30... Bxf3 31. Qd6+ Ke8 32. Qd8#)) 29... Kf7 30. Ne5+ (30. Nxg5+ Kg8 31. Rf2 (31. Nxe6 Re8 $16) (31. Rd2 $2 Be5 $19) 31... Bc3 $16 (31... Nh7 $2 32. Rxf8+ Nxf8 33. Qe7 $18)) 30... Bxe5 31. Qxe5 {A brilliant game!   Weighted Error Value: White=0.70/Black=0.72} Kg6 $2 (31... Rh6 $18) 1-0

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.10"]
[Round "1.3"]
[White "Assaubayeva, Bibisara"]
[Black "Muzychuk, Mariya"]
[Result "1-0"]
[Annotator "Tactical Analysis 7.0"]
[ECO "B12"]
[WhiteElo "2509"]
[BlackElo "2492"]
[PlyCount "53"]
[GameId "2187561723921119"]
[EventDate "2025.06.10"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 5. c4 e6 6. Nc3 dxc4 7. Bxc4 Nd7 8. Nf3 {B12: Caro-Kann: Advance Variation.} Bg4 {outshines the older 8...Nb6.} 9. Be2 Ne7 10. Ng5 {The position is equal.} Bxe2 11. Nxe2 {[%cal Bc3e2,Be2d4,Bd4f3][%mdl 32]} c5 $146 ({Predecessor:} 11... Nf5 12. Ng3 g6 13. Nxf5 gxf5 14. Rh3 Nb6 15. Rb3 Qd5 16. Kf1 c5 17. Be3 Rd8 {0-1 Syrkiewicz,M (2086)-Kazakouski,V (2588) Bydgoszcz op 2024 (2)}) 12. O-O $40 {[%mdl 128] Black needs to defend precisely.} cxd4 $1 13. Nxd4 {[#]} Ng6 $2 {[%mdl 8192]} (13... Nxe5 $16 {is a better chance.} 14. Bf4 N5c6) 14. Qa4 (14. Nxf7 $142 Kxf7 15. Nxe6 {[%mdl 64] Decoy} (15. Qb3 $2 Qb6 $19)) 14... Ngxe5 $2 (14... Be7) 15. Bf4 $18 {White is clearly winning.} Bd6 16. Rfd1 {[%cal Od4e6] Threatens to win with Ndxe6!.} Qe7 17. Bxe5 (17. Nb5 Bb8 $18) 17... Bxe5 18. Ndf3 Bd6 {[%cal Be5d6,Bd6c7,Bc7f4][%mdl 32]} 19. Ne4 Bc7 20. Rac1 {[%cal Ba1c1,Bc1c3,Bc3c7][%mdl 32]} Bf4 21. Rc3 a6 22. Nc5 {[%csl Of4][%mdl 64] [#] Discovered Attack. Excellent horsemanship.} b5 23. Qe4 Rd8 24. Qxf4 O-O 25. Nb7 Rc8 26. Rc7 e5 {[%cal Oc8c7]} {White took control after the opening.   Weighted Error Value: White=0.31/Black=0.60} 27. Qc1 ({Less strong is} 27. Rcxd7 Qxd7 28. Rxd7 exf4 $16) 1-0

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.10"]
[Round "1.4"]
[White "Lee, Alice"]
[Black "Batsiashvili, Nino"]
[Result "1-0"]
[Annotator "Tactical Analysis 7.0"]
[ECO "D37"]
[WhiteElo "2389"]
[BlackElo "2462"]
[PlyCount "121"]
[GameId "2187565678425046"]
[EventDate "2025.06.10"]

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Nc3 Be7 5. Bf4 c5 6. dxc5 Bxc5 {6...Bxc5 scores better than 6...Na6. D37: Queen's Gambit Declined: 5 Bf4.} 7. e3 Nc6 8. Be2 {[%cal Bf1e2,Be2c4,Bc4b5][%mdl 32]} dxc4 {The position is equal.} 9. Qxd8+ Nxd8 10. Bxc4 Bb4 $146 ({Predecessor:} 10... a6 11. O-O b5 12. Be2 Bb7 13. Rac1 Rc8 14. a3 O-O 15. Rfd1 Be7 16. Bd6 Nc6 17. Bxe7 Nxe7 {½-½ Banas,M (1720)-Tobias,G (1944) SVK-chT2D 1516 Slovakia 2015 (11.6)}) 11. Rc1 Ne4 12. Be5 Nc6 (12... Nxc3 13. Bxc3 Bxc3+ 14. Rxc3 Nc6) 13. Bb5 (13. Bxg7 $5 Rg8 14. a3 Bxc3+ 15. Bxc3 $14) 13... Bd7 {Threatens to win with ...Nxe5.} (13... Nxc3 {simplifies} 14. Bxc3 Bxc3+ 15. Rxc3 Bd7) 14. O-O {[%cal Oe5g7]} (14. Bxg7 {feels hotter.} Rg8 15. a3 Bxc3+ 16. Bxc3 Rxg2 17. Bf1) 14... Nxc3 15. Bxc3 Bxc3 16. Rxc3 Ke7 17. Bxc6 Bxc6 18. Ne5 Rhc8 19. Rfc1 {[%cal Re5c6]} Kf6 20. Nxc6 (20. Rc5 $14 {feels stronger.}) 20... Rxc6 $11 21. Rxc6 bxc6 22. Rxc6 $14 {[%mdl 4096] Endgame and Ra6 should not be overlooked. KR-KR. White is a pawn up.} Rd8 $1 23. Rc1 {Prevents Rd1+} Rd2 24. Rb1 g5 25. g4 Ke5 26. Kg2 f5 27. h3 {Loses the game.} Ke4 $2 {[#]} (27... Kf6 $14) 28. a4 $1 $18 {[%cal Ba2a4,Ba4a5,Ba5a6][%mdl 32]} f4 29. exf4 gxf4 $2 (29... Kxf4 30. b4 h6) 30. b4 e5 31. a5 a6 32. b5 axb5 33. Rb4+ (33. Rxb5 Ra2 34. h4 Ra1 $16) 33... Kd5 34. Rxb5+ Kd6 35. Kf3 Ke6 36. a6 Rd3+ 37. Kg2 ({Not} 37. Ke4 Rd4+ 38. Kf3 Rd3+ 39. Kg2 Ra3 40. Rb6+ Kd5 $18) 37... Ra3 38. Rb6+ Kd5 39. Rf6 Ke4 40. Rd6 Ra1 41. Rf6 Ra2 42. g5 Kd5 43. h4 e4 44. Rf5+ Kd6 45. Rxf4 Ke5 46. Rf7 Rxa6 47. Rxh7 Kf5 48. Rh6 Ra2 49. Rh8 e3 {[%cal Oe3e2]} 50. Rf8+ Kg4 {[%cal Oe3e2]} 51. g6 {g7 would kill now.} Ra7 52. fxe3 (52. Rf7 $142 Ra8 53. g7 (53. fxe3 Kh5 $18)) 52... Rg7 53. Rf3 {White mates.} Kxh4 54. Rg3 Kh5 55. Kf3 Kh6 56. Kf4 Rg8 {[#]} 57. g7 $1 Kh7 (57... Rxg7 58. Rxg7) 58. Kf5 Rb8 59. g8=Q+ Rxg8 60. Rxg8 Kxg8 {Weighted Error Value: White=0.21 (precise) /Black=0.63} 61. Ke6 1-0

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.10"]
[Round "1.5"]
[White "Dronavalli, Harika"]
[Black "Yip, Carissa"]
[Result "1-0"]
[Annotator "Tactical Analysis 7.0"]
[ECO "C85"]
[WhiteElo "2483"]
[BlackElo "2431"]
[PlyCount "235"]
[GameId "2187578009765162"]
[EventDate "2025.06.10"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 dxc6 7. d3 Nd7 8. Be3 {C85: Closed Ruy Lopez: Deferred Exchange Variation.} O-O 9. Nc3 Re8 10. Ne2 {The position is equal.} f6 11. Nd2 Nf8 $146 ({Predecessor:} 11... a5 12. a4 Nc5 13. f4 exf4 14. Nxf4 Bf8 15. Qf3 Ne6 16. Nxe6 Bxe6 17. Kh1 c5 {0-1 Jarmula,L (2459)-Can,I (2423) Cattolica Grandiscacchi op 2nd 2022 (6)}) 12. f4 exf4 13. Nxf4 Ne6 14. Nh5 Nf8 15. Qf3 {[%cal Oe4e5]} Be6 16. Qf2 b6 17. a4 a5 18. Nf3 Bf7 19. Ng3 Ng6 {Prevents Ne5} 20. Ng5 Rf8 21. Nxf7 Rxf7 22. Nf5 Bd6 23. g4 Qd7 24. Kh1 c5 25. b3 Be5 26. Rad1 Qc6 27. Qg2 Re8 28. Bd2 Qe6 29. Rde1 Rd7 30. h4 Ne7 {[%cal Bg6e7,Be7c6,Bc6d4][%mdl 32]} 31. Re3 Nc6 32. Rh3 Nd4 33. Be3 Kh8 (33... Nxf5 $1 $11 34. gxf5 Qe7) 34. Bxd4 $16 cxd4 35. h5 (35. g5 $16) 35... h6 $11 36. Nh4 Kg8 37. Ng6 (37. Qf3 $14) 37... Bd6 (37... Rd6 $11) 38. Rhf3 Rdd8 (38... c6 $14) 39. Rf5 $16 Kh7 40. Qf3 Rd7 (40... c6 $1 $14 {was preferable.}) 41. Kg2 (41. Qf2 $16) 41... Rdd8 (41... c6 $1 $14) 42. Kh3 (42. Rd5 $18) 42... Kg8 ({Better is} 42... c6) 43. Qf2 {Black is weak on the light squares} c5 (43... Bb4 $16) 44. Rd5 (44. Kg2 $18) 44... Be5 45. Rxd8 (45. Qf3 $1 $16) 45... Rxd8 $14 46. Qf5 {Chess con chili.} Re8 47. Qxe6+ (47. Rf2 $16) 47... Rxe6 $16 {[%mdl 4096] Endgame KRB-KRN} 48. Rf5 {[%cal Og4g5]} Kf7 $1 49. Kg2 Re8 50. Kf3 Re6 $1 51. Ke2 Re8 52. Kf2 Re6 53. Nh4 Re7 54. Nf3 Ke6 {[#]} (54... Ke8 $11 {remains equal.}) 55. g5 $1 {[%cal Bg4g5,Bg5g6][%mdl 32]} Bc7 {[#]} (55... Kd7 $16) 56. g6 $1 $18 Rd7 {Against Rd5} 57. Ke2 Bg3 (57... Rd8 $142 58. Nh4 Bg3) 58. Kf1 Bc7 59. Kg2 Rd8 60. Nd2 ({White should try} 60. Kf2 $18) 60... Be5 (60... Rd7 $16) 61. Nc4 Bc7 62. Kf3 {White is more active.} Rd7 (62... Kd7 $16) 63. Kg4 Rd8 64. Nd2 Rd7 65. Nf3 Rd8 66. Nh4 Be5 67. Rf2 $2 ({White must play} 67. Nf3 $18) 67... Rd7 $2 {[%mdl 8192]} (67... Ke7 $1 $11) 68. Nf5 Bc7 69. Kf3 Bd6 70. Ke2 Be5 71. Rf1 Rc7 72. Kf3 Bd6 73. Re1 Rd7 74. Rg1 {[%cal Of5h6]} Bf8 75. Kf4 Bd6+ 76. Kg4 Bf8 77. Kf3 Ke5 78. Rg4 Rb7 79. Ke2 Rd7 80. Kd1 Rc7 81. Nh4 Ke6 82. Rf4 Rd7 (82... Bd6 {is a better defense.} 83. Rf1 Bh2) 83. Rf5 Be7 84. Ke2 (84. c3 $18 {is more deadly. Black must now prevent cxd4.} dxc3 85. Kc2) 84... Bd8 $16 85. Kf3 Bc7 86. Ng2 $2 (86. Kf2 $18) 86... Be5 87. Nf4+ Bxf4 88. Kxf4 $11 {KR-KR} Rd8 89. Kf3 Rd6 90. Kg3 Rd8 91. Kg4 Rd7 92. Rf1 Rd8 93. e5 fxe5 94. Rf7 (94. Rf3 $11) 94... Rd7 $14 95. Rf8 {Black is now going downhill.} e4 $2 {[%mdl 8192]} 96. dxe4 $18 d3 (96... Rc7 $142 97. Rb8 c4 98. Rxb6+ Ke5) 97. Re8+ Kd6 98. cxd3 Kc6 99. Rc8+ Kb7 100. Rg8 Kc6 101. Kf4 b5 102. Ke3 bxa4 103. bxa4 Re7 104. Rf8 Kd6 105. Rd8+ Kc7 106. Rd5 Kc6 107. Rf5 Kd6 108. d4 cxd4+ 109. Kxd4 Ra7 110. Rb5 Ke6 111. Rb6+ Ke7 112. Ke5 Rc7 113. Rb5 Ra7 114. Kf5 Kd6 115. e5+ Kc6 116. Ke6 {White mates.} Ra8 117. Kf7 Ra7+ {Weighted Error Value: White=0.19 (very precise) /Black=0.22 (precise)} 118. Kf8 1-0

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.11"]
[Round "2.1"]
[White "Dzagnidze, Nana"]
[Black "Assaubayeva, Bibisara"]
[Result "1-0"]
[Annotator "Tactical Analysis 7.0"]
[ECO "A50"]
[WhiteElo "2505"]
[BlackElo "2509"]
[PlyCount "109"]
[GameId "2187700785986049"]
[EventDate "2025.06.10"]

1. d4 Nf6 2. c4 c6 3. Nf3 d5 4. Qb3 e6 5. Bg5 Nbd7 6. e3 h6 7. Bh4 Be7 8. Nc3 O-O 9. Rc1 b6 10. cxd5 exd5 11. Bd3 Bb7 12. O-O {D58: Queen's Gambit Declined: Tartakower Defence.} Ne4 13. Bg3 Nxg3 14. hxg3 {The position is equal.} Nf6 15. Rfe1 $146 ({Predecessor:} 15. Rfd1 Rc8 16. Ne5 Bd6 17. Bf5 Rc7 18. e4 dxe4 19. Nxe4 Nxe4 20. Bxe4 Bxe5 21. dxe5 {1-0 Vovk,Y (2617)-Dreev,A (2644) Wch Rapid Berlin 2015 (3)}) 15... Rb8 16. Bb1 c5 17. Qc2 Re8 18. Rcd1 Qc8 (18... Bd6 19. Nb5 c4 20. Nxd6 Qxd6 21. Ne5 Bc8) 19. dxc5 (19. Ne5 {keeps more tension.} Bd6 20. f4 a6 21. g4) 19... bxc5 {[#]} (19... Qxc5 $11 20. Rc1 Qa5) 20. Nxd5 $1 $14 Bxd5 {[#]} 21. Rxd5 {[%mdl 64] Back Rank} Rxb2 22. Qxb2 Nxd5 {[%cal Bf6d5,Bd5c7,Bc7e6][%mdl 32]} 23. e4 $1 Nc7 24. Bd3 {[%cal Bb1d3,Bd3c4,Bc4b3][%mdl 32] Wards off Qa6} Ne6 25. Bc4 {Black is weak on the light squares} Qc7 26. Rb1 Bd6 27. Qc3 Rb8 28. Rxb8+ Qxb8 29. Qd3 Bf8 (29... Nd4 $11 {keeps the balance.}) 30. Bb3 (30. Qd5 $16) 30... Qd6 31. Bd5 (31. Qxd6 {simplifies} Bxd6 32. Bxe6 fxe6 33. Nd2) 31... Be7 (31... Nc7 $142) 32. Qb5 Nc7 (32... Kf8 $16) 33. Qb8+ $18 Qd8 34. Qxa7 {White has more active pieces.} Nxd5 35. exd5 $16 {[%mdl 4096] Endgame KQB-KQN. White is a pawn up.} Bf8 (35... c4) 36. Qb7 $18 Qf6 37. Qb3 Qa1+ (37... Qa6 {was worth a try.}) 38. Kh2 Qf1 39. Qc2 (39. Qb6 $18 {is more deadly.}) {Black cannot hold the game after this.} 39... c4 $2 (39... Bd6 $16) 40. Ne5 c3 (40... Bc5 $142 41. Qf5 (41. Nxc4 Bxf2 42. Ne5 Qg1+ 43. Kh3 g6 $11) 41... Qxf2 42. Qxf2 Bxf2) 41. Qxc3 Qxf2 42. Qc8 Qd4 43. Nd7 Qxd5 44. Qxf8+ ({Not} 44. Nxf8 Qh5+ 45. Qh3 (45. Kg1 Qd1+ 46. Kh2 Qh5+ 47. Qh3 Qd5 $18) 45... Qd5 $18 (45... Qxh3+ $2 46. gxh3 Kxf8 47. g4 $18)) 44... Kh7 45. Qe7 Qh5+ 46. Qh4 Qd5 47. Qa4 {Qc2+ would now be deadly.} Qh5+ 48. Kg1 Qd5 {Prevents Qe4+.} 49. Qc2+ Kg8 50. Qc8+ Kh7 51. Nf8+ Kg8 52. Ne6+ (52. Ng6+ $142 Kh7 53. Ne7 Qd1+ 54. Kh2 Qh5+ 55. Qh3 (55. Kg1 Qd1+ 56. Kh2 Qh5+ 57. Qh3 Qc5 $18) 55... Qc5 56. Qf5+ Qxf5 57. Nxf5) 52... Kh7 {White is clearly winning.} 53. Qc2+ g6 54. Nf4 Qd4+ {Weighted Error Value: White=0.14 (very precise) /Black=0.67} 55. Kh2 1-0

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.11"]
[Round "2.2"]
[White "Muzychuk, Mariya"]
[Black "Lee, Alice"]
[Result "0-1"]
[Annotator "Tactical Analysis 7.0"]
[ECO "B30"]
[WhiteElo "2492"]
[BlackElo "2389"]
[PlyCount "102"]
[GameId "2187715311024807"]
[EventDate "2025.06.10"]

1. e4 c5 2. Nf3 Nc6 3. Bb5 d6 4. O-O Bd7 5. Re1 a6 6. Bxc6 Bxc6 7. d4 cxd4 8. Nxd4 Rc8 {B51: Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} 9. c4 g6 $1 {[%mdl 4] is more profitable than 9...Nf6 at the moment.} 10. Nc3 Bg7 {White has an edge.} 11. b3 Bd7 {[%cal Ob7b5]} 12. Bb2 Nf6 $1 13. Rc1 $146 ({Predecessor:} 13. Qd3 O-O 14. Rad1 Ng4 15. h3 Ne5 16. Qe3 Rc5 17. Ba3 Rc8 18. Bb2 Qa5 19. Nd5 {1-0 Gergacz,B (2064)-Foki,R (1836) HUN-chT2 Szechenyi 0203 Hungary 2002 (2)}) 13... O-O 14. h3 Re8 15. Rc2 Qa5 16. a4 Qg5 (16... e5 $11 17. Nf3 Qb4) 17. Bc1 (17. e5 $1 $16 {[%cal Re5f6]} dxe5 18. Nf3) 17... Qh5 $14 18. Qd3 Bc6 19. b4 Nd7 $1 20. f4 {Repels Ne5} (20. Nf3 $11) 20... a5 $15 21. b5 Nc5 $36 {[%mdl 2048] Black is pushing.} 22. Qe3 e5 $1 23. Nde2 Bxe4 {Black is more active.} {This costs White the game.} 24. Ng3 $2 (24. Nxe4 $17 {was forced.} exf4 25. Nxf4) 24... exf4 $1 $19 (24... Bxc2 25. Nxh5 gxh5 26. Ba3 $14) 25. Qxf4 (25. Nxh5 $142 fxe3 26. Nxe4 Rxe4 27. Nxg7) 25... Bxc2 {A strong pair of Bishops.} (25... Bd4+ 26. Be3 Bxc2 27. Nxh5 Bxc3 28. Nf6+ Bxf6 29. Qxf6 $16) 26. Rxe8+ Rxe8 27. Nxh5 Re1+ (27... Bxc3 $2 28. Bd2 (28. Qxd6 $2 Re1+ 29. Kh2 Be5+ $19) 28... gxh5 29. Bxc3 $18) 28. Kh2 {[#]} Be5 {[%mdl 64] Pin} (28... gxh5 $2 29. Qh4 (29. Qxd6 $2 Be5+ 30. Bf4 Bxd6 $19) (29. Qg5 h6 $11) 29... Rxc1 30. Qd8+ Bf8 31. Qg5+ (31. Qxa5 $2 Bg6 $19) 31... Bg7 32. Qxc1 Be5+ 33. Kg1 Bd4+ 34. Kh1 $18) (28... Bxc3 29. Nf6+ Kg7 (29... Bxf6 30. Qxf6 Rxc1 31. Qxd6 $16) 30. Nh5+ Kg8 (30... gxh5 $2 31. Qg3+ Kf8 32. Bh6+ Ke8 33. Qxc3 $18) 31. Nf6+ Kg7 32. Nh5+ Kg8 $11) 29. Nf6+ Kh8 {[%cal Oe1c1]} 30. Qxe5 dxe5 (30... Rxe5 31. Bb2 $19) 31. Bh6 Bd3 (31... Nxa4 $2 32. Ncd5 Nc5 33. Ne8 $19) ({Not} 31... Bxa4 32. Bf8 Rc1 33. Nfd5 $19) 32. Ncd5 Bxc4 (32... Nxa4 33. Ne8 f5 34. Ndf6) 33. Nc7 Ne4 ({Inferior is} 33... Nxa4 34. Nce8) 34. Ng4 f6 35. Ne8 {[#] Intending Bg7+ and mate.} Kg8 36. Nexf6+ Nxf6 37. Nxf6+ {[%mdl 4096] Endgame KRB-KBN} Kf7 38. Nxh7 Re2 39. Kg1 Bb3 40. Ng5+ Ke7 41. Kf1 Rc2 42. Bg7 Bxa4 43. b6 Bb5+ 44. Kg1 Bc6 45. g4 e4 {Black mates.} 46. Bd4 a4 47. h4 a3 48. h5 gxh5 49. gxh5 a2 50. h6 {[#]} a1=Q+ $1 {[%mdl 64] Decoy} 51. Bxa1 {Weighted Error Value: White=0.38/Black=0.07 (flawless)} Rc1+ 0-1

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.11"]
[Round "2.3"]
[White "Kashlinskaya, Alina"]
[Black "Yip, Carissa"]
[Result "1/2-1/2"]
[Annotator "Tactical Analysis 7.0"]
[ECO "C92"]
[WhiteElo "2459"]
[BlackElo "2431"]
[PlyCount "153"]
[GameId "2187730217626501"]
[EventDate "2025.06.10"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7 10. d4 Re8 11. Nbd2 Bf8 12. a4 exd4 {C92: Closed Ruy Lopez: 9...Be6, Karpov and Flohr-Zaitsev Variations.} 13. cxd4 {aiming for axb5.} Na5 14. Bc2 {[%cal Bb3c2,Bc2d3,Bd3c4][%mdl 32]} b4 {White is slightly better.} 15. b3 g6 16. Bd3 Bg7 17. Bb2 Nd7 (17... d5 $11 18. e5 Nd7) 18. Qc2 $14 Rc8 $146 ({Predecessor:} 18... d5 19. Rac1 dxe4 20. Bxe4 Bxe4 21. Nxe4 Nf6 22. Nxf6+ Qxf6 {1-0 Aizenberg,B (2433)-Tifferet,S (2286) ISR-chT Israel 2025 (4.1)}) 19. Nc4 Nxc4 20. Bxc4 Nb6 (20... c6 $14 {deserves consideration.}) 21. d5 ({Better is} 21. a5 $16 Nxc4 22. bxc4) 21... Bxb2 (21... c6 {feels hotter.} 22. Bxg7 cxd5 23. Bd4 dxc4 24. a5 Nd7) 22. Qxb2 c6 $1 23. dxc6 (23. Qd4 $1 $14) 23... Nxc4 $11 24. bxc4 Bxc6 25. Qxb4 Rxe4 26. Rxe4 Bxe4 27. Nd2 Ba8 28. Re1 a5 29. Qb2 Qg5 {[%csl Ga8][%cal Rg5g2] [#]} 30. Ne4 Bxe4 31. Rxe4 {[%cal Be1e4,Be4f4,Bf4f6][%mdl 4128] Endgame KQR-KQR} Qc5 32. Qf6 Qb4 {[%csl LRa4,LRc4]} 33. Rf4 Qe1+ 34. Kh2 Qe6 35. Qxe6 fxe6 {KR-KR} 36. Kg3 Rb8 37. Rf6 Re8 38. Rf3 Rc8 39. Rd3 Rc6 40. f4 Kf7 41. Kf3 h5 ({But not} 41... Rxc4 42. Rxd6 h6 (42... Rxa4 43. Rd7+ Kf6 44. Rxh7 $11) 43. g4 $17) 42. Ke3 {[%cal Oc4c5]} Rxc4 43. Rxd6 {The position is equal.} Rxa4 44. Rd7+ Kf6 45. g4 {[#]} hxg4 46. hxg4 g5 47. fxg5+ Kxg5 48. Rd6 Ra1 49. Kf3 Ra3+ 50. Ke4 Ra4+ 51. Kf3 Ra3+ 52. Ke4 Ra1 53. Kf3 $1 Kf6 54. g5+ Kf5 {[%cal Oa1e1] ...Re1! is the strong threat.} (54... Kxg5 $2 55. Rxe6 a4 56. Re2 $19) 55. g6 Ra3+ 56. Kf2 Kxg6 57. Rxe6+ Kf5 58. Ra6 Ke4 59. Ke2 Ra2+ 60. Kd1 Kd3 {[%cal Ra2a1]} 61. Kc1 Kc3 62. Kb1 {Dodges Ra1+} Rb2+ 63. Ka1 {White wants to mate with Rc6+.} Rb5 64. Ka2 Kb4 65. Rh6 Rc5 66. Rh4+ Rc4 67. Rxc4+ Kxc4 {KP-K. Black is a pawn up.} 68. Ka3 Kb5 {[%cal Bc4b5,Bb5a5,Ba5b4,Bb4a4,Ba4b3,Bb3c2][%mdl 32]} 69. Kb3 a4+ {[%cal Ba5a4,Ba4a3][%mdl 32]} 70. Ka3 {[%cal Bb3a3,Ba3a2,Ba2b2][%mdl 32]} Ka5 71. Ka2 Kb4 72. Kb2 a3+ 73. Ka2 Ka4 74. Ka1 Kb3 75. Kb1 a2+ 76. Ka1 Kc2 {Weighted Error Value: White=0.06 (flawless) /Black=0.04 (flawless)} 77. Kxa2 1/2-1/2

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.11"]
[Round "2.4"]
[White "Tan, Zhongyi"]
[Black "Koneru, Humpy"]
[Result "1/2-1/2"]
[Annotator "Tactical Analysis 7.0"]
[ECO "C28"]
[WhiteElo "2546"]
[BlackElo "2543"]
[PlyCount "82"]
[GameId "2187749521792290"]
[EventDate "2025.06.10"]

1. e4 e5 2. Bc4 Nf6 3. Nc3 Nc6 4. d3 Bb4 5. Nf3 d5 6. exd5 Nxd5 7. O-O Bxc3 8. bxc3 O-O 9. Bd2 Bg4 10. h3 Bh5 11. a4 $146 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} ({Predecessor:} 11. Re1 Re8 12. Rb1 Nb6 13. Bb5 Qd6 14. c4 f6 15. Be3 Qd7 16. g4 Bf7 17. Nh4 a6 18. Bxc6 Qxc6 {0-1 Dardha,D (2619)-Lazavik,D (2553) Chess.com U20 Speed Chess.com INT blitz 2023 (1.10)}) 11... Nb6 (11... h6 $11) 12. Bb5 f5 13. a5 $1 {White is slightly better.} e4 $1 14. axb6 (14. Bxc6 $14 bxc6 15. axb6 exf3 16. b7 (16. bxa7 Qh4 $17)) 14... exf3 $11 15. Re1 (15. gxf3 $2 Ne5 16. Ra4 (16. Rxa7 $2 Rxa7 17. bxa7 Nxf3+ $19) (16. bxa7 $2 Nxf3+ 17. Kg2 Nh4+ {[%csl Od1][%mdl 64] Discovered Attack} 18. Kg1 Bxd1 $19) 16... Nxf3+ 17. Kh1 Nxd2 (17... axb6 $2 18. Bc4+ Kh8 19. Rxa8 $17) (17... cxb6 $2 18. Rg1 $19) 18. Qxd2 Qd5+ (18... axb6 19. Rxa8 Qxa8 20. Bc4+ Bf7 21. Bxf7+ Rxf7 22. Re1 $17) (18... cxb6 19. Rd4 $17) 19. Kh2 Qxb5 $19) (15. Bxc6 fxg2 16. Qxh5 gxf1=Q+ 17. Kxf1 bxc6 18. bxa7 Qd5 $11) 15... Qh4 (15... cxb6 {simplifies} 16. Bc4+ Kh8 17. g3 Re8) 16. Ra4 (16. bxc7 $2 fxg2 17. f3 (17. Bc4+ $2 Kh8 $19) 17... Qxh3 $19) (16. gxf3 $2 Qxh3 17. Bc4+ (17. bxc7 $2 Bxf3 $19) 17... Kh8 $19) (16. Bxc6 bxc6 17. Rxa7 (17. b7 Rab8 $17) 17... fxg2 (17... cxb6 18. Qa1 $11) 18. Rxa8 Rxa8 (18... Bxd1 19. Rxf8+ Kxf8 20. bxc7 Kf7 21. c8=Q)) 16... f4 17. Bxc6 (17. bxc7 $2 fxg2 18. Bxc6 (18. Bc4+ $2 Kh8 $19) 18... Bxd1 $19) 17... bxc6 18. b7 $36 {[%mdl 2048] White has the initiative.} (18. bxc7 $2 fxg2 19. f3 Qxh3 20. Rxf4 Rfe8 $19 (20... Bxf3 21. Qxf3 Qxf3 22. Rxf3 $17)) 18... Rab8 {Threatens to win with ...fxg2.} 19. Re5 $1 {Some like it hot} g6 (19... Rxb7 $11 {remains equal.} 20. Rxf4 Rxf4 21. Bxf4 Qxf4 22. Rxh5 Rb5) 20. Qf1 {[%cal Oa4f4]} ({Not} 20. gxf3 Qxh3 21. Qf1 Qxf3 $17) (20. Rxa7 {is more complex.} fxg2 21. Rxh5 gxh5 22. Qf3) 20... fxg2 21. Qxg2 Rxb7 {[#]} 22. Rb4 {White is more active.} (22. Ree4 $1 $16 {[%cal Re4f4]}) 22... Rxb4 (22... Rb6 $11) 23. cxb4 $16 f3 {[#]} (23... Kg7 $16) 24. Qg3 $2 ({Better is} 24. Qh2 $1 $18) 24... Qxg3+ $11 {The position is equal.} 25. fxg3 {[%mdl 4096] Endgame KRB-KRB. Black is a pawn up.} f2+ 26. Kf1 {g4 would now be deadly.} Bd1 27. Bh6 Rf5 28. Rxf5 gxf5 {KB-KB. Black is a pawn up.} 29. c3 Bc2 30. d4 Kf7 31. Kxf2 Ke6 32. Ke3 Kd5 33. Bf4 Kc4 34. Kd2 Be4 35. Bxc7 Bg2 36. h4 h5 37. Bf4 a6 38. Be3 Bf3 39. Bf4 Bg2 40. Be3 Bf3 41. Bf4 {Weighted Error Value: White=0.18 (very precise) /Black=0.23 (precise)} Bg2 1/2-1/2

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.11"]
[Round "2.5"]
[White "Batsiashvili, Nino"]
[Black "Dronavalli, Harika"]
[Result "1/2-1/2"]
[Annotator "Tactical Analysis 7.0"]
[ECO "D35"]
[WhiteElo "2462"]
[BlackElo "2483"]
[PlyCount "108"]
[GameId "2187760080076332"]
[EventDate "2025.06.10"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5 5. Bg5 Be6 6. e3 {D35: Queen's Gambit Declined: Exchange Variation.} Nbd7 7. Bd3 c6 8. h3 {White is slightly better.} Be7 9. Nf3 O-O 10. O-O Ne8 11. Bf4 Nd6 12. Qc2 g6 $146 ({Predecessor:} 12... h6 13. Ne5 Nf6 14. Na4 Nde4 15. f3 Nd6 16. Nc5 Qc8 17. g4 g5 {1-0 Smolik,J (2291)-Bokhnak,T (2098) Pardubice Czech op-A 33rd 2022 (5)}) 13. Rac1 Rc8 14. Na4 Bf5 15. Bxd6 (15. Bxf5 $14 Nxf5 16. Qb3) 15... Bxd3 $11 16. Bxe7 Bxc2 {[%cal Bd3c2,Bc2a4,Ba4b5][%mdl 32]} 17. Bxd8 Bxa4 18. Bh4 Bb5 19. Rfe1 Rfe8 {Inhibits Ne5.} 20. Rc3 Re6 21. Nd2 {[%cal Bf3d2,Bd2b3,Bb3c5][%mdl 32]} h6 {The position is equal.} 22. f3 Rce8 23. Bf2 {White is weak on the light squares} f5 24. a4 Bxa4 {[%cal Of5f4]} 25. Ra1 Nb6 26. Nb3 {[#]} R6e7 27. Nc5 Bb5 28. Rxa7 Nc4 29. Rxb7 Nxb2 30. Rxe7 Rxe7 31. Ra3 Kf7 32. Ra1 Nd3 33. Nxd3 Bxd3 {[%mdl 4096] Endgame KRB-KRB} 34. Ra3 Bc4 35. Bg3 g5 36. Be5 Rb7 37. Ra8 Rb1+ 38. Kh2 Rb2 39. Rh8 Bf1 40. Rxh6 Bxg2 41. Rf6+ Ke8 42. Rxf5 {And now Kg3 would win.} Bxf3+ 43. Kg3 Be4 {[%csl Ge4][%cal Rb2g2] [#]} 44. Rxg5 Rg2+ 45. Kh4 Rxg5 46. Kxg5 {KB-KB. White is a pawn up.} Kf7 47. h4 Kg8 48. h5 Kf7 49. h6 Ke6 50. Kf4 Bh7 51. Bg7 Be4 52. Be5 Bh7 53. Bg7 Be4 54. Be5 {Weighted Error Value: White=0.03 (flawless) /Black=0.02 (flawless)} Bh7 1/2-1/2

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.12"]
[Round "3.1"]
[White "Dronavalli, Harika"]
[Black "Muzychuk, Mariya"]
[Result "1/2-1/2"]
[Annotator "Tactical Analysis 7.0"]
[ECO "C46"]
[WhiteElo "2483"]
[BlackElo "2492"]
[PlyCount "82"]
[GameId "2188305784310288"]
[EventDate "2025.06.10"]

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a4 Bb4 5. Bd3 O-O 6. O-O {C47: Scotch Four Knights and Four Knights with 4 g3.} d6 7. Nd5 a5 8. c3 Bc5 9. Bc2 {[#]} Nxd5 ({Much weaker is} 9... Bg4 10. h3 Bxf3 11. Qxf3 $14) 10. exd5 Ne7 {[%cal Oc8f5]} 11. Ng5 Bf5 (11... Nxd5 $2 12. d4 (12. Qh5 h6 $16) 12... exd4 13. Bxh7+ Kh8 14. cxd4 $18) 12. Bxf5 Nxf5 13. Qh5 {[%csl Gg5][%cal Rh5h7] [#]} h6 $146 ({Predecessor:} 13... Nh6 14. d3 Qf6 15. Ne4 Qg6 16. Qxg6 hxg6 17. Re1 f6 18. Bxh6 gxh6 19. Re2 Bb6 {1-0 Teimouri Yadkuri,S (2128)-Azimi,A (1847) Tehran zt 3.1 2023 (2)}) 14. Ne4 g6 15. Qh3 {[%cal Od2d4]} h5 16. d4 exd4 17. Bd2 f6 18. Rfe1 Qd7 19. cxd4 Bxd4 20. Bc3 {Threatens to win with Bxd4.} Qf7 21. Bxd4 Nxd4 22. Qd3 {Repels Nc2} Nf5 (22... Qxd5 $2 {too greedy.} 23. Nc3 $18) 23. Rac1 Qg7 (23... Rae8 $15) 24. Nc3 {The position is equal.} Rae8 25. Nb5 Rxe1+ 26. Rxe1 Qd7 27. Rc1 c6 28. dxc6 bxc6 29. Qc4+ Kg7 30. Qxc6 Qxc6 31. Rxc6 $11 {[%cal Og1f1][%mdl 4096] Endgame KRN-KRN} Re8 32. Kf1 {[%cal Ob2b3] Prevents Re1+} Re4 33. b3 Rb4 34. Nxd6 Nxd6 35. Rxd6 Rxb3 {KR-KR} 36. Rd5 Rb1+ 37. Ke2 Rb2+ 38. Ke3 Rb3+ 39. Ke2 Rb2+ 40. Ke3 Rb3+ 41. Ke2 {Weighted Error Value: White=0.04 (flawless) /Black=0.06 (flawless)} Rb2+ 1/2-1/2

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.12"]
[Round "3.2"]
[White "Yip, Carissa"]
[Black "Batsiashvili, Nino"]
[Result "1-0"]
[Annotator "Tactical Analysis 7.0"]
[ECO "C50"]
[WhiteElo "2431"]
[BlackElo "2462"]
[PlyCount "79"]
[GameId "2188309625490333"]
[EventDate "2025.06.10"]

1. e4 e5 2. Bc4 Nf6 3. d3 Bc5 4. Nf3 Nc6 5. Nc3 d6 6. Na4 Bb6 7. Nxb6 axb6 8. c3 {C50: Hungarian Defence and Giuoco Pianissimo.} h6 9. O-O O-O 10. Re1 {The position is equal.} Re8 11. Bd2 $146 ({Predecessor:} 11. b4 Be6 12. Bb5 Bd7 13. Bd2 Ne7 14. Bc4 b5 15. Bb3 Ng6 16. a4 bxa4 17. Bxa4 Bxa4 18. Rxa4 {0-1 Martaler,J (2177)-Menezes,C (2417) BL2-Sued 2122 Germany 2022 (9.6)}) 11... Be6 12. Bb5 Bd7 (12... Rxa2 $6 13. Rxa2 Bxa2 14. c4 $16) (12... Bxa2 $2 13. c4 $16) 13. a3 Ne7 14. Bxd7 Qxd7 15. c4 Ng6 16. h3 b5 17. Qb3 bxc4 18. dxc4 b6 19. a4 Nh5 {[%cal Bf6h5,Bh5f4,Bf4h3,Bh3f2][%mdl 32]} 20. Qb5 Qe6 21. Qd5 Qf6 (21... Ngf4 {simplifies} 22. Bxf4 Nxf4 23. Qxe6 Nxe6 24. b4 Ra7) 22. Qc6 Ngf4 23. Bxf4 Nxf4 $40 {[%mdl 128] Black mounts an attack.} 24. Qxc7 {[%cal Oc7d7]} Qg6 {[%csl Gf4][%cal Rg6g2]} 25. g3 Nxh3+ 26. Kf1 {[%cal Oc7c6]} Re6 (26... Qh5 $15 27. Ra3 Re6) 27. Ra3 $11 Rf6 28. Qd7 {Prevents Qg4.} Qh5 {[%cal Og7g5]} 29. Kg2 $1 {Active counter play!} Nxf2 {[%mdl 64] [#] Decoy} 30. Kxf2 ({Reject} 30. Qc6 Qh3+ 31. Kxf2 Rc8 $15 (31... Qh2+ 32. Ke3 $11)) 30... Qh2+ {[%mdl 64] Skewer} 31. Ke3 $2 {[%mdl 8192]} (31. Kf1 $11) 31... Qxg3 $2 (31... Qxb2 $19 32. Rea1 Qg2) 32. Rf1 $1 $15 g5 $2 (32... Rf4 $15 {keeps the upper hand.} 33. Qb7 Rf8) 33. Ke2 $16 {[%cal Be3e2,Be2f1,Bf1g1][%mdl 32] Threatens to win with Rg1.} {This costs Black the game.} g4 $2 (33... Rf4 $16) 34. Rg1 $18 {[%mdl 64] [#] Skewer. White is clearly winning.} gxf3+ 35. Kf1 Qxg1+ 36. Kxg1 f2+ 37. Kf1 Kh7 {...Rg8 would now be deadly.} 38. Rg3 b5 39. Qg4 Rg6 {Weighted Error Value: White=0.22 (precise) /Black=0.45} 40. Qf5 1-0

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.12"]
[Round "3.3"]
[White "Lee, Alice"]
[Black "Dzagnidze, Nana"]
[Result "1/2-1/2"]
[Annotator "Tactical Analysis 7.0"]
[ECO "A50"]
[WhiteElo "2389"]
[BlackElo "2505"]
[PlyCount "77"]
[GameId "2188313272016105"]
[EventDate "2025.06.10"]

1. d4 Nf6 2. c4 b6 3. Nc3 Bb7 4. a3 g6 5. Qc2 d5 6. cxd5 {A50: Queen's Fianchetto Defence (1 d4 Nf6 2 c4 b6).} Nxd5 7. e4 $146 ({Predecessor:} 7. Nf3 Bg7 8. e4 Nxc3 9. bxc3 O-O 10. Bc4 c5 11. O-O cxd4 12. cxd4 Nc6 13. Rd1 {0-1 Berdnyk,M (2308)-Sychev,K (2572) Titled Tuesday intern op 06th Apr Chess.com INT blitz 2021 (3)}) 7... Nxc3 8. bxc3 {White is slightly better.} Bg7 9. Bc4 O-O 10. Ne2 (10. Nf3 $14) 10... Nc6 11. O-O e6 12. Ba2 Na5 13. Bb2 (13. Be3 $11 {keeps the balance.}) 13... c5 $17 14. Rad1 cxd4 (14... Qc8 $15) 15. cxd4 $11 Rc8 {Dodges d5} 16. Qd3 b5 {[%mdl 64] [#] Deflection} 17. Qxb5 {Bc3 is the strong threat. The position is equal.} Bxe4 {aiming for ...Rb8.} 18. Bc3 Nc6 19. d5 Bxd5 20. Bxg7 Kxg7 21. Nf4 (21. Bxd5 {simplifies} exd5 22. Rxd5 Qf6 23. g3) 21... Qb6 22. Qxb6 axb6 23. Nxd5 exd5 24. Rxd5 Ra8 25. Rd6 Ne5 26. Rxb6 Rxa3 27. Bb3 Nd7 28. Rb5 Rb8 29. Rxb8 Nxb8 {[%mdl 4096] Endgame KRB-KRN} 30. Bd5 Nd7 31. h3 Nf6 32. Bf3 h5 33. Rb1 Ra7 34. Rb7 Ra1+ 35. Kh2 Ra2 36. Kg1 Ra1+ 37. Kh2 Ra2 38. Kg1 Ra1+ {Weighted Error Value: White=0.08 (flawless) /Black=0.05 (flawless)} 39. Kh2 1/2-1/2

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.12"]
[Round "3.4"]
[White "Assaubayeva, Bibisara"]
[Black "Tan, Zhongyi"]
[Result "1/2-1/2"]
[Annotator "Tactical Analysis 7.0"]
[ECO "C42"]
[WhiteElo "2509"]
[BlackElo "2546"]
[PlyCount "89"]
[GameId "2188316683353601"]
[EventDate "2025.06.10"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4 d5 6. Bd3 Bd6 7. O-O O-O 8. c4 c6 9. Re1 Bf5 10. Qb3 Qd7 {C42: Petroff Defence: 3 Nxe5 and unusual White 3rd moves.} 11. Nc3 Nxc3 12. Bxf5 Qxf5 {The position is equal.} 13. bxc3 {[#]} (13. Qxb7 {looks sharper.} Ne4 14. Qxa8 Qd7 15. cxd5 cxd5 16. Rxe4 Nc6 17. Qxf8+ Kxf8 18. Re2) 13... b6 14. cxd5 cxd5 15. Qb5 Qd7 $1 (15... Nd7 $2 16. Qc6 $18) 16. Rb1 (16. Qxd5 $2 Bxh2+ 17. Nxh2 Qxd5 $19) 16... Rd8 17. g3 (17. Qxd5 $2 Bxh2+ 18. Nxh2 Qxd5 $19) 17... Bf8 18. Ne5 $146 ({Predecessor:} 18. a4 Nc6 19. Kg2 Rac8 20. Qd3 Re8 21. Bf4 f6 22. h4 Na5 23. Rxe8 Rxe8 24. Rb5 {1-0 Caruana,F (2782)-Paravyan,D (2612) Titled Tuesday intern op 04th Jul Late Chess.com INT blitz 2023 (11)}) 18... Qxb5 19. Rxb5 Na6 20. Kf1 {[%cal Bg1f1,Bf1e2,Be2d3][%mdl 32]} Rac8 21. Rb3 Nb8 22. Ke2 Nc6 23. Nxc6 Rxc6 24. Kd3 f6 25. Bb2 Rc4 26. Rb5 {[%cal Ob5d5]} Ra4 27. a3 Rd6 28. Re8 Kf7 29. Rc8 a6 30. Rb4 Ra5 31. c4 dxc4+ 32. Rbxc4 {aiming for Bc3.} Rd7 33. a4 g5 34. R4c7 Rxc7 {[%mdl 64] [#] Deflection} 35. Rxc7+ $11 {[%mdl 4096] Endgame KRB-KRB} Ke8 36. Rc8+ Kf7 37. Rc7+ Ke8 38. Rc8+ Kf7 39. Rc6 Rxa4 (39... b5 $11) 40. d5 $1 $16 ({Much weaker is} 40. Rxb6 Rb4 41. Rxb4 Bxb4 $11) 40... Bc5 41. Rc7+ {[%mdl 1024] White has strong compensation.} (41. Rxf6+ Ke8 $14) 41... Kg6 {[%cal Oa4a2]} 42. Rc6 {White is more active.} Kf7 43. Rc7+ Kg6 {[%cal Oa4a2] ...Ra2! would now be deadly.} 44. Rc6 Kf7 {Weighted Error Value: White=0.06 (flawless) /Black=0.04 (flawless)} 45. Rc7+ ({Don't do} 45. Bxf6 g4 $14) (45. Rxf6+ $16 Ke7 46. Be5) 1/2-1/2

[Event "5th Cairns Cup 2025"]
[Site "Saint Louis USA"]
[Date "2025.06.12"]
[Round "3.5"]
[White "Koneru, Humpy"]
[Black "Kashlinskaya, Alina"]
[Result "1/2-1/2"]
[Annotator "Tactical Analysis 7.0"]
[ECO "A05"]
[WhiteElo "2543"]
[BlackElo "2459"]
[PlyCount "70"]
[GameId "2188320584220596"]
[EventDate "2025.06.10"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 c5 4. O-O Nc6 5. d4 cxd4 6. Nxd4 e5 7. Nxc6 bxc6 8. c4 Be6 (8... dxc4 9. Bxc6+ Bd7 10. Bxa8 Qxa8 11. Nc3 $16) 9. Qa4 {D02: 1 d4 d5 2 Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} Qd7 (9... dxc4 $2 10. Qxc6+ (10. Bxc6+ Bd7 $18) 10... Bd7 11. Qxa8 $18) 10. Nc3 Rc8 {[%cal Ba8c8,Bc8c5,Bc5c2][%mdl 32]} 11. cxd5 {White is slightly better.} cxd5 12. Qxd7+ Kxd7 13. Rd1 {[%cal Oc1g5]} Bc5 14. Na4 h6 {Against Bg5 14...h6 has lost popularity.} 15. Nxc5+ Rxc5 16. f4 e4 17. Be3 Rc2 {[%csl LRb2,LRe2]} 18. Bxa7 Bg4 $1 19. Bd4 $146 ({Predecessor:} 19. Rdc1 Rhc8 20. Rxc2 Rxc2 21. e3 Bf3 22. Bh3+ Bg4 23. Bf1 Bf3 24. h3 Nh5 25. g4 Ng3 26. a4 {½-½ Helmer,J (2178)-Andreev,V (2060) SA-2016-0-00539 LSS email}) 19... Bxe2 20. Bh3+ {This pair of bishops is nice. White is weak on the light squares} Bg4 21. Bxf6 {[%csl Od5][%mdl 64] [#] Discovered Attack} Bxh3 22. Bxg7 Rg8 23. Rxd5+ Kc6 24. Rh5 Bg4 25. Rxh6+ Kb7 26. Bd4 Rd8 $1 27. Rb6+ Ka8 28. Rb4 Bf3 29. Re1 {Black must now prevent Re3.} Rd2 {[#]} 30. Re3 Rd1+ $11 {The position is equal.} 31. Kf2 {[%cal Re3a3]} Rd2+ (31... R1xd4 32. Ra3#) 32. Ke1 {[%cal Re3a3]} Rd1+ 33. Kf2 {[%cal Re3a3]} Rd2+ (33... R1xd4 34. Ra3#) 34. Ke1 {[%cal Re3a3]} (34. Kf1 $5 Rd1+ $8 35. Kf2 $11) 34... Rd1+ 35. Kf2 {[%cal Re3a3]} {Weighted Error Value: White=0.05 (flawless) /Black=0.01 (flawless)} Rd2+ ({Stronger than} 35... R1xd4 36. Ra3#) 1/2-1/2

